开切眼支护解除技术应用研究  

Application Research of Support Relief Technique in Open-off Cut

作　　者：李强[1] 陈中伟[1] 茅献彪[1] 

机构地区：[1]中国矿业大学理学院,徐州221116

出　　处：《武汉理工大学学报》2009年第10期68-71,88,共5页Journal of Wuhan University of Technology

基　　金：国家自然科学基金重点项目(50634050;50834004);国家重点基础研究发展计划973项目(2007CB209400)

摘　　要：以漳村煤矿2302工作面为工程背景,在切眼处实施支护解除,并与相邻采区的2202工作面(切眼支护未解除)进行效果对比分析。工作面初次跨落步距和周期来压步距明显减小,切眼周围巷道压力也明显减小,有利于工作面初放期间的矿压管理。在切眼处实施支护解除,还缩小了后方保护煤柱的宽度,增加了工作面的出煤量,为煤矿企业带来直接的经济效益。Taking the 2302 working face in Zhangcun coal mine as the background, support is relieved in open-off cut, and the results are contrasted with that of 2202 working face in neighboring producing area whose support in open-off cut is not relieved. The first weighting interval and the periodic interval decrease obviously and the same to the pressure of laneways around open-off cut above is in favor of pressure management. Support relief in open-off cut can also reduce width of protective coal pillar behind open-off cut and increase the coal output, which can bring economic benefit to coal mine.

关 键 词：切眼 锚杆锚索 支护解除 

分 类 号：TD35[矿业工程—矿井建设]