{"id":66664,"date":"2026-08-18T08:00:48","date_gmt":"2026-08-17T23:00:48","guid":{"rendered":"https:\/\/norimen.net\/?p=66664"},"modified":"2026-08-16T23:47:43","modified_gmt":"2026-08-16T14:47:43","slug":"muc-tieu-nang-luc-bai-kiem-tra-xac-nhan-tiet-kiem-thoi-gian","status":"publish","type":"post","link":"https:\/\/norimen.net\/vi\/anchor-aptitude-confirmation-test-time-saving\/","title":{"rendered":"C\u00e1ch r\u00fat ng\u1eafn th\u1eddi gian th\u1ef1c hi\u1ec7n c\u00e1c th\u1eed nghi\u1ec7m \u0111\u00e1nh gi\u00e1 t\u00ednh ph\u00f9 h\u1ee3p v\u00e0 th\u1eed nghi\u1ec7m x\u00e1c nh\u1eadn c\u1ee7a neo \u0111\u1ea5t | 4 \u0111i\u1ec3m r\u00fat ng\u1eafn th\u1eddi gian \u0111\u01b0\u1ee3c Ti\u00eau chu\u1ea9n thi\u1ebft k\u1ebf v\u00e0 thi c\u00f4ng GA c\u00f4ng nh\u1eadn"},"content":{"rendered":"<p>Xin ch\u00e0o m\u1ecdi ng\u01b0\u1eddi.<\/p>\n<p>\u0110\u00e2y l\u00e0 Enta.<\/p>\n<p>Cu\u1ed1i tu\u1ea7n tr\u01b0\u1edbc, t\u00f4i \u0111\u00e3 \u0111\u1ebfn n\u00fai Kinka sau m\u1ed9t th\u1eddi gian d\u00e0i.<\/p>\n<p>M\u1ea5y ng\u00e0y sau, b\u1eafp ch\u00e2n s\u01b0ng ph\u1ed3ng l\u00ean lu\u00f4n (c\u01b0\u1eddi)<\/p>\n<p>Qu\u1ea3 nhi\u00ean, n\u1ebfu kh\u00f4ng th\u01b0\u1eddng xuy\u00ean \u0111i th\u00ec s\u1ebd m\u1ea5t c\u1ea3m gi\u00e1c th\u1eadt...<\/p>\n<p>C\u01a1 th\u1ec3 lu\u00f4n trung th\u1ef1c, n\u00ean \u0111i\u1ec1u n\u00e0y c\u00e0ng \u0111\u00fang.<\/p>\n<p>H\u00e3y lu\u00f4n v\u1eadn \u0111\u1ed9ng c\u1ea3 t\u00e2m h\u1ed3n l\u1eabn c\u01a1 th\u1ec3 nh\u00e9!!<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-49594\" src=\"https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2023\/08\/2023-08-17-08.31.29.jpg\" alt=\"N\u00fai Kim Hoa\" width=\"600\" height=\"450\" srcset=\"https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2023\/08\/2023-08-17-08.31.29.jpg 600w, https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2023\/08\/2023-08-17-08.31.29-300x225.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>Th\u00f4i, quay l\u1ea1i ch\u1ee7 \u0111\u1ec1 ch\u00ednh<\/p>\n<p>Tr\u01b0\u1edbc \u0111\u00e2y, khi vi\u1ebft v\u1ec1 vi\u1ec7c qu\u1ea3n l\u00fd \u0111\u1ed9 c\u0103ng trong c\u00f4ng ngh\u1ec7 neo n\u1ec1n r\u1eb1ng \u201cTh\u1eddi gian th\u1eed nghi\u1ec7m c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c r\u00fat ng\u1eafn\u201d, th\u00ec,<\/p>\n<p>T\u00f4i \u0111\u00e3 nh\u1eadn \u0111\u01b0\u1ee3c m\u1ed9t s\u1ed1 c\u00e2u h\u1ecfi nh\u01b0: \u201c\u0110i\u1ec1u \u0111\u00f3 \u0111\u01b0\u1ee3c ghi \u1edf \u0111\u00e2u?\u201d v\u00e0 \u201cPh\u1ea3i gi\u1ea3i th\u00edch nh\u01b0 th\u1ebf n\u00e0o th\u00ec m\u1edbi d\u1eabn \u0111\u1ebfn k\u1ebft lu\u1eadn \u0111\u00f3?\u201d.<\/p>\n<p>V\u00ec v\u1eady, l\u1ea7n n\u00e0y,<strong>Ti\u00eau chu\u1ea9n thi\u1ebft k\u1ebf v\u00e0 thi c\u00f4ng neo \u0111\u1ea5t, c\u00f9ng ph\u1ea7n gi\u1ea3i th\u00edch (JGS4101-2012, Hi\u1ec7p h\u1ed9i K\u1ef9 thu\u1eadt \u0110\u1ecba k\u1ef9 thu\u1eadt \u2013 T\u1ed5 ch\u1ee9c c\u00f4ng \u00edch)<\/strong>trong khi th\u1ef1c s\u1ef1 m\u1edf n\u00f3 ra,<\/p>\n<p>T\u00f4i s\u1ebd tr\u00ecnh b\u00e0y nh\u1eefng ph\u1ea7n n\u00e0o c\u1ee7a b\u00e0i thi \u0111\u00e1nh gi\u00e1 n\u0103ng l\u1ef1c v\u00e0 b\u00e0i thi x\u00e1c nh\u1eadn c\u00f3 th\u1ec3 r\u00fat ng\u1eafn, v\u00e0 nh\u1eefng ph\u1ea7n n\u00e0o tuy\u1ec7t \u0111\u1ed1i kh\u00f4ng \u0111\u01b0\u1ee3c r\u00fat ng\u1eafn.<\/p>\n<p>N\u00f3i th\u1eb3ng v\u00e0o k\u1ebft lu\u1eadn tr\u01b0\u1edbc th\u00ec,<strong>Th\u1eddi gian l\u01b0u gi\u1eef \u0111\u01b0\u1ee3c n\u00eau trong t\u00e0i li\u1ec7u h\u01b0\u1edbng d\u1eabn ch\u1ec9 l\u00e0 \u201ctham kh\u1ea3o\u201d ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 \u201ctuy\u1ec7t \u0111\u1ed1i\u201d<\/strong>, v\u00e0<strong>Quy\u1ec1n thay \u0111\u1ed5i \u0111\u00f3 thu\u1ed9c v\u1ec1 k\u1ef9 s\u01b0 ch\u1ecbu tr\u00e1ch nhi\u1ec7m<\/strong>, t\u1ea5t c\u1ea3 ch\u1ec9 g\u00f3i g\u1ecdn trong m\u1ed9t \u0111i\u1ec3m \u0111\u00f3.<\/p>\n<p>Tuy nhi\u00ean, ch\u1ec9 \u0111\u01b0\u1ee3c ph\u00e9p r\u00fat ng\u1eafn trong tr\u01b0\u1eddng h\u1ee3p \u201ck\u1ebft qu\u1ea3 \u0111o \u0111\u1ea1c \u0111\u00e3 x\u00e1c nh\u1eadn r\u1eb1ng c\u00e1c gi\u00e1 tr\u1ecb qu\u1ea3n l\u00fd \u0111\u01b0\u1ee3c \u0111\u00e1p \u1ee9ng\u201d. N\u1ebfu hi\u1ec3u nh\u1ea7m \u0111i\u1ec3m n\u00e0y th\u00ec s\u1ebd kh\u00f4ng \u0111\u01b0\u1ee3c \u0111\u00e2u nh\u00e9 w<\/p>\n<h2>V\u1eady r\u1ed1t cu\u1ed9c, s\u1ef1 kh\u00e1c bi\u1ec7t gi\u1eefa b\u00e0i thi \u0111\u00e1nh gi\u00e1 n\u0103ng l\u1ef1c v\u00e0 b\u00e0i thi x\u00e1c nh\u1eadn l\u00e0 g\u00ec?<\/h2>\n<p>Tr\u01b0\u1edbc khi \u0111i v\u00e0o ch\u1ee7 \u0111\u1ec1 r\u00fat ng\u1eafn th\u1eddi gian, v\u00ec c\u00f3 kh\u00e1 nhi\u1ec1u ng\u01b0\u1eddi v\u1eabn \u0111ang v\u1eadn h\u00e0nh c\u00f4ng vi\u1ec7c t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng m\u00e0 ch\u01b0a l\u00e0m r\u00f5 \u0111i\u1ec3m n\u00e0y, n\u00ean ch\u00fang ta s\u1ebd x\u00e1c nh\u1eadn l\u1ea1i tr\u01b0\u1edbc.<\/p>\n<p><strong>Ti\u00eau chu\u1ea9n thi\u1ebft k\u1ebf v\u00e0 thi c\u00f4ng<\/strong>Trong Ch\u01b0\u01a1ng 8, c\u00e1c th\u1eed nghi\u1ec7m \u0111\u1ed1i v\u1edbi neo \u0111\u01b0\u1ee3c chia th\u00e0nh \u201cth\u1eed nghi\u1ec7m kh\u1ea3o s\u00e1t c\u01a1 b\u1ea3n (th\u1eed nghi\u1ec7m k\u00e9o ra\u30fbth\u1eed nghi\u1ec7m d\u00e0i h\u1ea1n)\u201d v\u00e0 \u201cth\u1eed nghi\u1ec7m t\u00ednh ph\u00f9 h\u1ee3p\u30fbth\u1eed nghi\u1ec7m x\u00e1c nh\u1eadn\u201d.<\/p>\n<p>N\u00f3i m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n, k\u1ef3 thi kh\u1ea3o s\u00e1t c\u01a1 b\u1ea3n l\u00e0<strong>Th\u1eed nghi\u1ec7m nh\u1eb1m m\u1ee5c \u0111\u00edch thi\u1ebft k\u1ebf<\/strong>, b\u00e0i ki\u1ec3m tra n\u0103ng l\u1ef1c v\u00e0 b\u00e0i ki\u1ec3m tra x\u00e1c nh\u1eadn l\u00e0<strong>Th\u1eed nghi\u1ec7m \u0111\u1ec3 \u0111\u00e1nh gi\u00e1 xem neo \u0111\u00e3 ch\u1ebf t\u1ea1o c\u00f3 \u0111\u1ea1t ch\u1ea5t l\u01b0\u1ee3ng theo thi\u1ebft k\u1ebf hay kh\u00f4ng<\/strong>\u0110\u00f3 l\u00e0.