Experimental study of consolidation properties of unsaturated soils during draining

Ke, Kai Yuan; Tan, Yih–Chi; Chen, Chu Hui; Chim, Kin Sang; Yeh, Tian Chyi Jim

doi:10.1002/hyp.1467

Cited by 3 publications

(1 citation statement)

References 20 publications

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“…Soils always undergo drying-wetting cycles due to variation of atmosphere weather condition and fluctuation of ground water level. As a consequence, matric suction and texture of the soils vary with environments [1][2][3][4][5], and then shrinkage test of soil is very important for engineering.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Relationship between Saturation Degree and Void Ratio of Remolded Soils on Drying Path

Wang

2011

AMR

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By using of shrinkage curve, the empirical relationship between the degree of saturation and the void ratio on drying path was established for four types of soils including sand, silt, clay and soft clay. It was indicated that during the process of drying, the soil samples continuously shrunk with the decrease of saturation degree. For test samples of sand and silt, the curve of saturation degree and void ratio is flat; For test samples of clay and silt clay, however, the shrinkage of the soil samples was almost fulfilled when the degree of the saturation of soil samples decreased to 90% and the void ratio of the soil samples almost kept unchanged while the degree saturation of soil was reduced to 70%.

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Section: Introductionmentioning

confidence: 99%

Experimental Study on Relationship between Saturation Degree and Void Ratio of Remolded Soils on Drying Path

Wang

2011

AMR

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Use of X-ray CT scan to characterize the evolution of the hydraulic properties of a soil under drainage conditions

et al. 2016

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A Computational Method for Modeling Spatiotemporal Variability of Hydrodynamic Properties in Sandy Soil Under Drainage and Recharge

Périard¹,

Celicourt²,

Gumiere³

et al. 2022

Front. Soil Sci.

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This article proposes an analytical strategy that combines X-ray Computed Tomography (CT) and Continuous Wavelet Transform (CWT) analysis as an alternative solution to long-term experiments that seek to investigate spatiotemporal variations in soil hydraulic properties induced by drainage and recharge cycles. We conducted CT scanning on 100-cm-high column filled with two types of sandy soil in a laboratory environment to simulate, over the period of a month, the equivalent of nearly 40 years of drainage/recharge cycles akin to agricultural fields adopting subirrigation as water management practices. We also monitored soil matric potential, water inflow and outflow, as well as movement of tracers. This later consists in zirconium oxide (ZrO2) that we added to the top 20 cm of each soil column. The results revealed that drainage and recharge cycles greatly affect the evolution of soil hydraulic properties at different locations along the soil profile by reducing drainage and capillary capacities. The approach also allowed us to identify each periodic component of drainage and recharge cycles, and thereby calculate the periodic drift over time. The proposed method can be applied to predict soil evolution according to soil texture, drainage system design and water management, thereby offering a potential basis for proposing mitigation measures related to soil hydrodynamics. It may find its application in agricultural farms adopting subirrigation and surface (e.g., drip) irrigation approaches and, in mining and civil engineering.

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Experimental study of consolidation properties of unsaturated soils during draining

Cited by 3 publications

References 20 publications

Experimental Study on Relationship between Saturation Degree and Void Ratio of Remolded Soils on Drying Path

Experimental Study on Relationship between Saturation Degree and Void Ratio of Remolded Soils on Drying Path

Use of X-ray CT scan to characterize the evolution of the hydraulic properties of a soil under drainage conditions

A Computational Method for Modeling Spatiotemporal Variability of Hydrodynamic Properties in Sandy Soil Under Drainage and Recharge

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