基于液压支架压力值反演覆岩破坏高度的方法研究

Study on Method of Rock Failure Height Inversion Based on Hydraulic Support Pressure Value

针对液压支架工作阻力产生的来源进行了分析,认为液压支架的载荷一部分来自破碎岩体的静载,一部分来自岩梁结构失稳的动载。据此根据现场监测的矿压数据反演分析覆岩破坏的高度,并结合现场的冲洗液漏失量法进行对比,给出修正系数。对于分析覆岩破坏高度、指导现场生产具有重要作用。

Analyzed the source of the working resistance of hydraulic support. It is considered that the load of hydraulic support is partly from the static load of broken rock mass, and partly from the dynamic load of rock beam structure instability. According to the mine pressure data monitored in situ, the height of overlying rock failure is inversed and analyzed, and the correction coefficient is given by comparing with the field flushing fluid leakage method. It plays an important role in analyzing the failure height of the overlying rock and guiding the production on the spot.