{"id":66438,"date":"2026-08-01T08:00:48","date_gmt":"2026-07-31T23:00:48","guid":{"rendered":"https:\/\/norimen.net\/?p=66438"},"modified":"2026-07-30T11:17:56","modified_gmt":"2026-07-30T02:17:56","slug":"khai-niem-thiet-ke-coc-neo-dat","status":"publish","type":"post","link":"https:\/\/norimen.net\/vi\/soil-nailing-design-concept\/","title":{"rendered":"C\u00f3 c\u1ea7n ph\u1ea3i c\u1ed1 \u0111\u1ecbnh thanh c\u1ed1t th\u00e9p v\u00e0o n\u1ec1n \u0111\u00e1 kh\u00f4ng? | Gi\u1ea3i th\u00edch kh\u00e1i ni\u1ec7m thi\u1ebft k\u1ebf v\u1ec1 kh\u1ed1i \u0111\u1ea5t di chuy\u1ec3n v\u00e0 kh\u1ed1i \u0111\u1ea5t c\u1ed1 \u0111\u1ecbnh"},"content":{"rendered":"<p>Xin ch\u00e0o m\u1ecdi ng\u01b0\u1eddi.<\/p>\n<p>\u0110\u00e2y l\u00e0 Enta.<\/p>\n<p>Th\u00e1ng 8 \u0111\u00e3 b\u1eaft \u0111\u1ea7u r\u1ed3i!<br \/>\nNgay t\u1eeb tr\u01b0\u1edbc khi m\u00f9a h\u00e8 ch\u00ednh th\u1ee9c b\u1eaft \u0111\u1ea7u, tr\u1eddi \u0111\u00e3 n\u00f3ng qu\u00e1 m\u1ee9c khi\u1ebfn s\u1ee9c l\u1ef1c c\u1ee9 nh\u01b0 tan ch\u1ea3y v\u1eady.<\/p>\n<p>Th\u1eadt s\u1ef1 n\u0103m nay c\u0169ng l\u1ea1i r\u01a1i v\u00e0o t\u00ecnh tr\u1ea1ng \u201c\u0111\u1ecba ng\u1ee5c\u201d khi\u1ebfn t\u00f4i ki\u1ec7t s\u1ee9c r\u1ed3i...<\/p>\n<p>Th\u00f4i, quay l\u1ea1i ch\u1ee7 \u0111\u1ec1 ch\u00ednh<\/p>\n<p>L\u1ea7n n\u00e0y, ch\u00fang ta s\u1ebd n\u00f3i v\u1ec1 \u201ckh\u1ed1i \u0111\u1ea5t di chuy\u1ec3n\u201d v\u00e0 \u201ckh\u1ed1i \u0111\u1ea5t c\u1ed1 \u0111\u1ecbnh\u201d trong c\u00f4ng t\u00e1c l\u1eafp \u0111\u1eb7t c\u1ed1t th\u00e9p (c\u00f4ng t\u00e1c l\u1eafp \u0111\u1eb7t bu-l\u00f4ng neo).<\/p>\n<p>Khi ti\u1ebfn h\u00e0nh ki\u1ec3m tra ho\u1eb7c x\u00e1c nh\u1eadn c\u00e1c giai \u0111o\u1ea1n, th\u1ec9nh tho\u1ea3ng t\u00f4i \u0111\u01b0\u1ee3c c\u00e1c thanh tra vi\u00ean ho\u1eb7c c\u00e1n b\u1ed9 c\u01a1 quan ch\u1ee9c n\u0103ng h\u1ecfi nh\u01b0 th\u1ebf n\u00e0y.<\/p>\n<p>\u201cPh\u1ea7n neo c\u1ee7a thanh c\u1ed1t th\u00e9p n\u00e0y c\u00f3 th\u1ef1c s\u1ef1 \u0111\u00e3 \u0103n s\u00e2u v\u00e0o n\u1ec1n \u0111\u00e1 ch\u01b0a?\u201d<\/p>\n<p>T\u00f4i ngh\u0129 r\u1eb1ng trong s\u1ed1 c\u00e1c gi\u00e1m s\u00e1t vi\u00ean c\u1ee7a nh\u00e0 th\u1ea7u ch\u00ednh, c\u00f3 kh\u00e1 nhi\u1ec1u ng\u01b0\u1eddi kh\u00f4ng bi\u1ebft ph\u1ea3i tr\u1ea3 l\u1eddi th\u1ebf n\u00e0o n\u00ean c\u1ee9 \u0111\u1ee9ng im nh\u01b0 t\u01b0\u1ee3ng.<\/p>\n<p>C\u00e0ng l\u00e0 ng\u01b0\u1eddi trung th\u1ef1c th\u00ec c\u00e0ng d\u1ec5 r\u01a1i v\u00e0o t\u00ecnh hu\u1ed1ng ki\u1ec3u nh\u01b0: \u201cL\u00e0 nh\u00e0 th\u1ea7u ch\u00ednh th\u00ec c\u0169ng kh\u00f4ng th\u1ec3 n\u00f3i l\u00e0 kh\u00f4ng bi\u1ebft, nh\u01b0ng th\u1ef1c ra th\u00ec ho\u00e0n to\u00e0n kh\u00f4ng hi\u1ec3u g\u00ec c\u1ea3\u2026\u201d (c\u01b0\u1eddi)<\/p>\n<p>V\u1eady, c\u00e2u tr\u1ea3 l\u1eddi c\u1ee7a ch\u00fang t\u00f4i \u2013 nh\u1eefng ng\u01b0\u1eddi chuy\u00ean m\u00f4n \u2013 s\u1ebd ra sao nh\u1ec9?<\/p>\n<h3>C\u00e2u tr\u1ea3 l\u1eddi cho c\u00e2u h\u1ecfi \u201cC\u00f3 ph\u1ea3i n\u00f3 n\u1eb1m trong l\u1edbp \u0111\u00e1 n\u1ec1n kh\u00f4ng?\u201d l\u00e0 \u201cT\u00f4i kh\u00f4ng bi\u1ebft\u201d w<\/h3>\n<p>N\u00f3i th\u1eb3ng ra th\u00ec, c\u00e2u tr\u1ea3 l\u1eddi l\u00e0 \u201cT\u00f4i kh\u00f4ng bi\u1ebft\u201d (c\u01b0\u1eddi)<\/p>\n<p>N\u00f3i m\u1ed9t c\u00e1ch c\u01a1 b\u1ea3n, b\u00ean trong l\u00f2ng \u0111\u1ea5t kh\u00f4ng bao gi\u1edd \u0111\u01b0\u1ee3c ph\u00e2n chia m\u1ed9t c\u00e1ch r\u00f5 r\u00e0ng \u0111\u1ebfn m\u1ee9c \u201c\u0111\u1ebfn \u0111\u00e2y l\u00e0 kh\u1ed1i \u0111\u1ea5t di chuy\u1ec3n, t\u1eeb \u0111\u00e2y l\u00e0 kh\u1ed1i \u0111\u1ea5t c\u1ed1 \u0111\u1ecbnh\u201d nh\u01b0 v\u1eady.<\/p>\n<p>M\u1ee9c \u0111\u1ed9 phong h\u00f3a, c\u00e1c v\u1ebft n\u1ee9t v\u00e0 n\u01b0\u1edbc ng\u1ea7m \u0111\u1ec1u thay \u0111\u1ed5i li\u00ean t\u1ee5c, n\u00ean tr\u00ean th\u1ef1c t\u1ebf, ch\u00fang l\u00e0 m\u1ed9t th\u1ec3 th\u1ed1ng nh\u1ea5t.<\/p>\n<p>\u0110\u00f3 ch\u1ec9 l\u00e0 do thi\u1ebft k\u1ebf \u0111\u01b0\u1ee3c x\u00e2y d\u1ef1ng d\u1ef1a tr\u00ean kh\u00e1i ni\u1ec7m \u0111\u00f3 m\u00e0 th\u00f4i.<\/p>\n<p>H\u01a1n n\u1eefa, vi\u1ec7c kh\u1ea3o s\u00e1t khoan th\u0103m d\u00f2 kh\u00f4ng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n tr\u00ean c\u00f9ng m\u1ed9t \u0111\u01b0\u1eddng th\u1eb3ng v\u1edbi v\u1ecb tr\u00ed v\u00e0 g\u00f3c \u0111\u1eb7t c\u1ed1t th\u00e9p.