Soil water characteristics of coarse-grained accumulation soil and their prediction method

LI Jian; LI Shichang; WU Gu; CHEN Shanxiong; YU Fei; DAI Zhangjun; ZHANG Yu

doi:10.11779/CJGE2023S10037

Volume 45 Issue S1

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Chinese Journal of Geotechnical Engineering > 2023 > 45(S1): 50-53. > DOI: 10.11779/CJGE2023S10037

LI Jian, LI Shichang, WU Gu, CHEN Shanxiong, YU Fei, DAI Zhangjun, ZHANG Yu. Soil water characteristics of coarse-grained accumulation soil and their prediction method[J]. Chinese Journal of Geotechnical Engineering, 2023, 45(S1): 50-53. DOI: 10.11779/CJGE2023S10037

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Soil water characteristics of coarse-grained accumulation soil and their prediction method

LI Jian^1,,
LI Shichang^{1, 2},
WU Gu^{1, 2},
CHEN Shanxiong¹,
YU Fei¹,
DAI Zhangjun¹,
ZHANG Yu³

1.
State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan 430071, China
2.
University of Chinese Academy of Sciences, Beijing 100049, China
3.
Sichuan Water Development Group Co., Ltd., Chengdu 610094, China

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Received Date: July 04, 2023
Available Online: November 23, 2023

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Abstract

Abstract

The unsaturated state is an important factor affecting the mechanical properties of soil. In view of the lack of researches on soil-water characteristics of coarse-grained accumulation soil, a large unsaturated coarse grained soil triaxial test system is first introduced. On the basis of experimental researches, the methods and control standards for soil-water characteristic (SWCC) tests on the coarse-grained accumulation soil are summarized. Then, the variation of SWCC of the coarse-grained accumulation soil with different fine-grained soil contents is summarized. Finally, on the basis of the AP model, the determination method for the key parameter α is systematically analyzed, and the optimal method to predict the SWCC of coarse-grained accumulation soil by using the AP model is given.
- coarse-grained accumulation soil,
- soil-water characteristic,
- SWCC,
- prediction method,
- Arya-Paris model

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References (11)

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