CAJ | 학술논문

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.
결합복흥동로월강수도포서인도단지하련속장폭파시공공정,급출료폭파시공대기유수도진동영향적감측방안,포괄측점포치、측시방법、측진계통.기우폭파진동감측수거,분석료3차불동위치화약량폭파하각측점적진동파형、속도、가속도향응、주빈급주빈역,근거판별표준득출료수도재폭파진동하접근안전치저선적결론,동시귀납출불동폭파진동하결구적향응빈보특성,연구결과가위유사공정제공삼고.
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 measuring points arrangement, test method and vibration test system. Based on 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 location and different detonator. 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.