<\/p>\n<p>Th\u1eadm ch\u00ed c\u00f2n c\u00f3 nh\u1eefng c\u00f4ng tr\u01b0\u1eddng quy m\u00f4 nh\u1ecf m\u00e0 to\u00e0n b\u1ed9 khu v\u1ef1c thi c\u00f4ng th\u1eadm ch\u00ed c\u00f2n ch\u01b0a \u0111\u01b0\u1ee3c kh\u1ea3o s\u00e1t ch\u1ea5t l\u01b0\u1ee3ng \u0111\u1ea5t.<\/p>\n<p>Trong b\u1ed1i c\u1ea3nh \u0111\u00f3, c\u00e2u h\u1ecfi ki\u1ec3u nh\u01b0 \u201c\u0110\u00e3 g\u1eb7p ph\u1ea3i \u0111\u00e1 ch\u01b0a? \u0110\u00e3 b\u00e1m ch\u1eafc v\u00e0o n\u1ec1n \u0111\u00e1 ch\u01b0a?\u201d th\u1ef1c s\u1ef1 l\u00e0 v\u00f4 l\u00fd, v\u00e0 th\u00e0nh th\u1eadt m\u00e0 n\u00f3i, ng\u01b0\u1eddi ta s\u1ebd kh\u00f4ng kh\u1ecfi t\u1ef1 h\u1ecfi: \u201cC\u00f3 ph\u1ea3i h\u1ecd kh\u00f4ng bi\u1ebft g\u00ec v\u1ec1 c\u00f4ng tr\u00ecnh kh\u00f4ng nh\u1ec9?\u201d (c\u01b0\u1eddi)<\/p>\n<p>Tuy nhi\u00ean, n\u1ebfu ch\u1ec9 n\u00f3i \u201cT\u00f4i kh\u00f4ng bi\u1ebft\u201d t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng th\u00ec s\u1ebd b\u1ecb ch\u1ec9 tr\u00edch d\u1eef d\u1ed9i (c\u01b0\u1eddi), v\u00ec v\u1eady m\u1ee5c \u0111\u00edch ch\u00ednh c\u1ee7a b\u00e0i vi\u1ebft n\u00e0y l\u00e0 gi\u00fap ch\u00fang ta c\u00f3 th\u1ec3 gi\u1ea3i th\u00edch \u0111\u01b0\u1ee3c t\u1ea1i sao \u201ckh\u00f4ng bi\u1ebft m\u00e0 v\u1eabn \u0111\u00fang\u201d d\u1ef1a tr\u00ean l\u00fd thuy\u1ebft thi\u1ebft k\u1ebf.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-66440\" src=\"https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2026\/07\/b2c008270c27280bd3b944af532166d1.jpg\" alt=\"Ng\u01b0\u1eddi gi\u00e1m s\u00e1t c\u00f4ng tr\u01b0\u1eddng g\u1eb7p kh\u00f3 kh\u0103n trong vi\u1ec7c ki\u1ec3m tra c\u00f4ng vi\u1ec7c l\u1eafp \u0111\u1eb7t c\u1ed1t th\u00e9p\" width=\"600\" height=\"338\" \/><\/p>\n<h3>C\u00e1c kh\u1ed1i \u0111\u1ea5t di chuy\u1ec3n v\u00e0 c\u00e1c kh\u1ed1i \u0111\u1ea5t c\u1ed1 \u0111\u1ecbnh l\u00e0 \u201cgi\u1ea3 \u0111\u1ecbnh thi\u1ebft k\u1ebf\u201d<\/h3>\n<p>H\u00e3y b\u1eaft \u0111\u1ea7u b\u1eb1ng vi\u1ec7c x\u00e1c \u0111\u1ecbnh c\u00e1c thu\u1eadt ng\u1eef.<\/p>\n<p>Theo \u0111\u1ecbnh ngh\u0129a thu\u1eadt ng\u1eef trong \u201cC\u1ea9m nang thi\u1ebft k\u1ebf v\u00e0 thi c\u00f4ng ph\u01b0\u01a1ng ph\u00e1p gia c\u1ed1 n\u1ec1n \u0111\u1ea5t\u201d (H25, l\u1ea7n in th\u1ee9 4), kh\u1ed1i \u0111\u1ea5t tr\u01b0\u1ee3t (kh\u1ed1i \u0111\u1ea5t di chuy\u1ec3n) \u0111\u01b0\u1ee3c \u0111\u1ecbnh ngh\u0129a l\u00e0 \u201ckh\u1ed1i \u0111\u1ea5t \u0111\u01b0\u1ee3c gi\u1ea3 \u0111\u1ecbnh l\u00e0 s\u1ebd tr\u01b0\u1ee3t ra ph\u00eda ngo\u00e0i s\u01b0\u1eddn d\u1ed1c trong ph\u00e2n t\u00edch \u1ed5n \u0111\u1ecbnh s\u01b0\u1eddn d\u1ed1c (ph\u01b0\u01a1ng ph\u00e1p c\u00e2n b\u1eb1ng c\u1ef1c h\u1ea1n)\u201d.<\/p>\n<p>\u0110i\u1ec3m m\u1ea5u ch\u1ed1t n\u1eb1m \u1edf t\u1eeb \u201cgi\u1ea3 \u0111\u1ecbnh\u201d.<\/p>\n<p>\u201cM\u1eb7t tr\u01b0\u1ee3t\u201d d\u00f9ng \u0111\u1ec3 ph\u00e2n bi\u1ec7t kh\u1ed1i \u0111\u1ea5t tr\u01b0\u1ee3t v\u00e0 kh\u1ed1i \u0111\u1ea5t kh\u00f4ng tr\u01b0\u1ee3t l\u00e0 m\u1ed9t \u0111\u01b0\u1eddng \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh trong ph\u01b0\u01a1ng ph\u00e1p t\u00ednh to\u00e1n g\u1ecdi l\u00e0 ph\u01b0\u01a1ng ph\u00e1p c\u00e2n b\u1eb1ng c\u1ef1c h\u1ea1n, ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 \u0111\u01b0\u1eddng \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh th\u00f4ng qua vi\u1ec7c \u0111\u00e0o \u0111\u1ea5t \u0111\u1ec3 ki\u1ec3m tra th\u1ef1c t\u1ebf.<\/p>\n<p>Trong ch\u01b0\u01a1ng v\u1ec1 kh\u1ea3o s\u00e1t c\u1ee7a cu\u1ed1n c\u1ea9m nang n\u00e0y, c\u0169ng c\u00f3 h\u01b0\u1edbng d\u1eabn r\u1eb1ng \u0111\u1ed1i v\u1edbi c\u00e1c khu v\u1ef1c c\u00f3 \u0111\u1ed9 \u1ed5n \u0111\u1ecbnh th\u1ea5p, c\u1ea7n ghi ch\u00fa \u201cm\u1eb7t tr\u01b0\u1ee3t gi\u1ea3 \u0111\u1ecbnh\u201d v\u00e0o b\u1ea3n v\u1ebd.<\/p>\n<p>\u0110\u00e2y ch\u1ec9 l\u00e0 m\u1ed9t \u201cgi\u1ea3 \u0111\u1ecbnh\u201d m\u00e0 th\u00f4i.<\/p>\n<p>H\u01a1n n\u1eefa, t\u1ea1i nhi\u1ec1u c\u00f4ng tr\u01b0\u1eddng, s\u1ed1 l\u01b0\u1ee3ng l\u1ed7 khoan d\u00f9ng l\u00e0m c\u01a1 s\u1edf \u0111\u1ec3 x\u00e1c \u0111\u1ecbnh m\u1eb7t tr\u01b0\u1ee3t ch\u1ec9 c\u00f3 v\u00e0i l\u1ed7 theo ph\u01b0\u01a1ng th\u1eb3ng \u0111\u1ee9ng.