Results 91 to 100 of about 2,941 (216)

Matric suction, swelling and collapsible characteristics of unsaturated expansive soils

, 2018
Unsaturated expansive soils are recognized as one of the most problematic soils owing to its swelling-shrinkage characteristics. The presence of such soils in highway/railway embankments, slopes and earthen dam sites manifests various critical issues ...
Pandya, Saloni, Sachan, Ajanta
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Effects of Soil Properties and Illumination Intensities on Matric Suction of Vegetated Soil

, 2019
Matric suction induced by evapotranspiration is an important parameter for determining the hydraulic mechanisms of vegetation on slope stability. Despite evapotranspiration closely associated with atmospheric parameters and soil conditions, the influence
Lijun Su, Zhenyao Xia, Hai Xiao, Daxiang Liu, Qi Liu, Wennian Xu   +5 more
core   +1 more source

A suction probe for direct measurement of high matric suction

, 2008
A suction probe and a saturation system were developed to measure the negative pore water pressure (matric suction) directly. After adopting purposely designed saturation procedures, the probe was able to measure suction up to 500kPa. The accuracy of the
Chen, Rui, Ng, Charles W.W., Zhang, Min
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Proposed method for obtaining representative water content and matric suction of a cracked soil

, 2012
Water content and matric suction vary significantly throughout a cracked soil during a drying process. Therefore, it is difficult to obtain representative values of water content and matric suction of a cracked soil. In this paper, a method for obtaining
Krisnanto, S., Rahardjo, Harianto, Leong, Eng Choon   +2 more
core  

An equation for predicting shear strength envelope with respect to matric suction

, 2004
Determining the shear strength parameters of unsaturated soils generally involves costly, time-consuming and sophisticated testing programme. This paper proposes a new method for prediction of shear strength with respect to matric suction.
Söylemez M., Kayadelen C., Keskin M.S., Tekinsoy M.A.   +3 more
core   +1 more source

Stress-dependent properties of physicochemical interaction of unsaturated saline clay

Yantu gongcheng xuebao
To reveal the impact of physicochemical effects on the compressive behaviors of unsaturated clay containing salt solution and its dependence properties on stress level, one-dimensional compression tests are performed on the specimens with pores ...
WANG Liye 1, ZHOU Fengxi 1, 2, ZHOU Lizeng 3, LIANG Yuwang 1
doaj   +1 more source

Total, matric and osmotic suction measurement of compacted soils

, 2017
Compacted soils are unsaturated and has total suction which consists of matric and osmotic suctions. The objective of this project is to measure the three types of suctions of soils compacted by different Proctor efforts and assess the interrelations ...
Cui, Xiao
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The change of matric suction due to heavy vehicle crossing

, 2014
Classical soil mechanics for unsaturated soils mainly deals with quasi static loading conditions because most laboratory tests, such as triaxial tests, are time consuming due to equilibration processes.
Grabe, Jürgen, Milatz, Marius
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SUCTION MEASUREMENTS AND WATER RETENTION IN UNSATURATED SOILS [PDF]

, 2008
Techniques for testing unsaturated soils have been investigated by the author where the measurement and control of parameters were undertaken directly. Suction was measured and controlled with a new high suction tensiometer and water content through mass
Lourenço, Sérgio Duarte Nunes
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Direct matric suction measurement of unsaturated soils

, 2015
In general, residual soils are unsaturated and have negative pore-water pressure. Hence, measuring the pore-water pressure of such soils is not as straightforward as measuring pore-water pressure of saturated soils.
Ho, Lun Fa
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