Results 21 to 30 of about 5,830 (261)
工程科学与技术, 2023 Cemented sand-gravel dam (CSG dam) is a new type of dam, and has the advantages of low overall stress level, rapid construction, and saving engineering investment.
Zelin DING +4 more
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Mathematics, 2023 Due to the construction technology of roller compacted concrete (RCC) gravity dams, there are many weak layers that have the potential to affect the seismic performance of dams. However, research on the seismic response and failure characteristics of RCC
Gaohui Wang +4 more
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Design and Modal Analysis of Gravity Dams by Ansys Parametric Design Language
Walailak Journal of Science and Technology, 2014 For find the optimal shape of concrete gravity dams including dam-water-foundation rock interaction, model of 2-dimensional finite elements that include the dam, reservoir and foundation is provided using the finite element software ANSYS in the most ...
Shiva KHOSRAVI, Mohammad Mehdi HEYDARI
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Earth Sciences Research Journal, 2016 The shock response and dynamic fracture of concrete gravity dams under impact load are the key problems to evaluate the antiknock safety of the dam. This study aims at understanding the effects of impact shock on the elastic response and dynamic fracture
Lu Lu +4 more
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Shock and Vibration, 2021 The paper focuses on the failure process and mechanism of the concrete gravity dam considering different nonlinear models under strong earthquakes. By taking a typical monolith of a concrete gravity dam as a case study, a comparative analysis of the ...
Chunli Yan +4 more
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Uncertainty analysis and risk identification of the gravity dam stability using fuzzy set theory [PDF]
Journal of Hydraulic Structures, 2022 This paper introduces a methodology in which the fuzzy theory has been used along with numerical modeling of a gravity dam. For this purpose, using the fuzzy set theory method, the Folsom gravity dam in the USA, which is modeled in ANSYS and CADAM ...
Fakhreddin Moradi Kia +2 more
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International Journal of Concrete Structures and Materials, 2020 This paper proposes an approach to assess and predict the seismic risk of existing concrete gravity dams (CGDs) considering the ageing effect. The combination of fragility function and cumulative absolute velocity (CAV) depending on two failure states ...
Tahmina Tasnim Nahar +2 more
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The damage to model concrete gravity dams subjected to water explosions
Defence Technology, 2023 Over the past century, the safety of dams has gradually attracted attention from all parties. Research on the dynamic response and damage evolution of dams under extreme loads is the basis of dam safety issues.
Shang Ma +5 more
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Factors influencing hysteresis characteristics of concrete dam deformation
Water Science and Engineering, 2017 Thermal deformation of a concrete dam changes periodically, and its variation lags behind the air temperature variation. The lag, known as the hysteresis time, is generally attributed to the low velocity of heat conduction in concrete, but this ...
Jia-he Zhang, Jian Wang, Li-sha Chai
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Near fault and far fault seismic analysis of concrete gravity dam [PDF]
Journal of Hydraulic Structures, 2020 Ground motions records of the past higher magnitude (Mw>5) earthquakes have indicated that ground motions recorded at the closest distance of the near-fault are very different from those recorded from a higher distance from the site of the far-fault ...
Prince Pundrik +2 more
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