Numerical simulation study on Reinforcement scheme optimization of goaf-side entry at isolated island coal face
According to control problems of surrounding rock at isolated island coal face, taking isolated island coal 1251 (3) face ventilation tunnel of PanSan mine as engineering background, this paper puts forward three reinforcement schemes based on the idea of turning later recovery to former reinforcement Simulation has been done on the character of surrounding rock stress and deformation distribution and supporting structure force of three different schemes by FLAC3D. Finally optimal scheme is the third scheme. The application result show that anchor-net-cable support combined with anchor grouting support has got a good effect. The large deformation of surrounding rock is controlled efficiently and tunnel surrounding rock stable is guaranteed. The study provides a basis for goaf-side entry surrounding rock control under similar conditions.
isolated island coal face goaf-side entry surrounding rock deformation numerical simulation.
Zha Wen-hua Hua Xin-zhu Liu Zcnghui
The MOE Key Laboratory of Coalmine Safety and High Efficiency Mining,Anhui University of Science and Technology ,Huainan 232001, China School of Energy and Safety, Anhui University of Science and Technology, Huainan 232001, China
国际会议
太原
英文
402-405
2011-02-26（万方平台首次上网日期，不代表论文的发表时间）