Results 1 to 10 of about 214,307 (207)

Dam concrete quality evaluation and prediction model based on fractal characteristics of elastic-wave computed tomography

open access: yesJournal of Materials Research and Technology, 2023
The evaluation and prediction of dam concrete quality have important theoretical significance for preventing catastrophes in concrete dams and predicting their long-term safety characteristics.
Jinjun Guo   +4 more
doaj   +3 more sources

A factor mining model with optimized random forest for concrete dam deformation monitoring

open access: yesWater Science and Engineering, 2021
The unique structure of a dam complicates safety monitoring. Deformation can provide important information about dam evolution. In contrast to model prediction, actual dam response monitoring data can be used for diagnosis and early warning.
Hao Gu   +3 more
doaj   +3 more sources

Optimization of Invasive Weed for Optimal Dimensions of Concrete Gravity Dams [PDF]

open access: yesJournal of Soft Computing in Civil Engineering, 2022
Dam construction projects among the most extensive and most expensive projects are considered. It is always appropriate and optimal for such concrete structures to reduce the volume of concrete and consequently reduce construction costs is essential.
Vahed Ghiasi   +2 more
doaj   +1 more source

Concrete Swelling in Existing Dams

open access: yes, 2011
Several chemical reactions are able to produce swelling of concrete for decades after its initial curing, a problem that affects a considerable number of concrete dams around the world.
González, Patricia   +3 more
core   +2 more sources

Analysis of the field studies of the foundation deformations and total draft of the Boguchansk HPP concrete dam

open access: yesStructural Mechanics of Engineering Constructions and Buildings, 2022
The results of data analysis from complex field studies of vertical deformations of the rock base near-contact layer and full settling Boguchanskaya HPP concrete dam sections in order to determine the state of contact of the foot of the concrete dam with
Sergey V. Yuriev
doaj   +1 more source

Intelligent Anomaly Identification of Uplift Pressure Monitoring Data and Structural Diagnosis of Concrete Dam

open access: yesApplied Sciences, 2022
As an essential load of the concrete dam, the abnormal change of uplift pressure directly threatens the safety and stability of the concrete dam. Therefore, it is of great significance to accurately and efficiently excavate the hidden information of the ...
Chunhui Ma   +4 more
doaj   +1 more source

Parametric Study of Concrete Dam Stability in the Case of Gallery and Tailwater Existence

open access: yesEurasian Journal of Science and Engineering, 2021
A concrete gravity dam can simply be defined as a large structure constructed of concrete that can hold back and also store a large amount of water.
Thamir Mohammed Ahmed
doaj   +1 more source

Long-term influence of tailings wastewater on mechanical performance and microstructure of dam concrete: A case study in southeastern China

open access: yesCase Studies in Construction Materials, 2021
Tailings wastewater contains a large number of harmful ions which damage the hydraulic concrete structures and seriously affect the safety of water conservancy systems. This paper studied the dam concrete of a medium-sized reservoir in southeastern China
Tao Meng   +4 more
doaj   +1 more source

Influence of Concrete's Mechanical Properties on the Cracking of Concrete Dams [PDF]

open access: yesProceedings of the 31st European Safety and Reliability Conference (ESREL 2021), 2021
Analytical methods of structural stability assessment of concrete dams are often too simple and thus conservative in their predictions.Without the actual foundation geometry, capacity for some rigid body failure modes are underestimated. This is problematic when deciding upon remediation activities of a dam that is considered unstable and may divert ...
Ulfberg, Adrian   +6 more
openaire   +3 more sources

DAM MOVEMENT MODELING BY USING MULTIPLE LINEAR REGRESSION AND ARIMA MODELS [PDF]

open access: yesGeodetski Glasnik, 2020
Structural health monitoring of the large infrastructural objects (high buildings, bridges, tunnels, dams, etc.) is in the domain of civil and geodetic engineers who use different methods and instruments for this task.
Adis Hamzić, Dina Kamber Hamzić
doaj   +1 more source

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