[1]郭院成,杨文,周同和..水泥土连拱支护结构的三维有限元分析[J].郑州大学学报(工学版),2008,29(01):66-69.
　GUO Yuancheng,Yang Wen,Zhou Tonghe.Three-dimensional finite element analysis of cement-soil continuous arch support structure[J].Journal of Zhengzhou University (Engineering Science),2008,29(01):66-69.

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水泥土连拱支护结构的三维有限元分析()

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《郑州大学学报(工学版)》[ISSN:1671-6833/CN:41-1339/T]

卷:

29

期数:

2008年01期

页码:

66-69

栏目:

出版日期:

1900-01-01

文章信息/Info

Title:

Three-dimensional finite element analysis of cement-soil continuous arch support structure

作者:

郭院成; 杨文; 周同和.

郑州大学,土木工程学院,河南,郑州,450001, 国家电力公司,中南勘测设计研究院,湖南,长沙,410014, 郑州大学,综合设计研究院,河南,郑州,450002

Author(s):

GUO Yuancheng; Yang Wen; Zhou Tonghe

关键词:

基坑支护;  水泥土连拱;  土压力;  拱体;  有限元;  数值模拟

Keywords:

foundation pit support;  cement-soil arches;  earth pressure;  arches;  finite elements;  Numerical simulation

文献标志码:

A

摘要:

采用有限元方法,建立了水泥土连拱支护结构考虑结构与土共同作用的三维模型,对该结构进行了数值模拟计算.计算结果分析表明,其墙后土压力大小介于静止土压力与朗肯土压力之间,沿竖向呈三角形分布,沿水平向介于水平均布与径向均布之间,土压力作用在支护结构后将沿水平及竖向分配,水平拱体分担的荷载比例最大值在60%～70%之间,水泥土拱基本处于全截面受压状态,拱脚桩在开挖面以上的受力模式与悬臂桩类似,沿全长其弯矩最大值在开挖面位置.

Abstract:

Using the finite element method, a three-dimensional model of cement-soil arch support structure considering the joint action of structure and soil is established, and the structure is numerically simulated and calculated. The analysis of the calculation results shows that the earth pressure behind the wall is between the static earth pressure and the Rankine earth pressure, and is distributed in a triangle along the vertical direction, between horizontal and radial uniform distribution along the horizontal direction, the earth pressure will be distributed along the horizontal and vertical directions after the support structure, the maximum load ratio shared by the horizontal arch is between 60%~70%, the cement soil arch is basically in the full-section compression state, the force mode of the arch foot pile above the excavation surface is similar to that of the cantilever pile, and the maximum bending moment of the whole length is at the excavation surface position.

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