岩溶区高速公路路堑开挖深孔爆破技术研究  

Study on Deep Hole Blasting Technology of Highway Cutting Excavation in Karst Area

作　　者：董雪 DONG Xue(Seventh Engineering Branch of China Railway Fourth Bureau Group Co.,Ltd.,Hefei 230000,China)

机构地区：[1]中铁四局集团有限公司第七工程分公司,合肥230000

出　　处：《价值工程》2023年第13期58-60,共3页Value Engineering

摘　　要：本文依托麦贺高速公路岩溶区路堑爆破开挖控制难的实际问题,运用理论分析和现场测试的方法,对深孔爆破技术开展深入研究,形成了一套集炮孔布置、轮廓孔钻进方向控制、溶腔位置与尺寸精确测量、装药结构改进、起爆网路优化等于一体的岩溶区岩体爆破开挖施工方法,能有效避免炸药能量的泄露,提升爆破破岩效果,提高边坡轮廓成型效果。该施工技术有效应对了岩溶区深孔爆破施工难题,对类似工程具有借鉴意义。This paper,based on the practical problems of cutting blasting excavation control,using the method of theoretical analysis and field test,the in-depth study of deep hole blasting technology,formed a set hole layout,outline drilling direction control,cavity position and size accurate measurement,the loading structure improvement,blasting network optimization is integrated rock mass blasting excavation construction method,can effectively avoid the leakage of explosive energy,improve the blasting effect,improve the slope contour molding effect.The construction technology effectively deals with the problem of deep hole blasting in karst area,and has reference significance for similar projects.

关 键 词：岩溶区 路堑开挖 深孔爆破 光面爆破 

分 类 号：U416.13[交通运输工程—道路与铁道工程]