摘要
为合理确定综放采场工作面终采线的位置,以谢桥煤矿C_(13-1)煤一综放工作面为研究背景,采用相似材料模拟试验和现场测试,从煤层顶板运动、巷道煤层受力和位移、巷道深部位移、轨道上山支架受力、巷道支架受力和变形、工作面周期来压等方面,全面分析了综放采场走向围岩压力分布规律。结果表明,围岩压力峰值位置平均值为14．4m,超前影响距离平均值为66．8 m,在工作面前方平均29．2 m处,围岩矿压显现由缓和趋向剧烈,并将终采线位置确定在离轨道上山30 m处,比预先按传统设计的50 m缩短了20 m留设煤柱,经济效益十分显著。
In order to rationally set the location of the terminal line for fully mechanized top coal caving mining face,and taking a fully mechanized top coal caving mining face in C_(13-1) seam of Xieqiao Mine as the research object,a simulation test and a site test with simula- ted material were conducted from the roof movement,deep displacement of the gateway,support loadings in the railway upward gateway, support loading and deformation in the gateway,periodical pressure in the coal mining face and others.The pap...
出处
《煤炭科学技术》
CAS
北大核心
2007年第4期12-15,共4页
Coal Science and Technology
基金
安徽省重点科研资助项目(04023061)
关键词
综放采场
走向
围岩压力
终采线
fully mechanized lop coal caving mining face
strike
surrounding rock pressure
mining terminal line
