硬岩立井井筒钻眼爆破施工新技术
施云峰;冯旭东;魏金山
【期刊名称】《爆破》 【年(卷),期】2012(029)003
【摘要】For digging in hard rock layer,the blasting efficiency of original drilling and blasting construction of vertical shaft is less than 60%. Based on consultations and researches, the hydraulic umbrella diamond drilling and high-power explosives was applied to blast engineering. Meanwhile, the second-order mixed cutting and drilling controlling method were performed,which enhances the blast efficiency and economic profit.%对于硬岩地层立井井筒掘进施工,原来采用的钻爆施工措施,爆破效率不足60%,后经过多次咨询、调研,选用液压伞钻钻孔和高威力炸药爆破,采取二阶混合掏槽方式,同时严格控制钻孔质量,提高了爆破效率,取得较好的经济效益.
【总页数】4页(54-57)
【关键词】硬岩;钻眼爆破;液压伞钻;高威力炸药 【作者】施云峰;冯旭东;魏金山
【作者单位】中煤矿山建设集团有限责任公司三十工程处,宿州234000;煤矿深井建设技术国家工程实验,淮北235000;中煤矿山建设集团有限责任公司三十工程处,宿州234000;煤矿深井建设技术国家工程实验,淮北235000;中煤矿山建设集团有限责任公司三十工程处,宿州234000;煤矿深井建设技术国家工程实验,淮北235000
硬岩立井井筒钻眼爆破施工新技术
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