Laboratory Study on Structural Performance of Two Reconstituted Soil Samples

doi:10.11988/ckyyb.20170928

Journal of Changjiang River Scientific Research Institute ›› 2019, Vol. 36 ›› Issue (1): 74-77.DOI: 10.11988/ckyyb.20170928

• ROCK-SOIL ENGINEERING • Previous Articles Next Articles

Laboratory Study on Structural Performance of Two Reconstituted Soil Samples

ZHENG Yun^1,2, MA Wei², LI Guo-yu², MU Yan-hu²

1.Key Laboratory of Geotechnical Mechanics and Engineering of Ministry of Water Resources, Yangtze RiverScientific Research Institute,Wuhan 430010, China;
2.State Key Laboratory of Frozen Soil Engineering,Northwest Institute of Eco-environment and Resources,Chinese Academy of Sciences,Lanzhou 730000, China

Received:2017-08-15 Published:2019-01-01 Online:2019-01-01

Abstract

Abstract: Natural clays are generally structural clays, and reconstituted soil samples also have some structural characteristics due to different sample preparation processes. Structural reconstituted soil samples are usually used in laboratory studies, and the sample preparation conditions have great influences on samples’ structural characteristics. Two kinds of reconstituted soil samples (with the same size, soil type, dry density, and moisture content, yet with different saturation methods) were prepared and the structural characteristics were analyzed by uniaxial compression and uniaxial loading-unloading compression tests. It was found that vacuum suction saturation could weaken the structures and uniformities of reconstituted soil samples, and the soil samples without vacuum suction saturation had very good initial uniformity and typical structural characteristics.

Key words: reconstituted soil, structural characteristics, uniformity, vacuum suction saturation, uniaxial compression, loading-unloading

CLC Number:

TU375

ZHENG Yun, MA Wei, LI Guo-yu, MU Yan-hu. Laboratory Study on Structural Performance of Two Reconstituted Soil Samples[J]. Journal of Changjiang River Scientific Research Institute, 2019, 36(1): 74-77.

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Laboratory Study on Structural Performance of Two Reconstituted Soil Samples

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