Results 201 to 210 of about 1,764 (244)

Estimation of the reliability of a high earth-rock dam

Hydrotechnical Construction, 1986
1. The magnitudes of the statistical variability of physical and mechanical characteristics of soils and loads have a decisive effect on the probability scatter of stresses, strain and safety factors as well as on the level of reliability of a dam. 2.
L. N. Rasskazov, V. G. Zhelankin
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Intelligent rolling compaction system for earth-rock dams

Automation in Construction, 2020
Abstract The compaction quality of earth-rock dams primarily depends on manual control of the compaction parameters during construction and random spot tests after construction. However, manual control of the compaction parameters can result in more control errors and quality defects and cannot satisfy the requirements of construction operations ...
Qinglong Zhang, Zaizhan An, Tianyun Liu, Zhaosheng Zhang, Zehua Huangfu, Qingbin Li, Qingjie Yang, Jinqing Liu   +7 more
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Study on Estimating Failure Probability of Earth-Rock Dams

Advanced Materials Research, 2012
Dam safety based on risk analysis methodologies demands risk quantification of the earth-rock dam project, and estimation on the failure probability of earth-rock dams is a major concern in the dam safety management. Due to numerous uncertainties, structures of the reservoir are involved leading to risks that may finally cause dam failure.
Rui Rui Sun, Xiao Ling Wang, Xue Fei Ao, Wei Ping Guo   +3 more
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Comparative study on slope stability analysis methods of earth-rock DAMS

Proceedings of the 8th International Conference on Informatics, Environment, Energy and Applications, 2019
Combined with a soil-rock dam project, simplified bishop method, Swedish bar method and finite element strength reduction method are respectively adopted to analyze the influence of different working conditions and material selection. The limit equilibrium method USES nonlinear strength index to calculate the sliding arc.
Ting Jiang, Xiao-Long Wang
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Dynamic Analysis for Earth Rock-Fill Dam Including Dam-Reservoir-Foundation Interaction

Earth and Space 2010, 2010
In the traditional studies on earth-rockfill dam seismic response, earth-rockfill dam material is usually analyzed as single-phase medium, besides that, current investigation related to the dynamic study of earth-rockfill dam-reservoir-foundation problems are still limited. In this paper, the seismic response of earth-rockfill dam was analyzed by using
Niu Zhiwei, Tongchun Li, Wei Li
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Simulation of seepage field of earth-rock dam in heavy rains

2011 International Conference on Consumer Electronics, Communications and Networks (CECNet), 2011
A drastic change will happen on seepage field of earth-rock dam in heavy rains, which may cause seepage damage and instability. So it has important significance to correctly analyze the change rule of seepage field of earth-rock dam in heavy rains, and rationally evaluate the safety of earth-rock dam during rainstorm period.
Xiao-fei Zhang, Sha-sha Ni, Zhan-kun Chen   +2 more
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Seepage in inclined antiseepage elements of earth-rock dams

Hydrotechnical Construction, 1992
The presently existing methods or calculating seepage in inclined ASEs have a limited area of use and often give substantial deviations from the actual values. At the same time, no analytical relations are known for calculating Iex in the backwater zone of the LP.
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Seismic Analysis of an Earth-Rock Dam on Thick Alluvial Deposit

Advanced Materials Research, 2012
The nonlinear dynamic FEM was applied to analyze the dynamic response of a core-wall earth-rock dam on thick loess alluvial deposit. The dynamic responses of acceleration, dynamic displacement, permanent deformation and the liquefaction state of the dam were obtained.
Wei Jun Cen, Shuai Wang, Zhi Xiang Yang, Hui Sun   +3 more
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Study on Seismic Permanent Deformation of Earth Rock Fill Dam

Applied Mechanics and Materials, 2011
For the flaw of safety evaluation system using safety factor as control index, seismic permanent deformation is used to evaluate the safety of earth rock fill dam. In this study, the seismic deformation of Zipingpu dam after Wenchuan earthquake is measured and analysis. The deformation in the middle of the riverbed on the crest is the largest.
Guo Bin Zhou, Jian Ming Zhao, Yan Feng Wen, Zheng Quan Yang   +3 more
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Hierarchic Genetic Algorithm for the Initial Omission Settlement of the Earth-Rock Dam

2007 International Conference on Machine Learning and Cybernetics, 2007
The exterior and interior displacements of the earth-rock dam are the important characters which can reflect its operation state. And it also has pivotal function in evaluating the quality of the project and judging whether the crack of the dam appears. The initial omission settlement is a popular problem in the observation of the earth-rock distortion.
Song-Hui Li, Ji-Jian Lian, Zhi-Hong Qie, Chun-Di Si   +3 more
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