土岩组合地层旋喷桩止水桩锚支护基坑变形与受力数值分析

刘红军; 于雅琼; 王秀海

土岩组合地层旋喷桩止水桩锚支护基坑变形与受力数值分析 English Version

(中国海洋大学，山东青岛 266100)

详细信息

作者简介:
刘红军(1966– )，男，江苏靖江人，中国海洋大学教授，博导，主要从事环境岩土工程的教学科研工作。

中图分类号: TU473
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出版历程
- 收稿日期: 2012-11-12
- 发布日期: 2012-11-12

Deformation and force analysis of pile anchor for soil-rock dualistic structure based on finite element theory

(Ocean University of China, Qingdao 266100, China)

摘要

摘要: 利用基于有限元原理的设计计算软件Plaxis对青岛三星数码大厦基坑工程进行数值模拟计算，其地表水平位移的计算结果与实测数值吻合较好。并通过对模拟得到的基坑与支护结构的变形结果如基坑总位移、灌注桩水平位移和基坑周边地表沉降以及支护结构的内力分布情况如灌注桩剪力、轴力、弯矩和锚杆内力进行分析发现预应力锚杆能够明显地改变土体中的应力分布，对基坑变形有很好的约束作用。说明在土岩二元结构地层条件下，支护结构的变形主要产生于岩面以上，采用桩锚支护结构是可行的，用Plaxis进行基坑模拟可以用来作为深基坑设计、施工的辅助工具。
- 土岩组合地层 /
- 桩锚支护 /
- 有限元 /
- 基坑
Abstract: The calculated results by using the finite element software, Plaxis, are adopted to simulate the excavation of Samsung Digital Building in Qingdao, which are coincident well with the test data. Through the analysis of the deformation of excavation and the distribution of internal force on supporting structure，it is proved that the deformation above the rock is more obvious, and the prestressed anchor bar is effective in changing the stress distribution in the soil and protecting the foundation from evident displacement. It is effective to use pile anchor in soil-rock dualistic structure. It is helpful to use the Plaxis for the design and construction of excavations.
- soil-rock dualistic structure /
- pile anchor /
- finite element /
- excavation

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参考文献(9)

[1]	向安田, 邓荣贵. 武汉某深基坑锚式连锁灌注排桩变形的有限元分析[J]. 地质灾害与环境保护, 1999, 10(3): 52–56. (XIANG An-tian, DENG Rong-gui. FEM analysis of tiedjogglepile deformation for a deep basal pit in Wuhan[J]. Journal of Geological Hazards and Environment Preservation, 1999, 10(3): 52–56. (in Chinese))
[2]	刘红军, 张庚成, 刘涛. 土岩组合地层基坑工程变形监测分析[J]. 岩土工程学报, 2010, 32(2): 550–553. (LIU Hong-jun, ZHANG Geng-cheng, LIU Tao. Monitoring and analysis of deformation of foundation pits in strata with rock-soil combination[J]. Chinese Journal of Geotechnical Engineering, 2010, 32(2): 550–553. (in Chinese))
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[5]	王江宏, 王春波, 卢广宁. Plaxis在深基坑开挖与支护数值模拟中的应用[J]. 山西建筑, 2007, 33(35): 94–95. (WANG Jiang-hong, WANG Chun-bo, LU Guang-ning. Application of PLAXIS to simulation of foundation excavation and support[J]. Shanxi Architecture, 2007, 33(35): 94–95. (in Chinese))
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土岩组合地层旋喷桩止水桩锚支护基坑变形与受力数值分析 English Version

作者简介: 刘红军(1966– )，男，江苏靖江人，中国海洋大学教授，博导，主要从事环境岩土工程的教学科研工作。

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出版历程

Deformation and force analysis of pile anchor for soil-rock dualistic structure based on finite element theory

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出版历程

目录

作者简介:
刘红军(1966– )，男，江苏靖江人，中国海洋大学教授，博导，主要从事环境岩土工程的教学科研工作。