Results 1 to 10 of about 1,880 (181)

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

open access: yesThe 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   +6 more sources

Major Technologies for Safe Construction of High Earth-Rockfill Dams

open access: yesEngineering, 2016
The earth-rockfill dam is one of the primary dam types in the selection of high dams to be constructed in Western China, since it is characterized by favorable adaptability of the dam foundation; full utilization of local earth, rock, and building ...
Hongqi Ma, Fudong Chi
doaj   +5 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: yesJournal 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   +4 more sources

The Inversion Analysis and Material Parameter Optimization of a High Earth-Rockfill Dam during Construction Periods

open access: yesApplied Sciences, 2022
Inversion analysis is usually an efficient solution to process the monitoring data of earth-rockfill dams. However, it is still difficult to obtain calculation results that are consistent with monitoring data due to different construction statuses.
Shiyang Pan   +5 more
doaj   +3 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: yesSensors
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   +3 more sources

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

open access: yesApplied 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   +3 more sources

Study on Influence of Numerical Simulation Accuracy on High Core Wall Rockfill Dam Deformation and Crack Analysis

open access: yesBuildings, 2022
With the increasing height of rockfill dams, detailed and effective numerical simulation for the dam design and construction has become increasingly important.
Xiongxiong Zhou, Bo Wu, Li Li
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

Adaptive multihazard modeling predicts rainfall-driven dam failure: a case study [PDF]

open access: yesScientific Reports
The safety of earth-rockfill dams during construction is critically challenged by transient hydrological loads and evolving boundary conditions. While numerical and data-driven models exist, their standalone application is limited; the former is ...
Mohammed Nasser   +4 more
doaj   +2 more sources

Damage evolution mechanism and safety evaluation criterion of ultra-high rockfill dam system under strong earthquakes

open access: yesYantu gongcheng xuebao, 2022
Several ultra-high earth and rockfill dams up to 250 to 300 m in height are to be built in the intensive earthquake regions of West China. The strong outburst and high uncertainty of strong earthquakes pose a great threat to the safety of ultra-high ...
ZOU De-gao 1, 2, LIU Jing-mao 1, 2, KONG Xian-jing 1, 2, CHEN Kai 1, 2, QU Yong-qian 1, 2, NING Fan-wei 1, 2, GONG Jin 1, 2
doaj   +1 more source

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