Influence Mechanism of Static and Dynamic Loading on Adsorbed Bound Water and Deformation in High Liquid Limit Soils

Authors

FANG Zhongwang, Hainan Transportation Engineering Construction Bureau, Haikou, Hainan 570100, ChinaFollow
ZHOU Shiji e, School of Transportation, Changsha University of Science & Technology, Changsha, Hunan 410114, China
XIAO Yupeng, College of Civil Engineering and Architecture, Guilin University of Tech nology, Guilin, Guangxi 541004, China
PENG Xin, Hainan Transportation Engineering Construction Bureau, Haikou, Hainan 570100, China
ZHANG Rui, School of Transportation, Changsha University of Science & Technology, Changsha, Hunan 410114, China

Abstract

In order to reveal the evolution law of adsorbed bound water and the deformation characteristics of high liquid limit soil under static and dynamic loading,Hainan high liquid limit soil and Hunan clayey sand were selected as comparative samples.Through consolidation,consolidation-creep,and dynamic triaxial tests,the deformation patterns of high liquid limit soil under different loading conditions were obtained.By combining nuclear magnetic resonance tests,the variation pattern of adsorbed bound water content in specimens before and after the consolidation and dynamic triaxial tests was studied.The results show that under static loading,the compression coefficient of high liquid limit soil meets the requirements of the Specifications for Design of Highway Subgrades (JTG D 30—2019 ) for subgrade fill materials.The adsorbed bound water content is basically stable,and the consolidation-creep deformation is small.Under dynamic loading,the elastic strain and permanent axial strain of the specimen increase with increasing loading amplitude.Dynamic loading significantly reduces the adsorbed bound water content in the high liquid limit soil,leading to the large plastic cumulative deformation of the soil under cyclic loading.The study can provide a reference for the engineering application of high liquid limit soils as lower embankment fill.

Publication Date

12-24-2025

DOI

10.14048/j.issn.1671-2579.2025.06.003

First Page

17

Last Page

24

Submission Date

December 2025

Recommended Citation

Zhongwang, FANG; Shiji e, ZHOU; Yupeng, XIAO; Xin, PENG; and Rui, ZHANG (2025) "Influence Mechanism of Static and Dynamic Loading on Adsorbed Bound Water and Deformation in High Liquid Limit Soils," Journal of China & Foreign Highway: Vol. 45: Iss. 6, Article 3.
DOI: 10.14048/j.issn.1671-2579.2025.06.003
Available at: https://zwgl1980.csust.edu.cn/journal/vol45/iss6/3

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