硫磺沟煤矿厚煤层地应力场研究

Research on the in-situ stress field in thick coal seam of Liuhuanggou coal mine

针对硫磺沟煤矿(4-5)04面受冲击地压影响情况,分别对该面进行地应力测试,单点探测。分析得出该面地应力场以垂直应力为主,回风上山、主暗斜井、副暗斜井易受最大水平主应力的影响,巷道变形较大;在皮顺上帮、迎头,下帮迎头,皮顺掘进迎头和轨顺迎头下帮煤岩体破碎带。

Aiming at the situation of the （4-5） 04 working face in Liuhuanggou coal mine affected by rock burst, implement the in-situ stress test in this working face, single point detection. Analysis shows that the in-situ stress field is at vertical stress, the rise for return air, the main dark inclined shaft, and the vice dark inclined shaft is susceptible to the effect of the maximum horizontal principal stress, the roadway deformation is larger.