NUMERICAL ANALYSIS OF THE LARGE DEFORMATION THEORY DURING DYNAMIC CONSOLIDATION ON SOILS BY THICK FILL

Xu Changjie; Zhang Zhengwei

doi:10.13204/j.gyjz200406016

Volume 34 Issue 6

Dec. 2014

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Xu Changjie, Zhang Zhengwei. NUMERICAL ANALYSIS OF THE LARGE DEFORMATION THEORY DURING DYNAMIC CONSOLIDATION ON SOILS BY THICK FILL[J]. INDUSTRIAL CONSTRUCTION, 2004, 34(6): 48-51,14. doi: 10.13204/j.gyjz200406016

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Xu Changjie, Zhang Zhengwei. NUMERICAL ANALYSIS OF THE LARGE DEFORMATION THEORY DURING DYNAMIC CONSOLIDATION ON SOILS BY THICK FILL[J]. INDUSTRIAL CONSTRUCTION, 2004, 34(6): 48-51,14. doi: 10.13204/j.gyjz200406016

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NUMERICAL ANALYSIS OF THE LARGE DEFORMATION THEORY DURING DYNAMIC CONSOLIDATION ON SOILS BY THICK FILL

doi: 10.13204/j.gyjz200406016

Xu Changjie¹,
Zhang Zhengwei²

1.
1. Geotechnical Engineering Institute,Zhejiang University Hangzhou 310027;
2.
2. Guangsha Real Estate Group Hangzhou 310006

Received Date: 2003-10-03
Publish Date: 2004-06-20

Abstract

Abstract

There is a local large deformation in the peripheral foundation soil of the compacting spots,so the mechanical derivation of infinitesimal strain can't eliminate the effect of a rigid displacement,and the large deformation theory must be used to analyze the impact course of dynamic consolidation to foundation soil.The improved artificial boundary conditions are applied to simulate waves propagation at the boundary.Liquefaction element is used in the calculation program for ensuring the mesh stability of the model.Finally,an engineering example is discussed to verify the reliability of this model.
- dynamic consolidation,
- large deformation,
- artificial boundary condition,
- material damping,
- finite element method

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References(9)

References

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吴铭炳,王钟琦.强夯机理的数值分析.工程勘察,1989(3):1～5

[3] 朱继永,许光泉,龚固培.强夯法有效加固范围的数值模拟.煤田地质与勘探,2001,29(2):39～43

[4] Gu,F H.Lee.Ground Response to Dynamic Compaction of DrySand.Geotechnique,2000,52(7):481～493

[5] 钱家欢,帅方生.边界元法在地基强夯加固中的应用.中国科学(A辑),1987(3):329～336

[6] 蒋鹏,李荣强,孔德坊.强夯大变形冲击碰撞数值分析.岩土工程学报,2000,22(2):222～226

[7] 何君毅,林祥都.工程结构非线性问题的数值解法.北京:国防工业出版社,1994

[8] 凌道盛.冲击和地震荷载作用下地基的响应动力分析:[博士后研究工作报告].杭州:浙江大学,1999

[9] 孔令伟,袁建新.强夯的边界接触应力与沉降特性研究.岩土工程学报,1998,20(2):86～92

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