Theoretical and experimental investigations on the role of transient effects in the water retention behaviour of unsaturated granular soils

被引：16
|
作者：
Milatz, Marius [1 ]
Toerzs, Tom [1 ]
Nikooee, Ehsan [2 ,3 ]
Hassanizadeh, S. Majid [3 ]
Grabe, Juergen [1 ]
机构：
[1] Hamburg Univ Technol TUHH, Inst Geotech Engn & Construct Management, Hamburg, Germany
[2] Shiraz Univ, Dept Civil & Environm Engn, Shiraz, Iran
[3] Univ Utrecht, Dept Earth Sci, Utrecht, Netherlands
来源：
GEOMECHANICS FOR ENERGY AND THE ENVIRONMENT | 2018年 / 15卷
关键词：
Soil-water retention behaviour; Transient effects; Suction stress; Granular soils; Matric suction measurement; CAPILLARY-PRESSURE; POROUS-MEDIA; FLOW; SUCTION; DRAINAGE;
D O I：
10.1016/j.gete.2018.02.003
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
In the present study, an experimental setup is presented and employed to examine the influence of rate of change of saturation on the transient water retention curves of granular soils with a low suction range. The results are evaluated and compared to existing theoretical approaches to model the non-equilibrium soil-water retention behaviour as well as to experimental findings from other researchers. Furthermore, suction stress characteristic curves under non-equilibrium conditions are obtained. Finally, the importance and the application of the results in hydro-mechanical modelling of unsaturated soils are discussed. (c) 2018 Elsevier Ltd. All rights reserved.
引用
收藏
页码：54 / 64
页数：11
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