{"id":41335,"date":"2020-03-10T08:00:06","date_gmt":"2020-03-09T23:00:06","guid":{"rendered":"https:\/\/norimen.net\/wordpress\/?p=41335"},"modified":"2026-05-17T13:21:14","modified_gmt":"2026-05-17T04:21:14","slug":"batas-latihan-musim-semi-bagian-2","status":"publish","type":"post","link":"https:\/\/norimen.net\/id\/spring-drill-limit-part2\/","title":{"rendered":"Batas Pengeboran dengan Bor Pegas (Bagian 2) | Lanjutan Verifikasi"},"content":{"rendered":"<p>Halo semuanya.<\/p>\n<p>Ini Enta.<\/p>\n<p>Soal pengeboran dengan bor pegas yang saya posting beberapa hari lalu, ternyata berhasil juga, hehe.<\/p>\n<div class=\"linkcard\"><div class=\"lkc-internal-wrap\"><div class=\"lkc-unlink\"><div class=\"lkc-card\"><div class=\"lkc-info\"><div class=\"lkc-favicon\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/www.google.com\/s2\/favicons?domain=norimen.net\" alt=\"\" width=\"16\" height=\"16\" \/><\/div><div class=\"lkc-domain\">Kursus Pengelolaan Lereng dari Shin-Enta<\/div><\/div><div class=\"lkc-content\"><div class=\"lkc-title\">Kursus Pengelolaan Lereng dari Shin-Enta<\/div><div class=\"lkc-date\">\ud83d\udd52\ufe0f<\/div><div class=\"lkc-excerpt\">Bagi Anda yang benar-benar ingin mengetahui tentang lereng!<\/div><\/div><div class=\"clear\"><\/div><\/div><\/div><\/div><\/div>\n<p>Pengeboran sedalam 17 m pada tanah berpasir.<\/p>\n<p>Diameter lubang bor \u03c6115<\/p>\n<p>Ternyata bisa diselesaikan dengan mudah. (Ada triknya, sih w)<\/p>\n<p>Yah, mungkin karena sudut pengeboran kali ini vertikal 90 derajat, jadi mungkin prosesnya lebih mudah dari yang saya duga.<\/p>\n<p>&nbsp;<\/p>\n<p>Bagian yang sulit kali ini adalah adanya lapisan lempung setebal sekitar 2 meter pada kedalaman sekitar 8 meter, dan lapisan itu ternyata cukup keras.<\/p>\n<p>Setelah melewati bagian ini, kita akan kembali memasuki tanah berpasir, namun kali ini arus baliknya sangat kuat sehingga pasir langsung mengalir masuk ke dalam batang dalam.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-41337\" src=\"https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2020\/03\/2020-03-05-14.51.59.jpg\" alt=\"lapisan pasir\" width=\"600\" height=\"450\" srcset=\"https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2020\/03\/2020-03-05-14.51.59.jpg 600w, https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2020\/03\/2020-03-05-14.51.59-300x225.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>Lapisannya sangat lunak dan rapuh, sampai-sampai saya bertanya-tanya, \u201cKe mana sih nilai N bagian penahan itu?\u201d w<\/p>\n<p>Jika air dimatikan bahkan hanya selama satu menit, saluran langsung tersumbat. Selain itu, air juga masuk ke celah antara bagian luar dan bagian dalam, sehingga tidak bisa keluar lagi. (Awalnya)<\/p>\n<p>Selain itu, karena air bor juga tidak mengalir ke atas, kami mengalami kesulitan yang sangat besar.<\/p>\n<p>Terutama untuk dua batang pertama, saya harus mengeluarkan semua lapisan dalam, lalu memasukkannya kembali, dan mengulangi proses tersebut berulang kali.<\/p>\n<p>Ini bisa dilakukan karena panjangnya masih sekitar 17 meter, kan? Kalau sudah lebih dari 30 meter, pasti benar-benar bikin pusing.<\/p>\n<p>&nbsp;<\/p>\n<p>Kali ini, karena tekanan dalam yang lebih tinggi dari yang diperkirakan dan arus balik pasir yang sangat parah, kami mengalami fenomena di mana jika batang bagian dalam ditarik keluar, tanah akan terbenam sekitar 2 meter.<\/p>\n<p>Oleh karena itu, terjadi situasi di mana badan jangkar tidak dapat dimasukkan setelah injeksi semen cair.<\/p>\n<p>Tongkat pengukur pun hanya bisa masuk sejauh 15 m dari total 17 m.<\/p>\n<p>Oleh karena itu, terpaksa kami melakukan injeksi menggunakan batang dalam. (Air pemboran terus dialirkan.)<\/p>\n<p>Semen cair disuntikkan tanpa mencabut batang dalam terlebih dahulu.<\/p>\n<p>Dengan demikian, tekanan internal dapat dikendalikan dengan memanfaatkan berat campuran semen.<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-41338\" src=\"https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2020\/03\/2020-03-09-13.58.55.jpg\" alt=\"Injeksi grout\" width=\"600\" height=\"450\" srcset=\"https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2020\/03\/2020-03-09-13.58.55.jpg 600w, https:\/\/norimen.net\/wordpress\/wp-content\/uploads\/2020\/03\/2020-03-09-13.58.55-300x225.jpg 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<p>Namun, sambil mengalirkan air, kami juga mengalirkan udara dengan kuat untuk menghilangkan pasir di dalam lubang sebanyak mungkin.<\/p>\n<p>Setelah itu, selang diganti dengan cepat, lalu campuran semen disuntikkan dari ujung batang dalam untuk menggantikannya!<\/p>\n<p>Segera setelah kami memastikan adanya luapan susu semen, kami langsung melakukan pemulihan batang bagian dalam.<\/p>\n<p>Meskipun ini cara yang agak unik, ini tetap merupakan salah satu metode pemasangan. (Memang bisa juga menggunakan bit Kronen, tapi masalah biayanya.)<\/p>\n<p>&nbsp;<\/p>\n<p>Karena kekuatan strukturnya telah teruji dengan baik menggunakan campuran semen tersebut, saya rasa tidak akan ada masalah asalkan gesekan pada lapisan tanah penopang dapat diatasi.<\/p>\n<p>Ada sedikit trik dalam cara menyuntikkannya, tapi itu akan kita bahas lain kali.<\/p>\n<p>&nbsp;<\/p>\n<p>Yang paling memuaskan kali ini adalah bahwa kami berhasil mengebor lubang dengan panjang seperti ini menggunakan bor pegas.<\/p>\n<p>Dengan mengetahui batasan mesin bor ini, sepertinya kita bisa menggunakannya lagi pada proyek berikutnya.<\/p>\n<p>&nbsp;<\/p>\n<p>Sampai jumpa lagi.<\/p>","protected":false},"excerpt":{"rendered":"<p>Halo semuanya. Ini Enta. Mengenai pemboran dengan Spring Drill yang saya posting beberapa hari lalu, ternyata berhasil juga, hehe. Ini adalah pemboran sedalam 17 m pada tanah berpasir. Diameter lubang bor \u03c6115. Ternyata berjalan lancar tanpa hambatan. (Ada triknya, hehe.) Yah, karena sudut pemboran kali ini vertikal 90 derajat, jadi\u2026<\/p>","protected":false},"author":2,"featured_media":1505,"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":[1],"tags":[48,49,169,1589,1654,1788,2279],"class_list":["post-41335","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-others","tag-48","tag-49","tag-169","tag-1589","tag-n","tag-1788","tag-2279"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.4 (Yoast SEO v28.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ 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