Hermawan, Pandu (2025) Pemilihan Penanganan Masalah Pemampatan Dan Stabilitas Timbunan Berdasarkan Variasi Tinggi Timbunan Dan Ketebalan Lapisan Tanah Dasar Lunak Studi Kasus: Jalan Tol Lingkar Pekanbaru Sta 176+350 – Sta 178+300. Masters thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
Jalan Tol Trans Sumatera (JTTS) merupakan salah satu proyek infrastruktur yang sangat penting di Indonesia. Dimulai pada Tahun 2014 dengan tujuan menghubungkan berbagai provinsi di Pulau Sumatera mulai dari Bakauheni hingga Banda Aceh. Salah satu ruas utama JTTS adalah Jalan Tol Rengat - Pekanbaru, Ruas Jalan Lingkar Pekanbaru (Junction Pekanbaru – Bypass Pekanbaru) dengan rencana panjang penanganan kurang lebih 30 km. Ruas ini mulai dibangun pada Tahun 2024. Kondisi eksisting rencana trase jalan tol ini didominasi oleh perkebunan kelapa sawit dengan lapisan tanah lunak berupa tanah organik sampai dengan kedalaman 2,5 meter; lapisan di bawahnya terdiri dari pasir dengan konsistensi sedang hingga padat. Jalan Tol Rengat - Pekanbaru Ruas Jalan Lingkar Pekanbaru (Junction Pekanbaru – Bypass Pekanbaru) mempunyai beberapa rencana desain penanganan. Metode penanganan yang digunakan merupakan gabungan beberapa metode seperti Preloading, Replacement, dan Prefabricated Vertical Drain (PVD). Pada studi ini dilakukan perhitungan perencanaan alternatif dengan variasi replacement tanah dasar hingga ketebalan 0,5 m dan 1,0 m. Hasil studi menunjukkan bahwa desain penanganan yang paling optimal dari segi biaya adalah desain penangan tanpa replacement tanah dasar dengan perkuatan geotextile. Semakin tebal replacement tanah dasar yang dilakukan, semakin kecil pula pemampatan dan rate of settlement yang terjadi. Dalam hal perkuatan timbunan, semakin tebal replacement tanah dasar yang dilakukan, semakin sedikit jumlah perkuatan yang dibutuhkan. Ketebalan replacement tanah dasar juga mempengaruhi biaya pelaksanaan pekerjaan, semakin tebal replacement tanah dasar yang dilakukan, semakin tinggi biaya pelaksanaan pekerjaan.
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Trans Sumatra Toll Road (JTTS) is one of the most important infrastructure projects in Indonesia. It started in 2014 with the aim of connecting various provinces on the island of Sumatra from Bakauheni to Banda Aceh. One of the main sections of JTTS is the Rengat - Pekanbaru Toll Road, Pekanbaru Ring Road Section (Pekanbaru Junction - Pekanbaru Bypass) with a planned design length of approximately 30 km. This section began construction in 2024. The existing condition of the planned toll road route is dominated by oil palm plantations with a soft soil layer in the form of organic soil to a depth of 2.5 meters; the layer below consists of sand with medium to dense consistency. Rengat - Pekanbaru Toll Road Pekanbaru Ring Road (Pekanbaru Junction - Pekanbaru Bypass) has several handling design plans. The treatment method used is a combination of several methods such as Preloading, Replacement, and Prefabricated Vertical Drain (PVD). In this study, alternative planning designs were carried out with variations in subgrade replacement up to 0.5 m and 1.0 m thickness. The study results show that the most cost-optimal handling design is the handling design without subgrade replacement with geotextile reinforcement. The thicker the subgrade replacement, the smaller the compression and rate of settlement. In terms of embankment reinforcement, the thicker the subgrade replacement, the less the amount of reinforcement required. The thickness of subgrade replacement also affects the cost of the work, the thicker the subgrade replacement, the higher the cost of the work.
| Item Type: | Thesis (Masters) |
|---|---|
| Uncontrolled Keywords: | tanah lunak, tanah organik, soft soil, organic soil, replacement. |
| Subjects: | T Technology > TA Engineering (General). Civil engineering (General) T Technology > TA Engineering (General). Civil engineering (General) > TA455.S6 Soil (Materials of engineering and construction) |
| Divisions: | Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Civil Engineering > 22101-(S2) Master Thesis |
| Depositing User: | Pandu Hermawan |
| Date Deposited: | 24 Jan 2025 07:18 |
| Last Modified: | 24 Jan 2025 07:18 |
| URI: | http://repository.its.ac.id/id/eprint/116822 |
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