<\/p>\n<h3>B\u00e0i ki\u1ec3m tra n\u0103ng l\u1ef1c nh\u1eb1m \u0111\u00e1nh gi\u00e1 \u201cvi\u1ec7c thi\u1ebft k\u1ebf v\u00e0 thi c\u00f4ng c\u00f3 \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n \u0111\u00fang \u0111\u1eafn hay kh\u00f4ng\u201d<\/h3>\n<p>Trong th\u1eed nghi\u1ec7m \u0111\u00e1nh gi\u00e1 t\u00ednh ph\u00f9 h\u1ee3p, ng\u01b0\u1eddi ta s\u1ebd t\u00e1c d\u1ee5ng t\u1ea3i tr\u1ecdng l\u00ean c\u00e1c neo s\u1ebd \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o s\u1eed d\u1ee5ng th\u1ef1c t\u1ebf qua nhi\u1ec1u chu k\u1ef3, t\u1eeb \u0111\u00f3 \u0111\u00e1nh gi\u00e1 t\u00ednh ph\u00f9 h\u1ee3p c\u1ee7a thi\u1ebft k\u1ebf v\u00e0 thi c\u00f4ng d\u1ef1a tr\u00ean \u0111\u1eb7c t\u00ednh t\u1ea3i tr\u1ecdng \u2013 \u0111\u1ed9 d\u1ecbch chuy\u1ec3n.<\/p>\n<p>S\u1ed1 l\u01b0\u1ee3ng l\u00e0<strong>5% t\u1ed5ng kh\u1ed1i l\u01b0\u1ee3ng thi c\u00f4ng v\u00e0 t\u1eeb 3 c\u00e2y tr\u1edf l\u00ean<\/strong>(Ti\u00eau chu\u1ea9n 8.4). S\u1ed1 chu k\u1ef3 th\u01b0\u1eddng \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh l\u00e0 t\u1eeb 5 chu k\u1ef3 tr\u1edf l\u00ean.<\/p>\n<h3>Th\u1eed nghi\u1ec7m x\u00e1c nh\u1eadn nh\u1eb1m ki\u1ec3m tra xem \u201cli\u1ec7u c\u00f3 \u0111\u1ea3m b\u1ea3o an to\u00e0n so v\u1edbi l\u1ef1c neo thi\u1ebft k\u1ebf hay kh\u00f4ng\u201d<\/h3>\n<p>Th\u1eed nghi\u1ec7m x\u00e1c nh\u1eadn l\u00e0 th\u1eed nghi\u1ec7m \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n v\u1edbi m\u1ed9t chu k\u1ef3 t\u1ea3i tr\u1ecdng, nh\u1eb1m x\u00e1c nh\u1eadn r\u1eb1ng l\u1ef1c neo \u0111\u00e1p \u1ee9ng y\u00eau c\u1ea7u an to\u00e0n so v\u1edbi l\u1ef1c neo thi\u1ebft k\u1ebf.<\/p>\n<p>\u0110\u1ed1i t\u01b0\u1ee3ng l\u00e0<strong>To\u00e0n b\u1ed9 s\u1ed1 l\u01b0\u1ee3ng, tr\u1eeb c\u00e1c m\u1ecf neo \u0111\u00e3 \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong b\u00e0i ki\u1ec3m tra t\u00ednh ph\u00f9 h\u1ee3p<\/strong>(Ti\u00eau chu\u1ea9n 8.5).<\/p>\n<p>N\u00f3i c\u00e1ch kh\u00e1c, lo\u1ea1i ki\u1ec3m tra \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n nhi\u1ec1u nh\u1ea5t t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng l\u00e0 ki\u1ec3m tra x\u00e1c nh\u1eadn, v\u00ec v\u1eady,<strong>N\u1ebfu m\u1ed7i \u0111o\u1ea1n ng\u1eafn \u0111i 5 ph\u00fat th\u00ec t\u1ed5ng th\u1eddi gian s\u1ebd thay \u0111\u1ed5i h\u00e0ng gi\u1edd<\/strong>\u0110\u00e2y l\u00e0 n\u00f3 \u0111\u00e2y.<\/p>\n<p>N\u1ebfu ch\u1ec9 tr\u00edch ra nh\u1eefng d\u00f2ng c\u00f3 kh\u1ea3 n\u0103ng \u0111\u01b0\u1ee3c s\u1eed d\u1ee5ng trong th\u1ef1c t\u1ebf t\u1eeb b\u1ea3ng gi\u1ea3i th\u00edch 8.1 (theo ti\u00eau chu\u1ea9n n\u00e0y, trang 104 c\u1ee7a cu\u1ed1n s\u00e1ch), th\u00ec s\u1ebd c\u00f3 k\u1ebft qu\u1ea3 nh\u01b0 sau.<\/p>\n<table>\n<thead>\n<tr>\n<th>M\u1ee5c<\/th>\n<th>B\u00e0i ki\u1ec3m tra n\u0103ng l\u1ef1c<\/th>\n<th>B\u00e0i ki\u1ec3m tra x\u00e1c nh\u1eadn<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>M\u1ee5c \u0111\u00edch<\/td>\n<td>Ki\u1ec3m tra xem thi\u1ebft k\u1ebf v\u00e0 thi c\u00f4ng c\u00f3 ph\u00f9 h\u1ee3p hay kh\u00f4ng<\/td>\n<td>Ki\u1ec3m tra xem c\u00f3 \u0111\u1ea3m b\u1ea3o an to\u00e0n so v\u1edbi l\u1ef1c neo thi\u1ebft k\u1ebf hay kh\u00f4ng<\/td>\n<\/tr>\n<tr>\n<td>Th\u1eddi gian th\u1ef1c hi\u1ec7n<\/td>\n<td>Giai \u0111o\u1ea1n \u0111\u1ea7u c\u1ee7a qu\u00e1 tr\u00ecnh thi c\u00f4ng<\/td>\n<td>Trong qu\u00e1 tr\u00ecnh thi c\u00f4ng<\/td>\n<\/tr>\n<tr>\n<td>S\u1ed1 l\u01b0\u1ee3ng s\u00e1ch \u00e1p d\u1ee5ng<\/td>\n<td>S\u1ed1 l\u01b0\u1ee3ng c\u00f4ng tr\u00ecnh \u00d7 5% v\u00e0 t\u1eeb 3 c\u00f4ng tr\u00ecnh tr\u1edf l\u00ean<\/td>\n<td>To\u00e0n b\u1ed9 s\u1ed1 l\u01b0\u1ee3ng, tr\u1eeb ph\u1ea7n thi \u0111\u00e1nh gi\u00e1 n\u0103ng l\u1ef1c<\/td>\n<\/tr>\n<tr>\n<td>S\u1ed1 chu k\u1ef3 t\u1ea3i tr\u1ecdng<\/td>\n<td>T\u1eeb 5 chu k\u1ef3 tr\u1edf l\u00ean<\/td>\n<td>1 chu k\u1ef3<\/td>\n<\/tr>\n<tr>\n<td>T\u1ea3i tr\u1ecdng t\u1ed1i \u0111a theo thi\u1ebft k\u1ebf<\/td>\n<td>H\u1ea1ng A: 1,25 Td \/ H\u1ea1ng B: 1,10 Td<\/td>\n<td>H\u1ea1ng A: 1,25 Td \/ H\u1ea1ng B: 1,10 Td<\/td>\n<\/tr>\n<tr>\n<td>Th\u1eddi gian duy tr\u00ec t\u1ea3i tr\u1ecdng m\u1edbi<\/td>\n<td>1\u2013180 ph\u00fat (t\u00f9y thu\u1ed9c v\u00e0o \u0111i\u1ec1u ki\u1ec7n n\u1ec1n \u0111\u1ea5t)<\/td>\n<td>1\u201315 ph\u00fat (t\u00f9y thu\u1ed9c v\u00e0o \u0111i\u1ec1u ki\u1ec7n n\u1ec1n \u0111\u1ea5t)<\/td>\n<\/tr>\n<tr>\n<td>Th\u1eddi gian duy tr\u00ec t\u1ea3i tr\u1ecdng trong l\u1ecbch s\u1eed<\/td>\n<td>1\u20132 ph\u00fat<\/td>\n<td>1\u20132 ph\u00fat<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Ngu\u1ed3n: Ti\u00eau chu\u1ea9n thi\u1ebft k\u1ebf v\u00e0 thi c\u00f4ng neo n\u1ec1n, Ph\u1ea7n gi\u1ea3i th\u00edch \u2013 B\u1ea3ng gi\u1ea3i th\u00edch 8.1<\/p>\n<p>Trong b\u1ea3ng n\u00e0y,<strong>D\u00f2ng cu\u1ed1i c\u00f9ng<\/strong>, \u0111\u00e2y ch\u00ednh l\u00e0 \u0111i\u1ec1u t\u00f4i mu\u1ed1n nh\u1ea5n m\u1ea1nh nh\u1ea5t h\u00f4m nay. Sau n\u00e0y t\u00f4i s\u1ebd nh\u1eafc l\u1ea1i m\u1ed9t l\u1ea7n n\u1eefa.<\/p>\n<h2>\u201cN\u01a1i n\u00e0o c\u00f3 ghi \u2018c\u00f3 th\u1ec3 r\u00fat ng\u1eafn th\u1eddi gian\u2019?\u201d<\/h2>\n<p>C\u00e2u h\u1ecfi ch\u00ednh l\u00e0 \u201cN\u1ed9i dung \u0111\u00f3 \u0111\u01b0\u1ee3c ghi \u1edf \u0111\u00e2u?\u201d. Ch\u00fang ta s\u1ebd xem x\u00e9t l\u1ea7n l\u01b0\u1ee3t c\u00e1c ph\u1ea7n li\u00ean quan trong t\u00e0i li\u1ec7u h\u01b0\u1edbng d\u1eabn.