Results 21 to 30 of about 1,880 (181)
Effects of toe configuration on throughflow properties of rockfill dams [PDF]
, 2021 Rockfill dams must be equipped with defence mechanisms to counteract the destabilizing effects of throughflow forces under accidental leakage scenarios. A key component of the rockfill dam overtopping system is the rockfill dam toe, constructed in tandem
Rokstad, Marius Møller +3 more
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Stress characteristics of foundation gallery of high core wall rockfill dam
Yantu gongcheng xuebao, 2017 There are deep overburdens, tens to hundreds of meters thick, on riverbeds in western China where many rockfill dams are under construction or will be built.
FENG Rui , HE Yun-long , BAI Xin-ge
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Mathematical Problems in Engineering, 2019 This study analyzes the impact of the number of ground motions on the seismic fragility of a high earth‐rockfill dam and the estimation of reasonable fragility parameters based on a sufficient number of earthquake records. In this paper, the vertical deformation is obtained using the three‐dimensional finite element program DYNE3WAC combined with the ...
Congcong Jin, Shichun Chi
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Reliability Analysis for Bypass Seepage Stability of Complex Reinforced Earth‐Rockfill Dam with High‐Order Practical Stochastic Response Surface Method [PDF]
Mathematical Problems in Engineering, 2019 Practical stochastic response surface method (SRSM) using ordinary high‐order polynomials with mixed terms to approximate the true limit state function (LSF) is proposed to analyze the reliability of bypass seepage stability of earth‐rockfill dam. Firstly, the orders of random variable are determined with a univariate fitting.
Jinwen He, Ping Zhang, Xiaona Li
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Numerical modelling of glacial lake outburst floods using physically based dam-breach models [PDF]
, 2015 The instability of moraine-dammed proglacial lakes creates the potential for catastrophic glacial lake outburst floods (GLOFs) in high-mountain regions.
Brasington, James +20 more
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Seismic reliability analysis of high earth-rockfill dams based on deformation control criteria
Yantu gongcheng xuebao, 2019 The reliability-based design (RBD) is one of the most crucial measures to study and guarantee geotechnical engineering safety. Through quantitative analysis of uncertainty in earth-rockfill dam engineering, the failure probability can be evaluated and ...
LÜ Xiao-long 1, 2, CHI Shi-chun 1,2
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Complexity, 2020 For modern high earth dams, sufficient safety margin is considered in the designs of flood discharge capacity and dam crest elevation to prevent flood overtopping. However, for high earth dams which may induce catastrophic consequences, during their long
Lijun Liu, Zhenyu Wu
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Assessment of crack resistance of ultra-high earth core rockfill dam by pore pressure
Magazine of Civil Engineering, 2022 An important problem at construction of high earth core rockfill dams (ECRD) is danger of hydraulic fracturing of their seepage control element. It is usually considered that the cause of hydraulic fracturing is presence of micro cracks in the core ...
Sainov Mikhail
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Numerical analysis of earthquake response of an ultra-high earth-rockfill dam
, 2013 Abstract. Failure of high earth dams under earthquake may cause disastrous economic damage and loss of lives. It is necessary to conduct seismic safety assessment, and numerical analysis is an effective way. Solid-fluid interaction has a significant influence on the dynamic responses of geotechnical materials, which should be considered in the seismic ...
Dong, W. X. +3 more
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Discussion on some problems observed in high earth-rockfill dams
Yantu gongcheng xuebao, 2018 A few key issues influencing the safety of high earth-rockfill dams are discussed, and the research progress in recent years is reviewed. The factors which influence the scale effects of coarse-grained materials are analyzed.
WANG Xiao-gang
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