<\/p>\n<p>V\u00ec vi\u1ec7c khoan l\u1ed7 \u0111\u1ec3 ch\u00e8n c\u1ed1t th\u00e9p th\u01b0\u1eddng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n theo h\u01b0\u1edbng nghi\u00eang t\u1eeb ngang xu\u1ed1ng kho\u1ea3ng 5 \u0111\u1ebfn 45 \u0111\u1ed9, n\u00ean v\u1ed1n d\u0129 kh\u00f4ng c\u00f3 th\u00f4ng tin v\u1ec1 t\u1ea7ng \u0111\u1ecba ch\u1ea5t \u1edf c\u00f9ng g\u00f3c nghi\u00eang v\u00e0 c\u00f9ng v\u1ecb tr\u00ed v\u1edbi c\u1ed1t th\u00e9p.<\/p>\n<p>\u0110\u1ed1i v\u1edbi c\u00e1c c\u00f4ng tr\u00ecnh quy m\u00f4 nh\u1ecf, c\u00f3 nh\u1eefng tr\u01b0\u1eddng h\u1ee3p thi\u1ebft k\u1ebf ch\u1ec9 d\u1ef1a tr\u00ean k\u1ebft qu\u1ea3 kh\u1ea3o s\u00e1t khu v\u1ef1c l\u00e2n c\u1eadn v\u00e0 k\u1ebft qu\u1ea3 kh\u1ea3o s\u00e1t th\u1ef1c \u0111\u1ecba.<\/p>\n<p>Vi\u1ec7c \u0111\u01b0\u1eddng vi\u1ec1n m\u1eb7t tr\u01b0\u1ee3t gi\u1ea3 \u0111\u1ecbnh \u0111\u01b0\u1ee3c v\u1ebd tr\u00ean b\u1ea3n v\u1ebd thi\u1ebft k\u1ebf b\u1ecb l\u1ec7ch so v\u1edbi m\u1eb7t \u0111\u1ea5t th\u1ef1c t\u1ebf xu\u1ea5t hi\u1ec7n sau khi khoan (ho\u1eb7c kh\u00f4ng t\u1ed3n t\u1ea1i) th\u1ef1c ra l\u00e0 \u0111i\u1ec1u ho\u00e0n to\u00e0n b\u00ecnh th\u01b0\u1eddng.<\/p>\n<p>N\u00f3i c\u00e1ch kh\u00e1c, c\u00e1c kh\u1ed1i \u0111\u1ea5t di chuy\u1ec3n v\u00e0 kh\u1ed1i \u0111\u1ea5t c\u1ed1 \u0111\u1ecbnh ch\u1ec9 l\u00e0 m\u00f4 h\u00ecnh thi\u1ebft k\u1ebf \u0111\u01b0\u1ee3c t\u1ea1o ra b\u1eb1ng c\u00e1ch chia n\u1ec1n \u0111\u1ea5t th\u00e0nh hai ph\u1ea7n \u0111\u1ec3 ph\u1ee5c v\u1ee5 vi\u1ec7c t\u00ednh to\u00e1n, ch\u1ee9 kh\u00f4ng ph\u1ea3i l\u00e0 nh\u1eefng \u0111\u01b0\u1eddng ranh gi\u1edbi th\u1ef1c s\u1ef1 \u0111\u01b0\u1ee3c v\u1ea1ch ra tr\u00ean n\u1ec1n \u0111\u1ea5t t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng.<\/p>\n<p>\u0110\u00e2y ch\u00ednh l\u00e0 ph\u1ea7n quan tr\u1ecdng nh\u1ea5t c\u1ee7a c\u00e2u chuy\u1ec7n n\u00e0y w<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-66441\" src=\"https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2026\/07\/8248a0108650f27796ca2618cfe889a4.jpg\" alt=\"S\u01a1 \u0111\u1ed3 m\u1eb7t c\u1eaft m\u00f4 ph\u1ecfng kh\u1ed1i \u0111\u1ea5t di chuy\u1ec3n v\u00e0 kh\u1ed1i \u0111\u1ea5t c\u1ed1 \u0111\u1ecbnh\" width=\"600\" height=\"338\" \/><\/p>\n<h3>Ph\u01b0\u01a1ng ph\u00e1p l\u1eafp c\u1ed1t th\u00e9p l\u00e0 \u201clo\u1ea1i b\u00e1m d\u00ednh to\u00e0n di\u1ec7n\u201d | \u0110\u00e2y kh\u00f4ng ph\u1ea3i l\u00e0 ph\u01b0\u01a1ng ph\u00e1p thi c\u00f4ng c\u00f3 hi\u1ec7u qu\u1ea3 tr\u00ean n\u1ec1n \u0111\u00e1<\/h3>\n<p>Trong t\u00e0i li\u1ec7u h\u01b0\u1edbng d\u1eabn n\u00e0y, v\u1eadt li\u1ec7u gia c\u1ed1 ch\u1ee7 y\u1ebfu \u00e1p d\u1ee5ng \u201clo\u1ea1i c\u1ed1 \u0111\u1ecbnh to\u00e0n di\u1ec7n\u201d \u2013 t\u1ee9c l\u00e0 c\u1ed1 \u0111\u1ecbnh v\u1eadt li\u1ec7u l\u00f5i v\u00e0o n\u1ec1n \u0111\u1ea5t b\u1eb1ng v\u1eefa xi m\u0103ng, v.v. \u2013 v\u00e0 vi\u1ec7c thi\u1ebft k\u1ebf c\u0169ng \u0111\u01b0\u1ee3c th\u1ef1c hi\u1ec7n tr\u00ean c\u01a1 s\u1edf lo\u1ea1i c\u1ed1 \u0111\u1ecbnh to\u00e0n di\u1ec7n n\u00e0y.<\/p>\n<p>V\u00e0 c\u01a1 ch\u1ebf gia c\u1ed1 n\u00e0y, thay v\u00ec t\u1ea1o l\u1ef1c d\u1ef1 \u1ee9ng nh\u01b0 neo \u0111\u1ea5t, th\u00ec v\u1eadt li\u1ec7u gia c\u1ed1 \u0111\u01b0\u1ee3c c\u1ed1 \u0111\u1ecbnh v\u00e0o n\u1ec1n \u0111\u1ea5t d\u1ecdc theo to\u00e0n b\u1ed9 chi\u1ec1u d\u00e0i,<\/p>\n<p>Ng\u01b0\u1eddi ta cho r\u1eb1ng l\u1ef1c c\u1ea3n n\u00e0y \u0111\u01b0\u1ee3c t\u1ea1o ra m\u1ed9t c\u00e1ch th\u1ee5 \u0111\u1ed9ng do ma s\u00e1t b\u1ec1 m\u1eb7t khi x\u1ea3y ra bi\u1ebfn d\u1ea1ng c\u1ee7a n\u1ec1n \u0111\u1ea5t.<\/p>\n<p>L\u1ef1c k\u00e9o cho ph\u00e9p Ta c\u1ee7a v\u1eadt li\u1ec7u gia c\u1ed1 c\u1ea7n \u0111\u01b0\u1ee3c xem x\u00e9t trong thi\u1ebft k\u1ebf \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh theo c\u00f4ng th\u1ee9c sau.<\/p>\n<p>Ta = min(Tsa, T1pa + Toa, T2pa)<\/p>\n<p>\u30fbTsa: Gi\u1edbi h\u1ea1n ch\u1ecbu k\u00e9o cho ph\u00e9p c\u1ee7a ch\u00ednh v\u1eadt li\u1ec7u l\u00f5i (c\u1ed1t th\u00e9p)<\/p>\n<p>\u30fbT1pa\uff0bToa: Kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ef1c k\u00e9o cho ph\u00e9p c\u1ee7a b\u1ec1 m\u1eb7t v\u1eadt li\u1ec7u gia c\u1ed1 ph\u00eda kh\u1ed1i \u0111\u1ea5t di chuy\u1ec3n + kh\u1ea3 n\u0103ng ch\u1ecbu \u00e1p l\u1ef1c do v\u1eadt li\u1ec7u b\u1ec1 m\u1eb7t t\u1ea1o ra<\/p>\n<p>\u30fbT2pa: Kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ef1c k\u00e9o cho ph\u00e9p tr\u00ean b\u1ec1 m\u1eb7t v\u1eadt li\u1ec7u gia c\u1ed1 ph\u00eda kh\u1ed1i \u0111\u1ea5t kh\u00f4ng di chuy\u1ec3n<\/p>\n<p>&nbsp;<\/p>\n<p>N\u00f3i c\u00e1ch kh\u00e1c, thi\u1ebft k\u1ebf kh\u00f4ng ph\u1ee5 thu\u1ed9c v\u00e0o vi\u1ec7c \u201c\u0111\u00f3 c\u00f3 ph\u1ea3i l\u00e0 n\u1ec1n \u0111\u00e1 hay kh\u00f4ng\u201d, m\u00e0 \u0111\u01b0\u1ee3c x\u00e1c \u0111\u1ecbnh d\u1ef1a tr\u00ean gi\u00e1 tr\u1ecb t\u1ed1i thi\u1ec3u c\u1ee7a \u201ckh\u1ea3 n\u0103ng ch\u1ed1ng k\u00e9o \u1edf ph\u00eda trong v\u00e0 ph\u00eda ngo\u00e0i c\u1ee7a m\u1eb7t tr\u01b0\u1ee3t gi\u1ea3 \u0111\u1ecbnh\u201d.