Anti-sliding stability of a gravity dam on complicated foundation with multiple structural planes

Cheng, Yuan; Zhang, Lin; Yang, Geng-xin; Dong, Jianhua; Chen, Jianye

doi:10.1016/j.ijrmms.2012.07.010

Cited by 24 publications

(6 citation statements)

References 13 publications

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“…The comprehensive method can consider more factors simultaneously, but overloading and strength reduction must be conducted in one model, which results in a certain degree of difficulty. Here, we proposed a comprehensive test method for geomechanical models, which takes advantages of special temperature analogous materials [21][22][23].…”

Section: Comprehensive Test Methods For Geomechanical Modelsmentioning

confidence: 99%

Deformation Monitoring of Geomechanical Model Test and Its Application in Overall Stability Analysis of a High Arch Dam

et al. 2015

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Geomechanical model testing is an important method for studying the overall stability of high arch dams. The main task of a geomechanical model test is deformation monitoring. Currently, many types of deformation instruments are used for deformation monitoring of dam models, which provide valuable information on the deformation characteristics of the prototype dams. However, further investigation is required for assessing the overall stability of high arch dams through analyzing deformation monitoring data. First, a relationship for assessing the stability of dams is established based on the comprehensive model test method. Second, a stability evaluation system is presented based on the deformation monitoring data, together with the relationships between the deformation and overloading coefficient. Finally, the comprehensive model test method is applied to study the overall stability of the Jinping-I high arch dam. A three-dimensional destructive test of the geomechanical model dam is conducted under reinforced foundation conditions. The deformation characteristics and failure mechanisms of the dam abutments and foundation were investigated. The test results indicate that the stability safety factors of the dam abutments and foundation range from 5.2 to 6.0. These research results provide an important scientific insight into the design, construction, and operation stages of this project.

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Section: Comprehensive Test Methods For Geomechanical Modelsmentioning

confidence: 99%

Deformation Monitoring of Geomechanical Model Test and Its Application in Overall Stability Analysis of a High Arch Dam

et al. 2015

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“…Establishing finite element model of clay inclined wall earth dam of Daiyinhua Reservoir, the tilt angle of dam upstream face and downstream face respectively is  16 and  20 , dam filling silty loam, dry bulk density of 1400 kg / m 3 , the water content of 23%, the internal friction angle  14 [3-4]. The width of dam is 72.6m, and the finite element model takes 100m toward dam upstream face, 97m toward dam downstream face and 80m to the ground below [5][6]. Earth dam and bedrock FEM division are shown in Fig .1.…”

Section: Finite Element Modelmentioning

confidence: 99%

Finite Element Analysis for Clay Inclined Wall Earth Dam of Baiyinhua Reservoir

Ji¹,

Yang²

2014

Proceedings of the 2014 International Conference on Mechatronics, Electronic, Industrial and Control Engineering

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Baiyinhua Reservoir is located in Oumulun River, Ar khorchin banner in Inner Mongolia. The irrigation area of design is 53600 mu, and it is a medium-sized reservoir which is given priority to with irrigation. This article gives the stress and deformation distribution during construction and operation which has done the three-dimensional simulation analysis for clay inclined wall earth dam of Baiyinhua Reservoir using the finite element method, providing some reference for the design and construction of clay inclined wall earth dam. The results show that clay inclined wall earth dam of Baiyinhua Reservoir satisfy the design requirements and is safe and reliable. The results show that during operations the structural stress all is stress for clay inclined wall earth dam of Baiyinhua Reservoir, and the displacement of dam is very small. This shows that the structural design is safe, reasonable and consistent with the design requirements of earth dam structures.

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“…When establishing structural finite element calculation model for concrete gravity dam, using eight node isoparametric brick element [4][5][6] to simulate concrete gravity dam and rock. Based on mechanical characteristics [7][8] of gravity dam during operation period, mainly consider the following 3 kinds of calculation cases:case 1, normal water level and dead weight; case 2, design water level and tail water level and dead weight; case 3, design water level and tail water level and dead weight and seismic action; case 4, check flood level and tail water level and dead weight.…”

Section: Model For Gravity Dammentioning

confidence: 99%

Simulation Calculation of Concrete Gravity Dam for Xiyu Reservoir During Operation Period

Ji¹,

Song²

2014

Proceedings of the 2014 International Conference on Mechatronics, Electronic, Industrial and Control Engineering

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Concrete gravity dam is a common hydraulic structure，in order to have a clear understanding for concrete gravity dam in the operating process ， researching stress and deformation distribution of concrete gravity dam. This paper adopts the universal finite element calculating software to simulate and calculate concrete gravity dam for Xiyu reservoir during operation period, and gives stress and displacement values on the typical section of gravity dam under the condition during operation period, and analyses calculation results, research results can provides certain theoretical basis for design and construction of concrete gravity dam. The results showed that, in the operating process, stress and deformation values of concrete gravity dam for Xiyu reservoir mainly related to water pressure and earthquake action, but the dam's stress and deformation values are smaller, the stress and deformation values can meet strength and stiffness requirements.

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Anti-sliding stability of a gravity dam on complicated foundation with multiple structural planes

Cited by 24 publications

References 13 publications

Deformation Monitoring of Geomechanical Model Test and Its Application in Overall Stability Analysis of a High Arch Dam

Deformation Monitoring of Geomechanical Model Test and Its Application in Overall Stability Analysis of a High Arch Dam

Finite Element Analysis for Clay Inclined Wall Earth Dam of Baiyinhua Reservoir

Simulation Calculation of Concrete Gravity Dam for Xiyu Reservoir During Operation Period

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