<\/p>\n<h3>\u2460 Th\u1eddi gian duy tr\u00ec trong th\u1eed nghi\u1ec7m k\u00e9o \u0111\u01b0\u1ee3c ghi r\u00f5 l\u00e0 \u201ctham kh\u1ea3o\u201d<\/h3>\n<p>\u0110\u1ea7u ti\u00ean l\u00e0 ph\u1ea7n v\u1ec1 ph\u01b0\u01a1ng ph\u00e1p t\u1ea3i tr\u1ecdng trong th\u1eed nghi\u1ec7m kh\u1ea3o s\u00e1t c\u01a1 b\u1ea3n (th\u1eed nghi\u1ec7m k\u00e9o).<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2017\/10\/c64230a5643d6c139b876f15bc9e77ab.jpg\" alt=\"JGS4101-2012: M\u00f4 t\u1ea3 ph\u01b0\u01a1ng ph\u00e1p t\u1ea3i tr\u1ecdng v\u00e0 c\u00e1c th\u00f4ng s\u1ed1 \u0111o l\u01b0\u1eddng trong th\u1eed nghi\u1ec7m k\u00e9o\" \/><\/p>\n<p>T\u1ea1i \u0111\u00e2y, B\u1ea3ng ph\u1ee5 l\u1ee5c 8.2 l\u00e0<strong>\u201cTh\u1eddi gian gi\u1eef t\u1ea3i\u201d tham kh\u1ea3o trong t\u1eebng chu k\u1ef3 khi l\u1eadp k\u1ebf ho\u1ea1ch<\/strong>v\u00e0,<\/p>\n<p><strong>C\u00f3 th\u1ec3 thay \u0111\u1ed5i th\u1eddi gian l\u01b0u gi\u1eef trong b\u1ea3ng n\u00e0y theo quy\u1ebft \u0111\u1ecbnh c\u1ee7a k\u1ef9 s\u01b0 ph\u1ee5 tr\u00e1ch<\/strong>, theo nh\u01b0 n\u1ed9i dung \u0111\u01b0\u1ee3c ghi.<\/p>\n<p>Ti\u1ebfp theo,<strong>Trong qu\u00e1 tr\u00ecnh th\u1eed nghi\u1ec7m, n\u1ebfu c\u00e1c gi\u00e1 tr\u1ecb ki\u1ec3m so\u00e1t nh\u01b0 h\u1ec7 s\u1ed1 tr\u01b0\u1ee3t \u0111\u1ea1t m\u1ee9c \u0111\u1ee7 v\u00e0 \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 l\u00e0 s\u1ebd kh\u00f4ng c\u00f3 thay \u0111\u1ed5i ngay c\u1ea3 khi ti\u1ebfp t\u1ee5c \u0111o l\u01b0\u1eddng, th\u00ec c\u00f3 th\u1ec3 r\u00fat ng\u1eafn th\u1eddi gian duy tr\u00ec.<\/strong>, \u0111i\u1ec1u n\u00e0y \u0111\u00e3 \u0111\u01b0\u1ee3c ghi r\u00f5 r\u00e0ng.<\/p>\n<h3>\u2461 \u0110\u1ecbnh ngh\u0129a v\u1ec1 \u201c\u1ed5n \u0111\u1ecbnh\u201d c\u1ee7a \u0111\u1ed9 d\u1ecbch chuy\u1ec3n l\u00e0 1 mm trong 3 ph\u00fat<\/h3>\n<p>V\u1eady th\u00ec d\u1ef1a v\u00e0o ti\u00eau ch\u00ed n\u00e0o \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh \u201ckh\u00f4ng c\u00f3 s\u1ef1 thay \u0111\u1ed5i\u201d? \u0110i\u1ec1u n\u00e0y c\u0169ng \u0111\u01b0\u1ee3c n\u00eau r\u00f5 \u1edf \u0111\u00e2y.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2017\/10\/b722e25a87ae6b1d4aceb6e2f57d787d.jpg\" alt=\"M\u00f4 t\u1ea3 c\u00e1c ti\u00eau ch\u00ed \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh r\u1eb1ng s\u1ef1 d\u1ecbch chuy\u1ec3n \u0111\u00e3 \u1ed5n \u0111\u1ecbnh\" \/><\/p>\n<p>Vi\u1ec7c x\u00e1c \u0111\u1ecbnh li\u1ec7u \u0111\u1ed9 d\u1ecbch chuy\u1ec3n c\u00f3 \u1ed5n \u0111\u1ecbnh hay kh\u00f4ng \u1edf t\u1eebng giai \u0111o\u1ea1n t\u1ea3i tr\u1ecdng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng c\u00e1ch v\u1ebd \u0111\u1ed3 th\u1ecb bi\u1ec3u di\u1ec5n \u0111\u1ed9 d\u1ecbch chuy\u1ec3n m\u1ed7i ph\u00fat, v\u00e0<\/p>\n<p><strong>Th\u00f4ng th\u01b0\u1eddng, th\u1eddi \u0111i\u1ec3m m\u00e0 s\u1ef1 thay \u0111\u1ed5i \u0111\u1ed9 d\u1ecbch chuy\u1ec3n trong 3 ph\u00fat cu\u1ed1i c\u00f9ng c\u1ee7a th\u1eddi gian gi\u1eef t\u1ea3i gi\u1ea3m xu\u1ed1ng c\u00f2n 1 mm tr\u1edf xu\u1ed1ng \u0111\u01b0\u1ee3c coi l\u00e0,<\/strong><\/p>\n<p><strong>Th\u01b0\u1eddng \u0111\u01b0\u1ee3c coi l\u00e0 \u0111\u00e3 \u1ed5n \u0111\u1ecbnh v\u1ec1 \u0111\u1ed9 d\u1ecbch chuy\u1ec3n<\/strong>\u0111\u01b0\u1ee3c cho l\u00e0 nh\u01b0 v\u1eady.<\/p>\n<p>V\u1ec1 vi\u1ec7c v\u1eadn h\u00e0nh t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng,<strong>1 mm trong 3 ph\u00fat<\/strong>V\u1eady l\u00e0 ch\u1ec9 c\u1ea7n l\u1ea5y \u0111i\u1ec1u \u0111\u00f3 l\u00e0m th\u01b0\u1edbc \u0111o l\u00e0 \u0111\u01b0\u1ee3c r\u1ed3i.<\/p>\n<p>Nh\u00e2n ti\u1ec7n, trong B\u1ea3ng gi\u1ea3i th\u00edch 8.1, m\u1ee5c \u201c\u1ed4n \u0111\u1ecbnh \u0111\u1ed9 d\u1ecbch chuy\u1ec3n\u201d c\u1ee7a th\u1eed nghi\u1ec7m k\u00e9o v\u00e0 th\u1eed nghi\u1ec7m x\u00e1c nh\u1eadn c\u0169ng ghi l\u00e0 \u201ckh\u00f4ng qu\u00e1 1 mm\/3 ph\u00fat\u201d.<\/p>\n<h3>\u2462 Trong \u0111\u00f3 c\u00f3 ghi r\u1eb1ng th\u1eddi gian l\u00e0m b\u00e0i thi \u0111\u00e1nh gi\u00e1 n\u0103ng l\u1ef1c c\u0169ng c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c r\u00fat ng\u1eafn<\/h3>\n<p>Ti\u1ebfp theo l\u00e0 b\u00e0i ki\u1ec3m tra n\u0103ng l\u1ef1c. Trong Ph\u1ee5 l\u1ee5c 8-4, m\u1ee5c \u201c3) Th\u1eddi gian duy tr\u00ec t\u1ea3i tr\u1ecdng\u201d c\u00f3 ghi nh\u01b0 sau:<\/p>\n<p><strong>\u201cT\u00f9y thu\u1ed9c v\u00e0o k\u1ebft qu\u1ea3 th\u1eed nghi\u1ec7m k\u00e9o trong th\u1eed nghi\u1ec7m c\u01a1 b\u1ea3n, th\u1eddi gian duy tr\u00ec t\u1ea3i tr\u1ecdng trong th\u1eed nghi\u1ec7m c\u00f3 th\u1ec3 \u0111\u01b0\u1ee3c r\u00fat ng\u1eafn so v\u1edbi gi\u00e1 tr\u1ecb n\u00eau t\u1ea1i B\u1ea3ng Ph\u1ee5 l\u1ee5c 8.6.\u201d<\/strong><\/p>\n<p><img decoding=\"async\" style=\"font-size: 16px;\" src=\"https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2017\/10\/977477dd19d73d5e0fc2764ebb7a3ff9.jpg\" alt=\"N\u1ed9i dung trong t\u00e0i li\u1ec7u ti\u00eau chu\u1ea9n v\u1ec1 quy \u0111\u1ecbnh t\u1ea3i tr\u1ecdng t\u1ed1i \u0111a theo thi\u1ebft k\u1ebf\" \/><\/p>\n<p>N\u00f3i c\u00e1ch kh\u00e1c, n\u1ebfu \u0111\u00e3 ti\u1ebfn h\u00e0nh th\u1eed nghi\u1ec7m r\u00fat c\u1ecdc tr\u01b0\u1edbc \u0111\u00f3 v\u00e0 n\u1eafm r\u00f5 \u0111\u01b0\u1ee3c h\u00e0nh vi c\u1ee7a n\u1ec1n \u0111\u1ea5t, th\u00ec,<strong>Th\u1eddi gian l\u00e0m b\u00e0i thi \u0111\u00e1nh gi\u00e1 n\u0103ng l\u1ef1c c\u00f3 th\u1ec3 ng\u1eafn h\u01a1n so v\u1edbi b\u1ea3ng ti\u00eau chu\u1ea9n<\/strong>V\u00e0 \u0111i\u1ec1u n\u00e0y \u0111\u00e3 \u0111\u01b0\u1ee3c c\u00f4ng nh\u1eadn trong t\u00e0i li\u1ec7u h\u01b0\u1edbng d\u1eabn.<\/p>\n<p>Th\u1ef1c t\u1ebf c\u00f3 r\u1ea5t nhi\u1ec1u n\u01a1i coi c\u00e1c ph\u00e2n s\u1ed1 \u1edf b\u1ea3ng tr\u00ean nh\u01b0 m\u1ed9t \u201ckinh th\u00e1nh\u201d, kh\u00f4ng cho ph\u00e9p thay \u0111\u1ed5i d\u00f9 ch\u1ec9 m\u1ed9t gi\u00e2y, m\u00e0 kh\u00f4ng h\u1ec1 bi\u1ebft \u0111\u1ebfn ph\u1ea7n n\u00e0y.