Results 31 to 40 of about 549 (185)
New Type of Dam for Longitudinal Reinforced Rockfill Dam and Its Operation Safety Analysis
After a long time operation, a conventional earth rockfill dam (e.g. homogeneous dam or core wall dam) may suffer from a lot of dam diseases such as dam-break, overtopping, landslides and leakage. On the basis of a large number of practices of rebuilding
Jun LIANG
doaj
A concrete plastic-damage model, the extended Drucker–Prager model for rockfill, and acoustic elements for water were introduced and applied to the impact fracture analysis of a concrete-faced rockfill dam–water three-dimensional system.
Lu Lu +4 more
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Abstract Underpinned by the ultrahigh‐core rockfill dam at the Nuozhadu Hydropower Station, comprehensive studies and engineering practices have been conducted to address several critical challenges: coordination of seepage deformation in dam materials, prevention and control of high‐water‐pressure seepage failure, static and dynamic deformation ...
Biao Liu +6 more
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Abstract Degradation within a manmade earth embankment structure is often unobservable from the surface. In order to evaluate the structural integrity of earth embankment levees and dams and identify subsurface zones of weakness that may result in the future failures of such structures, various geophysical methods have been proposed as effective ...
Steven J. Maniscalco, John E. Ebel
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Abstract Ensuring the safety of water networks is a research hotspot in the current water conservancy industry, and dams are an important part. However, over time, the dam is prone to varying degrees of aging and disease, most of which are structural cracks.
Yantao Zhu, Xinqiang Niu, Jinzhang Tian
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Seismic responses of high concrete face rockfill dams: A case study
Seismic responses of the Zipingpu concrete face rockfill dam were analyzed using the finite element method. The dynamic behavior of rockfill materials was modeled with a viscoelastic model and an empirical permanent strain model.
Sheng-shui Chen +3 more
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Seismic safety analysis of high earth-rockfill dams based on seismic deformational fragility
The performance-based seismic fragility analysis can effectively estimate structural damage under earthquake action and become one of the important methods for seismic safety assessment.
JIN Cong-cong 1, CHI Shi-chun , NIE Zhang-bo
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This study proposed a method of modeling and analysis of dam slope plane deformation based on multi‐points monitoring data. Firstly, based on the sort out and analyze of actual monitoring data of the Hongjiadu CFRD, the deformation property of the dam has been mastered.
Xiongxiong Zhou +4 more
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Abstract Off‐stream reservoirs are artificial water storage structures that increase the flood risk of an area. In some places, related risk reduction plans are based on a risk classification of these structures, which follows local water resource management regulations. These classification methods typically follow deterministic qualitative guidelines
Nathalia Silva‐Cancino +1 more
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The uncertainty and correlation of nonlinear strength parameters of rockfill are the key factors affecting the stability reliability analysis results of rockfill dam slopes.
KONG Xian-jing 1, 2, SONG Lai-fu 1, XU Bin 1, 2, ZOU De-gao 1, 2
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