{"id":55745,"date":"2025-09-18T23:00:10","date_gmt":"2025-09-18T14:00:10","guid":{"rendered":"https:\/\/norimen.net\/wordpress\/%e6%b3%95%e9%9d%a2%e5%b1%8b%e3%81%af%e7%9f%a5%e3%81%a3%e3%81%a6%e3%81%84%e3%81%a6%e6%ac%b2%e3%81%97%e3%81%84%e3%80%81%e7%8f%be%e5%a0%b4%e3%81%a7%e3%82%88%e3%81%8f%e4%bd%bf%e3%81%86%e7%b2%98%e7%9d%80\/"},"modified":"2026-05-16T16:11:10","modified_gmt":"2026-05-16T07:11:10","slug":"kohesi-phi-1","status":"publish","type":"post","link":"https:\/\/norimen.net\/id\/cohesion-phi-1\/","title":{"rendered":"Hal yang Harus Diketahui oleh Para Ahli Lereng: Pembahasan tentang Gaya Adhesi c dan Sudut Gesekan Internal \u03c6 yang Sering Digunakan di Lapangan (Bagian 1)"},"content":{"rendered":"

Halo semuanya.<\/p>\n

Ini Enta.<\/p>\n

Seperti yang sudah saya tulis beberapa hari yang lalu, daftar kontak di ponsel saya hilang, jadi saya tidak tahu nomor telepon hampir semua orang, hehe.<\/p>\n

Memang agak merepotkan, tapi saya harap Anda bisa mengirim SMS atau menelepon saya langsung.<\/p>\n

Terima kasih atas kerjasamanya.<\/p>\n

\"Kerusakan<\/p>\n

\n

Kembali ke topik utama<\/p>\n

 <\/p>\n

Ada yang namanya koefisien adhesi c dan sudut gesekan internal \u03c6, kan? Keduanya sering kita gunakan di bidang konstruksi lereng.<\/p>\n

Istilah ini sering muncul dalam dokumen perhitungan desain, dan juga sering dibicarakan saat berdiskusi dengan para perancang.<\/p>\n

Itu memang agak sulit dimengerti, ya w (saya rasa paman itu sedikit mengerti)<\/p>\n

Tapi kalau tahu hal itu, rasanya jadi sedikit bangga, sih w<\/p>\n

 <\/p>\n

Kali ini, saya ingin mencoba menjelaskan hal itu secara singkat.<\/p>\n

Namun, sebelum itu, Anda perlu memahami tentang tanah terlebih dahulu, jadi berikut ini penjelasan singkatnya.<\/p>\n

Kalau disuruh \u201cCeritakan lebih detail!\u201d, aku jadi bingung, jadi tolong ceritakan secara singkat saja, hahaha<\/p>\n

Kekuatan tanah adalah<\/h2>\n

\u201cTanah\u201d yang kami tangani di lapangan terdiri dari partikel tanah, udara, dan air dalam jumlah tak terhitung. (Saya rasa saya pernah menulis hal ini sebelumnya.)<\/p>\n

Secara gambaran, ini adalah kondisi di mana udara dan air masuk ke celah-celah di antara butiran-butiran tanah.<\/p>\n

\"Penampang
Program Pascasarjana Fakultas Teknik, Universitas Teknologi Nagoya
http:\/\/zhang.web.nitech.ac.jp\/research.html<\/figcaption><\/figure>\n

Namun, partikel-partikel tanah tersebut tidak terikat secara kuat satu sama lain; mereka hanya saling mengunci dan menopang, sehingga kurang stabil.<\/p>\n

Jika tanah itu ditarik, tanah itu akan hancur dengan mudah.<\/p>\n

Kekuatan tarik tanah hampir nol.<\/p>\n

Di sisi lain, jika ada barang yang diletakkan di atasnya, benda tersebut dapat menopangnya sampai batas tertentu.<\/p>\n

