水力发电2018，Vol.44Issue(2)：92-94,3.
长河坝水电站坝体过渡料爆破直采法技术研究
Study on Direct Blasting Mining Technique of Transition Material for the Dam Filling of Changheba Hydropower Station
摘要
Abstract
Because the filling volume of transition material in dam construction of Changheba Hydropower Station is large and the rock in transition material quarry is too rigid,the excavation of transition material is decided by using direct blasting mining technique with higher powder factor.In order to obtain reasonable blasting parameters,several blasting tests are carried out,and the results are compared and analyzed.Taking into account the utilization rate of transition material and the amount of drilling work,the final blasting powder factor is determined as 2.2 kg/m3,and a set of more comprehensive blasting mining process suitable for hard rock is summarized.关键词
过渡料/爆破直采法/级配/长河坝水电站Key words
transition material/direct blasting mining method/gradation/Changheba Hydropower Station分类
建筑与水利引用本文复制引用
王海云,樊鹏..长河坝水电站坝体过渡料爆破直采法技术研究[J].水力发电,2018,44(2):92-94,3.基金项目
财政部施工新技术研究与开发项目(2150399) （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 （）