<\/p>\n<p>\u0110\u00f3 l\u00e0 quan \u0111i\u1ec3m cho r\u1eb1ng trong s\u1ed1 3 \u0111i\u1ec3m y\u1ebfu ti\u1ec1m n\u0103ng, \u0111i\u1ec3m y\u1ebfu nh\u1ea5t ch\u00ednh l\u00e0 gi\u1edbi h\u1ea1n hi\u1ec7u qu\u1ea3, ph\u1ea3i kh\u00f4ng?<\/p>\n<p>V\u1eady n\u1ebfu ph\u1ea7n \u0111\u1ea5t n\u1ec1n ph\u00eda kh\u1ed1i \u0111\u1ea5t b\u1ea5t \u0111\u1ed9ng l\u00e0 \u0111\u1ea5t \u0111\u00e1 th\u00ec s\u1ebd ra sao?<\/p>\n<p>C\u00e2u tr\u1ea3 l\u1eddi r\u1ea5t \u0111\u01a1n gi\u1ea3n: ch\u1ec9 c\u1ea7n t\u00ednh to\u00e1n d\u1ef1a tr\u00ean l\u1ef1c c\u1ea3n ma s\u00e1t b\u1ec1 m\u1eb7t c\u1ee7a \u0111\u1ea5t \u0111\u00e1, r\u1ed3i \u0111\u1ea3m b\u1ea3o chi\u1ec1u d\u00e0i c\u1ea7n thi\u1ebft t\u01b0\u01a1ng \u1ee9ng l\u00e0 \u0111\u01b0\u1ee3c.<\/p>\n<p>M\u1eb7c d\u00f9 l\u00fd t\u01b0\u1edfng nh\u1ea5t l\u00e0 n\u00ean x\u00e1c \u0111\u1ecbnh h\u1ec7 s\u1ed1 ma s\u00e1t b\u1ec1 m\u1eb7t \u03c4 th\u00f4ng qua th\u1eed nghi\u1ec7m k\u00e9o (th\u1eed nghi\u1ec7m \u0111\u00e1nh gi\u00e1 t\u00ednh ph\u00f9 h\u1ee3p), nh\u01b0ng hi\u1ebfm khi th\u1ef1c hi\u1ec7n th\u1eed nghi\u1ec7m n\u00e0y \u1edf giai \u0111o\u1ea1n thi\u1ebft k\u1ebf; do \u0111\u00f3, th\u00f4ng th\u01b0\u1eddng ng\u01b0\u1eddi ta s\u1eed d\u1ee5ng c\u00e1c gi\u00e1 tr\u1ecb \u01b0\u1edbc t\u00ednh theo lo\u1ea1i n\u1ec1n \u0111\u1ea5t (B\u1ea3ng gi\u1ea3i th\u00edch 5.4) ho\u1eb7c,<\/p>\n<p>Ng\u01b0\u1eddi ta th\u01b0\u1eddng s\u1eed d\u1ee5ng gi\u00e1 tr\u1ecb nh\u1ecf h\u01a1n trong c\u00f4ng th\u1ee9c t\u00ednh \u03c4 = \u03c3\u2032 \u00b7 tan\u03c6 + c (c\u00f4ng th\u1ee9c gi\u1ea3i th\u00edch (5.3)).<\/p>\n<p>B\u1ea3ng gi\u00e1 tr\u1ecb \u01b0\u1edbc t\u00ednh n\u00e0y \u0111\u01b0\u1ee3c l\u1eadp d\u1ef1a tr\u00ean m\u1ee9c gi\u00e1 tr\u1ecb th\u1ea5p nh\u1ea5t t\u1eeb d\u1eef li\u1ec7u th\u1eed nghi\u1ec7m k\u00e9o th\u1ef1c t\u1ebf \u0111\u1ed1i v\u1edbi c\u00e1t s\u1ecfi v\u00e0 c\u00e1t; c\u00f2n \u0111\u1ed1i v\u1edbi n\u1ec1n \u0111\u00e1 v\u00e0 \u0111\u1ea5t d\u1ebbo \u2013 nh\u1eefng lo\u1ea1i c\u00f3 \u00edt d\u1eef li\u1ec7u \u2013 th\u00ec \u0111\u01b0\u1ee3c t\u00ednh b\u1eb1ng c\u00e1ch gi\u1ea3m 20% so v\u1edbi gi\u00e1 tr\u1ecb ti\u00eau chu\u1ea9n c\u1ee7a neo \u0111\u1ea5t.<\/p>\n<p>Nh\u01b0 c\u00e1c b\u1ea1n c\u00f3 th\u1ec3 th\u1ea5y, trong thi\u1ebft k\u1ebf ho\u00e0n to\u00e0n kh\u00f4ng c\u00f3 gi\u1ea3 \u0111\u1ecbnh n\u00e0o ki\u1ec3u nh\u01b0 \u201cn\u1ebfu kh\u00f4ng \u0111i v\u00e0o l\u1edbp \u0111\u00e1 n\u1ec1n th\u00ec s\u1ebd kh\u00f4ng hi\u1ec7u qu\u1ea3\u201d c\u1ea3 (c\u01b0\u1eddi)<\/p>\n<p>N\u1ebfu l\u00e0 \u0111\u00e1 n\u1ec1n th\u00ec th\u1eddi gian thi c\u00f4ng s\u1ebd ng\u1eafn, c\u00f2n n\u1ebfu l\u00e0 \u0111\u1ea5t \u0111\u00e1 th\u00ec s\u1ebd l\u00e2u h\u01a1n. Ch\u1ec9 \u0111\u01a1n gi\u1ea3n l\u00e0 v\u1eady th\u00f4i.<\/p>\n<p>Khi l\u00e0m vi\u1ec7c t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng, b\u1ea1n s\u1ebd th\u1ea5y r\u1eb1ng khi s\u1ee3i ng\u1eafn th\u00ec n\u00f3 c\u1ee9ng, c\u00f2n khi s\u1ee3i d\u00e0i th\u00ec n\u00f3 m\u1ec1m, ph\u1ea3i kh\u00f4ng?<\/p>\n<p>Nh\u00e2n ti\u1ec7n, \u0111i\u1ec1u th\u00fa v\u1ecb l\u00e0 c\u00e1ch x\u1eed l\u00fd v\u1eadt li\u1ec7u b\u1ec1 m\u1eb7t.<\/p>\n<p>Khi s\u1eed d\u1ee5ng t\u01b0\u1eddng li\u00ean t\u1ee5c c\u00f3 \u0111\u1ed9 c\u1ee9ng cao, ch\u1eb3ng h\u1ea1n nh\u01b0 t\u01b0\u1eddng \u0111\u1ea5t gia c\u1ed1 \u1edf ph\u1ea7n \u0111\u00e0o, l\u00e0m v\u1eadt li\u1ec7u b\u1ec1 m\u1eb7t, ng\u01b0\u1eddi ta coi nh\u01b0 kh\u00f4ng x\u1ea3y ra hi\u1ec7n t\u01b0\u1ee3ng \u0111\u1ea5t tr\u01b0\u1ee3t ra kh\u1ecfi v\u1eadt li\u1ec7u gia c\u1ed1 \u1edf ph\u00eda kh\u1ed1i \u0111\u1ea5t di chuy\u1ec3n, do \u0111\u00f3 c\u00f3 th\u1ec3 t\u00ednh to\u00e1n theo c\u00f4ng th\u1ee9c Ta = min(Tsa, T2pa).