Results 141 to 150 of about 1,019 (183)
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Effect of rainfall on matric suctions in a residual soil slope
Canadian Geotechnical Journal, 1996A slope stability study involving shallow slip surfaces should include the effect of negative pore-water pressures in a slope. A field instrumentation program was carried out to monitor negative pore-water pressure (i.e., in situ matric suction) in a residual soil slope in Singapore.
Rahardjo, Harianto +3 more
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Matric suction characteristics and its influences on the stability of landslide
2011 International Conference on Electric Technology and Civil Engineering (ICETCE), 2011Matric suction has vital influences on the stability of landslide. According to the existed researches, some issues have been researched, such as the measurements and control technique for matric suction of unsaturated soils, the suction influences on strength of unsaturated soils, and the suction mechanism on unsaturated soil of landslide.
null Xiang-hui Hu, null Sheng-guo Cheng
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On equations for the total suction and its matric and osmotic components
Cement and Concrete Research, 2008A clear fundamental understanding of suctions is crucial for the study of the behaviour of plastic cement mortar and concrete, including plastic shrinkage cracking. In this paper, the expression relating the change in free energy of the pore water with an isothermal change in pressure is first derived.
Dao, Vinh N.T. +2 more
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EFFECT OF MATRIC AND OSMOTIC SUCTION ON THE EMERGENCE OF WHEAT AND BARLEY
Canadian Journal of Plant Science, 1988Total emergence of wheat and barley was not affected my matric and osmotic suctions up to 0.5 and 0.9 MPa, respectively. Above 1.5 MPa matric suction, seeds germinated but did not emerge. Emergence rate decreased with increasing matric and osmotic suctions, except at high suctions where the reverse was observed.Key words: Emergence, osmotic suction ...
X. HAO, E. DE JONG
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Soil matric suction as an indicator of the mud flow occurrence
2009The Slano blato landslide is one of the largest landslides in Slovenia with a volume of more than 1 MIO m3. In dry periods the landslide behaves as a group of several slow moving landslides. In wet periods it moves mainly as a viscous earth flow with occurrences of rapid mudflows. The transformation from the slow moving landslide to the much faster mud
Petkovšek A. +4 more
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Numerical Modeling of a Thermal Conductivity Matric Suction Sensor
Geotechnical Testing Journal, 1994Abstract Thermal conductivity matric suction sensors appear to be a promising device for the measurement of suction in soil. The technique indirectly measures matric suction by measuring the thermal conductivity of a ceramic block. This paper uses both a spherical and a cylindrical porous medium to simulate the heat flow in a thermal ...
A Xing, DG Fredlund
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The relationship between thermal conductivity and matric suction of soils
2021<p>The soil thermal conductivity (&#955;) and matric suction of soil water (h, the negative of matric potential) relationship has been widely used in land surface models for estimating soil temperature and heat flux following the McCumber and Pielke (1981, MP81) &#955;-h model.
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Effect of Fines and Matric Suction on the Collapsibility of Sandy Soils
2019New geotechnical challenges are encountered due to construction of new urban communities in desert, among which is dealing with collapsible soil formations. Collapsible soils are metastable material, traditionally defined as an unsaturated soil that experiences a radical rearrangement of particles and significant reduction of volume upon wetting.
Mohamed A. Alassal +2 more
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Development of a Soil Matric Suction Direct Measurement Probe
2015This paper presents the development of a soil matric suction direct measurement probe, based on the instrument originally designed at the Imperial College by A. M. Ridley and J.M. Burland. The prototype is capable of measuring suction values up to 1500 kPa with a theoretical resolution of 7.5kPa.
Rodari Germán +3 more
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