<\/p>\n<p>H\u1ed3i x\u01b0a t\u1edb c\u0169ng t\u1eebng ngh\u0129 nh\u01b0 v\u1eady w<\/p>\n<h2>C\u1ee5 th\u1ec3 s\u1ebd r\u00fat ng\u1eafn \u0111\u01b0\u1ee3c bao nhi\u00eau ph\u00fat \u1edf \u0111\u00e2u? | 4 \u0111i\u1ec3m gi\u00fap r\u00fat ng\u1eafn th\u1eddi gian<span style=\"font-size: 16px;\">\u30c8<\/span><\/h2>\n<p>Gi\u1ea3 s\u1eed \u0111\u00e3 hi\u1ec3u v\u1ec1 l\u00fd thuy\u1ebft, v\u1eady th\u00ec tr\u00ean th\u1ef1c t\u1ebf, ph\u1ea7n n\u00e0o s\u1ebd \u0111\u01b0\u1ee3c r\u00fat ng\u1eafn v\u00e0 r\u00fat ng\u1eafn bao nhi\u00eau? T\u00f4i s\u1ebd tr\u00ecnh b\u00e0y theo th\u1ee9 t\u1ef1 m\u00e0 t\u00f4i \u0111ang th\u1ef1c hi\u1ec7n t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng.<\/p>\n<h3>\u0110i\u1ec3m 1\uff5cTh\u1eddi gian t\u1ea3i tr\u1ecdng trong qu\u00e1 tr\u00ecnh ghi l\u1ecbch s\u1eed ch\u1ec9 c\u1ea7n t\u1eeb 1 \u0111\u1ebfn 2 ph\u00fat l\u00e0 \u0111\u1ee7 (\u0111\u00e2y l\u00e0 \u0111i\u1ec3m quan tr\u1ecdng nh\u1ea5t)<\/h3>\n<p>Th\u1eed nghi\u1ec7m kh\u1ea3 n\u0103ng ch\u1ecbu t\u1ea3i \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n theo nhi\u1ec1u chu k\u1ef3. 0,4Td \u2192 gi\u1ea3m t\u1ea3i \u2192 0,6Td \u2192 gi\u1ea3m t\u1ea3i \u2192\u2026, v\u00e0 nh\u1ea5t \u0111\u1ecbnh<strong>V\u01b0\u1ee3t qua giai \u0111o\u1ea1n t\u1ea3i tr\u1ecdng \u0111\u00e3 tr\u1ea3i qua trong chu k\u1ef3 tr\u01b0\u1edbc<\/strong>S\u1ebd l\u00e0m.<\/p>\n<p>Trong B\u1ea3ng gi\u1ea3i th\u00edch 8.1, th\u1eddi gian duy tr\u00ec \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i th\u00e0nh \u201ct\u1ea3i tr\u1ecdng m\u1edbi\u201d v\u00e0 \u201ct\u1ea3i tr\u1ecdng trong l\u1ecbch s\u1eed\u201d, v\u00e0<strong>Th\u1eddi gian duy tr\u00ec t\u1ea3i tr\u1ecdng trong qu\u00e1 tr\u00ecnh th\u1eed nghi\u1ec7m l\u00e0 t\u1eeb 1 \u0111\u1ebfn 2 ph\u00fat<\/strong>\u0111\u01b0\u1ee3c cho l\u00e0 nh\u01b0 v\u1eady.<\/p>\n<p>Ch\u1ec9 l\u00e0 \u0111o\u1ea1n \u0111\u01b0\u1eddng \u0111i qua l\u1ea1i v\u00f9ng t\u1ea3i tr\u1ecdng \u0111\u00e3 t\u1eebng tr\u1ea3i qua m\u1ed9t l\u1ea7n,<strong>Kh\u00f4ng c\u1ea7n ph\u1ea3i d\u1eebng l\u1ea1i trong c\u00f9ng kho\u1ea3ng th\u1eddi gian nh\u01b0 khi c\u00f3 t\u1ea3i m\u1edbi<\/strong>\u0110\u00f3 l\u00e0 \u00fd c\u1ee7a t\u00f4i.<\/p>\n<p>V\u1edbi b\u00e0i ki\u1ec3m tra n\u0103ng l\u1ef1c g\u1ed3m 5 v\u00f2ng, s\u1ed1 l\u1ea7n v\u01b0\u1ee3t qua c\u00e1c v\u00f2ng trong qu\u00e1 tr\u00ecnh tuy\u1ec3n d\u1ee5ng s\u1ebd kh\u00e1 nhi\u1ec1u.<\/p>\n<p>T\u00f9y thu\u1ed9c v\u00e0o vi\u1ec7c m\u1ed7i l\u1ea7n d\u1eebng l\u1ea1i \u1edf \u0111\u00e2y 15 ph\u00fat hay ch\u1ec9 \u0111i qua trong 2 ph\u00fat, th\u1eddi gian b\u1ecb gi\u1eef l\u1ea1i cho m\u1ed7i chuy\u1ebfn s\u1ebd ho\u00e0n to\u00e0n kh\u00e1c nhau.<\/p>\n<p>N\u00f3i m\u1ed9t c\u00e1ch \u0111\u01a1n gi\u1ea3n, ch\u1ec9 c\u1ea7n c\u1ea9n th\u1eadn khi c\u00f3 t\u1ea3i tr\u1ecdng m\u1edbi trong l\u00fac leo d\u1ed1c, c\u00f2n khi xu\u1ed1ng d\u1ed1c th\u00ec c\u1ee9 lao xu\u1ed1ng th\u1ea3 ga.<\/p>\n<h3>\u0110i\u1ec3m 2\uff5cKi\u1ec3m tra c\u00e0i \u0111\u1eb7t c\u1ea5p b\u1eadc tr\u01b0\u1edbc ti\u00ean<\/h3>\n<p>Khi xem ph\u01b0\u01a1ng ph\u00e1p t\u1ea3i tr\u1ecdng trong b\u00e0i ki\u1ec3m tra kh\u1ea3 n\u0103ng (B\u1ea3ng Ph\u1ee5 l\u1ee5c 8.6), c\u00f3 th\u1ec3 th\u1ea5y th\u1eddi gian \u0111o t\u1ed1i thi\u1ec3u \u1edf h\u1ea1ng A v\u00e0 h\u1ea1ng B ho\u00e0n to\u00e0n kh\u00e1c nhau.<\/p>\n<table>\n<thead>\n<tr>\n<th>Chu k\u1ef3<\/th>\n<th>T\u1ea3i tr\u1ecdng th\u1eed nghi\u1ec7m \u2013 C\u1ea5p B<\/th>\n<th>T\u1ea3i tr\u1ecdng th\u1eed nghi\u1ec7m H\u1ea1ng A<\/th>\n<th>Th\u1eddi gian \u0111o t\u1ed1i thi\u1ec3u: H\u1ea1ng B (\u0111\u1ea5t c\u00e1t, n\u1ec1n \u0111\u00e1 \/ \u0111\u1ea5t d\u00ednh)<\/th>\n<th>Th\u1eddi gian \u0111o t\u1ed1i thi\u1ec3u \u2013 H\u1ea1ng A (\u0111\u1ea5t c\u00e1t, n\u1ec1n \u0111\u00e1 \/ \u0111\u1ea5t d\u00ednh)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>1<\/td>\n<td>0,40 Td<\/td>\n<td>0,40 Td<\/td>\n<td>1 ph\u00fat \/ 1 ph\u00fat<\/td>\n<td>15 ph\u00fat \/ 15 ph\u00fat<\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>0,60 Td<\/td>\n<td>0,60 Td<\/td>\n<td>1 ph\u00fat \/ 1 ph\u00fat<\/td>\n<td>15 ph\u00fat \/ 15 ph\u00fat<\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td>0,80 Td<\/td>\n<td>0,80 Td<\/td>\n<td>5 ph\u00fat \/ 5 ph\u00fat<\/td>\n<td>30 ph\u00fat \/ 60 ph\u00fat<\/td>\n<\/tr>\n<tr>\n<td>4<\/td>\n<td>1,00 Td<\/td>\n<td>1,00 Td<\/td>\n<td>5 ph\u00fat \/ 5 ph\u00fat<\/td>\n<td>30 ph\u00fat \/ 60 ph\u00fat<\/td>\n<\/tr>\n<tr>\n<td>5<\/td>\n<td>1,10 Td<\/td>\n<td>1,25 Td<\/td>\n<td>30 ph\u00fat \/ 60 ph\u00fat<\/td>\n<td>60 ph\u00fat \/ 180 ph\u00fat<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Ti\u00eau chu\u1ea9n thi\u1ebft k\u1ebf v\u00e0 thi c\u00f4ng neo \u0111\u1ea5t, ph\u1ea7n gi\u1ea3i th\u00edch k\u00e8m theo \u2013 B\u1ea3ng ph\u1ee5 l\u1ee5c 8.6 (Ph\u01b0\u01a1ng ph\u00e1p t\u1ea3i tr\u1ecdng trong th\u1eed nghi\u1ec7m t\u00ednh ph\u00f9 h\u1ee3p)<\/p>\n<p>\u0110\u1ed1i v\u1edbi \u0111\u1ea5t c\u00e1t v\u00e0 n\u1ec1n \u0111\u00e1 thu\u1ed9c h\u1ea1ng B th\u00ec t\u1ed5ng c\u1ed9ng l\u00e0 42 ph\u00fat, c\u00f2n \u0111\u1ed1i v\u1edbi h\u1ea1ng A th\u00ec t\u1ed5ng c\u1ed9ng l\u00e0 150 ph\u00fat.<\/p>\n<p><strong>Ch\u00eanh l\u1ec7ch g\u1ea5p 3 l\u1ea7n tr\u1edf l\u00ean<\/strong>\u0110\u00fang v\u1eady. Ri\u00eang \u0111\u1ed1i v\u1edbi \u0111\u1ea5t d\u00ednh lo\u1ea1i A, ch\u1ec9 ri\u00eang chu k\u1ef3 cu\u1ed1i c\u00f9ng \u0111\u00e3 m\u1ea5t t\u1edbi 180 ph\u00fat, t\u1ee9c l\u00e0 tr\u00f2n 3 gi\u1edd.