Numerical Analysis and Consolidation Mechanism Research of Vacuum-Surcharge Preloading Soft Clay

Xu Chao-yang; Liu Ming; Hu Shu-zhi; Yang Xue-qiang

doi:10.12052/gdutxb.150110

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Numerical Analysis and Consolidation Mechanism Research of Vacuum-Surcharge Preloading Soft Clay

更新时间：2026-05-27

- Numerical Analysis and Consolidation Mechanism Research of Vacuum-Surcharge Preloading Soft Clay
- Vol. 34, Issue 1, Pages: 31-39(2017)
- 作者机构：
- 作者简介：
- 基金信息：
- DOI：10.12052/gdutxb.150110
  CLC： U416.0
- Online First：09 January 2017，
  
  Published：2017
- 稿件说明：
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徐朝阳, 刘明, 胡舒之, 杨雪强. 真空-堆载联合预压地基的数值计算及加固机理探讨[J]. 广东工业大学学报, 2017, 34(1): 31-39.

Xu Chao-yang, Liu Ming, Hu Shu-zhi, et al. Numerical Analysis and Consolidation Mechanism Research of Vacuum-Surcharge Preloading Soft Clay[J]. 2017, 34(1): 31-39.
徐朝阳, 刘明, 胡舒之, 杨雪强. 真空-堆载联合预压地基的数值计算及加固机理探讨[J]. 广东工业大学学报, 2017, 34(1): 31-39. DOI： 10.12052/gdutxb.150110.

Xu Chao-yang, Liu Ming, Hu Shu-zhi, et al. Numerical Analysis and Consolidation Mechanism Research of Vacuum-Surcharge Preloading Soft Clay[J]. 2017, 34(1): 31-39. DOI： 10.12052/gdutxb.150110.

摘要

以珠海横琴岛多联供燃气能源站项目地基处理工程为算例，基于修正剑桥模型及考虑软土的渗透特性，利用ABAQUS软件对二维平面应变真空-堆载联合预压问题进行了数值模拟，对软土竖向沉降、孔隙水压力以及水平位移分布等进行了分析，并与实测值进行了对比.从计算结果可知，由于加固机理的不同，真空-堆载联合预压加固软土地基有更好的加固效果.

Abstract

A soft clay consolidation project by using vacuum-surcharge preloading method was conducted in Zhuhai about two year ago

and finite element numerical analysis under two-dimensional plane strain condition

in which modified Cam model and soft clay permeating characteristics are considered

is finished in details for the project

with corresponding calculating results such as soft clay vertical settlement

horizontal displacement

and pore water pressure

et al. beengiven and compared with the project measuring results. Based on the calculation results

the vacuum-surcharge preloading method for the soft clay has a better consolidation effect in practice because of its effective consolidation mechanism.

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references

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