井底水仓掘进过近距离煤层群支护技术应用  

Application of Support Technology to Excavation of Water Sump at Mine Shaft Bottom Passing Through Seam Group with Close Distance

作　　者：郭志伟 

机构地区：[1]汾阳市煤矿安全生产指挥调度中心,山西吕梁032200

出　　处：《煤炭工程》2014年第12期47-49,52,共4页Coal Engineering

摘　　要：-967m水平井底水仓掘进过程中多次穿煤层,导致水仓巷道围岩破碎,支护困难,针对这种情况,文章介绍了水仓所在位置的地质条件,研究采用"临时支护+锚网索喷支护+浇灌混凝土"的联合支护技术,对水仓支护方式及支护参数进行了优化设计,并论述了水仓掘进支护施工工艺,取得了较好的支护效果。During an excavation process of a water sump at-967 m level of a mine shaft bottom,the sump excavation had passed through several seams. Thus surrounding rocks of the water sump and gateway were broken and the support of the water sump and gateway was difficult. According to the circumstances,the paper introduced the geological condition of the water sump located and studied a combined support technology of “temporary support ＋ bolt / steel mesh / anchor /shotcreting ＋ site pouring concrete”. A design was conducted on the support method and support parameters of the water sump. The paper stated the construction technique of the sump excavation and support and a good support effect was obtained.

关 键 词：井底水仓 煤层群 巷道支护 锚网索喷支护 浇灌混凝土 

分 类 号：TD353[矿业工程—矿井建设]