Review on researches on horizontal swelling pressure of expansive soils after humidification

ZHANG Si-hua; YUAN Chong-xuan; LIU Yun-long; XIA Yan-yan

doi:10.11779/CJGE2022S1026

Volume 44 Issue S1

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Chinese Journal of Geotechnical Engineering > 2022 > 44(S1): 143-147. > DOI: 10.11779/CJGE2022S1026

ZHANG Si-hua, YUAN Chong-xuan, LIU Yun-long, XIA Yan-yan. Review on researches on horizontal swelling pressure of expansive soils after humidification[J]. Chinese Journal of Geotechnical Engineering, 2022, 44(S1): 143-147. DOI: 10.11779/CJGE2022S1026

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Review on researches on horizontal swelling pressure of expansive soils after humidification

Department of Civil Engineering, Zhengzhou University, Zhengzhou 450001, China

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Received Date: September 30, 2022
Available Online: February 06, 2023

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Abstract

Abstract

The expansive soil is a kind of high plastic clay rich in montmorillonite, illite and kaolinite, in which volume expansion will occur under humidification. If the lateral swelling deformation is constrained, the horizontal swelling pressure will be generated, which will cause great harm to geotechnical engineering facilities. In recent years, in order to reduce the relative losses, domestic and foreign scholars have performed a large number of laboratory tests and developed new theoretical methods and prediction models for horizontal swelling pressure. The influence factors of swelling characteristics of expansive soils and the influence laws of various factors on the swelling characteristics are analyzed, and the influence mechanism of various factors is studied from the perspective of microstructure. Finally, the practical measures to reduce the lateral horizontal swelling force are proposed, the importance of studying the horizontal swelling force of fissured expansive soils is analyzed, and the future research direction is prospected.
- expansive soil,
- lateral swelling pressure,
- expansion characteristic,
- swelling mechanism

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References (23)

References

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