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Displacement-Based Back-Analysis of the Model Parameters of the Nuozhadu High Earth-Rockfill Dam [PDF]

open access: goldThe Scientific World Journal, 2014
The parameters of the constitutive model, the creep model, and the wetting model of materials of the Nuozhadu high earth-rockfill dam were back-analyzed together based on field monitoring displacement data by employing an intelligent back-analysis method.
Yongkang Wu   +4 more
doaj   +4 more sources

An End-to-End Particle Gradation Detection Method for Earth–Rockfill Dams from Images Using an Enhanced YOLOv8-Seg Model [PDF]

open access: goldSensors
Rockfill particle gradation significantly influences mechanical performance in earth–rockfill dam construction, yet on-site screening is often time-consuming, labor-intensive, and structurally invasive.
Yu Tang   +5 more
doaj   +4 more sources

Study on Stability Reduction Characteristics of Earth and Rockfill Dams under Rapid Drawdown Using Fully Coupled Seepage-Stress Analysis [PDF]

open access: goldAdvances in Civil Engineering, 2022
It can be a great expense to examine individually the stability of earth and rockfill dams on rapid drawdown in civil engineering practice. The aim of this present work is to clarify the safe type on the rapid drawdown among the most common types of ...
Yong Nam Ri   +4 more
doaj   +2 more sources

Dynamic Risk Evaluation and Early Warning of Crest Cracking for High Earth-Rockfill Dams through Bayesian Parameter Updating [PDF]

open access: goldApplied Sciences, 2020
Crest cracking is one of the most common damage types for high earth-rockfill dams. Cracking risk of dam crest is closely related to the duration of abnormal deformation state. In this paper, a methodology for dynamic risk evaluation and early warning of
Yongfei Wang   +5 more
doaj   +2 more sources

Comparison between Duncan and Chang’s EB Model and the Generalized Plasticity Model in the Analysis of a High Earth-Rockfill Dam [PDF]

open access: goldJournal of Applied Mathematics, 2013
Nonlinear elastic model and elastoplastic model are two main kinds of constitutive models of soil, which are widely used in the numerical analyses of soil structure. In this study, Duncan and Chang's EB model and the generalized plasticity model proposed
Weixin Dong   +3 more
doaj   +2 more sources

Assessment of the Upstream Slope Stability of Darbandikhan Rockfill Dam during Drawdown [PDF]

open access: yesARO-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
doaj   +3 more sources

Structural Health Monitoring of Dams Based on Acoustic Monitoring, Deep Neural Networks, Fuzzy Logic and a CUSUM Control Algorithm [PDF]

open access: yesSensors, 2022
Internal erosion is the most important failure mechanism of earth and rockfill dams. Since this type of erosion develops internally and silently, methodologies of data acquisition and processing for dam monitoring are crucial to guarantee a safe ...
Luan Carlos de Sena Monteiro Ozelim   +12 more
doaj   +2 more sources

As-Built Inventory and Deformation Analysis of a High Rockfill Dam under Construction with Terrestrial Laser Scanning [PDF]

open access: yesSensors, 2022
The construction of large earth/rock fill dams, albeit its remarkable progress, still relies largely on past experiences. Therefore, a comprehensive yet dependable monitoring program is particularly beneficial for guiding the practice.
Peiwei Xiao   +5 more
doaj   +2 more sources

Numerical Simulation of Hydraulic Fracturing in Earth and Rockfill Dam Using Extended Finite Element Method [PDF]

open access: goldAdvances in Civil Engineering, 2018
Hydraulic fracturing is one of the most important factors affecting the safety of earth and rockfill dam. In this paper, the extended finite element method (XFEM) is used to simulate the hydraulic fracturing behavior in an actual high earth and rockfill ...
Enyue Ji   +4 more
doaj   +2 more sources

Study on the Freeze-Thaw Problems in the Winter Construction of the Lianghekou Earth-Core Rockfill Dam and the Countermeasures for Prevention [PDF]

open access: goldAdvances in Materials Science and Engineering, 2021
Winter construction in seasonally frozen soil areas is inevitable. The variation of ambient temperature causes the freeze-thaw of the filling soils and its impact is significant, and whether the countermeasures can be effectively established and adopted ...
Qihao Yu   +6 more
doaj   +2 more sources

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