锚杆支护在经坊煤矿回风巷的应用

Application of anchor bolt support in air return roadway of Jingfang Mine

通过对山西省长治经坊煤业有限公司3-6012回风巷现场调研、井下钻孔窥视,系统分析3号煤层顶板的地质力学特性,在此基础上分析3-6012回风巷围岩控制原理及与其相适应的锚固支护理论,确定3-6012回风巷锚杆支护方案及支护参数。结果表明:锚杆支护显著提高围岩稳定性,提升和解决了影响矿井安全生产的支护技术难题。

Geological mechanical properties of No. 3 coal seam of 3-6012 air return roadway of Shanxi Changzhi Jingfang Mining Industry was analyzed by exploration of site and underground peephole, the roadway surrounding rock control mechanism and corresponding anchor bolt support theory were analyzed, the support and parameters of 3-6012 air return roadway were settled. The result showed that the anchor bolt support improved the stability of surrounding rock and solved the support difficulty.