Research on control of tectonic stress field evolution for mining dynamic disaster
Fuxin basin is a J3-K1 fault basin.Coal and gas outburst,rock burst and mining seism are frequent during mining in Fuxin basin.Mining dynamic disaster is the two stress field interactional result.The heterogeneous of mining dynamic phenomenon at time,space and strengthen lies on the state of stress field in crust.According the analysis of evolution of tectonic stress field,the stress state and movement mode of geological structure are discussed.Research shows that most faults experience different mechanics process and movement characteristic during the evolution process of tectonic stress field.In Fuxin basin,the stress state of NNE and near SN strike faults has not changed at two evolution stages and compressed to thrust since the basins forming.NNW strike faults thrust instead of left lateral strike slide.NE strike faults still contains right lateral strike slide.NWW strike faults are still strike slide but its the orientation changed from left lateral to right lateral.NNE and near SN strike structure is prone to occur mining dynamic disaster because of concentrated stress,low penetrability and good gas storage condition.Then NWW strike structure is on the contrary.The danger of NE and NW is between of them.The evolution of tectonic stress field controlled the mining dynamic disaster.
Tectonic stress field Fault Stress state Evolution Mining dynamic disaster Fuxin basin
Han Jun Zhang Hongwei Li Ge
College of Resource and Environment Engineering,Liaoning Technical University,Fuxin 123000,China Wulong coal mine,Fuxin Mining Group,Fuxin 123000,China
国际会议
The 2007 International Conference on Mine Hazards Prevention and Control(2007矿山灾害预防与控制国际学术会议)
青岛
英文
342-346
2007-10-17（万方平台首次上网日期，不代表论文的发表时间）