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

被引：15

作者：

Zhai, Qian ^{[1
]}

Ye, Weimin ^{[2
]}

Rahardjo, Harianto ^{[3
]}

Satyanaga, Alfrendo ^{[4
]}

Du, Yanjun ^{[1
]}

Dai, Guoliang ^{[1
]}

Zhao, Xueliang ^{[1
]}

机构：

[1] Southeast Univ, Key Lab Concrete & Prestressed Concrete Struct, Minist Educ, Nanjing 210096, Peoples R China

[2] Tongji Univ, Key Lab Geotech & Underground Engn, Minist Educ, Shanghai 200092, Peoples R China

[3] Nanyang Technol Univ, Sch Civil & Environm Engn, Block N1,Nanyang Ave, Singapore 639798, Singapore

[4] Nazarbayev Univ, Sch Engn & Digital Sci, Dept Civil & Environm Engn, Kabanbay Batyr Ave 53, Nur Sultan 010000, Kazakhstan

来源：

CANADIAN GEOTECHNICAL JOURNAL | 2022年 / 59卷 / 09期

基金：

中国国家自然科学基金;

关键词：

hydraulic conductivity; capillary flow; film flow; estimation; PERMEABILITY FUNCTION; POROUS-MEDIA; WATER; SURFACES;

D O I：

10.1139/cgj-2021-0361

中图分类号：

P5 [地质学];

学科分类号：

0709 ; 081803 ;

摘要：

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.

引用

页码：1679 / 1684

页数：6

共 50 条

[1] Estimation of wetting hydraulic conductivity function for unsaturated sandy soil
Zhai, Qian
Rahardjo, Harianto
Satyanaga, Alfrendo
Zhu, Yiyao
Dai, Guoliang
Zhao, Xueliang
ENGINEERING GEOLOGY, 2021, 285
[2] Application of a geotechnical centrifuge for estimation of unsaturated soil hydraulic conductivity
Singh, DN
Kuriyan, SJ
Madhuri, V
JOURNAL OF TESTING AND EVALUATION, 2001, 29 (06) : 556 - 562
[3] Stochastic analysis of unsaturated flow with the normal distribution of soil hydraulic conductivity
Huang, Guan-Hua
Zhang, Ren-Duo
Journal of Hydrodynamics, 2003, 15 (06) : 1 - 15
[4] Prediction of unsaturated soil hydraulic conductivity with electrical conductivity
Doussan, Claude
Ruy, Stephane
WATER RESOURCES RESEARCH, 2009, 45
[5] UNSATURATED HYDRAULIC CONDUCTIVITY OF A TILLED CLAY SOIL
DOUGLAS, E
MCKYES, E
TAYLOR, F
NEGI, S
RAGHAVAN, GSV
CANADIAN AGRICULTURAL ENGINEERING, 1980, 22 (02): : 153 - 161
[6] Estimating Unsaturated Hydraulic Conductivity in Unsaturated Soil Using Soil Moisture Sensors
Tian, Ong Sin
Giap, Goh Eng
Rudiyanto
Ahmad, Mohammad Fadhli
Aziz, Roslaili Abdul
INTERNATIONAL JOURNAL OF INTEGRATED ENGINEERING, 2023, 15 (01): : 265 - 272
[7] Simplified estimation of unsaturated soil hydraulic conductivity using bulk electrical conductivity and particle size distribution
Neyshabouri, Mohammad Reza
Rahmati, Mehdi
Doussan, Claude
Behroozinezhad, Boshra
SOIL RESEARCH, 2013, 51 (01) : 23 - 33
[8] Unsaturated Hydraulic Conductivity Estimation of a Forest Soil Assuming a Stochastic-Convective Process
Homolak, Marian
Pichler, Viliam
Jury, William A.
Capuliak, Jozef
O'Linger, JoAnn
Gregor, Juraj
SOIL SCIENCE SOCIETY OF AMERICA JOURNAL, 2010, 74 (01) : 292 - 300
[9] Estimation of unsaturated hydraulic conductivity using soil suction measurements obtained by an insertion tensiometer
Singh, DN
Kuriyan, SJ
CANADIAN GEOTECHNICAL JOURNAL, 2003, 40 (02) : 476 - 483
[10] Parameter estimation of unsaturated soil hydraulic properties from transient flow processes
Simunek, J
van Genuchten, MT
Gribb, MM
Hopmans, JW
SOIL & TILLAGE RESEARCH, 1998, 47 (1-2): : 27 - 36

← 1 2 3 4 5 →