广东水利水电Issue(10)：1-10,10.
深基坑设计中嵌固深度确定研究
Research on Calculating Method of Settlement of Rigid-Pile Composite Foundation
摘要
Abstract
The problems existing in the checking calculation of embedded stability of foundation pit in the current code are studied.It is found that for the single-fulcrum supporting structure,when the soil is soft,no matter how deep the embedded is,the anti-heave stability coefficient of the first-stage foundation pit is difficult to meet the requirements of the standard safety factor.For the multi-fulcrum supporting structure,there is a problem that the embedded length of soft soil is longer and the embedded length of hard soil is shorter in the checking calculation of foundation pit stability.Based on the results of different soil examples,the control checking conditions for determining the embedded depth of foundation pit are proposed for cantilever,single fulcrum and multi fulcrum supporting structures.The control conditions,safety factor,displacement of supporting structure and soil reaction force in passive zone of foundation pit are studied.Based on the current specifications,a new method for determining the embedded depth of foundation pit is proposed.The example shows that the new method is more reasonable and has better applicability.关键词
深基坑设计/嵌固深度确定/稳定性验算Key words
deep foundation pit design/determination of embedded depth/stability checking分类
建筑与水利引用本文复制引用
姜燕,杨光华,苏卜坤,李俊..深基坑设计中嵌固深度确定研究[J].广东水利水电,2025,(10):1-10,10.基金项目
国家自然科学基金项目(编号:52078143). （编号:52078143）
