摘要
Abstract
Numerical simulation research has intuitiveness.By establishing numerical simulation models and controlling variables,the influence trends of various factors can be quantitatively studied more accurately.The data collected from Huainan Xinji No.2 Mine are analyzed,two models are established for tilt angles of 15 °,30 °,45 °,60 °,and 75 ° and fault drop of 1 m,3 m,5 m,7 m,and 9 m,respectively,and the simulation results are calculated.The simulation results are compared with the roof subsidence values after coal seam mining calculated by material mechanics theory analysis and the actual monitoring data after mining in Xinji No.2 Mine,to verify the numerical simulation results and the actual deformation laws of the strata.Through data analysis,it is found that the deformation law of the strata in numerical simulation is basically consistent with mechanical analysis and actual data,with a high degree of coupling,which can scientifically and effectively provide theoretical basis for preventing and controlling coal mining subsidence disasters in later mine areas.关键词
FLAC3D/采煤沉陷/数值模拟/断裂构造/控灾Key words
FLAC3D/coal mining subsidence/numerical simulation/fault structure/disaster control分类
矿业与冶金
