施工技术 2011年6月下 52 CONSTRUCTION TECHNOLOGY 第40卷第343期 新开隧道施工对近接既有人防工程的影响监测 周奎，余金鑫，李伟2，张鑫3 (1.上海理工大学土木工程系，上海200093；2上海建工（集团）总公司海外事业部 技术中心，上海200032；3.杭州交通爆破工程有限公可，浙江杭州311202) [摘要]结合萧山北干山水久路新开隧道下穿人防工程监测项目现场实测底板位移和底板围岩压力变化情况，研 究近接人防工程在公路隧道钻爆法施工过程中的结构安全.对底板位移数据进行处理和分析，应用线性函数进行 回归分析，结果表明：底板位移平稳下降，整个监测过程中没有出现异常位移变化，各监测点的位移历时曲线也基 本符合线性函数的变化规律.对底板围岩压力数据进行处理和分析，结果表明：在30d的实测数据中出现了2次 较大的压力变化情况，通过分析原因，调整施工方案，避免了上部人防仓库在施工过程中道受冲击破坏，保证了安 全施工. [关键词]近接人防工程；现场监测；钻爆法施工；围岩位移；围岩压力 [中图分类号]TU942 [文献标识码]A [文章编号]1002-8498(2011)08-0052-03 Monitoring of Tunnel Excavating Effects on Adjacent Existing Civil Air Defense Works Zhou Kui' Yu Jinxin' Li Wei Zhang Xin' (1.Department of Cisil Engineering Unisersity of Shanghai for Science and Technology Shanghai 200093 China; 2.Technology Center of Overseas Department of SCG Shanghai 200032 China; 3.Hangzhow Traffic Blast Engineering Co.Ltd.Hangzhou Zhejiang 311202 China) Abstract:According to the excavating effects of the Yongjiu road tunnel in the Beigan mountain on adjacent under existing civil air defense works the surrounding rock deformation and pressure changes of roadway floors are monitored.The safety of the adjacent civil air defense works is researched during the highway tunnel construction by drill-blasting method.Data processing and linear regression analysis of the surrounding rock displacement are performed and the results show that the floor displacement dropped down smoothly and there is no unusual displacement variation during the tunnel construct...
新开隧道施工对近接既有人防工程的影响监测.pdf
