综放工作面沿空留巷充填墙体变形分析

Deformation Analysis of Filling Wall of Gob-side Entry Retaining in Fully Mechanized Topcoal Caving Face

为提高资源回收率,东峰煤矿3G02综放工作面采用柔模混凝土沿空留巷技术进行回采留巷布置。根据留巷期间和留巷完成后的矿压观测,分析了柔模混凝土墙体和锚栓的受力状态和规律,提出针对性的改进措施。

In order to improve the recovery rate of resources,the flexible formwork concrete gob-side entry retaining technology is adopted in the 3G02 fully mechanized caving face of Dongfeng Coal Mine.According to the observation of rock pressure during and after retaining roadway,the stress state and law of flexible formwork concrete wall and anchor bolt are analyzed,and the corresponding improvement measures are put forward.