【摘要】 通过对土城煤矿现场实际观测、矿压测量数据统计 ,结合理论分析 ,得出了上一煤层采动过程中 ,采场支承压力通过底板岩体应力、应变对下一煤层掘进工作面的有害影响范围 ,为今后类似不同煤层采、掘同时进行时 ,掘进工作面合理布置提供了依据更多还原

【Abstract】 From the view of the scene statistics,mine pressure data combined with theoretical analysis,draw the harmful rang from the mining procecs through the effect of floor rock strain on the tunmelling face, which provide the basis for the futural similar tunnelling face arrangement under the conditions of mining and heading at same time.更多还原