Fiantika, Thiya (2018) Analisis Probabilitas Keruntuhan pada Lereng Tanah Residual dengan Variasi Sudut Kemiringan Lereng. Sarjana thesis, Universitas Brawijaya.
Abstract
Lereng adalah bagian yang miring atau sisi yang landai pada sebuah bukit, gunung, perbukitan, ataupun pegunungan. Kestabilan lereng merupakan hal yang diutamakan dalam suatu konstruksi terutama untuk perencanaan konstruksi jalan raya. Untuk menentukan kestabilan dari lereng maka diperlukan suatu analisis yang menghasilkan angka keamanan dari lereng tersebut dengan menggunakan metode deterministik. Kestabilan lereng ditentukan dari parameter-parameter tanah antara lain sifat fisik tanah, sifat mekanik tanah, tinggi muka air tanah, struktur massa batuan, dan sebagainya. Akibat adanya ketidakpastian pada nilai parameter yang digunakan dalam desain lereng tersebut menyebabkan lereng menjadi tidak stabil sehingga diperlukan suatu konsep analisis probabilitas dalam menentukan kestabilan lereng. Analisis probabilitas merupakan cara untuk menentukan faktor keamanan dengan memperlakukan parameter masukkan sebagai variabel acak, kemudian faktor keamanan yang dihasilkan merupakan variabel acak juga. Pada proses ini parameter masukan berupa berat volume tanah (
English Abstract
Slope is (part of) the side of a hill or mountain. Slope stability became the main concern while working on a construction project, especially on road/highway project. To measure the stability of the slope, it requires an analysis that produce a save number of the slope that involve a deterministic method. Slope stability determined by soil parameters which include: physical & mechanical behavior of the soil, ground water level, rock mass structure, etc. Because there is an uncertainty on parameters value in the slope design, causing the slope vulnerable, it needs a concept such as probability analysis to find the stability of the slope. Probability analysis is a way to determine the safety factor by using parameters as a random variable, which the result of safety factor became a random variable as well. In this process the parameters used are: volume, cohesion, frictions angle and safety factor gained by using normal distribution. Probability analysis could be obtained by using Monte Carlo Simulation on Geostudio SLOPE/W 2018 software. In this analysis there are three trials conducted with various slope angle along with similar material, so the result would be comparable at which angle the slope stay stable. The soil data are taken from prior research located in Gunung Banyak, Batu, East Java. Analysis could be performed by calculating the safety factor and probability of failure on the real slope then changing the slope angle to analyzing the safety factor and probability of failure of the slope. The result from calculating safety factor using Geostudio SLOPE/W 2018 software shows 1,082 as the safety factor with 10,48 % of probability failure for real slope. For second trial with different angle of the slope based on height and weight comparison produce a safety factor value by 1,089 and 10,69 % probability failure. And last trial with different angle of the slope but without height and weight comparison produce a safety factor less than one, it shows 0,938 for the safety factor and 82,15 % probability failure. Height and weight comparison indicate the steepness of the slope. From this analysis, it can be concluded that the steeper the slope, the bigger probability of failure will occur.
| Item Type: | Thesis (Sarjana) |
|---|---|
| Identification Number: | SKR/FT/2018/318/051804188 |
| Uncontrolled Keywords: | angka keamanan, analisis probabilitas, simulasi Monte Carlo |
| Subjects: | 600 Technology (Applied sciences) > 624 Civil engineering > 624.1 Structural engineering and underground construction > 624.15 Foundation engineering and engineering geology > 624.151 Engineering geology |
| Divisions: | Fakultas Teknik > Teknik Sipil |
| Depositing User: | Budi Wahyono Wahyono |
| Date Deposited: | 26 Jun 2018 03:50 |
| Last Modified: | 21 Oct 2021 01:42 |
| URI: | http://repository.ub.ac.id/id/eprint/11587 |
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DAFTAR PUSTAKA.pdf Download (121kB) | Preview |
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1. SAMPUL - LEMBAR PERUNTUKAN.pdf Download (445kB) | Preview |
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2. KATA PENGANTAR.pdf Download (119kB) | Preview |
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3. DAFTAR ISI.pdf Download (16kB) | Preview |
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4. DAFTAR TABEL.pdf Download (9kB) | Preview |
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6. DAFTAR LAMPIRAN.pdf Download (8kB) | Preview |
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7. RINGKASAN.pdf Download (369kB) | Preview |
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8. SUMMARY.pdf Download (252kB) | Preview |
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