Results 21 to 30 of about 2,941 (216)

Deformation, strength and water variation characteristics of unsaturated compacted loess

Case Studies in Construction Materials, 2022
The bearing capacity and safety of geotechnical structures are determined by the shear strength of soil. Soil is usually unsaturated in nature, and variation in unsaturated strength is very complicated.
Xiao Xie, Li Qi, Xiaomeng Li
doaj   +1 more source

Prototype Testing of a Modified Poroelastic Matric Suction Sensor. [PDF]

, 2018
The matric suction is one of the stress state variables used in the interpretation of the engineering behaviour of soils. This thesis documents development of a Poroelastic Matric Suction Sensor (PE sensor).
Jayasinghe, Prabodha
openaire   +3 more sources

MONITORING SOIL MOISTURE SUCTION VALUES USING NEUTRON MOISTURE METER AND EFFECT OF SOME IONS ON NEUTRON COUNT RATIO [PDF]

Journal of Soil Sciences and Agricultural Engineering, 2000
The aim of this work is to derive an equation to monitor the soil moisture suction (matric potential) using neutron scattering method in situ and effect of sodium and chlorine ions on neutron count ratio.
M. El Moniem, M. Sallam, R. El-Gendy,
doaj   +1 more source

An Active Control System for Matric Suction Measurement

Soils and Foundations, 2009
Matric suction is an important stress state parameter in unsaturated soil mechanics. Many studies have been carried out in the past to determine the matric suction through direct and indirect methods. Direct measurement of matric suction has been proven possible with high-suction tensiometer; however high-suction tensiometers are still susceptible to ...
LEONG, E. C., LEE, C. C., LOW, K. S.
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PLASTIC CRACKING OF CONCRETE – THE ROLES OF OSMOTIC AND MATRIC SUCTION [PDF]

, 2005
Plastic cracking of concrete is primarily attributable to desiccation by evaporation from unprotected surfaces. This causes high matric suctions to develop in the pore water in the voids adjacent to these surfaces. Dissolved salts in the pore water generate osmotic suctions. However, the effects of these suctions on the strength of plastic concrete are
Dao, Vinh N. T., Morris, Peter H., Dux, Peter F.   +2 more
openaire   +2 more sources

A method for predicting the influence of matric suction changes on CPT tip resistance [PDF]

E3S Web of Conferences, 2019
The Cone Penetration Test (CPT) is a valuable tool for continuous soil profiling and estimating soil properties. A CPT sounding will often pass through the active zone of an unsaturated soil profile, near the ground surface where moisture conditions and ...
Miller Gerald A., Collins Rodney W.
doaj   +1 more source

Effect of Matric Suction on Monotonic and Cyclic Behaviour of a Low-Plastic Silty Soil from Sakarya Region [PDF]

E3S Web of Conferences
Shallow soil layers subjected to seasonal wetting and drying cycles are typically located above the groundwater table and experience negative pore water pressures. Many geotechnical problems are associated with the behaviour of these soils.
Kocaman Kadir, Mele Lucia, Özocak Aşkın, Flora Alessandro   +3 more
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Experimental study on failure mode and lateral earth pressure distribution of unsaturated sand behind retaining walls under active translation mode

Yantu gongcheng xuebao, 2023
Under the active translation mode, a series of laboratory model tests on the active earth pressure against rigid retaining walls with different wall roughnesses and water contents of backfill are carried out, in which the matric suction and earth ...
DENG Bo 1, 3, YANG Minghui 2, 3, ZHAO Minghua 3
doaj   +1 more source

Measurement of Matric Suction Using Tensiometric and Axis Translation Techniques [PDF]

Geotechnical and Geological Engineering, 2008
Experimental equipment for the measurement of matric suction in unsaturated soils using hydraulic tensiometers and the axis translation technique share a common working principle; that is, the measurement of a pressure differential across a high air entry porous ceramic.
Marinho, F.A.M., Take, W.A., Tarantino, Alessandro   +2 more
openaire   +3 more sources

Study on Soil Water and Suction Stress Characteristics for Unsaturated Clay Soil of Airport Engineering Based on Laboratory Tests

Geofluids, 2021
For the unsaturated soil in Feidong China, this study examined the suction stress characteristics based on the soil-water characteristic curve (SWCC), which was different from traditional research ideas.
Jun Feng, Guangze Zhang
doaj   +1 more source