“三软”煤层工作面收作期间的矿压控制方法探讨

Study on Control of Pressure of "Three Soft" Coal Face During Mining

根据矿压显现原理及岩石力学的"三轴抗压"理论,针对丁集煤矿"三软"煤层11-2煤,以该矿1262(1)综采工作面收作后矿压扰动现象为例,提出了以顶板甩压、保护煤柱加固的方式,减少工作面收作期间及后期矿压显现对保护煤柱以内主要大巷的破坏作用。

Based on the principle of ground and rock mechanics of the ＂three-axis compression＂ for small coal 11-2 Groove ＂soft＂ seam to mine 1262（1）.For mechanized pressure disturbance phenomena after example,it proposed to protect the roof off the pressure,the pillar reinforcement to reduce face during and post strata on the protection of the pillar within the main roadway.