摘要
为研究综采工作面超前支承压力分布规律特征,采用巷道变形量观测和支柱载荷应力测量法,对城山煤矿145工作面回风平巷和运输平巷进行一系列观测分析。结果表明：巷道松动圈的范围在0.6~1.4 m;支承压力显现剧烈阶段为工作面前方10 m范围。提出了类似回采巷道掘进时和回采时超前支护的相对合理的支护方式,为相似巷道围岩支护提供了可靠依据。
In order to research the law of abutment pressure in the fully mechanized working face.The article with observing drift deformation and testing pillar load,analysis on the observation of the two drifts in No.145 working face of the Chengshan mine.The result show the broken rock zone is in the0.6 between 1.4 meters.By the influenced of main roof,the abutment pressure continue to increase within the scope of advanced support.The abutment pressure showing acutely stage is the range that is from coal wall to 10 meters ahead.Measure to reasonable support for similar drift in driving and advanced support.Provide reliable basis for supporting similar drift in the future.
出处
《煤炭技术》
CAS
北大核心
2014年第4期73-76,共4页
Coal Technology
基金
黑龙江省教育厅基金重点项目(11551z013)
关键词
支承压力
松动圈
超前支护
abutment pressure
broken rock zone
advanced support