<\/p>\n<p>Theo \u0111\u00f3, d\u00f9 l\u00e0 khung l\u01b0\u1edbi hay l\u1edbp phun, mi\u1ec5n l\u00e0 kh\u1ea3 n\u0103ng ch\u1ecbu l\u1ef1c c\u1ee7a v\u1eadt li\u1ec7u b\u1ec1 m\u1eb7t v\u00e0 \u0111\u1ed9 b\u00e1m d\u00ednh v\u1edbi v\u1eadt li\u1ec7u gia c\u1ed1 \u0111\u1ee7 t\u1ed1t th\u00ec \u0111\u1ec1u c\u00f3 th\u1ec3 x\u1eed l\u00fd nh\u01b0 nhau.<\/p>\n<p>N\u00f3i c\u00e1ch kh\u00e1c, mi\u1ec5n l\u00e0 khung ph\u00e1p l\u00fd v\u00e0 t\u1ea5m ch\u1eafn \u0111\u1ea7u \u0111\u1ee7 ch\u1eafc ch\u1eafn, th\u00ec ph\u00eda kh\u1ed1i \u0111\u1ea5t di chuy\u1ec3n s\u1ebd \u0111\u01b0\u1ee3c n\u00e2ng c\u1ea5p d\u1ef1a tr\u00ean gi\u1ea3 \u0111\u1ecbnh r\u1eb1ng n\u00f3 \u201cs\u1ebd kh\u00f4ng tr\u01b0\u1ee3t ra ngo\u00e0i\u201d.<\/p>\n<p>D\u00f9 sao th\u00ec, tr\u00ean l\u00fd thuy\u1ebft, c\u00f4ng vi\u1ec7c thi c\u00f4ng b\u1ec1 m\u1eb7t kh\u00f4ng ph\u1ea3i ch\u1ec9 l\u00e0 \u0111\u1ec3 trang tr\u00ed \u0111\u00e2u (c\u01b0\u1eddi)<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-66442\" src=\"https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2026\/07\/1e1e522aebfa2f4fdc763bc7dc9df268.jpg\" alt=\"Ma s\u00e1t b\u1ec1 m\u1eb7t xung quanh neo v\u00e0 b\u1ec1 m\u1eb7t tr\u01b0\u1ee3t\" width=\"600\" height=\"338\" \/><\/p>\n<p>Tuy nhi\u00ean, tr\u00ean th\u1ef1c t\u1ebf th\u00ec m\u1ed9t t\u1ea5m th\u00e9p k\u00edch th\u01b0\u1edbc 30cm \u00d7 30cm l\u00e0 \u0111\u1ee7 r\u1ed3i...<\/p>\n<h3>V\u00ec d\u1ec5 b\u1ecb nh\u1ea7m l\u1eabn v\u1edbi m\u1ecf neo m\u1eb7t \u0111\u1ea5t n\u00ean v\u1ea5n \u0111\u1ec1 tr\u1edf n\u00ean ph\u1ee9c t\u1ea1p<\/h3>\n<p>Nguy\u00ean nh\u00e2n d\u1eabn \u0111\u1ebfn c\u00e2u h\u1ecfi \u201cLi\u1ec7u n\u00f3 \u0111\u00e3 b\u00e1m ch\u1eafc v\u00e0o n\u1ec1n \u0111\u00e1 ch\u01b0a?\u201d c\u00f3 l\u1ebd l\u00e0 do nh\u1ea7m l\u1eabn v\u1edbi neo \u0111\u1ea5t.<\/p>\n<p>Theo \u0111\u1ecbnh ngh\u0129a trong \u201cTi\u00eau chu\u1ea9n thi\u1ebft k\u1ebf v\u00e0 thi c\u00f4ng neo \u0111\u1ea5t\u201d c\u1ee7a Hi\u1ec7p h\u1ed9i K\u1ef9 thu\u1eadt \u0110\u1ecba k\u1ef9 thu\u1eadt, neo \u0111\u1ea5t l\u00e0 ph\u01b0\u01a1ng ph\u00e1p thi c\u00f4ng trong \u0111\u00f3 to\u00e0n b\u1ed9 neo \u0111\u01b0\u1ee3c c\u1ea5u th\u00e0nh t\u1eeb \u201cchi\u1ec1u d\u00e0i th\u00e2n neo + chi\u1ec1u d\u00e0i t\u1ef1 do c\u1ee7a neo\u201d.<\/p>\n<p>Ph\u1ea7n c\u1ed9t t\u1ef1 do l\u00e0 \u0111o\u1ea1n ch\u1ec9 c\u00f3 ch\u1ee9c n\u0103ng truy\u1ec1n l\u1ef1c; theo nguy\u00ean t\u1eafc, ph\u1ea3i \u0111\u1ea3m b\u1ea3o chi\u1ec1u d\u00e0i t\u1ed1i thi\u1ec3u l\u00e0 4m, \u0111\u1ed3ng th\u1eddi thi c\u00f4ng c\u00e1c c\u1ecdc neo v\u00e0o n\u1ec1n \u0111\u1ea5t v\u1eefng ch\u1eafc ph\u00eda sau \u0111\u1ec3 t\u1ea1o l\u1ef1c c\u0103ng (l\u1ef1c d\u1ef1 \u1ee9ng l\u1ef1c), t\u1eeb \u0111\u00f3 ch\u1ee7 \u0111\u1ed9ng gi\u1eef ch\u1eb7t n\u1ec1n \u0111\u1ea5t t\u1ef1 nhi\u00ean.<\/p>\n<p>V\u00ec v\u1eady, \u0111\u1ed1i v\u1edbi c\u1ecdc neo, \u201cvi\u1ec7c c\u1ed1 \u0111\u1ecbnh th\u00e2n c\u1ecdc neo v\u00e0o lo\u1ea1i n\u1ec1n \u0111\u1ea5t n\u00e0o\u201d ch\u00ednh l\u00e0 y\u1ebfu t\u1ed1 then ch\u1ed1t trong thi\u1ebft k\u1ebf.<\/p>\n<p>Trong khi \u0111\u00f3, ph\u01b0\u01a1ng ph\u00e1p ch\u00e8n c\u1ed1t th\u00e9p n\u00e0y, nh\u01b0 \u0111\u00e3 \u0111\u1ec1 c\u1eadp tr\u01b0\u1edbc \u0111\u00f3, l\u00e0 lo\u1ea1i c\u1ed1 \u0111\u1ecbnh to\u00e0n b\u1ed9.<\/p>\n<p>Kh\u00f4ng c\u00f3 kh\u00e1i ni\u1ec7m \u201cchi\u1ec1u d\u00e0i t\u1ef1 do\u201d, m\u00e0 to\u00e0n b\u1ed9 chi\u1ec1u d\u00e0i \u2014 bao g\u1ed3m c\u1ea3 ph\u1ea7n kh\u1ed1i \u0111\u1ea5t di chuy\u1ec3n \u2014 \u0111\u1ec1u ti\u1ebfp x\u00fac v\u1edbi n\u1ec1n \u0111\u1ea5t v\u00e0 ph\u00e1t huy t\u00e1c d\u1ee5ng m\u1ed9t c\u00e1ch th\u1ee5 \u0111\u1ed9ng.<\/p>\n<p>Kh\u00f4ng ph\u1ea3i l\u00e0 c\u00f3 m\u1ed9t n\u01a1i \u0111\u1eb7c bi\u1ec7t n\u00e0o \u0111\u00f3 g\u1ecdi l\u00e0 \u201ckhu v\u1ef1c c\u1ed1 \u0111\u1ecbnh\u201d \u1edf ph\u00eda trong \u0111\u00e2u.<\/p>\n<p>Ngay c\u1ea3 trong \u201cH\u01b0\u1edbng d\u1eabn v\u1ec1 c\u00f4ng tr\u00ecnh \u0111\u1ea5t \u0111\u01b0\u1eddng b\u1ed9: C\u00f4ng tr\u00ecnh \u0111\u00e0o \u0111\u1ea5t v\u00e0 \u1ed5n \u0111\u1ecbnh m\u00e1i d\u1ed1c\u201d, c\u00e1c c\u00f4ng tr\u00ecnh gia c\u1ed1 n\u1ec1n \u0111\u1ea5t c\u0169ng \u0111\u01b0\u1ee3c ph\u00e2n lo\u1ea1i c\u00f9ng v\u1edbi c\u00f4ng tr\u00ecnh t\u01b0\u1eddng ch\u1eafn, c\u00f4ng tr\u00ecnh c\u1ecdc v\u00e0 c\u00f4ng tr\u00ecnh neo \u0111\u1ea5t v\u00e0o nh\u00f3m \u201cc\u00e1c c\u00f4ng tr\u00ecnh k\u1ebft c\u1ea5u c\u00f3 kh\u1ea3 n\u0103ng ng\u0103n ch\u1eb7n s\u1ef1 tr\u01b0\u1ee3t c\u1ee7a kh\u1ed1i \u0111\u1ea5t\u201d, nh\u01b0ng,<\/p>\n<p>D\u00f9 ch\u1ec9 l\u00e0 s\u1ef1 s\u1eafp x\u1ebfp gi\u1ed1ng nhau, c\u01a1 ch\u1ebf ho\u1ea1t \u0111\u1ed9ng l\u1ea1i ho\u00e0n to\u00e0n kh\u00e1c bi\u1ec7t.