煤岩地质力学评估分析及地应力测量研究

Study on geo-stress measurement of mechanics assessment

某矿主采4号煤层,为了确保支护参数的合理性和准确性,需对研究巷道顶底板煤岩地质力学性质及地应力分布情况进行评估和分析。使用压力试验机对采集的岩样进行力学参数测试,得到试样物理力学数据。采用空心包体应变法测试计算得出煤层的地应力值,分析煤矿地应力分布规律,确定巷道支护的相关参数,保证矿井的安全生产,对合理锚固层位确定以及后续支护方案设计和安全评价具有指导意义。

In order to ensure the rationality and accuracy of support parameters,a mine owner adopted No. 4 seam to evaluate and analyzed the geomechanical properties and geostress distribution of coal roof and floor rock mass. First of all,using the pressure testing machine to test the mechanical parameters of the collected rock samples,to get the physical and mechanical data of the samples. Secondly,the stress of the coal seam was calculated and measured by using the hollow inclusion strain method,and the distribution law of the stress in the coal mine was analyzed in order to accurately determine the relevant parameters of the roadway support and ensure the safe production of the mine,and the support design and safety evaluation was instructive.