大雁二矿高应力软岩巷道底臌变形机理与支护的研究与实践

Research and practices on floor heave deformation mechanism and support of high stress soft rock roadway in Dayan No.2 Mine

软岩巷道变形是软岩矿区影响煤矿安全生产的主要危害之一,大雁二矿二水平(+250m)高应力软岩巷道失稳变形的主要因素是底臌,文章对引起巷道底臌的原因以及底臌变形规律进行了分析,提出了针对现场切实可行的防治措施。

The deformation of mine soft rock roadway was one of the main dangers affected to the mine safety production of the mining area with soft rock. The main factor of the lost stable and deformation in the No. 2 level （＋250m） high stress soft rock roadway of Dayan No. 2 Mine was the floor heave. The paper analyzed the floor heave cause and heave deformation law of the roadway and provided the practical and feasible prevention and control measures.