Study on Passive Earth Pressure of Retaining Wall in Transversely Isotropic Soil

Chen Tao; Yang Xue-qiang; Liu Pan; Zheng Li-ting; Zhou Ruo-yang

doi:10.12052/gdutxb.190064

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Study on Passive Earth Pressure of Retaining Wall in Transversely Isotropic Soil

更新时间：2026-05-27

- Study on Passive Earth Pressure of Retaining Wall in Transversely Isotropic Soil
- Vol. 37, Issue 6, Pages: 85-91(2020)
- 作者机构：
  
  广东工业大学　土木与交通工程学院,广东,广州,510006
- 作者简介：
- 基金信息：
- DOI：10.12052/gdutxb.190064
  CLC： TU432
- Online First：02 November 2020，
  
  Published：2020
- 稿件说明：
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陈涛, 杨雪强, 刘攀, 郑丽婷, 周若洋. 横观各向同性土体挡土墙被动土压力研究[J]. 广东工业大学学报, 2020, 37(6): 85-91.

Chen Tao, Yang Xue-qiang, Liu Pan, et al. Study on Passive Earth Pressure of Retaining Wall in Transversely Isotropic Soil[J]. 2020, 37(6): 85-91.
陈涛, 杨雪强, 刘攀, 郑丽婷, 周若洋. 横观各向同性土体挡土墙被动土压力研究[J]. 广东工业大学学报, 2020, 37(6): 85-91. DOI： 10.12052/gdutxb.190064.

Chen Tao, Yang Xue-qiang, Liu Pan, et al. Study on Passive Earth Pressure of Retaining Wall in Transversely Isotropic Soil[J]. 2020, 37(6): 85-91. DOI： 10.12052/gdutxb.190064.

摘要

大多天然土体具有横观各向同性的特点

在同一个模型中

采用分块处理的方法来讨论横观各向同性土的被动土压力变化; 基于最小二乘法原理和组构张量理论

研究位移一次和分步多次施加两种方法

计算土体大主应力方向与沉积面法线方向之间的夹角变化

得到模型分块后各分块新的土体强度参数

和

进而分析各向异性下的被动土压力变化。研究表明: 考虑土体横观各向同性后

达到极限平衡时土体经多次位移施加得到的被动土压力比一次位移施加要小

且接近库伦土压力理论解; 土体沉积面倾斜对被动土压力的影响要比沉积面水平时引起的影响更为显著; 4种屈服准则下得到的被动土压力的差异大小与理论分析相符合。

Abstract

Most natural soils have the characteristics of transverse isotropy. Using the method of block processing in the same model to discuss the change of passive earth pressure of transverse isotropic soils

based on the principle of least squares and the theory of fabric tensor

the two methods of one-step and multi-step displacement applications are studied to calculate the angle change between the direction of the major principal stress of the soil and the normal direction of the sedimentary surface. New soil strength parameters

and

in each block are obtained

and then the change of passive earth pressure under soil anisotropy is analyzed. When reaching the passive limit equi

librium state in the transverse isotropy soil

the research shows that the passive earth pressure obtained by applying multi-step displacement method

which is close to the theoretical solution of Coulomb's passive soil pressure

is smaller than that of applying one-step displacement method. The change of earth pressure is more significant when the sedimentary surface being oblique than that of the sedimentary surface being horizontal. The differences in passive earth pressures obtained under the four type yield criteria are consistent with theoretical analyses.

关键词

Keywords

references

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刘亚栋. 考虑土体强度各向异性的边坡稳定性研究[D]. 广州: 广东工业大学, 2018.

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