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地铁的建设处于建筑物和管线密集的中心城区,地铁隧道施工对周边建筑物造成一定的影响,主要表现为建筑物主体结构裂缝、房屋倾斜、建筑物周边地面的变形等来反映。在进行建筑物结构的现状调查时,一些年代较为久远的建筑物由于某些资料的缺失而无法确定建筑物的主体结构与基础型式,如何不损伤的确定建筑物基础型式、基础变形和基础周边安全隐患成为一大难题。通过北京地铁10号线二期某区间建筑物的评估工作为实例,通过引入地质雷达进行建筑物基础和周边环境检测,详细介绍了隧道施工影响范围内建筑物基础型式、基础变形及周边安全隐患探查的评估过程,以此确定建筑物的安全程度,对类似工程具有一定的指导作用。
Subway construction is in central urban areas where buildings and pipelines are densely populated. The construction of subway tunnels will affect the surrounding buildings to some extent, mainly reflecting the cracks in the main structure of the buildings, the inclination of buildings and the deformation of the ground around the buildings. In the investigation of the current status of building structures, some buildings with more distant age can not determine the main structure and basic types of buildings due to the lack of certain data, and how to determine the basic types of buildings without damage, the basic deformation and the perimeter Security risks have become a big problem. Through the evaluation of buildings in a certain section of Beijing Metro Line 10 Phase II as an example, the introduction of geologic radar to detect the building foundation and surrounding environment details the basic types of buildings, the basic deformation and the potential safety hazards in the area covered by the tunnel construction Exploration of the assessment process, in order to determine the safety of buildings, for similar projects have a guiding role.