内错瓦斯尾巷下综采面顶板破碎机理及其防治.pdfVIP

学兔兔 第l6卷 第2期 (总第99期) 煤 矿 开 采 Vo1．16No．2(Series No．99) 2011年4月 Coal mining Technology April 2011 内错瓦斯尾巷下综采面顶板破碎机理及其防治 王 冲 ，万志军 。，贾正彪 ，周长冰 ，。 (1．中国矿业大学 矿业工程学院，江苏徐州221008；2．煤炭资源与安全开采国家重点实验室，江苏 徐州221116) [摘 要] 内错尾巷在高瓦斯工作面瓦斯治理得到了广泛的应用并取得了很好的效果，而内错 尾巷下方工作面顶板破碎严重影响了生产安全，减弱了内错尾巷的作用。对内错尾巷下方工作面顶板 破碎情况进行现场实测，采用力学模型分析其破碎机理，应用ANSYS软件模拟其应力分布，在深入 分析内错尾巷下方顶扳破碎机理的基础上，提出了防治顶板破碎的措施，在寺家庄煤矿15104大采高 综采工作面得到成功应用。 [关键词] 内错尾巷；顶板破碎；应力分布；数值模拟 [中图分类号]TD327．2 [文献标识码]A [文章编号]1006-6225(2011)02-0023-03 Roof Breakage Mechanism and Prevention in Full-mechanized Mining Face under Inboard Methane Tailing Gateway WANG Chong’一， WAN Zhi—jun 一，JIA Zheng．biao 一，ZHOU Chang．bing (1．State Key Laboratory of Coal Resources＆Safe Mining，China University of Mining＆Technology，Xuzhou 221008，China； 2．Mining Engineering School，China University of MiningTechnology，Xuzhou 221008，China) Abstract：Inboard tailing gateway has been widely used in methane treatment of mining face with high methane and had excellent effect，but broken roof of mining face under inboard tailing gateway seriously influenced safe mining．Roof broken state of mining face under inboard tailing gateway was observed on—the—spot and mechanics model was applied to analyzing broken mechanism．ANSYS was used to simulate stress distribution．Based on analysis of roof broken mechanism，measures of preventing roof broken was put forward and was applied successfully in 1 5 1 04 full—mechanized mining face with large mining height in Sijiazhuang Colliery． Key words：inboard tailing gateway；broken roof；stress distribution；numerical simulation 采取内错尾巷布置方式处理综采及放顶煤工作 考和借鉴。 面通风瓦斯，是近年来广泛采