摘要
由于用地资源的紧张和地铁网络的密布,加上许多新建建筑距离地铁较近,在上海地区的轨道交通开发建设过程中都会涉及对已建地铁设施的保护问题。建立了新建建筑桩基对紧邻已建地铁隧道的影响分析计算模型,采用有限元法和解析法进行计算,研究了不同布桩方案、桩基与隧道间距、桩基沉降等对已建地铁隧道的影响。分析结果可以为上海地区在城市开发过程中对地铁隧道的保护提供分析依据。
Because of the uptight land resources and densely covered Metro network, more and more new buildings are constructed in locations very close to the existing tunnels in Shanghai. The protection of the subway facilities must be severely considered during the process of the building construction. The analysis model for the influence of pile foundations on the existing tunnels was conducted. Based on the finite element method and analytic calculation, the influence of the different pile foundation schemes, different distance between the pile and tunnels and pile foundation settlement on the existing tunnels were analyzed. The results of the analysis can provide the basis for the protection of the MTR tunnels in the process of the urban construction in Shanghai area.
出处
《结构工程师》
2009年第4期119-123,共5页
Structural Engineers
关键词
沉降
桩基
隧道
有限元
settlement
pile foundation
tunnel
finite element
