APRI NOMI HELDO, NIM. 112022014 (2026) ANALISA STABILITAS LERENG GALIAN DI LOKASI PEMBORAN P.14 DESA BENUANG KABUPATEN PALI. Skripsi thesis, Universitas Muhammadiyah Palembang.

	Text 112022014_BAB I_DAFTAR PUSTAKA.pdf - Published Version Download (1MB)
	Text 112022014_BAB II.pdf - Published Version Restricted to Repository staff only Download (478kB)
	Text 112022014_BAB III.pdf - Published Version Restricted to Repository staff only Download (844kB)
	Text 112022014_BAB IV.pdf - Published Version Restricted to Repository staff only Download (1MB)
	Text 112022014_BAB V.pdf - Published Version Restricted to Repository staff only Download (137kB)
	Text 112022014_DAFTAR PUSTAKA.pdf - Published Version Restricted to Repository staff only Download (125kB)
	Text 112022014_LAMPIRAN.pdf - Published Version Restricted to Repository staff only Download (503kB)
	Text 112022014_Cover_sampai_Lampiran.pdf - Published Version Restricted to Repository staff only Download (3MB)

Abstract

Kegiatan penggalian pada lokasi pemboran minyak dapat menyebabkan perubahan kondisi tegangan tanah yang berpotensi menurunkan stabilitas lereng dan meningkatkan risiko terjadinya longsor. Oleh karena itu, diperlukan analisis stabilitas lereng untuk mengetahui tingkat keamanan lereng serta mengevaluasi efektivitas metode perkuatan yang dapat diterapkan. Penelitian ini bertujuan untuk menganalisis kondisi geoteknik lereng galian di lokasi pemboran P.14 Desa Benuang, Kabupaten PALI, menentukan nilai faktor keamanan (Safety Factor) pada kondisi tanpa perkuatan maupun dengan perkuatan, serta memberikan rekomendasi teknis untuk meningkatkan stabilitas lereng. Metode penelitian menggunakan pendekatan kuantitatif dengan analisis numerik berbasis Finite Element Method (FEM) menggunakan perangkat lunak PLAXIS 2D V24. Model material tanah yang digunakan adalah Hardening Soil Model yang mampu merepresentasikan perilaku tanah secara nonlinier. Data yang digunakan merupakan data sekunder berupa hasil penyelidikan tanah melalui pengujian Standard Penetration Test (SPT), Cone Penetration Test (CPT), serta data parameter tanah yang meliputi berat volume tanah, kohesi, sudut geser dalam, modulus elastisitas, rasio Poisson, dan koefisien permeabilitas. Analisis dilakukan pada kondisi lereng eksisting hingga kedalaman galian 3,78 meter dengan empat skenario, yaitu tanpa perkuatan, menggunakan geogrid, menggunakan geotextile, serta kombinasi geogrid dan geotextile. Hasil analisis menunjukkan bahwa pekerjaan galian menyebabkan penurunan nilai faktor keamanan lereng sehingga diperlukan sistem perkuatan untuk meningkatkan kestabilannya. Penggunaan geogrid maupun geotextilel mampu meningkatkan nilai faktor keamanan dibandingkan kondisi tanpa perkuatan, sedangkan kombinasi geogrid dan geotextile memberikan peningkatan stabilitas yang paling baik. Dengan demikian, kombinasi kedua material tersebut direkomendasikan sebagai alternatif perkuatan yang efektif untuk meminimalkan potensi kelongsoran pada lereng galian di lokasi penelitian. Excavation activities at oil drilling sites can change the stress conditions of the soil, which could reduce slope stability and increase the risk of landslides. Therefore, slope stability analysis is needed to understand how safe the slope is and to evaluate the effectiveness of reinforcement methods that can be applied. This study aims to analyze the geotechnical conditions of the excavation slope at the P.14 drilling site in Benuang Village, PALI Regency, determine the Safety Factor values both without and with reinforcement, and provide technical recommendations to improve slope stability. The research uses a quantitative approach with numerical analysis based on the Finite Element Method (FEM) using PLAXIS 2D V24 software. The soil material model used is the Hardening Soil Model, which can represent the nonlinear behavior of soil. The data used is secondary data in the form of soil investigation results through Standard Penetration Test (SPT), Cone Penetration Test (CPT), as well as soil parameter data including soil unit weight, cohesion, internal friction angle, modulus of elasticity, Poisson's ratio, and permeability coefficient. The analysis was carried out on the existing slope conditions down to an excavation depth of 3.78 meters with four scenarios: without reinforcement, using geogrid, using geotextile, and a combination of geogrid and geotextile. The analysis results show that excavation work causes a decrease in the slope safety factor, so a reinforcement system is needed to improve its stability. Using either geogrid or geotextile can increase the safety factor compared to no reinforcement, while the combination of geogrid and geotextile provides the best stability improvement. Thus, the combination of these two materials is recommended as an effective reinforcement alternative to minimize the potential for landslides on excavation slopes at the research site.

Item Type:	Thesis (Skripsi)
Additional Information:	Pembimbing : 1. Muhammad Arfan, S.T., M.T. 2. Marice Agustini, S.T., M.T.
Uncontrolled Keywords:	Kata kunci: Stabilitas Lereng, Safety Factor, PLAXIS 2D, Finite Element Method, Hardening Soil, Geotextile, Geogrid. Keywords: Slope Stability, Safety Factor, PLAXIS 2D, Finite Element Method, Hardening Soil Model, Geotextile, Geogrid.
Subjects:	Teknik Sipil > geologi teknis (untuk teknik sipil)
Depositing User:	Mahasiswa Fakultas Teknik
Date Deposited:	07 Sep 2026 01:33
Last Modified:	07 Sep 2026 01:33
URI:	http://repository.um-palembang.ac.id/id/eprint/37232

Actions (login required)

View Item