<\/p>\n<p>V\u00ec c\u1ea5p \u0111\u1ed9 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh d\u1ef1a tr\u00ean ph\u00e2n lo\u1ea1i theo th\u1eddi gian s\u1eed d\u1ee5ng v\u00e0 m\u1ee9c \u0111\u1ed9 quan tr\u1ecdng c\u1ee7a c\u00f4ng tr\u00ecnh (B\u1ea3ng gi\u1ea3i th\u00edch 6.1), n\u00ean,<strong>\u0110\u00e2y kh\u00f4ng ph\u1ea3i l\u00e0 th\u1ee9 m\u00e0 nh\u00e2n vi\u00ean t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng c\u00f3 th\u1ec3 t\u1ef1 \u00fd lo\u1ea1i b\u1ecf<\/strong>\u3002<\/p>\n<p>Tuy nhi\u00ean, vi\u1ec7c li\u1ec7u h\u1ea1ng A c\u00f3 ph\u00f9 h\u1ee3p hay kh\u00f4ng ngay t\u1eeb giai \u0111o\u1ea1n thi\u1ebft k\u1ebf l\u00e0 m\u1ed9t v\u1ea5n \u0111\u1ec1 ho\u00e0n to\u00e0n \u0111\u00e1ng \u0111\u1ec3 ch\u1ee7 \u0111\u1ea7u t\u01b0 v\u00e0 nh\u00e0 thi\u1ebft k\u1ebf th\u1ea3o lu\u1eadn k\u1ef9 l\u01b0\u1ee1ng tr\u01b0\u1edbc khi kh\u1edfi c\u00f4ng.<\/p>\n<p><img decoding=\"async\" style=\"font-size: 16px;\" src=\"https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2017\/10\/dd675e3d4981faabcf4861c50a92728b.jpg\" alt=\"JGS4101-2012: M\u00f4 t\u1ea3 v\u1ec1 ph\u01b0\u01a1ng ph\u00e1p t\u1ea3i tr\u1ecdng trong th\u1eed nghi\u1ec7m kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ef1c\" \/><\/p>\n<p>T\u00f4i \u0111\u00e3 li\u1ec7t k\u00ea nh\u1eefng \u0111i\u1ec3m n\u00e0y \u1edf \u0111\u00e2y v\u1edbi \u00fd ngh\u0129a l\u00e0 nh\u1eefng \u0111i\u1ec1u c\u1ea7n ki\u1ec3m tra tr\u01b0\u1edbc khi tr\u00ecnh k\u1ebf ho\u1ea1ch thi.<\/p>\n<p>D\u00f9 n\u00f3i v\u1eady, nh\u01b0ng ngay c\u1ea3 c\u01a1 quan h\u00e0nh ch\u00ednh c\u0169ng ch\u1eb3ng hi\u1ec3u g\u00ec khi nh\u00ecn con s\u1ed1 n\u00e0y, n\u00ean m\u1ecdi th\u1ee9 c\u1ee9 th\u1ebf tr\u00f4i qua m\u1ed9t c\u00e1ch nh\u1eb9 nh\u00e0ng (c\u01b0\u1eddi)<\/p>\n<h3>\u0110i\u1ec3m 3\uff5cT\u1ea3i tr\u1ecdng t\u1ed1i \u0111a theo thi\u1ebft k\u1ebf l\u00e0 \u201cgi\u00e1 tr\u1ecb gi\u1edbi h\u1ea1n tr\u00ean\u201d, do \u0111\u00f3 c\u00f3 th\u1ec3 gi\u1ea3m xu\u1ed1ng<\/h3>\n<p>T\u1ea3i tr\u1ecdng t\u1ed1i \u0111a trong k\u1ebf ho\u1ea1ch ki\u1ec3m tra kh\u1ea3 n\u0103ng ph\u00f9 h\u1ee3p v\u00e0 ki\u1ec3m tra x\u00e1c nh\u1eadn l\u00e0,<\/p>\n<p><strong>H\u1ea1ng A: L\u1ef1c neo thi\u1ebft k\u1ebf (Td) \u00d7 1,25<\/strong><br \/>\n<strong>H\u1ea1ng B: L\u1ef1c neo thi\u1ebft k\u1ebf (Td) \u00d7 1,10<\/strong><\/p>\n<p>\u0111\u01b0\u1ee3c quy \u0111\u1ecbnh nh\u01b0 sau.<\/p>\n<p>V\u00e0 trong Ph\u1ee5 l\u1ee5c 8-4 c\u00f3,<strong>\u201cT\u1ea3i tr\u1ecdng t\u1ed1i \u0111a theo k\u1ebf ho\u1ea1ch \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh trong ti\u00eau chu\u1ea9n l\u00e0 gi\u00e1 tr\u1ecb gi\u1edbi h\u1ea1n tr\u00ean; do vi\u1ec7c th\u1eed nghi\u1ec7m \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n b\u1eb1ng c\u00e1ch s\u1eed d\u1ee5ng c\u00e1c neo th\u1ef1c t\u1ebf s\u1ebd \u0111\u01b0\u1ee3c \u0111\u01b0a v\u00e0o s\u1eed d\u1ee5ng, n\u00ean c\u00f3 th\u1ec3 x\u00e1c \u0111\u1ecbnh m\u1ee9c t\u1ea3i tr\u1ecdng th\u1ea5p h\u01a1n gi\u00e1 tr\u1ecb n\u00e0y d\u1ef1a tr\u00ean \u0111\u00e1nh gi\u00e1 c\u1ee7a k\u1ef9 s\u01b0 ch\u1ecbu tr\u00e1ch nhi\u1ec7m, ph\u00f9 h\u1ee3p v\u1edbi th\u1ef1c t\u1ebf t\u1ea1i c\u00f4ng tr\u01b0\u1eddng.\u201d<\/strong>\u0111\u01b0\u1ee3c n\u00eau r\u00f5 nh\u01b0 v\u1eady.<\/p>\n<p>T\u00f4i th\u01b0\u1eddng \u0111\u00e1nh gi\u00e1 d\u1ef1a tr\u00ean t\u00ecnh tr\u1ea1ng c\u1ee7a n\u00fai v\u00e0 \u0111i\u1ec1u ki\u1ec7n t\u1ea1i th\u1eddi \u0111i\u1ec3m khoan, nh\u01b0ng t\u1ea1i nhi\u1ec1u c\u00f4ng tr\u01b0\u1eddng,<strong>1,20 l\u1ea7n<\/strong>\u0111ang \u0111\u01b0\u1ee3c \u00e1p d\u1ee5ng.<\/p>\n<p>L\u00fd do r\u1ea5t \u0111\u01a1n gi\u1ea3n: t\u1ea1i sao l\u1ea1i ph\u1ea3i c\u1ed1 t\u00ecnh ti\u1ebfp t\u1ee5c k\u00e9o m\u1ed9t v\u1eadt m\u00e0 ta \u0111\u00e3 bi\u1ebft ch\u1eafc ch\u1eafn l\u00e0 s\u1ebd kh\u00f4ng b\u1ecb tu\u1ed9t ra d\u01b0\u1edbi t\u1ea3i tr\u1ecdng c\u1ed1 \u0111\u1ecbnh b\u1eb1ng m\u1ed9t l\u1ef1c l\u1edbn h\u01a1n m\u1ee9c \u0111\u00f3?<\/p>\n<p>Ti\u00eau ch\u00ed \u0111\u00e1nh gi\u00e1 t\u00ednh ph\u00f9 h\u1ee3p d\u1ef1a tr\u00ean quan \u0111i\u1ec3m r\u1eb1ng: \u201cT\u1ea3i tr\u1ecdng t\u1ed1i \u0111a theo k\u1ebf ho\u1ea1ch \u0111\u01b0\u1ee3c thi\u1ebft l\u1eadp l\u1edbn h\u01a1n l\u1ef1c neo thi\u1ebft k\u1ebf; n\u1ebfu c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c t\u1ea3i tr\u1ecdng n\u00e0y, th\u00ec thi\u1ebft k\u1ebf v\u00e0 thi c\u00f4ng s\u1ebd \u0111\u01b0\u1ee3c \u0111\u00e1nh gi\u00e1 l\u00e0 ph\u00f9 h\u1ee3p\u201d.<\/p>\n<p>Tuy nhi\u00ean, tr\u00ean th\u1ef1c t\u1ebf v\u1eabn c\u00f3 nh\u1eefng tr\u01b0\u1eddng h\u1ee3p ph\u1ea3i ch\u1ecbu t\u1ea3i tr\u1ecdng l\u1edbn trong th\u1eddi gian ng\u1eafn (t\u1ee9c th\u1eddi) nh\u01b0 khi x\u1ea3y ra \u0111\u1ed9ng \u0111\u1ea5t, v\u00ec v\u1eady v\u1ea5n \u0111\u1ec1 l\u00e0 c\u1ea7n ph\u1ea3i t\u00ednh to\u00e1n k\u1ef9 l\u01b0\u1ee1ng m\u1ee9c d\u1ef1 ph\u00f2ng v\u00e0 x\u00e1c \u0111\u1ecbnh gi\u1edbi h\u1ea1n tr\u00ean \u1edf m\u1ee9c n\u00e0o.<\/p>\n<h3>\u0110i\u1ec3m 4\uff5cThu h\u1eb9p v\u1ec1 m\u1eb7t v\u1eadt l\u00fd\uff5cS\u1eed d\u1ee5ng 2 chi\u1ebfc k\u00edch<\/h3>\n<p>T\u1eeb \u0111\u00e2y tr\u1edf \u0111i, ch\u00fang ta s\u1ebd kh\u00f4ng n\u00f3i v\u1ec1 t\u00e0i li\u1ec7u h\u01b0\u1edbng d\u1eabn n\u1eefa, m\u00e0 ho\u00e0n to\u00e0n l\u00e0 v\u1ec1 vi\u1ec7c s\u1eafp x\u1ebfp c\u00f4ng vi\u1ec7c t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng.<\/p>\n<p>B\u1ea3n th\u00e2n c\u00f4ng vi\u1ec7c c\u1ee7ng c\u1ed1 s\u1ef1 c\u0103ng th\u1eb3ng l\u00e0,<strong>T\u0103ng s\u1ed1 l\u01b0\u1ee3ng k\u00edch l\u00ean 2 chi\u1ebfc<\/strong>C\u00e1ch n\u00e0y d\u1ec5 hi\u1ec3u v\u00e0 hi\u1ec7u qu\u1ea3 nh\u1ea5t.