竖井爆破开挖控制技术  

Control technique of blasting excavation for shaft

作　　者：孙桂喜 魏日华[2] 付廷伍[3] 

机构地区：[1]辽宁省水文水资源勘测局鞍山分局,辽宁鞍山100105 [2]台安县水利局,辽宁台安114100 [3]中国水电顾问集团西北勘测设计研究院,陕西西安710065

出　　处：《东北水利水电》2007年第9期16-17,22,共3页Water Resources & Hydropower of Northeast China

摘　　要：取水首部竖井石方爆破开挖过程中,上游围堰岩坎正在进行帷幕灌浆,爆破中心距帷幕灌浆线最近距离为9.85m,需要对后续竖井爆破施工作业采取必要的控制措施。根据工程特点,结合进度要求和资源配置等因素,采取按台阶高度分层分段多作业面同时开挖的施工方案,取得了较好的施工效果。The curtain grouting was conducted during the blasting excavation of intake heading rock,the distance between the centre of blasting and the curtain grouting line is of 9.85 m,the necessary control measures are adopted for follow-up blasting construction of shaft. The construction scheme of stratified and segmented working surfaces is adopted based on the project characteristics,the good effect is obtained.

关 键 词：竖井开挖 深孔微差爆破 预裂爆破 光面爆破 

分 类 号：U641[交通运输工程—船舶及航道工程]