地下墙施工爆破对既有隧道的振动测试与分析

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。

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

Based on the blasting construction of diaphragm wall in Puxi guiding section of 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...