<\/p>\n<p>D\u00f9 kh\u00f4ng th\u1ec3 r\u00fat ng\u1eafn th\u1eddi gian \u0111o l\u01b0\u1eddng tr\u00ean m\u00e1y th\u1eed nghi\u1ec7m, nh\u01b0ng do c\u00f3 th\u1ec3 ti\u1ebfn h\u00e0nh song song c\u00e1c c\u00f4ng \u0111o\u1ea1n l\u1eafp \u0111\u1eb7t, thay m\u1eabu v\u00e0 th\u00e1o d\u1ee1 tr\u01b0\u1edbc v\u00e0 sau \u0111\u00f3, n\u00ean s\u1ed1 l\u01b0\u1ee3ng m\u1eabu th\u1eed m\u1ed7i ng\u00e0y s\u1ebd t\u0103ng l\u00ean \u0111\u00e1ng k\u1ec3.<\/p>\n<p>T\u1ea5t nhi\u00ean, vi\u1ec7c n\u00e0y \u0111\u00f2i h\u1ecfi ph\u1ea3i c\u00f3 \u0111\u1ee7 nh\u00e2n l\u1ef1c v\u00e0 s\u1ef1 ph\u1ed1i h\u1ee3p t\u1eeb ph\u00eda l\u1ef1c ph\u1ea3n, \u0111\u1ed3ng th\u1eddi c\u0169ng c\u00f3 nhi\u1ec1u c\u00f4ng tr\u01b0\u1eddng m\u00e0 vi\u1ec7c s\u1eed d\u1ee5ng hai m\u00e1y tr\u00ean m\u1eb7t d\u1ed1c h\u1eb9p l\u00e0 kh\u00f4ng th\u1ec3 th\u1ef1c hi\u1ec7n \u0111\u01b0\u1ee3c.<\/p>\n<p>Thay v\u00ec ch\u1ec9 \u201cc\u1eaft gi\u1ea3m th\u1eddi gian \u0111o l\u01b0\u1eddng\u201d, vi\u1ec7c \u201cc\u1eaft gi\u1ea3m th\u1eddi gian ch\u1edd \u0111\u1ee3i\u201d tr\u01b0\u1edbc ti\u00ean s\u1ebd mang l\u1ea1i hi\u1ec7u qu\u1ea3 m\u00e0 kh\u00f4ng c\u00f3 r\u1ee7i ro n\u00e0o.<\/p>\n<p>N\u1ebfu b\u1ea1n mu\u1ed1n ti\u1ebft ki\u1ec7m th\u1eddi gian th\u1ef1c, h\u00e3y nh\u1edb r\u1eb1ng c\u0169ng c\u00f3 c\u00e1ch l\u00e0m nh\u01b0 v\u1eady.<\/p>\n<h2>Ng\u01b0\u1ee3c l\u1ea1i, nh\u1eefng ch\u1ed7 tuy\u1ec7t \u0111\u1ed1i kh\u00f4ng \u0111\u01b0\u1ee3c thu ng\u1eafn<\/h2>\n<p>Cho \u0111\u1ebfn nay, ch\u00fang ta \u0111\u00e3 b\u00e0n v\u1ec1 vi\u1ec7c r\u00fat g\u1ecdn n\u1ed9i dung, nh\u01b0ng c\u0169ng c\u00f3 nh\u1eefng ranh gi\u1edbi nh\u1ea5t \u0111\u1ecbnh kh\u00f4ng \u0111\u01b0\u1ee3c ph\u00e9p c\u1eaft b\u1ecf. N\u1ebfu b\u1ecf qua nh\u1eefng ph\u1ea7n n\u00e0y, b\u00e0i thi s\u1ebd kh\u00f4ng c\u00f2n l\u00e0 b\u00e0i thi n\u1eefa.<\/p>\n<h3>N\u1ebfu \u0111\u1ed9 d\u1ecbch chuy\u1ec3n v\u01b0\u1ee3t qu\u00e1 0,5 mm th\u00ec ch\u1ec9 c\u00f2n c\u00e1ch \u201ck\u00e9o d\u00e0i\u201d m\u00e0 th\u00f4i<\/h3>\n<p>Trong vi\u1ec7c \u0111\u00e1nh gi\u00e1 k\u1ebft qu\u1ea3 th\u1eed nghi\u1ec7m kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ef1c, n\u1ebfu t\u1ea1i t\u1ea3i tr\u1ecdng th\u1eed nghi\u1ec7m t\u1ed1i \u0111a, \u0111\u1ed9 d\u1ecbch chuy\u1ec3n v\u01b0\u1ee3t qu\u00e1 0,5 mm trong kho\u1ea3ng th\u1eddi gian quy \u0111\u1ecbnh t\u1ea1i B\u1ea3ng Ph\u1ee5 l\u1ee5c 8.7, th\u00ec,<strong>K\u00e9o d\u00e0i th\u1eddi gian thi trong B\u1ea3ng ph\u1ee5 l\u1ee5c 8.6<\/strong>\u0111\u01b0\u1ee3c quy \u0111\u1ecbnh nh\u01b0 sau.<\/p>\n<table>\n<thead>\n<tr>\n<th>X\u1ebfp h\u1ea1ng<\/th>\n<th>\u0110\u1ecba ch\u1ea5t<\/th>\n<th>Th\u1eddi gian \u0111\u00e3 tr\u00f4i qua<\/th>\n<th>\u0110\u1ed9 d\u1ecbch chuy\u1ec3n<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>A<\/td>\n<td>\u0110\u1ea5t c\u00e1t v\u00e0 n\u1ec1n \u0111\u00e1<\/td>\n<td>20\u201360 ph\u00fat<\/td>\n<td>0,5 mm<\/td>\n<\/tr>\n<tr>\n<td>A<\/td>\n<td>\u0110\u1ea5t d\u00ednh<\/td>\n<td>60\u2013180 ph\u00fat<\/td>\n<td>0,5 mm<\/td>\n<\/tr>\n<tr>\n<td>B<\/td>\n<td>\u0110\u1ea5t c\u00e1t v\u00e0 n\u1ec1n \u0111\u00e1<\/td>\n<td>10\u201330 ph\u00fat<\/td>\n<td>0,5 mm<\/td>\n<\/tr>\n<tr>\n<td>B<\/td>\n<td>\u0110\u1ea5t d\u00ednh<\/td>\n<td>20\u201360 ph\u00fat<\/td>\n<td>0,5 mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Ti\u00eau chu\u1ea9n thi\u1ebft k\u1ebf v\u00e0 thi c\u00f4ng neo \u0111\u1ea5t, c\u00f9ng ph\u1ea7n gi\u1ea3i th\u00edch \u2013 B\u1ea3ng ph\u1ee5 l\u1ee5c 8.7 (M\u1ee9c tham chi\u1ebfu v\u1ec1 vi\u1ec7c gia h\u1ea1n th\u1eddi gian th\u1eed nghi\u1ec7m)<\/p>\n<p>Th\u1eddi gian th\u1eed nghi\u1ec7m t\u1ed1i \u0111a trong tr\u01b0\u1eddng h\u1ee3p gia h\u1ea1n \u0111\u01b0\u1ee3c quy \u0111\u1ecbnh nh\u01b0 sau: \u0111\u1ed1i v\u1edbi h\u1ea1ng A l\u00e0 t\u1eeb 120 ph\u00fat tr\u1edf l\u00ean \u0111\u1ed1i v\u1edbi \u0111\u1ea5t c\u00e1t v\u00e0 n\u1ec1n \u0111\u00e1 \/ t\u1eeb 360 ph\u00fat tr\u1edf l\u00ean \u0111\u1ed1i v\u1edbi \u0111\u1ea5t d\u1ebbo; \u0111\u1ed1i v\u1edbi h\u1ea1ng B l\u00e0 t\u1eeb 60 ph\u00fat tr\u1edf l\u00ean \u0111\u1ed1i v\u1edbi \u0111\u1ea5t c\u00e1t v\u00e0 n\u1ec1n \u0111\u00e1 \/ t\u1eeb 120 ph\u00fat tr\u1edf l\u00ean \u0111\u1ed1i v\u1edbi \u0111\u1ea5t d\u1ebbo, v\u00e0<\/p>\n<p>L\u00fac \u0111\u00f3,<strong>H\u1ec7 s\u1ed1 tr\u01b0\u1ee3t \u03b1 kh\u00f4ng qu\u00e1 2,0 mm<\/strong>\u201cN\u1ebfu nh\u01b0 v\u1eady th\u00ec t\u1ed1t\u201d \u2013 \u0111\u00f3 l\u00e0 k\u1ebft lu\u1eadn trong B\u1ea3ng ph\u1ee5 l\u1ee5c 8.8.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-66668\" src=\"https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2026\/08\/cb54db5b11e828b4f300081db590159a.jpg\" alt=\"X\u00e1c \u0111\u1ecbnh h\u1ec7 s\u1ed1 tr\u01b0\u1ee3t\" width=\"600\" height=\"338\" \/><\/p>\n<p>H\u1ec7 s\u1ed1 tr\u01b0\u1ee3t \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a theo c\u00f4ng th\u1ee9c sau \u0111\u00e2y.<\/p>\n<p>\u03b1 = (Sb \u2013 Sa) \u00f7 log(tb\/ta)<\/p>\n<p>Sa v\u00e0 Sb l\u00e0 \u0111\u1ed9 d\u1ecbch chuy\u1ec3n c\u1ee7a \u0111\u1ea7u neo (mm) t\u1ea1i c\u00e1c th\u1eddi \u0111i\u1ec3m ta v\u00e0 tb.<\/p>\n<p>N\u00f3i c\u00e1ch kh\u00e1c, vi\u1ec7c \u201cch\u1ec9 r\u00fat ng\u1eafn th\u1eddi gian m\u00e0 kh\u00f4ng \u0111\u1ea3m b\u1ea3o s\u1ef1 \u1ed5n \u0111\u1ecbnh\u201d l\u00e0 kh\u00f4ng \u0111\u01b0\u1ee3c,<strong>Khi t\u00ecnh h\u00ecnh ch\u01b0a \u1ed5n \u0111\u1ecbnh, h\u00e3y c\u1ee9 k\u00e9o d\u00e0i th\u1eddi gian th\u00eam n\u1eefa<\/strong>\u0110\u00f3 l\u00e0 c\u00e2u tr\u1ea3 l\u1eddi \u0111\u00fang.<\/p>\n<p>T\u00f4i cho r\u1eb1ng c\u00e1ch ti\u1ebfp c\u1eadn h\u1ee3p l\u00fd l\u00e0 l\u1ea5y kho\u1ea3ng 30 ph\u00fat l\u00e0m th\u1eddi gian ti\u00eau chu\u1ea9n, v\u00e0 c\u00f3 th\u1ec3 k\u00e9o d\u00e0i n\u1ebfu c\u1ea7n thi\u1ebft.