{"id":50011,"date":"2023-10-30T08:00:43","date_gmt":"2023-10-29T23:00:43","guid":{"rendered":"https:\/\/norimen.net\/wordpress\/?p=50011"},"modified":"2026-05-16T14:16:55","modified_gmt":"2026-05-16T05:16:55","slug":"water-drain-boring-angle-2","status":"publish","type":"post","link":"https:\/\/norimen.net\/en\/water-drain-boring-angle-2\/","title":{"rendered":"What is the concept of angle in dewatering drilling?"},"content":{"rendered":"<p>Hello, everyone.<\/p>\n<p>This is Enta.<\/p>\n<p>I heard that the drainage well project I drilled and supervised last month has been completed lol<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-50012\" src=\"https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2023\/10\/551c3d01c936777a1bc79be317feef7a.jpg\" alt=\"Drainage Boring Worker\" width=\"600\" height=\"400\" srcset=\"https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2023\/10\/551c3d01c936777a1bc79be317feef7a.jpg 600w, https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2023\/10\/551c3d01c936777a1bc79be317feef7a-300x200.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>The final result looks really great\u2014it's beautiful, isn't it!<\/p>\n<p>&nbsp;<\/p>\n<p>Each borehole is just under 30 meters long, and the drilling angle is 7 degrees.<\/p>\n<p>I always think that there\u2019s really no need to frame it that way.<\/p>\n<p>Wouldn't about 3 degrees be enough, even at the most?<\/p>\n<p>It\u2019s true that various sources list the range as 5 to 10 degrees, so I suppose the designer had no choice but to follow that.<\/p>\n<p>But then again, why did they set it to 7 degrees, then??<\/p>\n<p>I don't think there's any clear reason for that to happen.<\/p>\n<p>&nbsp;<\/p>\n<p>When the drilling angle is set to horizontal (zero) and a 30-meter borehole is drilled,<\/p>\n<p>If the borehole is drilled at a 7-degree upward angle, the elevation of the 30-meter tip will be approximately +3.7 meters.<\/p>\n<p><strong><span style=\"color: #0000ff;\">(30 m \u00d7 tan 7\u00b0) = 3.68 m<\/span><\/strong><\/p>\n<p>&nbsp;<\/p>\n<p>Do we really need to raise it by 3.7 meters??<\/p>\n<p>In that case, wouldn't it be better to set it to about 3 degrees and drain the water from a lower level?<\/p>\n<p>That's what I think.<\/p>\n<p>At 3 degrees, it's approximately 1.6 m<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-50013\" src=\"https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2023\/10\/39ddc80352050f8578006e8f8858111e.jpg\" alt=\"Drainage Boring Worker\" width=\"600\" height=\"400\" srcset=\"https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2023\/10\/39ddc80352050f8578006e8f8858111e.jpg 600w, https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2023\/10\/39ddc80352050f8578006e8f8858111e-300x200.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>When the soil reaches saturation, water gradually accumulates from below.<\/p>\n<p>When it comes to the concept of creating a slope, many people assume that rainwater flows down from above into the natural ground and then enters the pipe from above.<\/p>\n<p>&nbsp;<\/p>\n<p>Since water flows in from beneath the drainpipe,<\/p>\n<p>Based on experience, dewatering drilling operations should, if possible,<span style=\"font-size: 120%;\"><strong><span style=\"color: #ff0000;\">A multi-stage approach is more effective<\/span><\/strong><\/span>I'm wondering, \"So what?\"<\/p>\n<p>A multi-tiered design, like a catch basin, is the most ideal.<\/p>\n<p>Water flows even without an incline.<\/p>\n<p>&nbsp;<\/p>\n<p>I don't think there's a problem as long as the angle is between zero and 3 degrees, and I'm wondering if there might even be a way to drain water downward physically.<\/p>\n<p>In the case of downward flow, can the degree of saturation of the native soil serve as a reference point? (If water comes out near the mouth, that\u2019s where the water is currently located.)<\/p>\n<p>Well, I\u2019d like to come up with new construction methods that challenge current conventions and put them into practice.<\/p>\n<p>Other than that, it's just the old literature getting in the way, lol.<\/p>\n<p>&nbsp;<\/p>\n<p>See you later.<\/p>","protected":false},"excerpt":{"rendered":"<p>Hello, everyone. This is Enta. I heard that the drainage borehole project I drilled and supervised last month has been completed lol. The final result looks really great\u2014it\u2019s beautiful, isn\u2019t it!   Each borehole is just under 30 meters long, and the drilling angle is 7 degrees. I always think to myself, when it comes to angled drilling\u2026<\/p>","protected":false},"author":2,"featured_media":45500,"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":[90],"tags":[804,1067,1227,5929],"class_list":["post-50011","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-drain-boring","tag-804","tag-1067","tag-1227","tag-5929"],"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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