<\/p>\n<p>Vi\u1ec7c h\u1ecfi th\u1ee3 l\u1eafp c\u1ed1t th\u00e9p v\u1edbi th\u00e1i \u0111\u1ed9 nh\u01b0 ng\u01b0\u1eddi d\u1eabn ch\u01b0\u01a1ng tr\u00ecnh r\u1eb1ng \u201cL\u1edbp n\u1ec1n c\u1ed1 \u0111\u1ecbnh \u1edf \u0111\u00e2u?\u201d c\u0169ng gi\u1ed1ng nh\u01b0 vi\u1ec7c \u00e1p d\u1ee5ng c\u00e1c ti\u00eau ch\u00ed ki\u1ec3m \u0111\u1ecbnh xe \u0111\u1ea7u k\u00e9o c\u1ee1 l\u1edbn v\u00e0o m\u1ed9t chi\u1ebfc xe t\u1ea3i nh\u1ecf v\u1eady (c\u01b0\u1eddi)<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-66408\" src=\"https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2026\/07\/ed9549e3ddf89679f40f4a1661e155b7-1.jpg\" alt=\"S\u01a1 \u0111\u1ed3 kh\u00e1i ni\u1ec7m m\u1eb7t c\u1eaft ngang c\u1ee7a c\u00f4ng \u0111o\u1ea1n l\u1eafp c\u1ed1t th\u00e9p\" width=\"600\" height=\"338\" \/><\/p>\n<p>&nbsp;<\/p>\n<h3>V\u1eady th\u00ec t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng, ng\u01b0\u1eddi ta ch\u1ee9ng minh ch\u1ea5t l\u01b0\u1ee3ng b\u1eb1ng c\u00e1ch n\u00e0o?<\/h3>\n<p>D\u00f9 sao th\u00ec, n\u1ebfu t\u1ea1i bu\u1ed5i ki\u1ec3m tra m\u00e0 ch\u1ec9 n\u00f3i \u201cT\u00f4i kh\u00f4ng bi\u1ebft b\u00ean trong \u0111\u1ea5t th\u1ebf n\u00e0o\u201d r\u1ed3i k\u1ebft th\u00fac th\u00ec thanh tra vi\u00ean s\u1ebd b\u1ef1c m\u00ecnh v\u00e0 k\u1ebft th\u00fac lu\u00f4n, n\u00ean w,<\/p>\n<p>M\u00ecnh s\u1ebd vi\u1ebft ra nh\u1eefng \u0111i\u1ec1u m\u00e0 \u0111\u1ed9i thi c\u00f3 th\u1ec3 t\u1ef1 h\u00e0o gi\u1edbi thi\u1ec7u \u0111\u00e2y www<\/p>\n<p>\u0110i\u1ec1u ki\u1ec7n \u0111\u1ec3 c\u00f4ng ngh\u1ec7 c\u1eafm c\u1ed1t th\u00e9p ph\u00e1t huy hi\u1ec7u qu\u1ea3 l\u00e0 \u201cv\u1eadt li\u1ec7u gia c\u1ed1 c\u00f3 chi\u1ec1u d\u00e0i \u0111\u00fang theo thi\u1ebft k\u1ebf ph\u1ea3i \u0111\u01b0\u1ee3c bao ph\u1ee7 to\u00e0n b\u1ed9 b\u1eb1ng v\u1eefa v\u00e0 b\u00e1m ch\u1eb7t v\u00e0o n\u1ec1n \u0111\u1ea5t\u201d.<\/p>\n<p>V\u00ec v\u1eady, \u0111i\u1ec1u c\u1ea7n ch\u1ee9ng minh kh\u00f4ng ph\u1ea3i l\u00e0 c\u1ea5u tr\u00fac b\u00ean trong c\u1ee7a l\u1edbp \u0111\u1ea5t n\u1ec1n, m\u00e0 l\u00e0 \u0111i\u1ec1u n\u00e0y.<\/p>\n<p><strong>\u30fbB\u1ea3n ghi k\u1ebft qu\u1ea3 ki\u1ec3m tra chi\u1ec1u d\u00e0i khoan (qu\u1ea3n l\u00fd ch\u1ea5t l\u01b0\u1ee3ng thi c\u00f4ng) <\/strong><\/p>\n<p><strong>\u30fbChi\u1ec1u d\u00e0i c\u1ed1t th\u00e9p \u0111\u00e3 l\u1eafp \u0111\u1eb7t (qu\u1ea3n l\u00fd v\u1eadt li\u1ec7u)<\/strong><\/p>\n<p><strong>\u30fb\u0110\u01b0\u1eddng k\u00ednh (qu\u1ea3n l\u00fd ti\u00eau chu\u1ea9n)<\/strong><\/p>\n<p><strong> \u30fbQu\u1ea3n l\u00fd c\u00f4ng th\u1ee9c tr\u1ed9n v\u00e0 l\u01b0\u1ee3ng v\u1eefa b\u01a1m (qu\u1ea3n l\u00fd ch\u1ea5t l\u01b0\u1ee3ng)<\/strong><\/p>\n<p><strong> \u30fbH\u00ecnh \u1ea3nh (t\u00ecnh tr\u1ea1ng) qu\u00e1 tr\u00ecnh c\u1ed1 \u0111\u1ecbnh t\u1ea5m che \u0111\u1ea7u v\u00e0 \u0111ai \u1ed1c<\/strong><\/p>\n<p>T\u00f3m l\u1ea1i, c\u1ea7n th\u1ef1c hi\u1ec7n nghi\u00eam t\u00fac c\u00f4ng t\u00e1c qu\u1ea3n l\u00fd thi c\u00f4ng th\u00f4ng th\u01b0\u1eddng<span style=\"color: #0000ff;\"><strong>\u201c\u0110\u00e3 \u0111\u01b0\u1ee3c \u0111\u00f3ng g\u00f3i k\u1ef9 l\u01b0\u1ee1ng n\u00ean kh\u00f4ng c\u00f3 v\u1ea5n \u0111\u1ec1 g\u00ec c\u1ea3!\u201d<\/strong><\/span>V\u1eady l\u00e0 \u0111\u01b0\u1ee3c r\u1ed3i<\/p>\n<p>&nbsp;<\/p>\n<p>S\u1ebd d\u1ec5 hi\u1ec3u h\u01a1n n\u1ebfu b\u1ea1n h\u00ecnh dung t\u00ecnh hu\u1ed1ng th\u1ef1c t\u1ebf t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng.<\/p>\n<p>Gi\u1ea3 s\u1eed \u0111ang khoan l\u1ed7 \u0111\u1ec3 l\u1eafp c\u1ed1t th\u00e9p d\u00e0i 5m, th\u00ec t\u1eeb kho\u1ea3ng 3m tr\u1edf \u0111i, l\u1ef1c ph\u1ea3n h\u1ed3i t\u1eeb m\u00e1y khoan \u0111\u1ed9t ng\u1ed9t gi\u1ea3m \u0111i v\u00e0 ch\u1ea5t b\u00f9n th\u1ea3i ra tr\u1edf n\u00ean l\u1eabn \u0111\u1ea7y \u0111\u1ea5t s\u00e9t.