摘要
告成煤矿25变电所同时处于F141、F135正断层中间,在受到构造影响的同时,还受到其附近的13211辅助巷掘进影响,针对以上条件研究了构造应力场以及巷道开掘等对其围岩稳定性的影响。13211工作面开挖后,变电所塑性区明显增大,顶、底板浅部不同深度围岩体均出现剪切破坏区域,顶、底板变形明显,两帮变形较小。
Gaocheng coal mine 25 substation in the middle of F141 fault and F135 normal fault, while under the influence of structure,it is affected by its auxiliary lane tunneling nearby,studied the factors of the stability of surrounding rock of roadway including the tectonic stress field and cutting etc. After excavation of 13211 face,substation plastic zone increases,roof and floor rock of different depth shallow shear failure was observed in all areas. The roof and floor have obvious deformation,both sides have less deformation.
出处
《煤炭技术》
CAS
北大核心
2016年第6期85-87,共3页
Coal Technology
关键词
构造应力场
采动
断层
数值模拟
tectonic stree field
mining
fault
numerical simulation
