鄂北地区水资源配置工程浅埋隧洞爆破振动和地面沉降数值分析及影响评价  

Numerical analysis and influence assessment of vibrations and ground subsidence from shallow tunnel blasting construction of North Hubei Water Transfer Project

作　　者：潘亚辉 饶霈 杨静芸 付海峰 PAN Yahui;RAO Pei;YANG Jingyun;FU Haifeng(Hubei Institute of Water Resources Survey and Design,Wuhan 430064,China;Wuhan Chujiang Water Conservancy Project Quality Control Co.,Ltd.,Wuhan 430026,China)

机构地区：[1]湖北省水利水电规划勘测设计院,湖北武汉430064 [2]武汉楚江水利水电工程质量检测有限公司,湖北武汉430026

出　　处：《水利水电快报》2020年第11期72-77,共6页Express Water Resources & Hydropower Information

摘　　要：鄂北地区水资源配置工程优良隧洞为浅埋隧洞,隧洞下穿国道、居民楼等既有建(构)筑物。隧洞施工过程中,爆破施工对居民楼产生了爆破振动影响,利用有限元方法对爆破振动及地面沉降影响进行了数值分析。结果表明:数值计算结果与爆破试验测试成果偏差不大,通过优化施工参数可以有效减少居民楼振动及沉降带来的安全风险。Youliang Tunnel,a part of the North Hubei Water Transfer Project,is a shallow tunnel,and it lies underneath a national highway,residential buildings and other existing buildings and structures.Tunnel blasting construction affected the nearby residential buildings,thus we employed the Finite Element method to conduct numerical analysis on blasting vibrations and ground subsidence.The results showed that the calculated results were not deviate much from the actual results,optimizing construction parameters can effectively reduce safety risks regarding blasting vibrations and ground subsidence.

关 键 词：浅埋隧洞 隧洞开挖 爆破振动 地面沉降 有限元数值分析 鄂北地区水资源配置工程 

分 类 号：U456.3[建筑科学—桥梁与隧道工程]