Studi perubahan parameter tanah terhadap stabilitas lereng dengan limit equilibrium method = Study on soil parameters changes to the slope stability with limit equilibrium method

Yulianti, Isti (2013) Studi perubahan parameter tanah terhadap stabilitas lereng dengan limit equilibrium method = Study on soil parameters changes to the slope stability with limit equilibrium method. Bachelor thesis, Universitas Pelita Harapan.

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Abstract

Peristiwa kelongsoran lereng banyak dijumpai di Indonesia. Kelongsoran lereng terjadi karena berkurangnya kuat geser tanah maupun bertambahnya tegangan geser tanah yang dibuthkan. Hal tersebut seringkali menimbulkan korban jiwa dan kerugian ekonomi. Oleh sebab itu, perlu dilakukan analisa terhadap kestabilan suatu lereng, agar dampak negatif tersebut dapat diminimalisasikan. Analisa stabilitas lereng dilakukan dengan beberapa metode yang umum digunakan, seperti: metode Simplified Bishop, metode Fellenius, dan metode Simplified Janbu. Perhitungan dilakukan dengan menggunakan program SvSlope2009 student version. Terdapat beberapa keadaan yang terjadi pada lereng untuk studi ini, diantaranya adalah lereng tanpa beban air eksternal, lereng dengan muka air tanah, lereng dengan beban air eksternal, lereng dengan efek rapid drawdown, variasi parameter kuat geser tanah serta variasi kemiringan lereng Nilai FS yang diperoleh dari analisa stabilitas lereng menunjukkan apakah lereng tersebut stabil atau tidak. Hasil dari ketiga metode tersebut akan dibandingkan dan diperoleh bahwa jenis tanah, kuat geser tanah, air dan tegangan efektif mempengaruhi kestabilan lereng Untuk lereng dengan muka air tanah serta terdapatnya efek rapid drawdown, hasil nilai FS yang diperoleh dari ketiga metode tersebut dapat digunakan. Namun, untuk lereng dengan beban air eksternal sebaiknya digunakan metode Simplified Bishop dan Simplified Janbu / Landslide are often found in Indonesia. Landslide occurred due to the reduced of soil shear strength or increased of soil shear stress that needeed. It is often caused lifes and economic losses. Therefore, it is necessary to analyze the stability of a slope, so that the negative impacts can be minimized. The slope stability analyzes performed by several commonly used methods, such as: Fellenius method, Simplified Bishop Method and Simplified Janbu method. Calculations are done by using SvSlope2009 student version program. There are some conditions that occurred on the slopes for this study, which are: slope without external water load, slope with groundwater, slope with external water load, slope with rapid drawdown effect, variations of soil shear strength parameters and variations of slope inclination. Factor of safety is obtained from the slope stability analysis indicates whether the slope is stable or not. The results of these three methods will be compared one another and concluded that type of soil, soil shear strength, water and effective stress affect the slope stability. For slopes with groundwater and presence of rapid drawdown effect, the result that obtained from the three methods can be used. However, for slopes with external water load better use the result from Simplified Bishop and Simplified Janbu method

Item Type: Thesis (Bachelor)
Creators:
CreatorsNIMEmail
Yulianti, IstiUNSPECIFIEDUNSPECIFIED
Contributors:
ContributionContributorsNIDN/NIDKEmail
Thesis advisorWidjajakusuma, JackUNSPECIFIEDUNSPECIFIED
Uncontrolled Keywords: stabilitas lereng; Limit Equilibrium Method; SvSlope2009 student version
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: University Subject > Current > Faculty/School - UPH Karawaci > Faculty of Science and Technology > Civil Engineering
Current > Faculty/School - UPH Karawaci > Faculty of Science and Technology > Civil Engineering
Depositing User: Ms Monica Putri Damayanti
Date Deposited: 21 Nov 2018 07:53
Last Modified: 27 Feb 2019 06:23
URI: http://repository.uph.edu/id/eprint/2145

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