地铁隧道掘进爆破对人行天桥影响研究
发布时间：2019-07-04 17:31
【摘要】：以乌鲁木齐轨道交通1号线中营工站—小西沟站区间地铁隧道工程为研究对象,研究了城市复杂环境下区间隧道掘进爆破设计和振动监测。根据爆破振动监测结果,分析了隧道上方地表振动传播规律以及人行天桥桥墩振动及其频谱特性,据此调整爆破设计方案、优化爆破设计参数、改进施工工艺,有效降低了隧道掘进爆破对上方4跨连续箱梁人行天桥扩大基础及两侧建筑物的振动影响,确保地铁隧道爆破在城市复杂环境下施工安全。
[Abstract]:Taking the subway tunnel project between Zhongying Station and Xiaoxigou Station of Urumqi Rail Transit Line 1 as the research object, the blasting design and vibration monitoring of interval tunnel excavation in urban complex environment are studied. According to the monitoring results of blasting vibration, the propagation law of surface vibration above the tunnel and the vibration and spectrum characteristics of the pier of pedestrian overpass are analyzed. According to this, the blasting design scheme is adjusted, the blasting design parameters are optimized, the construction technology is improved, the vibration influence of tunnel excavation blasting on the enlarged foundation of the upper four-span continuous box girder footbridge and the buildings on both sides are effectively reduced, and the construction safety of subway tunnel blasting in the complex urban environment is ensured.
【作者单位】： 北京市政路桥股份有限公司;北京工业大学建筑工程学院;
【基金】：北京市政路桥股份有限公司科技开发项目 国家自然科学基金重点项目(12004014201501)
【分类号】：U231.3;U455.6
，
本文编号：2510087
[Abstract]:Taking the subway tunnel project between Zhongying Station and Xiaoxigou Station of Urumqi Rail Transit Line 1 as the research object, the blasting design and vibration monitoring of interval tunnel excavation in urban complex environment are studied. According to the monitoring results of blasting vibration, the propagation law of surface vibration above the tunnel and the vibration and spectrum characteristics of the pier of pedestrian overpass are analyzed. According to this, the blasting design scheme is adjusted, the blasting design parameters are optimized, the construction technology is improved, the vibration influence of tunnel excavation blasting on the enlarged foundation of the upper four-span continuous box girder footbridge and the buildings on both sides are effectively reduced, and the construction safety of subway tunnel blasting in the complex urban environment is ensured.
【作者单位】： 北京市政路桥股份有限公司;北京工业大学建筑工程学院;
【基金】：北京市政路桥股份有限公司科技开发项目 国家自然科学基金重点项目(12004014201501)
【分类号】：U231.3;U455.6
，
本文编号：2510087
本文链接：https://www.wllwen.com/guanlilunwen/gongchengguanli/2510087.html
