Evaluate the Impact of Cold Wave on Face Slab Cracking Using Fuzzy Finite Element Method

Zheng, Dongjian; Cheng, Lin; Xu, Yanxin

doi:10.1155/2013/820267

Cited by 2 publications

(1 citation statement)

References 20 publications

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“…Ahmed [16,17] conducted a stochastic seepage analysis through earth dams and under water-retaining structures by FEM. Zheng et al [18] used fuzzy FEM to analyze the impact of cold wave on face slab cracking of a concrete-faced rockfill dam (CFRD). A simplified procedure based on FEM with the random field theory was developed by Hongwei Huang et al [19], for analyzing the longitudinal performance of shield tunnels considering the longitudinal variation of geotechnical parameters.…”

Section: Introductionmentioning

confidence: 99%

An investigation of integrating the finite element method (FEM) with grey system theory for geotechnical problems

Guang

Zhang

2022

PLoS ONE

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Numerical simulation is very important to solve geotechnical problems. However, it is difficult to obtain required comprehensive and accurate information such as parameters, boundary conditions, and etc. In this paper, a grey distributed parameter model, which integrates the finite element method (FEM) with the grey system theory, was proposed to address the issue. The analysis of grey properties on rock and soil system was performed. The equilibrium equations, geometric equations, physics equations and related differential equations were obtained, each of the equations contains grey parameters and variables. And the discretization and solution methods of the FEM with the grey variables were discussed. An example of deep-buried circular mining tunnel was applied to test the proposed model. The calculation results were compared with those of the exact solution (analytical solution) and the classical FEM, respectively, through which the rationality of the proposed model was demonstrated. For the first time, grey variables and grey parameters are defined in geotechnical numerical simulation. The expressions of basic equations with grey variables are given respectively. A grey distributed parameter model which integrates the FEM with the grey system theory is proposed to solve geotechnical problems, and the optimal solution to the proposed model is determined through calculation and comparison of an application example. The proposed numerical model with grey variables not only has the advantage of grey system theory, but also greatly improves the adaptability and application effect of the model, which contributes to the prediction and evaluation problems in geological engineering, geotechnical engineering, water conservancy engineering and civil engineering with complex structures.

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Section: Introductionmentioning

confidence: 99%

An investigation of integrating the finite element method (FEM) with grey system theory for geotechnical problems

Guang

Zhang

2022

PLoS ONE

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Resampling Methods for Solving Class Imbalance Problem in Traffic Incident Detection

Li¹,

Chen²

2015

AMM

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Traffic data is highly skewed with rare traffic incidents in the real word while most of the existing automatic incident detection (AID) algorithms suffer from limitations due to their inability to detect incidents under imbalanced traffic data condition. This paper developed feasible AID algorithms based on resampling methods to process imbalanced traffic data. In order to obtain the optimal sampling method for incident detection, we compare the detection performance of different AID algorithms based on various resampling methods. The detection performance is evaluated by the common criteria including classification rate, detection rate, false alarm rate, mean time to detection and an integrated performance index. The I-880 dataset is finally used in experiments to verify the proposed algorithms. The experimental results indicate that the proposed AID algorithm based on resampling can achieve better performance through handling imbalanced traffic data problem. Moreover, the under-sampling is competitive than over-sampling for traffic incident detection.

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Evaluate the Impact of Cold Wave on Face Slab Cracking Using Fuzzy Finite Element Method

Cited by 2 publications

References 20 publications

An investigation of integrating the finite element method (FEM) with grey system theory for geotechnical problems

An investigation of integrating the finite element method (FEM) with grey system theory for geotechnical problems

Resampling Methods for Solving Class Imbalance Problem in Traffic Incident Detection

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