Laboratory modelling: Settlement due to groundwater fluctuation in partially saturated soil

Research output: Chapter in Book/Report/Conference proceedingConference contribution

  • 3 Citations

Abstract

Inundation settlement or wetting collapse is triggered by the rise of groundwater table. The complexity of this soil volume change behaviour is that it is taking place under effective stress reduction. In partially saturated soils, the void spaces are filled with both air and water, therefore suction force exists between the soil particles resulting to the increase in shear strength. When the soil is inundated the effect of suction is diminished and the soil shear strength reduced to the shear strength at saturation. The effect of this reduction in strength is anticipated to have the prime influence on this settlement behaviour. The role of shear strength in governing soil settlement is incorporated in Rotational Multiple Yield Surface Framework. The framework is able to model settlements due to loading and wetting. A laboratory scale tests of a model footing were conducted to study the effect of groundwater fluctuation on the soil settlement in tropical residual soil. Three types of test have been conducted: (1) the soil is loaded to failure (2) the soil is loaded and inundated (3) the soil is loaded, inundated and subsequent lowering of water table. The framework is used to predict the soil settlement behaviours. The results show good agreement between the predicted and the modelled settlement. These result shows that the Rotational Multiple Yield Surface Framework is able to model soil settlements in both conditions; loading and wetting for saturated and unsaturated soil conditions.

LanguageEnglish
Title of host publicationUnsaturated Soils - Proceedings of the 5th International Conference on Unsaturated Soils
Pages875-880
Number of pages6
Volume2
Publication statusPublished - Dec 1 2011
Event5th International Conference on Unsaturated Soils - Barcelona, Spain
Duration: Sep 6 2010Sep 8 2010

Other

Other5th International Conference on Unsaturated Soils
CountrySpain
CityBarcelona
Period9/6/109/8/10

Fingerprint

groundwater
modeling
soil
shear strength
wetting
suction
water table
laboratory
soil voids
residual soil
tropical soil
footing
volume change
behavior change
effective stress
strength (mechanics)
void
soil quality
testing
saturation

All Science Journal Classification (ASJC) codes

  • Soil Science

Cite this

Noor, M. J. M., Jais, I. B. M., & Nyuin, J. D. (2011). Laboratory modelling: Settlement due to groundwater fluctuation in partially saturated soil. In Unsaturated Soils - Proceedings of the 5th International Conference on Unsaturated Soils (Vol. 2, pp. 875-880)

Laboratory modelling : Settlement due to groundwater fluctuation in partially saturated soil. / Noor, Mohd Jamaludin Md; Jais, Ismacahyadi Bagus Mohamed; Nyuin, J. D.

Unsaturated Soils - Proceedings of the 5th International Conference on Unsaturated Soils. Vol. 2 2011. p. 875-880.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Noor, MJM, Jais, IBM & Nyuin, JD 2011, Laboratory modelling: Settlement due to groundwater fluctuation in partially saturated soil. in Unsaturated Soils - Proceedings of the 5th International Conference on Unsaturated Soils. vol. 2, pp. 875-880, 5th International Conference on Unsaturated Soils, Barcelona, Spain, 9/6/10.
Noor MJM, Jais IBM, Nyuin JD. Laboratory modelling: Settlement due to groundwater fluctuation in partially saturated soil. In Unsaturated Soils - Proceedings of the 5th International Conference on Unsaturated Soils. Vol. 2. 2011. p. 875-880
Noor, Mohd Jamaludin Md ; Jais, Ismacahyadi Bagus Mohamed ; Nyuin, J. D. / Laboratory modelling : Settlement due to groundwater fluctuation in partially saturated soil. Unsaturated Soils - Proceedings of the 5th International Conference on Unsaturated Soils. Vol. 2 2011. pp. 875-880
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