<\/p>\n<p>L\u00fac n\u00e0y, \u0111i\u1ec1u duy nh\u1ea5t ch\u00fang t\u00f4i nh\u1eadn ra l\u00e0 \u201cc\u00f3 v\u1ebb nh\u01b0 t\u00ednh ch\u1ea5t c\u1ee7a n\u1ec1n \u0111\u1ea5t \u0111\u00e3 thay \u0111\u1ed5i t\u1eeb kho\u1ea3ng 3m tr\u1edf \u0111i\u201d, v\u00e0,<\/p>\n<p>Kh\u00f4ng ai c\u00f3 th\u1ec3 kh\u1eb3ng \u0111\u1ecbnh ch\u1eafc ch\u1eafn \u0111\u00f3 l\u00e0 b\u1ec1 m\u1eb7t tr\u01b0\u1ee3t \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf hay ch\u1ec9 \u0111\u01a1n thu\u1ea7n l\u00e0 hi\u1ec7n t\u01b0\u1ee3ng phong h\u00f3a kh\u00f4ng \u0111\u1ed3ng \u0111\u1ec1u.<\/p>\n<p>C\u1ea3m gi\u00e1c khi khoan v\u00e0 m\u00e0u s\u1eafc c\u1ee7a ch\u1ea5t nh\u1ea7y l\u00e0 nh\u1eefng th\u00f4ng tin qu\u00fd gi\u00e1, nh\u01b0ng ch\u1ec9 d\u1ef1a v\u00e0o \u0111\u00f3 m\u00e0 kh\u1eb3ng \u0111\u1ecbnh r\u1eb1ng \u201c\u0111\u00e3 b\u00e1m ch\u1eafc v\u00e0o n\u1ec1n \u0111\u00e1\u201d th\u00ec c\u00f3 v\u1ebb h\u01a1i qu\u00e1 \u0111\u00e1ng, ph\u1ea3i kh\u00f4ng?<\/p>\n<p>N\u1ebfu qua c\u1ea3m gi\u00e1c khi khoan ho\u1eb7c ch\u1ea5t b\u00f9n th\u1ea3i ra, nh\u1eadn th\u1ea5y n\u1ec1n \u0111\u1ea5t r\u00f5 r\u00e0ng k\u00e9m h\u01a1n so v\u1edbi gi\u1ea3 \u0111\u1ecbnh trong thi\u1ebft k\u1ebf, th\u00ec \u0111\u00f3 kh\u00f4ng ph\u1ea3i l\u00e0 v\u1ea5n \u0111\u1ec1 \u201ckh\u00f4ng g\u1eb7p \u0111\u01b0\u1ee3c l\u1edbp \u0111\u00e1 n\u1ec1n\u201d m\u00e0 l\u00e0 v\u1ea5n \u0111\u1ec1 c\u1ea7n r\u00e0 so\u00e1t l\u1ea1i thi\u1ebft k\u1ebf.<\/p>\n<p>Theo \u0111\u00fang quy tr\u00ecnh, c\u1ea7n ph\u1ea3i th\u1ea3o lu\u1eadn v\u1edbi gi\u00e1m s\u00e1t vi\u00ean \u0111\u1ec3 ti\u1ebfn h\u00e0nh th\u1eed nghi\u1ec7m k\u00e9o v\u00e0 \u0111i\u1ec1u ch\u1ec9nh thi\u1ebft k\u1ebf! (D\u00f9 th\u1ef1c t\u1ebf th\u00ec gi\u1eefa ch\u1eebng ch\u1eb3ng ai l\u00e0m th\u1ebf c\u1ea3, haha)<\/p>\n<p>Ngay c\u1ea3 trong s\u1ed5 tay h\u01b0\u1edbng d\u1eabn c\u0169ng c\u00f3 ghi m\u1ed9t nh\u1eadn \u0111\u1ecbnh mang t\u00ednh k\u1ef3 v\u1ecdng r\u1eb1ng, trong giai \u0111o\u1ea1n \u0111\u1ea7u c\u1ee7a qu\u00e1 tr\u00ecnh thi c\u00f4ng, n\u00ean ti\u1ebfn h\u00e0nh th\u1eed nghi\u1ec7m k\u00e9o tr\u00ean n\u1ec1n \u0111\u1ea5t t\u1ea1i hi\u1ec7n tr\u01b0\u1eddng v\u00e0 \u00e1p d\u1ee5ng k\u1ebft qu\u1ea3 \u0111\u00f3 v\u00e0o c\u00e1c c\u00f4ng \u0111o\u1ea1n thi c\u00f4ng ti\u1ebfp theo \u2013 \u0111\u00f3 l\u00e0 ph\u01b0\u01a1ng ph\u00e1p thi c\u00f4ng d\u1ef1a tr\u00ean th\u00f4ng tin.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-48019\" src=\"https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2022\/11\/2022-11-22-08.53.15.jpg\" alt=\"K\u1ef3 thi c\u01a1 b\u1ea3n\" width=\"600\" height=\"450\" srcset=\"https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2022\/11\/2022-11-22-08.53.15.jpg 600w, https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2022\/11\/2022-11-22-08.53.15-300x225.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>D\u00f9 v\u1eady, khi \u0111\u01b0\u1ee3c h\u1ecfi \u201cC\u00f3 ph\u1ea3i \u0111\u00e3 ch\u1ea1m v\u00e0o l\u1edbp \u0111\u00e1 n\u1ec1n r\u1ed3i kh\u00f4ng?\u201d, c\u00e2u tr\u1ea3 l\u1eddi m\u1eabu c\u00f3 l\u1ebd s\u1ebd nh\u01b0 th\u1ebf n\u00e0y ch\u0103ng?<\/p>\n<p><strong>\u201cPh\u01b0\u01a1ng ph\u00e1p c\u1eafm c\u1ed1t th\u00e9p l\u00e0 ph\u01b0\u01a1ng ph\u00e1p c\u1ed1 \u0111\u1ecbnh to\u00e0n di\u1ec7n, kh\u00f4ng ph\u1ea3i l\u00e0 ph\u01b0\u01a1ng ph\u00e1p c\u1ed1 \u0111\u1ecbnh v\u00e0o n\u1ec1n \u0111\u00e1. Ph\u01b0\u01a1ng ph\u00e1p n\u00e0y \u0111\u01b0\u1ee3c thi\u1ebft k\u1ebf \u0111\u1ec3 t\u1ea1o l\u1ef1c c\u1ea3n nh\u1edd ma s\u00e1t b\u1ec1 m\u1eb7t v\u1edbi n\u1ec1n \u0111\u1ea5t ph\u00eda s\u00e2u h\u01a1n so v\u1edbi m\u1eb7t tr\u01b0\u1ee3t d\u1ef1 ki\u1ebfn, v\u00e0 chi\u1ec1u d\u00e0i c\u1ea7n thi\u1ebft \u0111\u01b0\u1ee3c \u0111\u1ea3m b\u1ea3o th\u00f4ng qua t\u00ednh to\u00e1n thi\u1ebft k\u1ebf ph\u00f9 h\u1ee3p v\u1edbi lo\u1ea1i n\u1ec1n \u0111\u1ea5t. Trong qu\u00e1 tr\u00ecnh thi c\u00f4ng, vi\u1ec7c khoan l\u1ed7, c\u1eafm c\u1ed1t th\u00e9p v\u00e0 b\u01a1m v\u1eefa \u0111\u01b0\u1ee3c qu\u1ea3n l\u00fd ch\u1eb7t ch\u1ebd theo \u0111\u00fang chi\u1ec1u d\u00e0i thi\u1ebft k\u1ebf.\u201d<\/strong><\/p>\n<p>V\u1edbi c\u00e1ch n\u00e0y, ch\u1eafc h\u1eb3n ph\u1ea7n l\u1edbn m\u1ecdi ng\u01b0\u1eddi s\u1ebd kh\u00f4ng hi\u1ec3u g\u00ec v\u00e0 s\u1ebd n\u00f3i l\u1ea5p l\u1eedng th\u00f4i w<\/p>\n<p>N\u1ebfu v\u1eabn kh\u00f4ng \u0111\u01b0\u1ee3c, th\u00ec h\u00e3y cho h\u1ecd xem ph\u1ea7n trong s\u00e1ch h\u01b0\u1edbng d\u1eabn (b\u1ea3n v\u1ebd minh h\u1ecda kh\u00e1i ni\u1ec7m l\u1ef1c c\u00f3 t\u00ednh \u0111\u1ebfn kh\u1ed1i \u0111\u1ea5t di chuy\u1ec3n) nh\u00e9 w<\/p>\n<p>Cu\u1ed1i c\u00f9ng th\u00ec, b\u00ean trong l\u00f2ng \u0111\u1ea5t l\u00e0 \u0111i\u1ec1u m\u00e0 kh\u00f4ng ai c\u00f3 th\u1ec3 nh\u00ecn th\u1ea5y \u0111\u01b0\u1ee3c c\u1ea3.