The deformation of mining roadway which caused by the mining is produced mainly by the abutment pressure.
在回采引起的巷道变形中，回采引起的支承压力是主要因素。
The result shows that there are two stress peaks in the abutment pressure and its magnitude and location are affected by the mining.
得出了超前支承压力存在两个峰值，其峰值大小、位置受煤层采动影响的变化规律。
The result indicated That the abutment pressure distribution form was similar to that of slicing mining method but its magnitude and affecting range changed.
结果表明，放顶煤采煤法其支承压力分布形式与分层开采法类似，但在量值及影响范围上有增减。
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