Variation of Initial Soil Suction with Compaction Conditions for Clayey Soils

Yang, Shu-Rong; Lin, Huapeng; Huang, Wei

doi:10.1017/jmech.2012.52

Cited by 12 publications

(3 citation statements)

References 18 publications

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“…1 SWCC for the studied soil [19] Initial matric suction of soil samples prepared with 20% and 25% water content and degrees of compaction of 80%, 83%, and 86% were around 20kPa and 15kPa, respectively. This is consistent with the findings of Yang et al [24], who found that compaction energy has a lower impact on soil suction in soils having a lower clay content. The soil-water characteristic curve (SWCC) represents the relationship between matric suction and water content.…”

Section: Sample Preparationsupporting

confidence: 93%

Experimental Study on State Boundary Surface of Compacted Silty Soil

Ahmad¹

2023

GEOMATE

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To understand the behavior of unsaturated soil, considerable research has already been done. However, there is limited research to model the behavior of unsaturated soil in a generalized state boundary surface (SBS). SBS is the surface outside which a soil stress state can never exist. It is an envelope surface of all the possible soil stress paths in the p'-q-e space. To investigate the SBS of unsaturated soils, a series of triaxial compression tests were performed in this study under constant water content conditions using a doublecell triaxial test apparatus. The samples were prepared with 80%, 83%, and 86% degrees of compaction and water contents of 20% (Optimum water content) and 25%. All the soil specimens were consolidated isotropically under 500kPa confining pressure before being sheared with a constant void ratio under monotonic loading. The results show that constant void ratio tests depict contour-like lines, which can help in defining the SBS of unsaturated soil.

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Section: Sample Preparationsupporting

confidence: 93%

Experimental Study on State Boundary Surface of Compacted Silty Soil

Ahmad¹

2023

GEOMATE

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“…Yang et al [5] concluded that the resilient modulus of compacted subgrade soils is dependent on soil suction. The influence of compaction effort on soil suction has also been widely discussed [6][7][8]. Chu and Mou [6] found that matric suction of compacted soils with the same water content increases as compaction effort increases.…”

Section: Introductionmentioning

confidence: 99%

“…They indicated that the total suction and matric suction are higher for clayey soils compacted with low energy than with high compaction energy. Yang et al [8] proposed reasonable models to explain these two kinds of suction behaviors of compacted soils.…”

Section: Introductionmentioning

confidence: 99%

Temperature Effects on Soil Suction for Compacted Clay Soils

Yang

Huang

Chung

2013

AMR

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An investigation was conducted to determine the effects of temperature, compaction water content, and compaction efforts on soil suction of two expansive subgrade soils. For this purpose, two expansive soils were statically compacted at target water contents ranging from 5% to 20%. This made it possible to explore a broad spectrum of compaction conditions. Filter paper method and thermocouple psychrometer were used to measure soil suction at temperatures ranging from 10°C to 60°C. Experimental results show that compaction water content, compaction effort, and temperature have influences on soil suction. As water content increases, the influences of compaction effort and temperature on suction become less significant. Finally multiple regression formulations for predicting the soil suction of as-compacted clayey soil were established.

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