Simulation for Frost Heaving Damage of Concrete Lining Channels by Using XFEM

Li, Jingjun; He, Xinguang; Zhou, Bolin

doi:10.2112/si93-035.1

Cited by 11 publications

(3 citation statements)

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“…The results show that the flexible canal structure can significantly reduce the stress of frost heaving, and the anti-frost heaving effect is high. Li et al [9] established the relationship between temperature, load and crack development by using the extended finite element method based on the stress characteristics of the concrete lining of a trash-like canal. The simulation directly analyzes the failure process of a trapezoidal canal from the shady slope to the bottom and then to the sunny slope under the action of frost heaving, and explains how uneven frost heaving determines the degree of damage in each position.…”

Section: Introductionmentioning

confidence: 99%

Damage Simulation Analysis of Canal Concrete Lining Plates Based on Temperature-Stress-Water Load Coupling

Wu²,

Zhou

2022

Sustainability

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Forming an important component of water conservation infrastructure, canal concrete linings are often subjected to damage to different degrees under the combined action of many factors (temperature, stress, water load, etc.) during construction or later operation. Here we explore the temperature and stress changes in the lining plate under different temperatures and water loads and determine the most unfavorable position (where the stress is more concentrated or the stress value is the largest) of the whole canal lining plate to provide guidance for the subsequent design, construction, and maintenance of canal linings. This paper takes a large irrigation district canal lining project in Henan Province, China as an example and uses ABAQUS finite element software to simulate the temperature and stress fields of the canal concrete lining plate under the combined actions of temperature, stress and water load. The results show that under both conditions of no water or water load, the temperature distribution is more uniform in the middle area of the canal bottom slab, and the temperature of the sunny side slope is higher than that of the shady side slope. The stress values of the lining plate and the bottom plate at the slope foot of the canal are large. Under the action of water load, the maximum stress of the right slope foot of the canal concrete lining plate reaches 2.38 MPa. Furthermore, the validity of the model is verified by comparing the error values, and parameters such as the elastic modulus and Poisson’s ratio were found to have a large influence on the sensitivity of the model. The results can be used as a reference for further research on canal concrete lining construction quality control.

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Section: Introductionmentioning

confidence: 99%

Damage Simulation Analysis of Canal Concrete Lining Plates Based on Temperature-Stress-Water Load Coupling

Wu²,

Zhou

2022

Sustainability

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“…Li and Lai et al [18] study the mechanism of frost heave in a water conveyance canal by numerical simulation, and the results showed that the soil frost damage was caused by freezing of water in the Frost Heave Collapse soil. In addition, numerical analysis is equally effective in predicting the damage mechanism of lining structures, which provides a basis for the design of concrete lining protection [19]. In addition to theoretical studies and numerical simulations, the physical models are also important in the study of the freezing effect of soils [15][16][17].…”

Section: Introductionmentioning

confidence: 99%

Study on the Hydrothermal Coupling Characteristics of Polyurethane Insulation Boards Slope Protection Structure Incorporating Phase Change Effect

Liu

Wang

et al. 2021

Preprint

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As an important hydraulic infrastructure, the canals are essential for agricultural irrigation, shipping and industry. In the seasonal freeze regions, the water conveyance canals are damaged due to the effects of freeze-thaw cycles. The freeze depth of soil in the water transfer canal varies considerably due to changes in temperature and water content. The paper compares the relationship of the freeze depth, temperature and water content by field tests and numerical calculation methods Incorporating phase change. The results show that the decrease in temperature causes the water in the soil to freeze, the ice front migrate downwards, and the water in soil below ice front gradually migrate towards the ice front, resulting a large difference in water content of the soil before and after freezing. An insulation slope structure, Polyurethane insulation board + Concrete board slope structure (PC), is proposed in this paper to mitigate the effect of freezing and thawing on the water conveyance canals. Under the protective effect, the freeze depth decreases significantly. In addition, this paper compares the anti-frost effect of different thicknesses polyurethane insulation boards, and the results can provide a reference for the anti-frost design of water conveyance canals.

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“…Li et al studied the mechanism of freeze in a water conveyance canal by numerical simulation and their results showed that the soil frost damage was caused by freezing of water in soil 18 . In addition, numerical analysis was equally effective in predicting the damage mechanism of lining structures, which provided a basis for the design of concrete lining protection 19 . In addition to theoretical studies and numerical simulations, the physical models are also important in the study of freezing effect of soils 15 – 17 .…”

Section: Introductionmentioning

confidence: 99%

Study on the hydrothermal coupling characteristics of polyurethane insulation boards slope protection structure incorporating phase change effect

Liu

Wang

et al. 2021

Sci Rep

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The canals are essential for agricultural irrigation, shipping and industry as important hydraulic infrastructure. In the seasonal freeze regions, the water conveyance canals are damaged due to the effects of freeze–thaw cycles. The freeze depth of soil in the water transfer canal varies considerably due to changes in temperature and water content. This paper compared the relationship of freeze depth, temperature and water content by field tests and numerical calculation methods by incorporating phase change. The results from present study showed that the decrease in temperature causes the water in the soil to freeze, the ice front migrated downwards, and the water in soil below ice front gradually migrated towards the ice front resulting in a large difference in water content of the soil before and after freezing. The Polyurethane insulation board + Concrete board slope structure (PC) as an insulation slope structure was proposed in this paper to mitigate the effect of freezing and thawing on the water conveyance canals. The freeze depth decreased significantly under the protective effect. In addition, this paper compared the anti-frost effect of different thicknesses of polyurethane insulation boards, and the results provided a reference for the anti-frost design of water conveyance canals.

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Simulation for Frost Heaving Damage of Concrete Lining Channels by Using XFEM

Cited by 11 publications

References 0 publications

Damage Simulation Analysis of Canal Concrete Lining Plates Based on Temperature-Stress-Water Load Coupling

Damage Simulation Analysis of Canal Concrete Lining Plates Based on Temperature-Stress-Water Load Coupling

Study on the Hydrothermal Coupling Characteristics of Polyurethane Insulation Boards Slope Protection Structure Incorporating Phase Change Effect

Study on the hydrothermal coupling characteristics of polyurethane insulation boards slope protection structure incorporating phase change effect

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