地下墙施工爆破对既有隧道的振动测试与分析  

Monitoring and analysis of an existing tunnel vibration induced by blasting construction of diaphragm wall

作　　者：禹海涛[1] 柳献[1,2] 袁勇[1,2] 王庆国 程国荣 吴晓峰[2] 

机构地区：[1]同济大学地下建筑与工程系,上海200092 [2]同济大学岩土及地下工程教育部重点实验室,上海200092 [3]上海轨道交通9号线项目部,上海200082 [4]上海市政养护管理有限公司,上海200082

出　　处：《爆炸与冲击》2009年第6期566-572,共7页Explosion and Shock Waves

基　　金："十一五"国家科技支撑计划项目(2006BAJ27B02-02)

摘　　要：结合复兴东路越江隧道浦西引导段地下连续墙爆破施工工程,给出了爆破施工对既有隧道振动影响的监测方案,包括测点布置、测试方法、测振系统。基于爆破振动监测数据,分析了3次不同位置和药量爆破下各测点的振动波形、速度、加速度响应、主频及主频域,根据判别标准得出了隧道在爆破振动下接近安全值底线的结论,同时归纳出不同爆破振动下结构的响应频谱特性,研究结果可为类似工程提供参考。Based on the blasting construction of diaphragm wall in Puxi guiding section ot East Fuxing Road crossing-river tunnel, the vibration monitoring project on the existing tunnel influenced by explosion construction was put forward, which included measure points arrangement, test method and vibration test system. Based on the monitoring data of explosion vibration, the vibration wave form, velocity, acceleration response, domain frequency and field of measure points were analyzed under the condition of three different locations and different detonators. Then according to the safety-judging criterion of explosion vibration, the conclusion that the existing tunnel could be in the base line of safety value under explosion vibration was drawn. Furthermore, the response spectrum characteristics of the existing tunnel subjected to three different explosion vibrations were concluded, these would provide references to the similar projects.

关 键 词：爆炸力学 隧道工程 爆破施工 振动监测 响应谱 地下连续墙 

分 类 号：O389[理学—流体力学] U455.6[理学—力学]