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深孔预裂爆破技术在综采面初次放顶中的应用 被引量:6

First Roof Caving in Fully Mechanized Coal Face with Deep Hole Presplitting Blasting
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摘要 为解决坚硬顶板在回采工作面初采时的技术难题,采用深孔预裂爆破技术进行工作面初次放顶的工业性试验。试验结果表明:深孔预裂爆破技术强制爆落的煤岩块基本可以充满支架后方的采空区,改变了顶板力学结构,有效减弱顶板初次来压时的动载冲击作用,避免飓风的形成,为类似条件下的煤层顶板控制提供了参考。 In order to solve the difficulty problem of harden roof during the first mining of working face, the industrial experiment offirst roof caving of working face with deep hole presplitting blasting was processed, the experimental results showed that the goaf behindsupports could be filled fully with coal and rock blocks that appeared after deep hole presplitting blasting, then the mechanical structuralof roof was changed, dynamic loading impacting was decreased effectively of first pressure of roof, hurricane in mine was stopped,it references for roof control in similar situation.
作者 胡滨 梁小兴 王有发 蔚文忠 杨清泉 HU Bin;LIANG Xiao-xing;WANG You-fa;WEI Wen-zhong;YANG Qing-quan(Mining Institute, China Coal Research Institute, Beijing 100013, China;Shaanxi Province Hejiata Coal Mine, Shenmu 719315, China)
出处 《煤矿开采》 北大核心 2016年第6期54-56,共3页 Coal Mining Technology
基金 国家自然科学基金煤炭联合基金重点项目:基于煤矿井下综合应力场的煤岩动力灾害预测与控制基础研究(U1261211)
关键词 深孔预裂爆破 初次放顶 坚硬难垮顶板 deep hole presplitting blasting first roof caving harden and difficult caving roof
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