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Volume 43 Issue S1
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WANG Lai-cai, HU Hai-jun, WANG Chen, KANG Shun-xiang. Measurement and prediction of water retention curve of remolded loess with different degrees of compaction[J]. Chinese Journal of Geotechnical Engineering, 2021, 43(S1): 204-208. DOI: 10.11779/CJGE2021S1037
Citation: WANG Lai-cai, HU Hai-jun, WANG Chen, KANG Shun-xiang. Measurement and prediction of water retention curve of remolded loess with different degrees of compaction[J]. Chinese Journal of Geotechnical Engineering, 2021, 43(S1): 204-208. DOI: 10.11779/CJGE2021S1037
shu

Measurement and prediction of water retention curve of remolded loess with different degrees of compaction

  • 1.

    College of Water Resources and Architectural Engineering, Northwest A&F University, Yangling 712100, China

  • 2.

    Xinzhou Urban Construction Comprehensive Service Center, Xinzhou 034000, China

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  • Received Date: December 14, 2020
  • Available Online: December 05, 2022
    Graphical Abstract
    • Abstract
  • In order to study the water retention curve of remolded loess with different degrees of compaction, the self-made low suction measurement device, tensiometer and GDS unsaturated soil triaxial apparatus were used to measure the water retention curve of remolded loess with different degrees of compaction.The VG model and the model based on the VG model considering the deformation effect were adopted to fit the water retention curves under a single degree of compaction and all the degrees of all compaction, respectively, and the model parameters were obtained and the accuracy of fitting was analyzed.The results show that the method for measuring the water retention curve by using the multiple methods is feasible.For the fitted VG model, the air-entry value changes with different degrees of compaction, and the parameter n controlling the rate of change of the water retention curve is almost same except for the high degree of compaction, which provides a test basis for the form of the water retention curve function when considering the deformation effect.The water retention curve model considering the deformation effect based on the VG model has sufficient accuracy in predicting water retention curves of loess with different degrees of compaction, and can be used for the prediction of water retention curves of loess fills with different degrees of compaction.
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    • References (11)
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