Simulating and validating the effects of slope frost heaving on canal bed saturated soil using coupled heat-moisture-deformation model

Authors

  • Wang Enliang 1. School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin 150030, China; 2. Heilongjiang Provincial Collaborative Innovation Center of Grain production Capacity Improvement, Northeast Agricultural University, Harbin 150030, China; 3. Key Laboratory of High Efficient Utilization of Agricultural Water Resource of Ministry of Agriculture, Northeast Agricultural University, Harbin 150030, China
  • Fu Qiang 1. School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin 150030, China; 2. Heilongjiang Provincial Collaborative Innovation Center of Grain production Capacity Improvement, Northeast Agricultural University, Harbin 150030, China; 3. Key Laboratory of High Efficient Utilization of Agricultural Water Resource of Ministry of Agriculture, Northeast Agricultural University, Harbin 150030, China
  • Liu Xingchao 1. School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin 150030, China; 2. Heilongjiang Provincial Collaborative Innovation Center of Grain production Capacity Improvement, Northeast Agricultural University, Harbin 150030, China; 3. Key Laboratory of High Efficient Utilization of Agricultural Water Resource of Ministry of Agriculture, Northeast Agricultural University, Harbin 150030, China
  • Li Tianxiao 1. School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin 150030, China; 2. Heilongjiang Provincial Collaborative Innovation Center of Grain production Capacity Improvement, Northeast Agricultural University, Harbin 150030, China; 3. Key Laboratory of High Efficient Utilization of Agricultural Water Resource of Ministry of Agriculture, Northeast Agricultural University, Harbin 150030, China
  • Li Jinling School of Water Conservancy and Civil Engineering, Northeast Agricultural University, Harbin 150030, China

DOI:

https://doi.org/10.25165/ijabe.v10i2.2551

Keywords:

seasonally frozen area, canal, soil of the side slope, coupling of water, heat and deformation, model

Abstract

The lining canals in seasonal frozen soil areas can be severely damaged by frost heaving. The freezing and thawing contributes to the continual change of the temperature field and moisture field beneath lining canal, which will seriously affect the safe operation of the canal. In order to study the frost heaving damage mechanism of lining canal and to solve the associated engineering problems, the permafrost body was regarded as an elastomer, and a three-field, coupled, partial differential equation describing the temperature, moisture and deformation fields for a saturated two-dimensional canal bed was derived and established based on the Harlan model. The coupling equations were discretized using the finite element method in space and the finite difference method in time. The parameters were simplified appropriately based on compliance with the actual conditions and were simulated using finite element software. The results of a sample simulation showed that the simulated results and test results were basically consistent with variation laws, which proved the correctness of the numerical simulation theory and solution methods and the reliability of the calculation. The model can simulate the water, heat and deformation issues in the side slope of saturated canal bed soil in a seasonally frozen area and forecast freezing damage in the canals. Keywords: seasonally frozen area, canal, soil of the side slope, coupling of water, heat and deformation, model DOI: 10.3965/j.ijabe.20171002.2551 Citation: Wang E L, Fu Q, Liu X C, Li T X, Li J L. Simulating and validating the effects of slope frost heaving on canal bed saturated soil using coupled heat-moisture-deformation model. Int J Agric & Biol Eng, 2017; 10(2): 184–193.

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Published

2017-03-31

How to Cite

Enliang, W., Qiang, F., Xingchao, L., Tianxiao, L., & Jinling, L. (2017). Simulating and validating the effects of slope frost heaving on canal bed saturated soil using coupled heat-moisture-deformation model. International Journal of Agricultural and Biological Engineering, 10(2), 184–193. https://doi.org/10.25165/ijabe.v10i2.2551

Issue

Vol. 10 No. 2 (2017): IJABE

Section

Natural Resources and Environmental Systems

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