摘要
基于中兴煤矿围岩破碎地质条件,探讨了回采巷道低预应力锚网梁支护方式下,分析了巷道支护效果差的内在因素。在原有支护方案的基础上,提出了高预应力锚网带支护方案。结果表明:巷道支护效果良好,锚杆支护实践取得进展。
Base on the geological conditions of the broken surrounding rocks in Zhongxing Mine,the paper discussed the inner factors of the poor gateway support results with the low pre-stressed bolt,steel mesh and beam support method in the mining gateway.Base on the previous support plan,the paper provided the support plan with the high pre-stressed bolt,steel mesh and steel strip.The results showed that the gateway support results were good and the bolt support practices were obtained with the progress.
出处
《煤炭科学技术》
CAS
北大核心
2008年第12期4-5,24,共3页
Coal Science and Technology
关键词
破碎围岩
回采巷道
锚杆支护
broken surrounding rocks
mining gateway
bolt support
