Estimation of the hydraulic conductivity of unsaturated soil incorporating the film flow-Reference-Cited by-同舟云学术

Estimation of the hydraulic conductivity of unsaturated soil incorporating the film flow

Published:2022-09-01 Issue:9 Volume:59 Page:1679-1684
ISSN:0008-3674
Container-title:Canadian Geotechnical Journal
language:en
Short-container-title:Can. Geotech. J.

Author:

Zhai Qian¹^ORCID,Ye Weimin²^ORCID,Rahardjo Harianto³,Satyanaga Alfrendo⁴,Du Yanjun¹^ORCID,Dai Guoliang¹^ORCID,Zhao Xueliang¹

Affiliation:

1. Key Laboratory of Concrete and Prestressed Concrete Structures of Ministry of Education, Southeast University, Nanjing 210096, China

2. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China

3. School of Civil and Environmental Engineering, Nanyang Technological University, Block N1, Nanyang Ave., Singapore 639798, Singapore

4. Department of Civil and Environmental Engineering, School of Engineering and Digital Sciences, Nazarbayev University, Kabanbay Batyr Ave., 53, Nur-Sultan 010000, Kazakhstan

Abstract

In the conventional method for the estimation of the hydraulic conductivity of unsaturated soil, only the capillary water is considered in the estimation. However, it is known that a water film can be formed around soil particles due to the adsorptive force. The water may migrate in the soil through the water film. As a result, both water flow in the capillary water and water film should be considered in the estimation. In this paper, a new equation was proposed for the estimation of the hydraulic conductivity of unsaturated soil by considering the film flow. The proposed method was verified with the experimental data from the literature. It is recommended that both capillary water flow and film flow should be considered in the estimation of the hydraulic conductivity of unsaturated soil.

Publisher

Canadian Science Publishing

Subject

Civil and Structural Engineering,Geotechnical Engineering and Engineering Geology

Link

https://cdnsciencepub.com/doi/pdf/10.1139/cgj-2021-0361

Reference13 articles.

1. Equations for the soil-water characteristic curve

2. Predicting the permeability function for unsaturated soils using the soil-water characteristic curve

3. Repulsive Forces Between Charged Surfaces in Water, and the Cause of the Jones-Ray Effect

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