深层清障对邻近构筑物沉降的影响

THE INFLUNENCE OF DEEP CLEARANCE ON THE SETTLEMENT OF ADJACENT STRUCTURES

1. Qinghai Geological Foundation Engineering Construction Corporation, Shanghai 201803, China;
2. Shanghai Geological and Mineral Construction Co., Ltd., Shanghai 200436, China

摘要: 在旧城区改造建设过程中，时常针对影响拟建工程的天然或人工构筑物进行清障工作。在清障过程中对关键构筑物实施保护越来越成为建筑工程师们关注的焦点。为此，结合上海软土地层中采用全回转套筒钻机进行拔桩工程实例，通过实测数据分析拔桩的施工工序及对邻近构筑物的沉降影响。分析结果表明：为控制邻近构筑物沉降变形，需要合理安排清障的施工顺序并及时对施工过程中发生的事故进行工程应急处理。
- 拔桩施工 /
- 共同沟 /
- 沉降 /
- 监测
Abstract: In the reconstruction tall-rotating process of the old urban area, it is often necessary to clear the natural or artificial structures that affect the proposed project. How to protect key structures in the process of obstacle clearance has become the focus of attention of structural engineers. Based on the cases of pile pulling construction in soft soil layer of Shanghai with tall-skave drill, the paper discussed the influence of the construction process and accidents on the settlement of the adjacent structures by analyzing the measured data. The analysis results showed that it was necessary to arrange the pile pulling construction process reasonably and deal with the accidents occurred in time in order to control the settlement of adjacent structures.
- pile pulling construction /
- common ditch /
- settlement /
- monitoring

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