{"id":49237,"date":"2023-06-13T08:00:00","date_gmt":"2023-06-12T23:00:00","guid":{"rendered":"https:\/\/norimen.net\/wordpress\/?p=49237"},"modified":"2026-05-16T13:53:42","modified_gmt":"2026-05-16T04:53:42","slug":"surface-tension-capillary-action-2","status":"publish","type":"post","link":"https:\/\/norimen.net\/en\/surface-tension-capillary\/","title":{"rendered":"Surface Tension and Capillary Action"},"content":{"rendered":"<p>Hello, everyone<\/p>\n<p>This is Enta.<\/p>\n<p>I've got a lot of business trips this week, lol.<\/p>\n<p>I'll be in Tokyo on Thursday and Friday, so please take care of me (what's that supposed to mean, lol).<\/p>\n<hr \/>\n<p>But that's beside the point.<\/p>\n<p>&nbsp;<\/p>\n<p>Have you heard of capillary action?<\/p>\n<p><span style=\"text-decoration: underline;\"><span style=\"font-size: 18px; color: #0000ff;\"><a style=\"color: #0000ff;\" href=\"https:\/\/ja.wikipedia.org\/wiki\/%E6%AF%9B%E7%B4%B0%E7%AE%A1%E7%8F%BE%E8%B1%A1\" target=\"_blank\" rel=\"noopener\"><strong>Capillary Action Wiki<\/strong><\/a><\/span><\/span><\/p>\n<p>That's the point.<\/p>\n<p>https:\/\/www.youtube.com\/watch?v=vkK6_ErzbZU<\/p>\n<p>This phenomenon is commonly observed on slopes.<\/p>\n<p>Water is still seeping out even though grout has been injected after drilling for rock bolts and anchors.<\/p>\n<p>The cause is capillary action.<\/p>\n<p><img decoding=\"async\" class=\"alignleft\" src=\"http:\/\/stat.ameba.jp\/user_images\/20160919\/21\/enta-d\/01\/0c\/j\/o0540046013752532055.jpg?caw=800\" alt=\"Capillary Action_Anchor Method\" border=\"0\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>There is a water hose running underneath the PC steel strands shown in this photo.<\/p>\n<p>This is because water is still flowing uncontrollably even after the concrete has been poured, so<\/p>\n<p>I'm catching it with a hose.<\/p>\n<p>This is,<strong><span style=\"font-size: medium;\"><span style=\"color: #0000ff;\">The areas where the grout adheres to the surrounding rock after injection<\/span><\/span><\/strong>The surface tension of the spring water and the surface tension of the grout, and<\/p>\n<p>It rises due to capillary action. (It is drawn up.)<\/p>\n<p>The narrower the gap, the better it sucks it up!<\/p>\n<p>Furthermore, the fact that water is coming out means that the internal pressure is rising, and<\/p>\n<p>Since they're already trying to get out, I think they'll keep coming out one after another.<\/p>\n<p><img decoding=\"async\" class=\"alignleft\" src=\"http:\/\/stat.ameba.jp\/user_images\/20160919\/21\/enta-d\/c5\/e6\/j\/o0491026913752549647.jpg?caw=800\" alt=\"Surface Tension and Capillary Action\" border=\"0\" \/><\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n<p>People often tell me to stop doing this, but,<span style=\"font-size: 24px;\"><strong><span style=\"color: #ff0000;\">I can't stop.<\/span><\/strong><\/span><\/p>\n<p>That means the water flow has changed as a result of the drilling.<\/p>\n<p>From a geological standpoint, it\u2019s safer to let the water flow out rather than stop it, as this helps maintain an unsaturated state.<\/p>\n<p>If there's a lot of water, it looks better to connect a hose and drain it.<\/p>\n<p>If possible, I think it would be better to install drainage boreholes, as they allow for more efficient water drainage.<\/p>\n<p>&nbsp;<\/p>\n<p>By the way, there are times when they suddenly appear\u2014several years after ground anchor installation or rebar insertion\u2014due to heavy rain or earthquakes!<\/p>\n<p>This is also just a change in the watercourse; as far as the mountain is concerned, the water is simply flowing from a place where it tends to flow easily.<\/p>\n<p>We can't stop it, but there's a good chance the situation will change again if we carry out drainage drilling or similar work.<\/p>\n<p>&nbsp;<\/p>\n<p>See you later.<\/p>","protected":false},"excerpt":{"rendered":"<p>Hi everyone, it\u2019s Enta. I\u2019ve got a lot of business trips this week, lol. I\u2019ll be in Tokyo on Thursday and Friday, so please take care of things while I\u2019m away (what\u2019s that supposed to mean, lol?). Anyway, have you heard of capillary action? It\u2019s the \u201cCapillary Action Wiki.\u201d https:\/\/www.yout\u2026<\/p>","protected":false},"author":2,"featured_media":2678,"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":[28,30,1],"tags":[214,215,1596,5743],"class_list":["post-49237","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ground-anchor","category-lock-bolt","category-others","tag-214","tag-215","tag-1596","tag-5743"],"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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