<\/p>\n<p>Th\u1ef1c ra, n\u1ebfu chuy\u1ec3n \u0111\u1ed9ng d\u1eebng h\u1eb3n l\u1ea1i th\u00ec sau \u0111\u00f3 s\u1ebd kh\u00f4ng c\u00f2n nhi\u1ec1u bi\u1ebfn \u0111\u1ed9ng n\u1eefa, n\u00ean ch\u1ec9 c\u1ea7n r\u00fat ng\u1eafn \u0111o\u1ea1n \u0111\u00f3 l\u00e0 \u0111\u01b0\u1ee3c.<\/p>\n<h3>Vi\u1ec7c \u0111\u00e1nh gi\u00e1 k\u1ebft qu\u1ea3 ki\u1ec3m tra x\u00e1c nh\u1eadn \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n theo t\u1eebng ph\u00fat v\u00e0 r\u1ea5t nghi\u00eam ng\u1eb7t<\/h3>\n<p>Xem t\u1ea1i \u0111\u00e2y \u0111\u1ec3 bi\u1ebft ph\u01b0\u01a1ng ph\u00e1p t\u1ea3i tr\u1ecdng v\u00e0 ti\u00eau ch\u00ed \u0111\u00e1nh gi\u00e1 c\u1ee7a th\u1eed nghi\u1ec7m x\u00e1c nh\u1eadn (1 chu k\u1ef3).<\/p>\n<table>\n<thead>\n<tr>\n<th>Chu k\u1ef3<\/th>\n<th>T\u1ea3i tr\u1ecdng th\u1eed nghi\u1ec7m \u2013 C\u1ea5p B<\/th>\n<th>T\u1ea3i tr\u1ecdng th\u1eed nghi\u1ec7m H\u1ea1ng A<\/th>\n<th>Th\u1eddi gian \u0111o t\u1ed1i thi\u1ec3u (\u0111\u1ea5t c\u00e1t, n\u1ec1n \u0111\u00e1)<\/th>\n<th>Th\u1eddi gian \u0111o t\u1ed1i thi\u1ec3u (\u0111\u1ea5t d\u00ednh)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>1<\/td>\n<td>0,40 Td<\/td>\n<td>0,40 Td<\/td>\n<td>1 ph\u00fat<\/td>\n<td>1 ph\u00fat<\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>0,60 Td<\/td>\n<td>0,60 Td<\/td>\n<td>1 ph\u00fat<\/td>\n<td>1 ph\u00fat<\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td>0,80 Td<\/td>\n<td>0,80 Td<\/td>\n<td>1 ph\u00fat<\/td>\n<td>1 ph\u00fat<\/td>\n<\/tr>\n<tr>\n<td>4<\/td>\n<td>1,00 Td<\/td>\n<td>1,00 Td<\/td>\n<td>1 ph\u00fat<\/td>\n<td>1 ph\u00fat<\/td>\n<\/tr>\n<tr>\n<td>5<\/td>\n<td>1,10 Td<\/td>\n<td>1,25 Td<\/td>\n<td>5 ph\u00fat<\/td>\n<td>15 ph\u00fat<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Ti\u00eau chu\u1ea9n thi\u1ebft k\u1ebf v\u00e0 thi c\u00f4ng neo \u0111\u1ea5t, c\u00f9ng ph\u1ea7n gi\u1ea3i th\u00edch \u2013 B\u1ea3ng ph\u1ee5 l\u1ee5c 8.9 (Ph\u01b0\u01a1ng ph\u00e1p t\u1ea3i tr\u1ecdng trong th\u1eed nghi\u1ec7m x\u00e1c nh\u1eadn)<\/p>\n<p>Vi\u1ec7c \u0111\u00e1nh gi\u00e1 s\u1ebd \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n n\u1ebfu l\u00e0 \u0111\u1ea5t c\u00e1t ho\u1eb7c n\u1ec1n \u0111\u00e1 th\u00ec<strong>S\u1ef1 d\u1ecbch chuy\u1ec3n trong kho\u1ea3ng t\u1eeb 2 \u0111\u1ebfn 5 ph\u00fat kh\u00f4ng v\u01b0\u1ee3t qu\u00e1 0,2 mm<\/strong>, n\u1ebfu l\u00e0 \u0111\u1ea5t d\u00ednh th\u00ec<strong>\u0110\u1ed9 d\u1ecbch chuy\u1ec3n trong kho\u1ea3ng t\u1eeb 5 \u0111\u1ebfn 15 ph\u00fat kh\u00f4ng v\u01b0\u1ee3t qu\u00e1 0,25 mm<\/strong>V\u00e0, h\u1ec7 s\u1ed1 tr\u01b0\u1ee3t kh\u00f4ng qu\u00e1 2,0 mm (B\u1ea3ng Ph\u1ee5 l\u1ee5c 8.10).<\/p>\n<p>Nh\u01b0 c\u00e1c b\u1ea1n \u0111\u00e3 th\u1ea5y \u0111\u1ebfn \u0111\u00e2y, b\u00e0i ki\u1ec3m tra x\u00e1c nh\u1eadn l\u00e0<strong>M\u1ed9t k\u1ef3 thi v\u1ed1n \u0111\u00e3 kh\u00e1 ng\u1eafn<\/strong>\u0110\u00f3 l\u00e0.<\/p>\n<p>V\u00ec \u0111\u00e2y l\u00e0 k\u1ef3 thi ki\u1ec3m tra to\u00e0n b\u1ed9 s\u1ed1 l\u01b0\u1ee3ng n\u00ean h\u1ea7u nh\u01b0 kh\u00f4ng c\u00f2n ch\u1ed7 \u0111\u1ec3 c\u1eaft gi\u1ea3m th\u00eam n\u1eefa.<\/p>\n<p>N\u1ebfu vi\u1ec7c ki\u1ec3m tra x\u00e1c nh\u1eadn m\u1ea5t nhi\u1ec1u th\u1eddi gian, th\u00ec \u0111\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 v\u1ea5n \u0111\u1ec1 v\u1ec1 th\u1eddi gian \u0111o l\u01b0\u1eddng m\u00e0 l\u00e0 v\u1ea5n \u0111\u1ec1 v\u1ec1 quy tr\u00ecnh chu\u1ea9n b\u1ecb.<\/p>\n<h3>Kh\u00f4ng n\u00ean v\u1ed9i v\u00e0ng khi t\u0103ng t\u1ea3i<\/h3>\n<p>M\u1ed9t y\u1ebfu t\u1ed1 th\u01b0\u1eddng b\u1ecb b\u1ecf qua m\u1ed9t c\u00e1ch b\u1ea5t ng\u1edd ch\u00ednh l\u00e0 t\u1ed1c \u0111\u1ed9 t\u1ea3i.<\/p>\n<p>Trong B\u1ea3ng ph\u1ee5 l\u1ee5c 8.3, t\u1ed1c \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh \u0111\u01b0\u1ee3c l\u1ea5y l\u00e0m ti\u00eau chu\u1ea9n l\u00e0: khi t\u0103ng t\u1ea3i l\u00e0 t\u1ea3i tr\u1ecdng t\u1ed1i \u0111a theo thi\u1ebft k\u1ebf \u00f7 (10\u201320) kN\/ph\u00fat, v\u00e0 khi gi\u1ea3m t\u1ea3i l\u00e0 t\u1ea3i tr\u1ecdng t\u1ed1i \u0111a theo thi\u1ebft k\u1ebf \u00f7 (5\u201310) kN\/ph\u00fat,<\/p>\n<p><strong>Tr\u00e1nh t\u0103ng ho\u1eb7c gi\u1ea3m t\u1ea3i tr\u1ecdng m\u1ed9t c\u00e1ch \u0111\u1ed9t ng\u1ed9t<\/strong>\u0111\u01b0\u1ee3c n\u00eau r\u00f5 nh\u01b0 v\u1eady.<\/p>\n<p>C\u00e2u n\u00f3i \u201cT\u00f4i mu\u1ed1n k\u1ebft th\u00fac nhanh n\u00ean s\u1ebd ch\u1ea1y m\u00e1y b\u01a1m h\u1ebft c\u00f4ng su\u1ea5t\u201d kh\u00f4ng ph\u1ea3i l\u00e0 c\u00e1ch ti\u1ebft ki\u1ec7m th\u1eddi gian m\u00e0 c\u00f2n c\u00f3 th\u1ec3 d\u1eabn \u0111\u1ebfn d\u1eef li\u1ec7u b\u1ecb sai l\u1ec7ch.<\/p>\n<p>N\u1ebfu b\u1ea1n ch\u01b0a thu \u0111\u01b0\u1ee3c d\u1eef li\u1ec7u nh\u01b0 \u00fd, t\u00f4i ngh\u0129 b\u1ea1n n\u00ean ch\u00fa \u00fd \u0111\u1ebfn vi\u1ec7c t\u0103ng gi\u1ea3m v\u00e0 c\u1ed1 g\u1eafng duy tr\u00ec m\u1ee9c \u1ed5n \u0111\u1ecbnh m\u1ed7i l\u1ea7n.<\/p>\n<h2>Quy\u1ebft \u0111\u1ecbnh r\u00fat ng\u1eafn th\u1eddi gian ph\u1ea3i \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n d\u01b0\u1edbi t\u00ean c\u1ee7a k\u1ef9 s\u01b0 ch\u1ecbu tr\u00e1ch nhi\u1ec7m<\/h2>\n<p>T\u1ea5t c\u1ea3 nh\u1eefng n\u1ed9i dung \u0111\u00e3 vi\u1ebft t\u00f3m t\u1eaft \u0111\u1ebfn \u0111\u00e2y<strong>\u201cTheo quy\u1ebft \u0111\u1ecbnh c\u1ee7a k\u1ef9 s\u01b0 ch\u1ecbu tr\u00e1ch nhi\u1ec7m\u201d<\/strong>\u0110i\u1ec1u n\u00e0y \u0111i k\u00e8m v\u1edbi m\u1ed9t gi\u1ea3 \u0111\u1ecbnh.