论文部分内容阅读
本文提出了一种软土地基与桩筏基础共同作用分析方法——位移协调法,利用筏板与桩土地基的位移协调条件和力平衡条件,建立共同作用的分析方程。桩土地基分析采用‘考虑桩压缩性的位移协调法’,筏板分析采用经典的Navier薄板理论。该方法具有占用计算机内存小、计算时间短、计算精度高等优点,使共同作用理论的工程运用成为现实。本文着重分析了荷载(加荷过程)、桩长、地基土弹性模量和筏厚等对均匀等长布桩桩筏基础工作性状的影响。本文对均匀等长布桩桩筏基础的计算、分析与设计具有指导意义。
In this paper, a method of analysis of joint action between soft soil foundation and piled raft foundation is proposed. The method of displacement coordination uses the coordination conditions and force balance conditions of displacement of raft and pile foundation to establish the analysis equation of mutual action. The pile foundation analysis adopts the “displacement coordination method considering the compressibility of piles” and the rocker analysis adopts the classical Navier plate theory. This method has the advantages of small computer memory, short calculation time, and high computational accuracy, making the engineering application of the joint action theory a reality. This paper focuses on the influence of load (loading process), length of pile, elastic modulus of foundation soil, and thickness of the foundation on the work properties of uniformly long-distributed piled raft foundation. This paper has guiding significance for the calculation, analysis and design of uniformly-distributed piled raft foundations.