3_上煤1301工作面冲击危险性评价及防治对策

Risk Assessment and Preventive Measures of Rock Burst in No.3 Upper 1301 Working Face

随着煤矿开采深度的加大,冲击地压逐渐成为煤矿开采中发生的主要灾害之一。以高煤公司3上煤1301回采工作面冲击危险性评价为例,采用基于应力叠加的工作面冲击危险综合评价方法,结果表明,该方法能够量化反映3上煤1301工作面冲击危险性程度随着工作面走向长度变化而变化,评价结果与回采工作面冲击地压实际发生情况相符。

With the increase of coal mining depth, rock burst has gradually become one of the main disasters in coal mining. Taking the impact risk evaluation of No. 3 upper coal 1301 coal-winning face of Gaozhuang Coal Industry Co., Ltd. as an example, the comprehensive evaluation method of rock burst risk based on stress superposition was adopted. The results showed that the method can quantitatively reflect the rock burst risk degree of No. 3 upper coal 1301 coal-winning face changes with the change of the strike length of the working face. The evaluation results are consistent with the actual occurrence of rock burst in the coal-winning face.