煤矿安全2017，Vol.48Issue(5)：202-205,4.DOI:10.13347/j.cnki.mkaq.2017.05.056
基于围岩变形破坏特征的煤矿地应力场主应力方向预测方法
Prediction Method for Principal Stress Direction of In-situ Stress Field Based on Deformation and Failure Characteristics of Surrounding Rock in Coal Mine
摘要
Abstract
The main stress direction of the in-situ stress field is an important influence factor on dominant development orientation of coal seam permeability,and it provides theoretical guidance for the design of the gas drainage engineering and the layout of the coalbed methane (CBM) well.The relationship between the characteristics of roadway failure and the type of in-situ stress field in coal mine,and the relationship between the characteristics of stress trace and the maximum horizontal principal stress direction are revealed,then the prediction method for the principal stress direction of the in-situ stress field based on failure characteristics of surrounding rock in coal mine is given.The prediction method has been applied in Guhanshan Coal Mine:the type of in-situ stress field is σH＞σv＞σh and the direction of the maximum principal stress of the in-situ stress field is NE.And the effectiveness of prediction method is confirmed by in-situ stress test result.关键词
安全工程/巷道变形破坏/应力痕迹/地应力场类型/最大主应力方向Key words
safety engineering/roadway deformation damage/stress trace/type of in-situ stress field/direction of maximum principal stress分类
矿业与冶金引用本文复制引用
关金锋,崔洪庆,王雨婷..基于围岩变形破坏特征的煤矿地应力场主应力方向预测方法[J].煤矿安全,2017,48(5):202-205,4.基金项目
国家自然科学基金资助项目(41372160) （41372160）
贵州省重点学科资助项目(ZDXK[2016]13) （ZDXK[2016]13）
贵州联合基金资助项目(LH字[2016]7051) （LH字[2016]7051）
