借助数值模拟解决斜沟煤矿迎回采动压底臌问题

his article analyze three different situations of 18109coal face roadway driving of xiegou mine by means of numerical modeling.18109roadway surrounding rocks have once mining influence,when driving ahead of mining.The mining influence is quite little.18109roadway have twice mining influence .The second influence have a great influence on the raodway,which is after the primary mining influence.18109roadway have twice mining influence .The second influence have a very great influence on the roadway,which casues sress superposition,when driving and mining at same time.It is most beneficial to the maintenance of roadway that driving ahead of mining by the roadway surface displacement curve and the field strata bahaviors.