Ini berarti material tersebut tahan terhadap kompresi. Hal ini berkaitan dengan daya dukung tanah yang telah dibahas sebelumnya.<\/p>\n

Saat tanah runtuh<\/h2>\n

Ketika tanah dikompresi menggunakan pelat penekan, bukan berarti partikel-partikelnya itu sendiri hancur, melainkan,<\/p>\n

Tanah akan bergeser dan runtuh secara miring<\/p>\n

Inilah yang disebut \u201ckerusakan geser\u201d yang sering dibicarakan<\/p>\n

Dalam mempertimbangkan stabilitas lereng di lapangan, sangatlah penting untuk memahami \u201ckerusakan geser\u201d ini.<\/p>\n

\"Pelat<\/p>\n

Bagian bawah pelat penahan tekanan mengalami kerusakan geser sehingga menonjol ke atas.<\/p>\n

Uji Kekuatan Tanah<\/h2>\n

Uji kompresi satu sumbu dan tiga sumbu merupakan uji yang umum digunakan untuk menyelidiki kondisi kerusakan akibat geser. Uji ini sering digunakan di lapangan, misalnya untuk pengujian perbaikan tanah dengan metode kolom.<\/p>\n

Dalam pengujian di lapangan, kita sering menggunakan \u201ckekuatan tekan biasa\u201d, bukan? Hal ini pada dasarnya karena banyaknya struktur beton.<\/p>\n

 <\/p>\n

Namun, dalam kasus tanah, yang kita butuhkan adalah kekuatan saat terjadi kegagalan geser, yaitu kekuatan geser.<\/p>\n

Artinya,Kekuatan geser adalah kekuatan sebenarnya dari tanah<\/strong><\/span>Jadi, begitulah.
\n\"Kerusakan<\/p>\n

Misalkan ada gunung seperti ini.<\/p>\n

Saat gunung ini longsor, pemandangannya akan terlihat seperti gambar di bawah ini. (Pemandangan yang sering kita lihat, bukan?)<\/p>\n

\"Kerusakan<\/p>\n

Yang biasa disebut gumpalan tanah yang bergerak dan gumpalan tanah yang tidak bergerak<\/p>\n

Artinya, kalau kekuatan gesernya tinggi, maka tidak akan tergelincir. Begitu, ya? w<\/p>\n

 <\/p>\n

Garis putih: kekuatan geser<\/p>\n

Garis merah: garis geser<\/p>\n

Garis hitam: tegangan geser<\/p>\n

 <\/p>\n

Untuk mengukur kekuatan ini, terdapat pengujian seperti yang tercantum di bawah ini.<\/p>\n

\"Daftar<\/p>\n

 <\/p>\n

Sekian untuk kali ini.<\/p>\n

Pada bagian berikutnya, kita akan membahas ujian secara lebih rinci.<\/p>\n

 <\/p>\n

Sampai jumpa lagi.<\/p>\n

 <\/p>","protected":false},"excerpt":{"rendered":"

Halo semuanya. Ini Enta. Seperti yang sudah saya tulis beberapa hari yang lalu, daftar kontak di ponsel saya hilang, jadi saya tidak tahu nomor telepon sebagian besar dari kalian (haha). Memang merepotkan, tapi tolong kirim SMS atau telepon langsung saja ke saya. Terima kasih atas pengertiannya. Kembali ke topik utama... Kami\u2026<\/p>","protected":false},"author":2,"featured_media":55746,"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":[34,38],"tags":[],"class_list":["post-55745","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-slope-work","category-construction-management"],"acf":[],"yoast_head":"\n\u6cd5\u9762\u5c4b\u306f\u77e5\u3063\u3066\u3044\u3066\u6b32\u3057\u3044\u3001\u73fe\u5834\u3067\u3088\u304f\u4f7f\u3046\u7c98\u7740\u529b\uff43\u3068\u5185\u90e8\u6469\u64e6\u89d2\u03c6\u306e\u8a71\u3057\uff08\u305d\u306e1\uff09 - 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