黑龙江科技学院学报2011，Vol.21Issue(6)：450-453,4.
基于地应力转移的拱形围岩稳定性
Study on stability of arch-shaped surrounding rock with ground stress transfer
摘要
Abstract
Aimed at identifying the stress distribution of surrounding rock marked by the method of top-coal caving mining,this paper describe the use of ANSYS to study on the rationality of arch-shaped surrounding rock existence and analyze the stress field around the stope,building on 40301 coal mining face in Dafo Temple Mine and perfect elasto-plastic model and Drucker-Prager criterion.The results show that the stress ahead the coal mining face tend to increases with the processing of excavation and the distance between the place of stress peak and the coal mining face increases with the decrease in the arch-shaped surrounding rock＇s depth-span ratio.关键词
围岩拱形/高跨比/ANSYSKey words
arch-shaped surrounding rock/depth-span ratio/ANSYS分类
矿业与冶金引用本文复制引用
杨鑫,李玉寿,刘卫群..基于地应力转移的拱形围岩稳定性[J].黑龙江科技学院学报,2011,21(6):450-453,4.基金项目
国家重点基础研究发展计划（973计划）项目 （）
国家自然科学基金项目 （）
