STUDY OF SOIL-WATER CHARACTERISTIC CURVE OF FIBER MODIFIED EXPENSIVE SOIL

Xie Yan; Tan Xiaohui; Shen Mengfen; Yu Wei; Xu Quan

doi:10.13204/j.gyjz201410019

Volume 44 Issue 10

Jan. 2015

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Xie Yan, Tan Xiaohui, Shen Mengfen, Yu Wei, Xu Quan. STUDY OF SOIL-WATER CHARACTERISTIC CURVE OF FIBER MODIFIED EXPENSIVE SOIL[J]. INDUSTRIAL CONSTRUCTION, 2014, 44(10): 91-95. doi: 10.13204/j.gyjz201410019

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Xie Yan, Tan Xiaohui, Shen Mengfen, Yu Wei, Xu Quan. STUDY OF SOIL-WATER CHARACTERISTIC CURVE OF FIBER MODIFIED EXPENSIVE SOIL[J]. INDUSTRIAL CONSTRUCTION, 2014, 44(10): 91-95. doi: 10.13204/j.gyjz201410019

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STUDY OF SOIL-WATER CHARACTERISTIC CURVE OF FIBER MODIFIED EXPENSIVE SOIL

doi: 10.13204/j.gyjz201410019

Publish Date: 2014-10-30

Abstract

Abstract

In order to study the soil-water characteristics of fiber modified expansive soil，soil water characteristic curve( SWCC) was tested． An expansive soil sampling from an engineering site in Hefei was taken as a research object，and three dry densities and four fiber contents were considered in the experiment． Then，the experimental results were fitted by using the van Genutchen model． The result showed that the effect of dry density on the SWCC of fiber modified expansive soil were obvious． With the increase of dry density，the degree of saturation increase for the same matrix suction． However，the effect of fiber’s content on the SWCC for fiber modified expansive soil was irregular． The curve fitting parameters and their statistics of SWCC for fiber modified expansive soil were obtained by curve fitting． And it was pointed out that the variability of parameter n and ws were smaller． The variability of parameter m was moderate，while the variability of parameter a and wr was more larger．
- soil-water characteristic curve,
- expansive soil,
- fiber,
- osmotic method,
- filter paper method,
- curve fitting

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