<\/p>\n<ul>\n<li>Trong giai \u0111o\u1ea1n l\u1eadp k\u1ebf ho\u1ea1ch th\u1eed nghi\u1ec7m, c\u1ea7n ghi r\u00f5: \u201cTh\u1eddi gian duy tr\u00ec l\u1ea5y B\u1ea3ng Ph\u1ee5 l\u1ee5c 8.6 l\u00e0m c\u01a1 s\u1edf; n\u1ebfu \u0111\u00e1p \u1ee9ng \u0111\u01b0\u1ee3c c\u00e1c gi\u00e1 tr\u1ecb ki\u1ec3m so\u00e1t, c\u00f3 th\u1ec3 r\u00fat ng\u1eafn th\u1eddi gian n\u00e0y theo quy\u1ebft \u0111\u1ecbnh c\u1ee7a k\u1ef9 s\u01b0 ch\u1ecbu tr\u00e1ch nhi\u1ec7m\u201d (*\u0110i\u1ec1u n\u00e0y l\u00e0 b\u1eaft bu\u1ed9c)<\/li>\n<li>Trong nh\u1eefng tr\u01b0\u1eddng h\u1ee3p v\u01b0\u1ee3t qu\u00e1 gi\u00e1 tr\u1ecb \u0111\u00e1nh gi\u00e1 0,5 mm ho\u1eb7c 0,2 mm, h\u00e3y ghi l\u1ea1i ngay l\u1eadp t\u1ee9c r\u1eb1ng \u0111\u00e3 th\u1ef1c hi\u1ec7n gia h\u1ea1n (v\u00ec \u0111i\u1ec1u n\u00e0y c\u0169ng ch\u1ecbu \u1ea3nh h\u01b0\u1edfng c\u1ee7a n\u1ec1n \u0111\u1ea5t n\u00ean t\u1ea1m th\u1eddi l\u00e0m nh\u01b0 v\u1eady)<\/li>\n<\/ul>\n<p>N\u1ebfu k\u1ebft h\u1ee3p hai \u0111i\u1ec1u n\u00e0y l\u1ea1i v\u1edbi nhau, th\u00ec d\u00f9 sau n\u00e0y c\u00f3 ai h\u1ecfi \u201cT\u1ea1i sao th\u1eddi gian l\u1ea1i ng\u1eafn th\u1ebf?\u201d, b\u1ea1n v\u1eabn c\u00f3 th\u1ec3 gi\u1ea3i th\u00edch d\u1ef1a tr\u00ean h\u1ed3 s\u01a1 ghi ch\u00e9p.<\/p>\n<p>D\u00f9 n\u00f3i v\u1eady, nh\u01b0ng ch\u1eb3ng ai bi\u1ebft l\u00e0 ch\u00fang ta \u0111\u00e3 r\u00fat ng\u1eafn th\u1eddi gian thi c\u00f4ng c\u1ea3? Ngay c\u1ea3 khi nh\u00e0 th\u1ea7u ch\u00ednh bi\u1ebft \u0111i ch\u0103ng n\u1eefa, ch\u1ec9 c\u1ea7n ghi r\u00f5 \u201cs\u1ebd r\u00fat ng\u1eafn th\u1eddi gian thi c\u00f4ng\u201d v\u00e0o b\u1ea3n k\u1ebf ho\u1ea1ch thi c\u00f4ng l\u00e0 \u0111\u01b0\u1ee3c r\u1ed3i.<\/p>\n<p>Th\u01b0\u1eddng th\u00ec t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng, c\u00f3 nh\u1eefng ng\u01b0\u1eddi d\u00f9 \u0111\u00e3 \u1ed5n \u0111\u1ecbnh r\u1ed3i nh\u01b0ng v\u1eabn ti\u1ebfp t\u1ee5c gi\u1eef nguy\u00ean t\u01b0 th\u1ebf \u0111\u00fang 60 ph\u00fat.<\/p>\n<p>T\u00f4i kh\u00f4ng n\u00f3i l\u00e0 x\u1ea5u.<\/p>\n<p>Tuy nhi\u00ean, m\u1ed9t khi \u0111\u00e3 \u1ed5n \u0111\u1ecbnh th\u00ec d\u1eef li\u1ec7u s\u1ebd kh\u00f4ng thay \u0111\u1ed5i, v\u00ec v\u1eady,<strong>30 ph\u00fat \u0111\u00f3 ch\u1eb3ng mang l\u1ea1i l\u1ee3i \u00edch g\u00ec cho ai c\u1ea3<\/strong>Sao th\u1ebf nh\u1ec9 w<\/p>\n<p>Ng\u01b0\u1ee3c l\u1ea1i, vi\u1ec7c k\u1ebft th\u00fac ch\u1ec9 v\u00ec \u0111\u00e3 \u0111\u1ebfn gi\u1edd m\u1eb7c d\u00f9 ho\u1ea1t \u0111\u1ed9ng v\u1eabn \u0111ang di\u1ec5n ra l\u00e0 kh\u00f4ng \u0111\u01b0\u1ee3c.<\/p>\n<p>T\u00e0i li\u1ec7u h\u01b0\u1edbng d\u1eabn kh\u00f4ng ph\u1ea3i \u0111ang y\u00eau c\u1ea7u \u201cph\u1ea3i tu\u00e2n th\u1ee7 th\u1eddi gian\u201d, m\u00e0 l\u00e0 \u201cph\u1ea3i ki\u1ec3m tra t\u00ednh \u1ed5n \u0111\u1ecbnh\u201d.<\/p>\n<p>\u0110\u1eebng nh\u00ecn \u0111\u1ed3ng h\u1ed3, m\u00e0 h\u00e3y nh\u00ecn m\u00e1y \u0111o \u0111\u1ed9 d\u1ecbch chuy\u1ec3n.<\/p>\n<p>Cu\u1ed1i c\u00f9ng th\u00ec m\u1ecdi chuy\u1ec7n c\u0169ng ch\u1ec9 g\u00f3i g\u1ecdn trong \u0111\u00f3 th\u00f4i.<\/p>\n<p>T\u00f4i c\u0169ng kh\u00f4ng d\u00e1m n\u00f3i r\u1eb1ng m\u00ecnh \u0111\u00e3 l\u00e0m \u0111\u01b0\u1ee3c m\u1ecdi th\u1ee9 m\u1ed9t c\u00e1ch ho\u00e0n h\u1ea3o \u0111\u1ebfn m\u1ee9c c\u00f3 th\u1ec3 t\u1ef1 h\u00e0o, nh\u01b0ng t\u00f4i ngh\u0129 \u0111\u00e3 \u0111\u1ebfn l\u00fac ph\u1ea3i t\u1eeb b\u1ecf th\u00f3i quen ch\u1ec9 nh\u00ecn \u0111\u1ed3ng h\u1ed3 khi l\u00e0m vi\u1ec7c r\u1ed3i (c\u01b0\u1eddi).<\/p>\n<p>&nbsp;<\/p>\n<p>H\u1eb9n g\u1eb7p l\u1ea1i nh\u00e9.<\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"CF0r6xM2pZ\"><p><a href=\"https:\/\/norimen.net\/vi\/biet-kha-nang-cua-minh-dung-lam-qua-muc\/\">Hi\u1ec3u r\u00f5 n\u0103ng l\u1ef1c \u0111\u1ec3 kh\u00f4ng l\u00e0m vi\u1ec7c qu\u00e1 s\u1ee9c | Ph\u00e2n c\u00f4ng nh\u00e2n s\u1ef1 t\u1ea1i c\u00f4ng tr\u01b0\u1eddng san l\u1ea5p taluy<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"\u201cHi\u1ec3u r\u00f5 n\u0103ng l\u1ef1c \u0111\u1ec3 kh\u00f4ng l\u00e0m qu\u00e1 s\u1ee9c | Ph\u00e2n c\u00f4ng nh\u00e2n s\u1ef1 trong l\u0129nh v\u1ef1c qu\u1ea3n l\u00fd m\u00e1i d\u1ed1c\u201d \u2014 Kh\u00f3a h\u1ecdc qu\u1ea3n l\u00fd m\u00e1i d\u1ed1c c\u1ee7a Shin-Ent\" src=\"https:\/\/norimen.net\/know-aptitude-no-overdo\/embed\/#?secret=IuqLV51Tek#?secret=CF0r6xM2pZ\" data-secret=\"CF0r6xM2pZ\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>","protected":false},"excerpt":{"rendered":"<p>Xin ch\u00e0o m\u1ecdi ng\u01b0\u1eddi. M\u00ecnh l\u00e0 Enta. Cu\u1ed1i tu\u1ea7n tr\u01b0\u1edbc, m\u00ecnh \u0111\u00e3 l\u00ean n\u00fai Kinka sau m\u1ed9t th\u1eddi gian d\u00e0i. V\u00e0i ng\u00e0y sau, b\u1eafp ch\u00e2n m\u00ecnh s\u01b0ng c\u1ee9ng l\u00ean lu\u00f4n (c\u01b0\u1eddi). Qu\u1ea3 nhi\u00ean, n\u1ebfu kh\u00f4ng th\u01b0\u1eddng xuy\u00ean t\u1eadp luy\u1ec7n th\u00ec c\u01a1 th\u1ec3 s\u1ebd tr\u1edf n\u00ean ch\u1eadm ch\u1ea1p\u2026 C\u01a1 th\u1ec3 r\u1ea5t th\u00e0nh th\u1eadt n\u00ean \u0111i\u1ec1u n\u00e0y c\u00e0ng \u0111\u00fang. H\u00e3y lu\u00f4n v\u1eadn \u0111\u1ed9ng c\u1ea3 t\u00e2m h\u1ed3n l\u1eabn c\u01a1 th\u1ec3 nh\u00e9!! Th\u00f4i kh\u00f4ng n\u00f3i chuy\u1ec7n lan man n\u1eefa. Tr\u01b0\u1edbc \u0111\u00e2y, c\u00f4ng tr\u00ecnh neo \u0111\u1ea5t\u2026<\/p>","protected":false},"author":2,"featured_media":66669,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_bbp_topic_count":0,"_bbp_reply_count":0,"_bbp_total_topic_count":0,"_bbp_total_reply_count":0,"_bbp_voice_count":0,"_bbp_anonymous_reply_count":0,"_bbp_topic_count_hidden":0,"_bbp_reply_count_hidden":0,"_bbp_forum_subforum_count":0,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[28],"tags":[58,272,14492,14493],"class_list":["post-66664","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ground-anchor","tag-58","tag-272","tag-14492","tag-jgs4101"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.2 (Yoast SEO v28.2) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ 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