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机构地区:[1]中国矿业大学(北京)资源与安全工程学院,北京100083 [2]开滦(集团)有限责任公司,河北唐山063000
出 处:《煤炭工程》2012年第12期70-72,共3页Coal Engineering
基 金:国家重点基础研究发展计划(973)资助项目(2010CB226801);中央高校基本科研业务费专项资金(2010YL10;2010QL02)
摘 要:赵各庄矿属深部开采矿井,动压显现严重,文章对赵各庄矿动压现象进行了统计分析,并根据现场实际情况提出了利用工程缺陷法对工作面和巷道高应力区进行卸压的方法,从而转移煤岩体的应力分布、促进冲击能释放。通过对孔洞型缺陷卸压的数值模拟研究,分析了利用工程缺陷进行巷道卸压的可行性,并在2337E工作面的现场实践中取得了良好的卸压效果,实现了煤矿的安全开采。Zhaogezhuang Mine is a deep coal mining mine with remarkable serious dynamic pressure. The paper had a statistic analysis on the dynamic pressure phenomena occurred in Zhaogezhuang Mine. According to the site actual conditions, an engineering defect method was provided to the pressure releasing of the high stress zone in the coal mining face and the gateway. Thus the stress distribution of the coal and rock mass could be transferred and the bumping energy releasing could he promoted. With a study on a numerical simulation of a cavity type defect pressure releasing, a feasibility of gateway pressure releasing with an engineering defect was analyzed. A good pressure releasing effect was obtained from the site practices of No. 2337E coal mining face and a mine safety mining was realized.
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