小屯坡南头南部采空区塌陷原因分析

Analysis of causes leading to collapse of south worked-out area at south end of Xiaotunpo

针对开磷集团沙坝土矿小屯坡南头采矿点采空区塌陷情况,根据地压发展规律,研究并分析其地压变化及造成采场塌陷的主要原因,并提出应对措施,为后续矿段的开采提供了有益的参考。

In the light of the collapse case of worked-out area in south end in Xiaotunpo,Kailin Group,major causes leading to the collapse were analyzed and studied on the basis of the ground pressure development law,consequently,the solutions is put forward,which offers beneficial references for following mining of the ore members.