软土地区承台基坑变形影响分析

Influence analysis of vibration frequency on concrete performance of residential project

以软土地区某桥梁的承台基坑工程为研究对象,通过对排桩围护结构及周边土体变形进行自动化监测,分析了施工过程中排桩及周边土体的变形规律。结果表明,基坑周围土体变形与围护结构类型、周围建筑基础形式之间存在明显耦合作用。同时,排桩作为围护结构仅会对地表下方一定深度内的土体变形产生影响,桩基础对其周边土体的影响比对排桩周边土体的影响更加显著,这些发现对于软土地区基坑施工过程中的变形控制和周边环境安全具有重要意义。

Based on the automatic monitoring of the deformation of the retaining structure of row piles and the surrounding soil,the deformation law of the row piles and the surrounding soil during the construction is analyzed.The results show that there is an obvious coupling effect between the deformation of soil around foundation pit and the type of retaining structure and the form of surrounding building foundation.At the same time,as a retaining structure,row piles will only affect the deformation of soil in a certain depth below the surface,and the influence of pile foundation on the surrounding soil is more significant than that on the surrounding soil,these findings are of great significance to deformation control and environmental safety during foundation pit construction in soft soil area.