<\/p>\n<p>C\u1ea3 ng\u01b0\u1eddi thi\u1ebft k\u1ebf, thanh tra vi\u00ean l\u1eabn ch\u00fang t\u00f4i \u0111\u1ec1u nh\u01b0 v\u1eady.<\/p>\n<p>Ch\u00ednh v\u00ec v\u1eady, trong thi\u1ebft k\u1ebf, ng\u01b0\u1eddi ta \u0111\u00e3 n\u00eau r\u00f5 gi\u1ea3 \u0111\u1ecbnh v\u1ec1 \u201cm\u1eb7t tr\u01b0\u1ee3t d\u1ef1 ki\u1ebfn\u201d v\u00e0 \u00e1p d\u1ee5ng h\u1ec7 s\u1ed1 an to\u00e0n \u0111\u1ec3 b\u00f9 \u0111\u1eafp cho s\u1ef1 bi\u1ebfn \u0111\u1ed9ng c\u1ee7a n\u1ec1n \u0111\u1ea5t v\u00e0 qu\u00e1 tr\u00ecnh thi c\u00f4ng.<\/p>\n<p>T\u0103ng c\u01b0\u1eddng an to\u00e0n ngay t\u1eeb giai \u0111o\u1ea1n thi\u1ebft k\u1ebf, v\u00e0 t\u1ea1i c\u00f4ng tr\u01b0\u1eddng, \u0111\u1ea3m b\u1ea3o an to\u00e0n to\u00e0n di\u1ec7n nh\u1edd v\u1eadt li\u1ec7u an to\u00e0n, thi c\u00f4ng an to\u00e0n v\u00e0 qu\u1ea3n l\u00fd an to\u00e0n!<\/p>\n<p>Ch\u1eafc ch\u1eafn r\u1ed3i!<\/p>\n<p>V\u00e0 \u0111\u1ec3 l\u1ea1i b\u1eb1ng ch\u1ee9ng cho th\u1ea5y \u0111\u00e3 t\u1ea1o ra th\u1ee9 \u0111\u00fang nh\u01b0 gi\u1ea3 \u0111\u1ecbnh \u0111\u00f3.<\/p>\n<p>N\u1ebfu \u0111\u00e3 hi\u1ec3u r\u00f5 s\u1ef1 ph\u00e2n c\u00f4ng vai tr\u00f2 n\u00e0y, th\u00ec kh\u00f4ng c\u1ea7n ph\u1ea3i lo l\u1eafng m\u1ed7i khi nghe c\u00e2u \u201c\u0110\u00e1 \u0111\u00e3 xu\u1ea5t hi\u1ec7n ch\u01b0a?\u201d n\u1eefa r\u1ed3i www<\/p>\n<p>H\u00e3y t\u1ef1 h\u00e0o n\u00f3i l\u00ean \u0111i\u1ec1u \u0111\u00f3.<strong>\u201cCh\u00fang t\u00f4i kh\u00f4ng bi\u1ebft b\u00ean trong \u0111\u1ea5t th\u1ebf n\u00e0o! Nh\u01b0ng b\u00ean trong c\u00f3 nh\u1eefng th\u1ee9 \u0111\u00fang nh\u01b0 thi\u1ebft k\u1ebf!\u201d R\u1ea5t an to\u00e0n!<\/strong>Th\u1ebf \u00e0 w<\/p>\n<p>N\u1ebfu c\u1ea7n th\u00ec c\u1ee9 n\u00f3i \u201c\u0110\u00fang nh\u01b0 thi\u1ebft k\u1ebf!\u201d c\u0169ng \u0111\u01b0\u1ee3c th\u00f4i w (Cu\u1ed1i c\u00f9ng th\u00ec c\u00e2u tr\u1ea3 l\u1eddi c\u0169ng h\u01a1i qua loa \u00e0? w)<\/p>\n<p>&nbsp;<\/p>\n<p>H\u1eb9n g\u1eb7p l\u1ea1i nh\u00e9.<\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"2qz4dVodrw\"><p><a href=\"https:\/\/norimen.net\/vi\/labor-shortage-cut-decisions\/\">Th\u1eddi \u0111\u1ea1i thi\u1ebfu h\u1ee5t nh\u00e2n l\u1ef1c! H\u00e3y quy\u1ebft \u0111\u1ecbnh xem s\u1ebd t\u1eeb b\u1ecf \u0111i\u1ec1u g\u00ec \u0111\u1ec3 ti\u1ebfp t\u1ee5c s\u1ed1ng!<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"\u201cTh\u1eddi \u0111\u1ea1i thi\u1ebfu h\u1ee5t nh\u00e2n l\u1ef1c! H\u00e3y quy\u1ebft \u0111\u1ecbnh s\u1ebd t\u1eeb b\u1ecf \u0111i\u1ec1u g\u00ec \u0111\u1ec3 ti\u1ebfp t\u1ee5c s\u1ed1ng!\u201d \u2014 L\u1edbp h\u1ecdc qu\u1ea3n l\u00fd s\u01b0\u1eddn d\u1ed1c c\u1ee7a Shin-Enta\" src=\"https:\/\/norimen.net\/labor-shortage-cut-decisions\/embed\/#?secret=iRF9Tg0TSo#?secret=2qz4dVodrw\" data-secret=\"2qz4dVodrw\" 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. T\u00f4i l\u00e0 Enta. Th\u00e1ng 8 \u0111\u00e3 b\u1eaft \u0111\u1ea7u r\u1ed3i! Ngay t\u1eeb tr\u01b0\u1edbc khi m\u00f9a h\u00e8 ch\u00ednh th\u1ee9c b\u1eaft \u0111\u1ea7u, tr\u1eddi \u0111\u00e3 n\u00f3ng \u0111\u1ebfn m\u1ee9c khi\u1ebfn s\u1ee9c l\u1ef1c nh\u01b0 tan ch\u1ea3y. Th\u1eadt s\u1ef1 n\u0103m nay c\u0169ng \u1edf ch\u1ebf \u0111\u1ed9 \u201c\u0111\u1ecba ng\u1ee5c\u201d khi\u1ebfn t\u00f4i ki\u1ec7t s\u1ee9c\u2026 Th\u00f4i kh\u00f4ng n\u00f3i chuy\u1ec7n phi\u1ebfm n\u1eefa. L\u1ea7n n\u00e0y t\u00f4i s\u1ebd n\u00f3i v\u1ec1 \u201ckh\u1ed1i \u0111\u1ea5t di chuy\u1ec3n\u201d v\u00e0 \u201ckh\u1ed1i \u0111\u1ea5t c\u1ed1 \u0111\u1ecbnh\u201d trong c\u00f4ng vi\u1ec7c l\u1eafp \u0111\u1eb7t c\u1ed1t th\u00e9p (c\u00f4ng vi\u1ec7c l\u1eafp \u0111\u1eb7t bu l\u00f4ng neo). Vi\u1ec7c ki\u1ec3m tra v\u00e0 x\u00e1c nh\u1eadn c\u00e1c giai \u0111o\u1ea1n\u2026<\/p>","protected":false},"author":2,"featured_media":66444,"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":[30],"tags":[44,116,5520,14461],"class_list":["post-66438","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-lock-bolt","tag-44","tag-116","tag-5520","tag-14461"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.1 (Yoast SEO v28.1) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ 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