Results 11 to 20 of about 257 (176)
Yantu gongcheng xuebao, 2022 China is the country with the largest amounts of high earth and rockfill dams in the world. Complex construction conditions and severe operation environment lead to great technical challenges in their construction and long-term safety guarantee. The main
CHEN Sheng-shui 1, 2
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Assessment of the Upstream Slope Stability of Darbandikhan Rockfill Dam during Drawdown
ARO-The Scientific Journal of Koya University, 2021 Earth and rockfill dams face a variety of loading conditions during lifetime. One of the most critical loading conditions is the rapid drawdown of water level after steady state conditions.
Sirwan Gh. Salim, Krikar M. G. Noori
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Shuili Shuiyun Gongcheng Xuebao, 2019 The earth-rockfill dam construction in China has been greatly improved in the past few decades. However, with the extension of the service period of the earth-rockfill dam, its underlying culvert pipe diseases, especially leakage phenomenon, need to be ...
SONG Zilong +3 more
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Unified modeling behavior of rockfill materials along different loading stress paths
Soils and Foundations, 2022 Rockfill materials used for dam construction show obvious stress path dependency during construction process. The constitutive model for rockfill materials are mainly established based on conventional triaxial test.
Shihai Bian +4 more
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Shuili Shuiyun Gongcheng Xuebao, 2019 With a traditional method to calculate the stress and deformation of earth-rock dam, the contact effect between the dam and the bedrock is neglected, which is not consistent with the actual condition.
LI Guoying +3 more
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Application of NARX in Seepage Prediction of Earth-Rockfill Dams
Renmin Zhujiang, 2022 Seepage monitoring is an important means to master the safety state of a dam.As the seepage pressure of earth-rockfill dams lags behind the reservoir water level,a nonlinear auto-regressive neural network with exogenous inputs (NARX),a network characterized by delayed input,is introduced to effectively predict the seepage pressure of the dams.In the ...
ZHAO Pu, GU Yanchang, WU Yunxing
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Stochastic seismic stability analysis of dam slopes considering softening of rockfills
Yantu gongcheng xuebao, 2019 The rockfills of earth-rockfill dams gradually show softening characteristics subjected to earthquakes, especially strong ones, which will affect the safety of dam slopes.
KONG Xian-jing 1, 2, PANG Rui 1, 2, XU Bin 1,2, ZHOU Yang 1, 2, ZOU De-gao 1, 2
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Slope Stability Analysis of Earth-Rockfill Dams Using MGA and UST [PDF]
Journal of Computational Engineering, 2015 The nonlinear Unified Strength Theory (UST), which takes into account the effect of intermediate stress and nonlinear behavior on geotechnical strength, is applied in slope stability analysis of earth-rockfill dams (ERD) in this paper. The biggest drawback for general determination of slip surface is that it must presuppose the shape of slip surface ...
Nansheng Li, Bo Tang, Lihui Xie
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Shuili Shuiyun Gongcheng Xuebao, 2018 The seismic damage assessment of earth-rockfill dams can provide a basis for the post-earthquake emergency disposal and reinforcement, so higher requirements for the reliability of the evaluation methods and evaluation results are put forward.
WU Yunxing +4 more
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Rockfill material segmentation and gradation calculation based on deep learning
Case Studies in Construction Materials, 2022 The gradation of rockfill materials affected the rolling quality and body strength of earth-rockfill dam. To address the limitations of manual screening and traditional computer vision methods, a gradation detection method suitable for rockfill dam ...
Haoyue Fan +6 more
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