土工基础

›› 2014, Vol. 28 ›› Issue (3): 91-93.

• 工程实录 • 上一篇    下一篇

溶洞因素对筏板基础应力和沉降的影响

何敏儒1,谈一评2   

  1. （1.广东省建筑设计研究院,  广州 510010;2.广东工业大学土木与交通工程学院,广州 510006）
  • 收稿日期:2013-06-27 出版日期:2014-06-20 发布日期:2014-06-28
  • 作者简介:何敏儒（1987-），男，工学硕士，助理工程师，研究方向为结构工程。

The Influence of Karst Factors on the Stress and Settlement of a Raft Foundation

HE Minru1, TAN Yiping2   

  1. （1. The Architectural Design and Research Institute of Guangdong Province，Guangzhou, 510010
    2. School of Civil & Transportation Engineering, Guangdong University of Technology, Guangzhou, 510006）
  • Received:2013-06-27 Online:2014-06-20 Published:2014-06-28

摘要： 在岩溶地质条件下，通过三维整体建模，考虑上部结构与地基基础的相互作用，利用ANSYS有限元软件进行模拟分析，通过改变溶洞埋深、半径、形状及改变溶洞围岩的弹性模量、泊松比及厚度，得出溶洞因素对筏板基础应力、沉降的影响变化规律。

关键词: 溶洞, 相互作用, 筏板基础, 有限元分析

Abstract: The influence of karst factors on the stress and settlement of the raft foundation is presented through a three dimensional numerical analysis by using ANSYS software. The analysis considers the interactions between the superstructures and foundations. Different karst cavity depth, radius, shape, stiffness, Poisson's ratio and thickness are investigated and their influences on the stress and settlement distribution in the raft foundation are discussed.

Key words: Karst Cavities, Superstructure Foundation Interaction, Raft Foundations, Finite Element Analysis