Analysis of model tests on soft soil subgrade reinforced by geogrid

WANG Wei; WANG Jian; XUE Jian-hao; XUE Zheng; OU Dan-ping

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Analysis of model tests on soft soil subgrade reinforced by geogrid

更新时间：2026-06-25

- Analysis of model tests on soft soil subgrade reinforced by geogrid
- Vol. 26, Issue 12, (2005)
- 作者机构：
  
  江南大学土木工程系,江苏,无锡,214122
- 作者简介：
- 基金信息：
- DOI：
  CLC： TU411
- Online First：12 January 2014，
  
  Published：2005
- 稿件说明：
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WANG Wei, WANG Jian, XUE Jian-hao, et al. Analysis of model tests on soft soil subgrade reinforced by geogrid[J]. 2005, 26(12).
DOI：

WANG Wei, WANG Jian, XUE Jian-hao, et al. Analysis of model tests on soft soil subgrade reinforced by geogrid[J]. 2005, 26(12). DOI：

摘要

基于压缩、剪切、拉拔、抗拉试验结果分析了土工格栅加筋土的力学特性。通过室内模型试验研究了加土工格栅和不加土工格栅地基土的侧向位移和竖向位移随深度的变化规律、位移场、应力场、应变场。结果表明，土工格栅加筋垫层能有效地改变和阻止塑性区的形成和发展，对下卧软土地基起到扩散应力、均化应力的作用，控制软土地基塑性变形，增强地基延性和刚度，有效地控制地基竖向位移和侧向位移，增强地基的抗剪强度，增强整个地基的稳定性，提高了加筋土体的承载能力，为实际工程应用提供了可靠的理论依据。

Abstract

The mechanical characteristics are analysed based on compression test

shear test

tensile test

extraction test of soft soil reinforced by geogrid. Through laboratory model tests

the following studies are performed: the lateral and vertical displacement of the variation with depth

displacement field

stress field

strain field of the foundation reinforced and non-reinforced by geogrid. The results show that it is feasible to change and to resist the formation and development of plastic zone; the influence of reinforced cushion to spread and even up distribute stress of soft soil of substratum

and as well the role of geogrid

to control plastic deformation

to strengthen ductility and stiffness

to decrease lateral and vertical displacements

to strengthen shear strength of soft soil foundation

to improve the stability of the foundation and bearing capacity of reinforced soft soil; the study provides reliable basis for engineering applications.

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