摘要
随着城市基础设施建设的快速发展,越来越多的地铁工程需要穿越城市既有道路。地铁工程下穿城市既有道路的施工过程会对既有道路的安全性造成影响,需要对既有道路的沉降量进行计算。以北京地铁某车站下穿既有道路为工程背景,采用现场踏勘和数值模拟相结合的研究手段,对车站施工引起的路面沉降进行了数值计算,提出了既有道路变形指标,确定了施工监测分级预警值,给出了施工过程中的建议和对策。
With the rapid development of urban infrastructure construction, more and more subway projects need to cross existing roads in the city. The construction process of the existing roads under the subway project will affect the safety of the existing roads, and the settlement of the existing roads needs to be calculated. This study takes the existing road under a station of Beijing Metro as the engineering background, adopts the research method of combining on-site survey and numerical simulation, calculates the road settlement caused by the construction of the station, puts forward the existing road deformation index, determines the construction monitoring grading early warning value, gives suggestions and countermeasures in the construction process, and provides scientific guidance and engineering significance for the construction of urban subway projects.
作者
王涛
李宝国
张佩佩
Wang Tao;Li Baoguo;Zhang Peipei(Beijing Urban Express Rail Construction Management Co.,Ltd.,Beijing 100028,China;Beijing Infrastructure Investment Co.,Ltd.,Beijing 100101,China)
出处
《山西建筑》
2022年第14期140-143,共4页
Shanxi Architecture
关键词
下穿工程
既有道路
沉降计算
变形指标
分级预警
underpass engineering
existing roads
settlement calculation
deformation indicators
grading early warning
