劲性搅拌桩复合地基非线性有限元分析

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英文篇名：Finite Element Analysis for Composite Foundation of Reinforced Mixing Pile 中文刊名：结构工程师 英文刊名：Structural Engineers 作者：盛桂琳 ; 鲍鹏 ; 孔德志 英文作者：SHENG Guilin BAO Peng KONG Dezhi (Henan University ; Henan 475001) 中文关键词：劲性搅拌桩 ; 复合地基 ; 有限元法 英文关键词：reinforced mixing pile ; composite foundation ; finite element method 出版日期：2005-06-30 机构：河南大学,河南大学,河南大学 河南 475001 ,河南 475001 ,河南 475001 年：2005 期：03 出版单位：结构工程师

摘要

以有限元程序ANSYS为工具,对劲性搅拌桩单桩的工作性状进行了分析研究。软土中不同芯桩长度和截面含芯率的劲性搅拌桩的内力和变形的分析。结果表明:劲性搅拌桩的荷载主要由桩侧摩阻力承担,传至桩端的荷载所占比例很小;并且存在一个最佳芯长和最优截面含芯率。进一步与同等条件下的混凝土单桩的对比研究发现,劲性搅拌桩的性能与混凝土桩十分类似,在一定条件下可以替代混凝土桩使用。
In this paper, the working behavior of reinforced mixing single piles is researched and analyzed by ANSYS software. By analyzing the stress and deformation of the reinforced mixing pile with different concrete core pile length and area replacing ratio in soft soil, it is expressed that the core pile shaft friction undertakes the mass of vertical load of the pile and a little of it can transmit to pile top, it is also founded that an optimum core pile length and an area replacing ratio of the reinforced mixing pile had been exited. Comparing the reinforced mixing pile with the concrete pile under the same condition, it is found that the working behavior of the reinforced mixing single pile is similar to that of the concrete single pile, and, the concrete pile can be taken place by the reinforced mixing pile under a certain condition.

引文

[1]龚晓南．复合地基.杭州:浙江大学出版社,1992
    [2]王立忠,柯瀚,陈云敏等．地震荷载作用下水泥 土搅拌桩的动力分析．振动工程学报,1998,11(4): 416-423
    [3]钱家欢,殷宗泽主编．土工原理与计算(第二版)． 中国水利水电出版社,2000
    [4]凌光容,安海玉．劲性搅拌桩的试验研究．建筑结 构学报,2001;22(2)