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Journal of Central South University

, Volume 25, Issue 2, pp 432–447 | Cite as

Prediction of soil–water characteristic curve for Malan loess in Loess Plateau of China

  • Ping Li (李萍)
  • Tong-lu Li (李同录)
  • S. K. Vanapalli
Article
  • 64 Downloads

Abstract

To predict the soil–water characteristic curve (i.e. SWCC) of natural and remoulded Malan loess from soil physical properties, one-point methods for determining the SWCC that are much simpler than experimental methods are proposed. The predicted SWCC is presented in the form of the BRUTSAERT equation, in which the four model parameters can be estimated from soil physical properties using the best correlations obtained in the present study along with one measured data point. The proposed one-point methods are validated using the measured SWCC data reported in the literature. The results of validation studies suggest that the proposed one-point methods can provide reasonable prediction of the SWCC for natural and remoulded Malan loess. The measured data point should be within the transition zone; the measured suction is suggested between 25 to 100 kPa for natural loess, while between 100 to 500 kPa for remoulded loess.

Key words

soil–water characteristic curve Malan loess natural loess remoulded loess one-point method physical properties 

基于物理特征的马兰黄土土–水特征曲线的预测方法

摘要

总结了已有的预测土–水特征曲线的方法; 评价了已有的黄土土–水特征曲线的研究; 提出并验证了基于物理特征预测原状及重塑马兰黄土脱湿土–水特征曲线的一点法; 比较了原状和重塑马兰黄土的土–水特征曲线。

关键词

土–水特征曲线 马兰黄土 原状黄土 重塑黄土 一点法 物理特征 

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Notes

Acknowledgement

The first author gratefully acknowledges her appreciation to the Chinese Scholarship Council, which funded her Joint PhD research program. The third author thanks the support from Natural Sciences and Engineering Research Council of Canada (NSERC) for his research programs.

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Copyright information

© Central South University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  • Ping Li (李萍)
    • 1
  • Tong-lu Li (李同录)
    • 2
  • S. K. Vanapalli
    • 3
  1. 1.Department of GeologyNorthwest UniversityXi’anChina
  2. 2.School of Geological & Surveying EngineeringChang’an UniversityXi’anChina
  3. 3.Department of Civil EngineeringUniversity of OttawaOttawaCanada

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