Three dimensional slope stability analysis of open pit limestone mine in Rembang District, Central Java

[摘要] PT X is a limestone mine located in the district of Rembang, Central Java, which plans to expand and dig deeper. To ensure that the slope is stable, geotechnical study is needed. However, if it is done in 2 dimensional (2D) the result might not always be representative. This research was conducted to determine the stability of single slope using three dimensional limit equilibrium method (3D LEM). The data was collected by doing geotechnical mapping of the drill core sample and conducting laboratory test of rock samples, i.e. the test of physical and mechanical properties of rocks. The result shows that there is a significant difference between 2D and 3D FoS. The volume of sliding is also presented.

[发布机构] Mining Engineering Department Universitas Trisakti, Jalan Kyai Tapa No.1, Grogol, West Jakarta, Indonesia^1

[效力级别] 矿业工程

[关键词] 2;Dimensional;Geotechnical mapping;Geotechnical studies;Laboratory test;Limestone mines;Limit equilibrium methods;Physical and mechanical properties;Three-dimensional slope stability