基坑开挖诱发围护桩与邻近建筑物桩基的变形研究  

作　　者：杨阳[1] 朱大鹏[1] 李亮亮[1] 

机构地区：[1]西南石油大学地球与科学技术学院

出　　处：《科学技术创新》2019年第35期97-98,共2页Scientific and Technological Innovation

摘　　要：基坑开挖时围护桩与邻近建筑物桩基之间会存在一个协同变形关系。以实际工程为背景进行研究围护桩与桩基的变形规律。结果表明,桩基存在时会改变基坑围护桩的变形量及变形规律,由于桩基础的挡土效应会使得建筑物一侧围护桩位移小于无建筑物一侧且最大位置发生处在围护桩桩顶,另外靠近基坑的桩基变形最大值发生在桩顶以下6m左右,其余桩基础最大值均是发生在桩顶。There is a cooperative deformation relationship between the retaining pile and the pile foundation of adjacent buildings.The deformation law of retaining pile and pile foundation is studied on the background of actual project.Results show that the pile foundation is change of retaining pile deformation and the deformation law of foundation pit,as a result of the pile foundation soil retaining effect makes the building side displacement of retaining piles is smaller than without the building side and largest position in retaining pile tip,and the other close to the maximum of the pile foundation pit deformation occurred in about 6 m below the pile top,the rest of the maximum value of pile foundation are at the top of the pile.

关 键 词：基坑开挖 围护桩 桩基础 数值分析 

分 类 号：TU473.1[建筑科学—结构工程]