According to the field investigation at Dayang coal mine, the paper describes behavior of ground pressure of longwall top coal caving face with soft surrounding rock and movement of overlying strata.

• 本文通过大雁二矿28%23层采面矿山压力的实测分析,论述了软岩矿井大采放比综放开采矿压显现特征和围岩活动规律。