长河坝水电站坝料混装炸药开采技术研究  

Study on Mixed Explosive Mining Technology of Dam Material in Changheba Hydropower Station

作　　者：陈曦[1] 王宁[1] 

机构地区：[1]中国水利水电第五工程局有限公司,四川成都610066

出　　处：《水力发电》2018年第2期98-101,共4页Water Power

基　　金：财政部施工新技术研究与开发项目(2150399);中国水利水电建设股份有限公司重大科技专项"300 m级高心墙土石坝关键施工技术"研究课题

摘　　要：针对长河坝水电站大坝中后期堆石填筑料需求量大,采用成品炸药无法满足施工进度要求的情况,开展了混装炸药开采技术的研究。通过2批次的现场爆破试验,确定了合理的爆破参数,并采用混装炸药车进行机械装药。研究成果表明,所确定的爆破参数和机械装药方式满足堆石料的级配要求,相应的爆破振动速度等有害爆破效应满足规程要求。通过与成品炸药的对比表明,混装炸药爆破作业方式具有显著的经济效益和社会效益。The dam filling in Changheba Hydropower Station needs large amount of rockfill materials in the middle and late stage of project construction. As the finished explosives cannot meet the requirements of construction schedule, a study on the technology of mixed explosive mining is carried out. Through two on-site blasting tests, reasonable blasting parameters are determined and a mixed explosive truck is used for mechanical charging. The research results show that the blasting parameters and mechanical charging method meet the requirements of rockfil] material gradation, and corresponding blasting vibration velocity and other harmful blasting effects meet the requirements of regulations. Comparing with finished explosives, mixed explosives mining mode has significant economic and social benefits.

关 键 词：混装炸药 爆破试验 颗粒级配 长河坝水电站 

分 类 号：TD235.21[矿业工程—矿井建设]