Applied research on the stability analysis of higher precipitous side slope using FLAC

Author

Zhang Zhiyu ; Luan Longfa ; Xie Jianbin

Author_Institution

Fac. of Land Resource Eng., Kunming Univ. of Sci. & Technol., Kunming, China

fYear

2011

fDate

22-24 April 2011

Firstpage

4817

Lastpage

4821

Abstract

In this Paper, the applicable conditions of Strength Reduction Method (SRM) and Limit Equilibrium Method (LEM) were studied. The stabilities for one side slope with the height of 300 meters under two different schemes of excavation were researched by using LEM and finite difference SRM severally. Dynamic response of this side slope under blasting vibration was also studied by FLAC numerical simulation. The research results show that the plastic failure and the plastic flow of side slope can be simulated more effectively and accurately by FLAC than by LEM; the mining blasting vibration in July 15 2010 has little influence on the stabilities of side slope, but this blasting would enlarge the instantaneous acceleration of the top of the side slope in a ratio of 10.8%.

Keywords

failure (mechanical); finite difference methods; geotechnical engineering; mechanical stability; mining industry; plastic flow; structural engineering; vibrations; FLAC numerical simulation; excavation; finite difference strength reduction method; limit equilibrium method; mining blasting vibration; plastic failure; plastic flow; precipitous side slope; stability analysis; Numerical simulation; Numerical stability; Plastics; Presses; Rail transportation; Stability analysis; Vibrations; Blasting Vibration; Dynamic Respons; FLAC; Higher Precipitous Side Slope; Stability Analysis;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Technology and Civil Engineering (ICETCE), 2011 International Conference on

Conference_Location

Lushan

Print_ISBN

978-1-4577-0289-1

Type

conf

DOI

10.1109/ICETCE.2011.5776265

Filename

5776265