摘要
以武汉大东湖深隧工程3号竖井为背景,对狭小竖井超深基坑爆破方案及施工步骤进行介绍,对爆破振动及飞石进行计算,并通过爆破振动监测、采取邻近桩墙布设预裂孔等措施减小爆破对周边环境及竖井支护体系的影响,降低安全风险,为类似工程爆破施工提供指导。
Based on the No.3 shaft of Wuhan Dadonghu Deep Tunnel project,the blasting scheme and construction steps of ultra-deep foundation excavation in narrow shaft are introduced. The blasting vibration and flying stone are calculated,and the surrounding environment and shaft support system effect is reduced by blasting vibration monitoring and adopting pre-cracking holes near the pile wall. The impact of reducing safety risks provides guidance for similar engineering blasting construction.
作者
王延波
申祖武
蒋尚志
董强
WANG Yanbo;SHEN Zuwu;JIANG Shangzhi;DONG Qiang(School of Civil Engineering and Architecture,Wuhan University of Technology,Wuhan,Hubei 430070,China;CCTEB Infrastructure Construction Investment Co.,Ltd.,Wuhan,Hubei 430065,China)
出处
《施工技术》
CAS
2019年第22期63-66,共4页
Construction Technology
基金
中建三局集团有限公司科研项目(CSCEC3B-2018-17)
关键词
基坑
爆破
振动
监测
foundation excavation
blasting
vibration
monitoring
