Static Performance of Face Rockfill Dam on the Principle of Finite Element

2013 ◽  
Vol 438-439 ◽  
pp. 1351-1354
Author(s):  
Yu Zhao ◽  
Ya Li Wang
Keyword(s):  
Finite Element ◽  
Good Choice ◽  
Rockfill Dam ◽  
Geological Conditions ◽  
Static Performance ◽  
Completion Date ◽  
Normal Water ◽  
Stress And Deformation ◽  
Concrete Face ◽  
Concrete Face Rockfill Dam

The concrete face rockfill dam has a strong ability to adapt to the terrain and geological conditions, which is a good choice of dam type for easy construction, short constructed period, safe and good shock resistance. Therefore, the study of stress and deformation in the completion date, normal water level and rapid drawdown is of very important in significance. In this paper, a face rockfill dam is studied by the finite element method.

The Application of ABAQUS in Finite Element Analysis of CFRD

2012 ◽  
Vol 466-467 ◽  
pp. 165-169
Author(s):  
Xiang Li Huo ◽  
Bo Wang ◽  
Zong Kun Li
Keyword(s):  
Finite Element Analysis ◽  
Sensitivity Analysis ◽  
Finite Element ◽  
Dam Construction ◽  
Element Analysis ◽  
Univariate Sensitivity Analysis ◽  
Rockfill Dam ◽  
Reservoir Impoundment ◽  
Concrete Face ◽  
Concrete Face Rockfill Dam

The deformations and stresses of a concrete face rockfill dam (CFRD) for dam construction and reservoir impoundment were simulated by the element add/remove technique of ABAQUS. And, the sensitivity analysis of main parameters of the Duncan-Chang E-B model was carried out by the method of univariate sensitivity analysis and the critical sensitivity parameters of the deformation and stress on the CFRD were obtained. This research has some guidance and reference for future similar projects design and monitoring.

3D Finite Element Analysis of Concrete Face Rockfill Dam

2012 ◽  
Vol 238 ◽  
pp. 264-267 ◽  
Author(s):  
Jian Wei Zhang ◽  
Sheng Zhao Cheng ◽  
Shu Fang Yuan ◽  
Yu Zhao
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Nonlinear Finite Element ◽  
Elastic Model ◽  
Analysis Software ◽  
Element Analysis ◽  
Rockfill Dam ◽  
Nonlinear Elastic ◽  
Concrete Face ◽  
Concrete Face Rockfill Dam

Concrete face rockfill dam has the certain superiority in the construction of dam. Duncan-Chang nonlinear elastic model is selected as the dam materials in ABAQUS, which is an nonlinear finite element analysis software. Stresses and deformations of the concrete face rockfill dam are analyzed during its completion, operation and water level drawdown periods. Study shows that all results meet the requirements of the project, and have referenced value for other similar engineering.

Stress and Deformation Analysis of Concrete Face Rockfill Dam Based on ABAQUS

2014 ◽  
Vol 998-999 ◽  
pp. 538-544
Author(s):  
Chun Hui Fang ◽  
Xue Wang
Keyword(s):  
Material Model ◽  
Secondary Development ◽  
Deformation Analysis ◽  
Analysis Method ◽  
Rockfill Dam ◽  
Calculation Results ◽  
Practical Engineering ◽  
Stress And Deformation ◽  
Concrete Face ◽  
Concrete Face Rockfill Dam

A new analysis method of stress and deformation of concrete face rockfill dam is established based on ABAQUS. This new approach includes secondary development of Duncan E-B material model and secondary development of Goodman frictional model of contact between concrete face and cushion. Meanwhile, contact characteristics is considered among concrete face and between concrete face and plinth. According to dam prototype observation, the analytic results are in good agreement with calculation results from the practical engineering, which indicates that the analysis method can be used widely.

scholarly journals An XFEM-Based Analysis of Concrete Face Cracking in Rockfill Dams

2021 ◽  
Vol 2021 ◽  
pp. 1-12
Author(s):  
Binpeng Zhou ◽  
Junrui Chai ◽  
Jing Wang ◽  
Heng Zhou ◽  
Lifeng Wen
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Numerical Model ◽  
Crack Initiation ◽  
Rockfill Dam ◽  
Initiation And Propagation ◽  
The Face ◽  
Stress And Deformation ◽  
Concrete Face ◽  
Element Method

The concrete face of a rockfill dam is a long and thin slab structure, which is highly susceptible to fracture when subjected to the settlement of the dam. The study of the generation and propagation of cracks in the concrete face of rockfill dams is of great significance to dam construction and face crack prevention. In this study, the initiation and propagation of cracks in the concrete face of a rockfill dam are investigated using an extended finite element method (XFEM) and ABAQUS software for the Gongboxia concrete-face rockfill dam. A numerical model for this dam is established using a finite element method, and the face stress and deformation distributions are obtained. Based on the results, a numerical model is built to find the location where cracks are initiated in the face. The displacement of the entire model is treated as the equivalent displacement for the numerical model. XFEM is utilized throughout the modeling process to obtain the stress concentration, crack initiation, and crack propagation in the concrete face, and an analysis of crack initiation and propagation is conducted. Finally, the effects of the thickness of concrete covers and reinforcement layers on the stress intensity of crack tips are also discussed using the established numerical model, and techniques for controlling the fracturing of the concrete face have been proposed in this paper.

Simulative Analysis for Reinforced Concrete Face Rockfill Dam of Qianqiao Reservoir

2011 ◽  
Vol 295-297 ◽  
pp. 2413-2416
Author(s):  
Dong Yu Ji ◽  
Wen Liang Ma
Keyword(s):  
Finite Element ◽  
Reinforced Concrete ◽  
Construction Process ◽  
Operational Process ◽  
Rockfill Dam ◽  
Concrete Face ◽  
Concrete Face Rockfill Dam

In this paper, finite element simulative analysis is proceeded for reinforced concrete face rockfill dam of Qianqiao reservoir. Deducing variation law of the dam’s stress and displacement in construction process and operational process. The analytic results are shown：reinforced concrete face rockfill dam of Qianqiao reservoir is reasonable structure, and every index meets the requirements for design.

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