陷落柱影响区煤岩力学参数点荷载测试分析

Point Load Test Analysis on the Coal and Rock Mechanical Parameters in Collapse Column Affected zone

根据葛亭矿X5陷落柱左侧试件的点荷载强度,分析出了陷落柱周围20m范围内煤体强度的变化规律,以及20m处煤块由点荷载实验测得的强度与标准试件单轴抗压强度的误差。证明了点荷载实验方法可以为陷落柱围岩稳定性分析提供基础数据。

According to the point load strength of the specimens on the left side of X5 Collapse Column of the GeTing mine , analysis of the variation of coal strength around the collapse columns within 20 meters, and the error of the point load strength and the strength of standard test pieces in coal about 20 m, it proved that point load test method can provide the basic data for the stability analysis of surrounding rock collapse column.