布尔台煤矿综放工作面矿压显现规律

Study on Strata Behaviors Law of Fully Mechanized Top Coal Caving Face in Buertai Mine

在总结42106综放工作面矿压显现的基础上,依据现场调研与实测结果等综合分析可知,42106综放工作面在回采中存在一定程度的冲击性;从其回采工艺及其生产中的实际情况入手,依据采场矿压岩层控制理论,探讨了42106综放工作面矿压显现规律及其影响因素,并进一步提出对工作面顶板进行水压致裂卸压;现场施工结果表明:对顶板水压致裂卸压可以减小矿压显现程度,使采场应力得到集中缓解。

On the basis of summarizing strata behaviors of 42106 fully mechanized coal caving face, according to the comprehensive analysis of field survey and measured results, it is found that there is a certain degree of impact in 42106 fully mechanized caving face in the recovery process and its production process. According to the actual situation in mine and the theory of rock stratum control in the mining area, the laws and the influencing factors of strata behaviors in 42106 fully mechanized face are discussed, and the hydraulic fracturing and pressure relief on the roof of the working face is further proposed. The results of field construction show that the pressure relief and unloading of the roof can reduce the degree of pressure appearance and stress concentration of stope.