Results 221 to 230 of about 1,724 (260)

Soil Moisture Determination in Gravelly Soils with Time Domain Reflectometryd

Transactions of the ASAE, 1989
ABSTRACT TIME domain reflectometry (TDR) measurement of soil moisture in sandy-gravelly soils is examined. It is found that the empirical TDR-soil moisture relationship derived by Topp et al. (1980) is valid for these coarse textures. Two soils, sand and sandy loam, were studied at moisture contents ranging from air dry to saturation and with varying ...
null C.E.C. Drungil, null K. Abt, null T.J. Gish   +2 more
openaire   +1 more source

Undrained torsional shear tests on gravelly soils

Landslides, 2004
Slope instability and landslides are frequently triggered during heavy rainfalls in mountainous areas. Geomaterials that are subject to this type of failure normally include coarse grains, which are made by weathering of mother rocks. These materials are called sandy gravel or gravelly sand in soil mechanics, depending upon the amount of gravelly ...
Karma Kuenza, Ikuo Towhata, Roland P. Orense, Talib H. Wassan   +3 more
openaire   +1 more source

Influence of gravelly exclusion on compaction of lateritic soils

Geotechnical & Geological Engineering, 2004
This paper uses a deltaic lateritic soil sample to study the combined influence of total gravel composition and gravelly exclusion on compaction parameters MDD (or maximum dry density) and OMC (or optimum moisture content) derived from standard laboratory compaction tests.
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Dilatancy of the interface between a structure and gravelly soil

Géotechnique, 2011
Dilatancy is one of the key properties of the soil–structure interface. A number of monotonic and cyclic shear tests were analysed to derive the rules and the dilatancy mechanism of the interface between a structure and a gravelly soil; diverse influential factors were considered, such as soil type, roughness of the structure and normal stress.
G. ZHANG, L. WANG, J.-M. ZHANG
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Evaluation of penetration tests and their correlations in gravelly soils

2005
All penetration tests are useful for site exploration and soil property characterization, but most have limited applicability in gravelly soils. In these soils, the following dynamic tests dominate: Standard Penetration Test (SPT), Large Penetration Test (LPT), and Becker Penetration Test (BPT).
Kulhawy Fred H., Chen Jie-Ru
openaire   +1 more source

Undrained cyclic resistance of undisturbed gravelly soils

Soil Dynamics and Earthquake Engineering, 2012
Abstract The paper presents the results of laboratory tests carried out on undisturbed specimens of a gravelly soil sampled by in situ freezing. Because of the heterogeneity of the natural deposit, the grain size distribution of the specimens ranged from uniform sand with a very low percentage of gravel to well-graded sandy gravel, and could be ...
FLORA, ALESSANDRO, LIRER, STEFANIA, SILVESTRI, FRANCESCO   +2 more
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Recent Advances in Gravelly Soils Liquefaction Evaluation

Applied Mechanics and Materials, 2011
Many gravelly soils liquefied cases history especially in the 2008 Wenchuan earthquake warn that loose to moderate density of gravels have much potential to liquefy under a given earthquake shaking. The large diameter triaxial apparatus is a relative feasible means to explore the liquefaction mechanism of gravelly soils to some extent.
Long Qing Hou, Ai Fei Li, Hong Mei Xu, Chun Feng He, Peng Hu   +4 more
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Drilled Shaft Side Friction in Gravelly Soils

Journal of Geotechnical and Geoenvironmental Engineering, 2005
To evaluate side friction, 28 axial tension (uplift) load tests were performed on drilled shafts in soil profiles ranging from uniform medium sand through well-graded sandy gravel. Typical load–displacement curves for skin friction in gravelly soils were developed. Measured load capacities were compared with capacities computed using equations proposed
Kyle M. Rollins, Robert J. Clayton, Rodney C. Mikesell, Bradford C. Blaise   +3 more
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SAMPLER FOR GRAVELLY PLASTIC SOILS

Soil Science, 1959
J. L. SMITH, E. R. LAWSON
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Data cleaning and feature selection for gravelly soil liquefaction

Soil Dynamics and Earthquake Engineering, 2021
Jilei Hu
exaly