{"id":48046,"date":"2022-12-01T08:00:42","date_gmt":"2022-11-30T23:00:42","guid":{"rendered":"https:\/\/norimen.net\/wordpress\/?p=48046"},"modified":"2026-05-17T11:54:25","modified_gmt":"2026-05-17T02:54:25","slug":"basic-landslide-measures-3","status":"publish","type":"post","link":"https:\/\/norimen.net\/en\/landslide-measures-basic-3\/","title":{"rendered":"Basic Principles of Landslide Mitigation Measures (Part 3)"},"content":{"rendered":"<p>Hello, everyone.<\/p>\n<p>This is Enta.<\/p>\n<p>It's December already!!<\/p>\n<p>There's not much of this year left.<\/p>\n<p>Never have an accident! Don't panic! Let's do our jobs with our usual calm attitude.<\/p>\n<p>There's absolutely no point in everyone just getting anxious, so,<\/p>\n<p>Let's be extra careful ^^<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-5182\" src=\"https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2017\/11\/59e41a17bb071c8d55225510cb7fa430.jpg\" alt=\"December\" width=\"600\" height=\"460\" \/><\/p>\n<hr \/>\n<p>But that's beside the point.<\/p>\n<p><a title=\"Basic Principles of Landslide Mitigation Measures (Part 1)\" href=\"https:\/\/norimen.net\/en\/basic-landslide-measures-1\/\" target=\"_blank\" rel=\"noopener\">Basic Principles of Landslide Mitigation Measures (Part 1)<\/a><\/p>\n<p><a title=\"Basic Principles of Landslide Mitigation Measures (Part 2)\" href=\"https:\/\/norimen.net\/en\/basic-landslide-measures-2\/\" target=\"_blank\" rel=\"noopener\">Basic Principles of Landslide Mitigation Measures (Part 2)<\/a><\/p>\n<p>This post is a continuation of the last one, lol.<\/p>\n<p>&nbsp;<\/p>\n<p>This is the groundwater drainage project for No. 3.<\/p>\n<p>This is one of our jobs, isn't it?<\/p>\n<p>Water is the cause of most landslides.<\/p>\n<p>First, drain the water! This is the most important thing.<\/p>\n<p>Construction to Control Groundwater!<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-48047\" src=\"https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2022\/11\/6337104cbd1913406b591ad783082520.jpg\" alt=\"Groundwater Drainage Works\" width=\"600\" height=\"400\" srcset=\"https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2022\/11\/6337104cbd1913406b591ad783082520.jpg 600w, https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2022\/11\/6337104cbd1913406b591ad783082520-300x200.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>We often carry out work on collection wells and drainage boreholes, don't we?<\/p>\n<p>&nbsp;<\/p>\n<p>The illustration above shows a catch basin.<\/p>\n<p>We'll install a liner plate on the mountain and start digging straight down from that point.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-6563\" src=\"https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2018\/04\/36128.jpg\" alt=\"Collecting Well Construction\" width=\"600\" height=\"338\" srcset=\"https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2018\/04\/36128.jpg 600w, https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2018\/04\/36128-300x169.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>Once we reach the bottom, we will drill a radial dewatering borehole.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-6568\" src=\"https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2018\/04\/583b6ace1c05872d1cfcf2b51b9895c2.jpg\" alt=\"Collecting Well Construction: Horizontal Boring Water Collection Status\" width=\"600\" height=\"400\" srcset=\"https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2018\/04\/583b6ace1c05872d1cfcf2b51b9895c2.jpg 600w, https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2018\/04\/583b6ace1c05872d1cfcf2b51b9895c2-300x200.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>As a result, water from the surrounding area flows into the sudden low-pressure cavity that appears inside the mountain.<\/p>\n<p>Water in an area of high internal pressure (saturated state) flows out toward an area of no pressure (outward) because<\/p>\n<p>It's only natural, so it just keeps piling up.<\/p>\n<p>&nbsp;<\/p>\n<p>The water that accumulates in that collection well is drained through a drainage hole.<\/p>\n<p>If more water accumulates than is discharged, the well will become completely full of water. (Obviously, lol.)<\/p>\n<p>In that case, we might be forced to perform some extremely difficult drilling just to install drainage holes from other catch basins lol<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-6569\" src=\"https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2018\/04\/26bd696f5fc422da125dfe2010e9ccb7.jpg\" alt=\"Removal of Drilled Slime\" width=\"600\" height=\"400\" srcset=\"https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2018\/04\/26bd696f5fc422da125dfe2010e9ccb7.jpg 600w, https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2018\/04\/26bd696f5fc422da125dfe2010e9ccb7-300x200.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>The photo above shows the process of discharging the drilling slurry that accumulated inside the casing (at the bottom of the well) after drilling.<\/p>\n<p>The tube coming out of the right side of the body wrap is the drain hole. (I've got a Suipon in there, lol.)<\/p>\n<p>&nbsp;<\/p>\n<p>In addition to these, there are also horizontal boring projects directly into the mountain and drainage tunnel projects.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-4880\" src=\"https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2017\/10\/3f389988c751ad16169eb08486e52b73.jpg\" alt=\"Check Boring\" width=\"600\" height=\"460\" srcset=\"https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2017\/10\/3f389988c751ad16169eb08486e52b73.jpg 600w, https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2017\/10\/3f389988c751ad16169eb08486e52b73-300x230.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>For companies that carry out landslide prevention work, this is the most basic type of construction project.<\/p>\n<p>&nbsp;<\/p>\n<p>Why are we carrying out this kind of construction work?<\/p>\n<p>I think it's important to be fully aware of this, so please be sure to keep it in mind ^^<\/p>\n<p>&nbsp;<\/p>\n<p>See you later<\/p>\n<blockquote class=\"wp-embedded-content\" data-secret=\"Gz0n1qFezU\"><p><a href=\"https:\/\/norimen.net\/en\/anchor-underground-water-sand-blowup-4\/\">Measures to Prevent Sand Ejection Caused by Groundwater Pressure in Anchor Construction (Part 4)<\/a><\/p><\/blockquote>\n<p><iframe loading=\"lazy\" class=\"wp-embedded-content\" sandbox=\"allow-scripts\" security=\"restricted\" style=\"position: absolute; visibility: hidden;\" title=\"\u201cMeasures to Prevent Sand Blowing Caused by Groundwater Pressure in Anchor Work (Part 4)\u201d \u2014 Shin-Ent\u2019s Slope Management School\" src=\"https:\/\/norimen.net\/anchor-underground-water-sand-blowup-4\/embed\/#?secret=aA35cZEoin#?secret=Gz0n1qFezU\" data-secret=\"Gz0n1qFezU\" width=\"600\" height=\"338\" frameborder=\"0\" marginwidth=\"0\" marginheight=\"0\" scrolling=\"no\"><\/iframe><\/p>","protected":false},"excerpt":{"rendered":"<p>Hello, everyone. This is Enta. It\u2019s already December!! There\u2019s not much of the year left. Let\u2019s make sure to avoid accidents at all costs! Don\u2019t rush! Let\u2019s do our jobs with our usual calm attitude. Getting flustered won\u2019t do any of us any good, so let\u2019s all be extra careful ^^ But anyway, speaking of landslides\u2026<\/p>","protected":false},"author":2,"featured_media":48042,"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":[1886],"tags":[813,1227,5458,5459,5460],"class_list":["post-48046","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-glossary","tag-813","tag-1227","tag-5458","tag-5459","tag-5460"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.2 (Yoast SEO v28.2) - 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