Geotechnical study for optimizing the slope design of a deep open-pit mine,India |
| |
Authors: | V K Singh J K Singh A Kumar |
| |
Affiliation: | (1) Slope Stability Department, Central Mining Research Institute, Dhanbad 826 001, India |
| |
Abstract: | The study was undertaken to determine the optimal overall slope angle of a lead–zinc mine, which could extend down to a depth
of 170 m. Detailed geotechnical investigations were conducted, including geotechnical mapping of existing benches to establish
the geometrical and mechanical properties of the discontinuities, the drilling of eight boreholes and the establishment of
the physico-mechanical properties of the intact rock. Based on these data, limit equilibrium and numerical simulation techniques
were applied to assess the stability of the slopes and determine an optimal slope angle. It was concluded that the overall
foot-wall and hanging-wall slopes should be 42 and 48° respectively.
|
| |
Keywords: | Open-pit mining Rock excavation Rockslope stability Safety analysis Sensitivity analysis |
本文献已被 SpringerLink 等数据库收录! |