Research on Faults Activity and Mining Dynamic Phenomenon
The accuracy and reliability of mining dynamic phenomenon prediction depend on the research level of regional tectonic stress field and active fault basically. Double shear friction experiments of sandstone have been made, and its slide criterion has been suggested considering the viewing of engineering. The geology structural model is built and tectonic stress field is made a back-analysis by applying finite element method. The calculating results fit with the analysis result of earthquakes mechanism and the distribution characteristic of the measurements. The high stress regional field locates discontinuous zone of Ⅰ level faults and is corresponding to underground earthquakes scene. From then it is certain that tectonic stress is the major origin and necessary condition of mine earthquakes. From the point of Coulomb Criterion and the result of Byerlee experiment, the relation between regional stress and faults activity has been discussed. It is believed that Beipiao fault has a dominate effect on other sub faults and tectonic stress area and is dynamical source of dynamic phenomena in the Beipiao mines.
Song Weihua Zhang Hongwei
College of Resource and Environment Engineering, Liaoning Technical University, Fuxin, China Henan Shenhuo Group Co., Ltd, Yongcheng, China
国际会议
International Mining Forum 2010(2010年国际采矿论坛 IMF 2010)
合肥
英文
96-99
2010-09-20（万方平台首次上网日期，不代表论文的发表时间）