Slope stability analyses by circular failure chart and limit equilibrium methods: the inlet and outlet of diversion tunnel of Bolango Ulu Dam, Indonesia
نویسندگان
چکیده
The objective of this research is to evaluate the stability natural slopes at inlet and outlet portals Bolangu Ulu diversion tunnel, Gorontalo. were considered stable, therefore slope analyses not carried out previously in tunnel portal design. using Circular Failure Chart (CFC) Limit Equilibrium Methods (LEM). Input data for obtained from field mapping laboratory testing soil rock samples. results show that consist diorite residual soil. Both analysis methods yield nearly same results. section had factor safety (FOS) values 1.29 1.30 based on CFC method LEM, respectively, indicating a stable condition. However, FOS 1.01 1.07 critical suggest stabilization slopes, particularly section, required prevent failures under static earthquake loads.
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ژورنال
عنوان ژورنال: E3S web of conferences
سال: 2021
ISSN: ['2555-0403', '2267-1242']
DOI: https://doi.org/10.1051/e3sconf/202132501015