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Vibratory compaction of coarse-grained soils
Canadian Geotechnical Journal, 2002The variation of the coefficient of earth pressure in normally consolidated and overconsolidated soil and the effect of soil compaction on the change of the horizontal effective stress are discussed based on cone penetration test (CPT) data. A method is outlined for estimating the increase in the effective earth pressure based on sleeve friction ...
K Rainer Massarsch, Bengt H Fellenius
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Stiffness of coarse-grained soils at small strains
Géotechnique, 1997The accurate predictions of deformations around geotechnical structures depend on the correct definition of the stiffness–strain curve of the soil, and in particular on the elastic stiffness at very small strains, which, being the starting point of the curve, may be regarded as a benchmark parameter for a given soil.
V. JoviČIĆ, M. R. Coop
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Influence of Gradation of Coarse-Grained Soil on the Permeability Coefficient
Soil Mechanics and Foundation Engineering, 2021A constant head permeability test of the coarse-grained soil of an earth-rockfill dam was carried out and the gradation of the tested soil was determined based on the continuous gradation equation. Based on the test results, an empirical formula of permeability coefficient considering the influence of gradation was established.
Meng-Die Bao +3 more
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Inadequacy in the Classification of Coarse-Grained Soils
Geotechnical Testing Journal, 1990Abstract This note explores the rationale behind the unified soil classification system for coarse-grained soils. A few deficiencies in the system are pointed out. A density function plot of the grain-size distribution is proposed to supplement the grain-size distribution curve, which the author believes will minimize the ambiguities and
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Investigations on the Effects of Microorganisms on Coarse Grained Soil
2017The association of soil and microorganisms is known to be existent since the formation of earth. However, conventional geotechnical engineering practices has only considered mechanical loading on the soil without taking into account of the biological aspects that might be associated.
S. Sowmya +3 more
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Mechanical properties of frozen coarse-grained soils
Engineering Geology, 1981Coarse-grained soils are extensively used in hydraulic engineering, highway and underground construction practice. Many problems in predicting the behaviour of underground structures constructed by artificial freezing, and of soil structures built on frozen soils, require that the thermal, mechanical and cryogenic processes, observed both in the ...
N.A. Tsytovich +3 more
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Applications of a gradation equation in coarse-grained soils
Proceedings of the Institution of Civil Engineers - Geotechnical Engineering, 2019The gradation equation is used to mathematically express the particle size distribution (PSD) of soils. In this paper, a simple and practicable gradation equation and its applications to coarse-grained soils are discussed. First, the proposed equation can be used as an analytical technique for computing particle breakage factors.
Wan-Li Guo +3 more
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Some studies on morphology of the coarse-grained soils
Engineering Geology, 2013Abstract Soil is a particulate material and its engineering properties are mainly controlled by the particle size and shape (i.e., morphological characteristics). In this context, earlier researchers have demonstrated dependence of soil specific parameters like permeability, shear strength, electrical conductivity, thermal conductivity and dielectric
UDAY, KV, PADMAKUMAR, GP, SINGH, DN
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The Freezing Characteristic Curve of a Coarse-Grained Volcanic Soil
2021Volcanic soils are widely distributed in the Hokkaido prefecture of Japan, where seasonal freezing and thawing occur. In frozen soils, a portion of pore water remains unfrozen, due to the effects of capillarity, adsorption, and possibly solute. The variation of the amount of unfrozen water in a frozen soil, which is primarily influenced by subzero ...
Junping Ren +3 more
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Size Distribution of Coarse-Grained Soil by Sedimaging
Journal of Geotechnical and Geoenvironmental Engineering, 2014AbstractAn image-based method has been developed for determination of particle-size distributions of coarse-grained soils in the 0.075–2.0 mm range. The percentage of fines is also determined. The test is referred to as sedimaging because it analyzes an image of a soil that has been rapidly sedimented through water to sort the particles by size.
Hyon-Sohk Ohm, Roman D. Hryciw
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