A practical approach for predicting lateral pressures 
on expansive soil retaining walls with geosynthetic inclusions

FAN Ke-wei; ZOU Wei-lie; WANG Liu-jiang; LIAO Jie; LIU Si-hong

doi:10.16285/j.rsm.2023.1089

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A practical approach for predicting lateral pressures on expansive soil retaining walls with geosynthetic inclusions

更新时间：2026-06-25

- A practical approach for predicting lateral pressures on expansive soil retaining walls with geosynthetic inclusions
- Vol. 44, Issue 11, Pages: 3182-3190(2023)
- 作者机构：
  
  1. 河海大学岩土力学与堤坝工程教育部重点实验室,江苏,南京,210098
  2. 武汉大学土木建筑工程学院,湖北,武汉,430072
  3. 河海大学水利水电学院,江苏,南京,210098
  4. 三江学院土木工程学院,江苏,南京,210012
- 作者简介：
- 基金信息：
- DOI：10.16285/j.rsm.2023.1089
  CLC： TU476.4
- Online First：28 November 2023，
  
  Published：2023
- 稿件说明：
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FAN Ke-wei, ZOU Wei-lie, WANG Liu-jiang, et al. A practical approach for predicting lateral pressures on expansive soil retaining walls with geosynthetic inclusions[J]. 2023, 44(11): 3182-3190.
DOI：

FAN Ke-wei, ZOU Wei-lie, WANG Liu-jiang, et al. A practical approach for predicting lateral pressures on expansive soil retaining walls with geosynthetic inclusions[J]. 2023, 44(11): 3182-3190. DOI： 10.16285/j.rsm.2023.1089.

摘要

回填膨胀土吸水至饱和状态时，土工合成材料缓冲层减压膨胀土挡墙墙后侧向压力的预测方法，对减压膨胀土挡墙的设计至关重要。假定膨胀土变形由吸水膨胀变形和外力压缩变形组成，以弹性理论为基础推导了膨胀土弹性模量和膨胀力的计算公式，公式参数通过膨胀土有荷膨胀试验确定；基于减压挡墙中回填膨胀土吸水至饱和时土工合成材料缓冲层与回填膨胀土间相互作用关系与变形协调条件，建立了一种土工合成材料缓冲层减压膨胀土挡墙侧向压力的实用预测方法。根据土工袋缓冲层减压膨胀土挡墙和土工泡沫板缓冲层减压膨胀土挡墙模型试验结果，对提出的预测方法进行了验证，结果表明通过预测方法得到的计算结果与模型试验中实测结果具有良好的一致性。

Abstract

The development of a prediction method for the lateral pressure exerted on expansive soil retaining walls with geosynthetic inclusions has been identified as vital for the design of such structures when saturation of the backfilled expansive soil is achieved. It is assumed that the deformations of expansive soil are composed of swelling deformation due to water absorption by the soil and compression deformation induced by external loads. Within the tenets of elasticity

equations were devised to estimate the elastic modulus and swelling force of expansive soil

respectively. Parameters for these equations were determined through the swelling tests on the expansive soil with loadings. Based on the interaction relationship between the geosynthetic inclusions and the backfilled expansive soil

a practical prediction method for the lateral pressure exerted on expansive soil retaining walls with geosynthetic inclusions was developed when the expansive soil reached saturation

and its performance was fully validated by model tests of the expansive soil retaining wall with soilbag and expanded polystyrene geofoam (EPS) inclusions

respectively. It was observed that the lateral pressures calculated using the proposed method exhibited a well agreement with experimental measurements.

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