SOIL-WATER CHARACTERISTICS OF UNDISTURBED AND UNSATURATED EXPANSIVE CLAYS IN THE XINQIAO INTERNATIONAL AIRPORT AREA OF HEFEI

Wang Mingwu; Yang Jiangfeng; Li Jian; Qin Shuai

doi:10.13204/j.gyjz201212010

Volume 42 Issue 12

Dec. 2014

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Wang Mingwu, Yang Jiangfeng, Li Jian, Qin Shuai. SOIL-WATER CHARACTERISTICS OF UNDISTURBED AND UNSATURATED EXPANSIVE CLAYS IN THE XINQIAO INTERNATIONAL AIRPORT AREA OF HEFEI[J]. INDUSTRIAL CONSTRUCTION, 2012, 42(12): 41-45. doi: 10.13204/j.gyjz201212010

Citation:

Wang Mingwu, Yang Jiangfeng, Li Jian, Qin Shuai. SOIL-WATER CHARACTERISTICS OF UNDISTURBED AND UNSATURATED EXPANSIVE CLAYS IN THE XINQIAO INTERNATIONAL AIRPORT AREA OF HEFEI[J]. INDUSTRIAL CONSTRUCTION, 2012, 42(12): 41-45. doi: 10.13204/j.gyjz201212010

Citation:

Wang Mingwu, Yang Jiangfeng, Li Jian, Qin Shuai. SOIL-WATER CHARACTERISTICS OF UNDISTURBED AND UNSATURATED EXPANSIVE CLAYS IN THE XINQIAO INTERNATIONAL AIRPORT AREA OF HEFEI[J]. INDUSTRIAL CONSTRUCTION, 2012, 42(12): 41-45. doi: 10.13204/j.gyjz201212010

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SOIL-WATER CHARACTERISTICS OF UNDISTURBED AND UNSATURATED EXPANSIVE CLAYS IN THE XINQIAO INTERNATIONAL AIRPORT AREA OF HEFEI

doi: 10.13204/j.gyjz201212010

1.
School of Civil and Hydraulic Engineering,Hefei University of Technology,Hefei 230009,China

Received Date: 2012-05-05
Publish Date: 2012-12-20

Abstract

Abstract

Soil-water characteristics play roles in engineering behaviors of undisturbed and unsaturated expansive clays.Based on SEM and other experiments,microstructures and shrinkage-swelling properties were discussed for the unsaturated expansive clays in the area of Xinqiao International Airport in Hefei.Moreover,soil-water characteristic curves(SWCCs) during drying and wetting process were measured by means of GDS triaxial stress path system,and numerical simulations and comparisons were conducted for the corresponding SWCC,relative hydraulic conductivity and soil-water diffusivity.The results showed that the measured SWCCs during wetting process behaved hysteresis with reference to that during drying process.The simulation SWCC using Fredlund model was in good agreement with the measured curve.These results provided a certain basis for making a rational foundation treatment plan for the Xinqiao International Airport founded on expansive clays.
- unsaturated soil,
- expansive clay,
- soil-water characteristic curve,
- relative hydraulic conductivity

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References(14)

References

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