Results 21 to 30 of about 67,478 (268)

Investigation on Hydraulic Fracturing and Flexible Anti-Hydrofracturing Solution for Xiaowan Arch Dam

open access: yesApplied Sciences, 2023
Understanding hydraulic fracturing in concrete super-high arch dams is vital for the implementation of safety measures on the bearing surface. In this study, we conducted tests on hydraulic fracturing for the Xiaowan arch dam (294.5 m) to analyze ...
Yangfeng Wu   +5 more
doaj   +1 more source

Coupled thermal and structural analysis of roller compacted concrete arch dam by three-dimensional finite element method [PDF]

open access: yes, 2010
This paper focuses on the development, verification and application of a three-dimensional nite element code for coupled thermal and structural analysis of roller compacted concrete arch dams. The Ostour Arch dam located on Ghezel-Ozan River, Iran, which
Abdulrazeg, Aeid. A.   +4 more
core   +1 more source

Temperature Field Online Reconstruction for In-Service Concrete Arch Dam Based on Limited Temperature Observation Data Using AdaBoost-ANN Algorithm

open access: yesMathematical Problems in Engineering, 2021
Temperature is one of the factors affecting the safety operation of concrete arch dams. To accurately reconstruct the temperature field of the concrete arch dam online based on the temperature data of several typical dam sections, this paper proposes the
Zhuoyan Chen   +4 more
semanticscholar   +1 more source

Reliability analysis of concrete arch dam under stage construction and hydrostatic pressure by MCS and RS methods [PDF]

open access: yesمهندسی عمران شریف, 2021
The aim of this paper is to conduct reliability analysis of the Pacoima concrete arch dam considering the construction stage. According to the technical literature and codes, the construction stage should be considered in the structural analysis of the ...
M. Pouraminian, H. Ekranejad
doaj   +1 more source

Factors influencing hysteresis characteristics of concrete dam deformation

open access: yesWater Science and Engineering, 2017
Thermal deformation of a concrete dam changes periodically, and its variation lags behind the air temperature variation. The lag, known as the hysteresis time, is generally attributed to the low velocity of heat conduction in concrete, but this ...
Jia-he Zhang, Jian Wang, Li-sha Chai
doaj   +1 more source

Transient response of “Brezina concrete arch dam”–“Reservoir water”–“Rock foundation” system

open access: yesMechanics and Mechanical Engineering, 2021
In this paper, transient responses of the Brezina concrete arch dam, located in the west of Algeria, are determined using the finite elements commercial package, Ansys. A 3D model has been created to study the rock–fluid–structure interaction phenomenon.
Wahiba Moussi   +3 more
semanticscholar   +1 more source

Cracking Risk and Overall Stability Analysis of Xulong High Arch Dam: A Case Study

open access: yesApplied Sciences, 2018
It is of great significance to study the cracking risk, the overall stability, and the reinforcement measures of arch dams for ensuring long-term safety. In this study, the cracking types and factors of arch dams are summarized.
Peng Lin   +3 more
doaj   +1 more source

Effects of Changing Surrounding Conditions on the Thermal Analysis of the Moste Concrete Dam [PDF]

open access: yes, 2015
This paper deals with the heat transfer analysis of the 63 years old and 60 metres high Moste concrete arch-gravity dam, located in NW Slovenia, which was performed after a new sophisticated monitoring system had been established, making it possible to ...
Kryžanowski, Andrej   +2 more
core   +2 more sources

Time-Dependent Deformation of a Concrete Arch Dam in Thailand - Numerical Study on Effect of Alkali Silica Reaction on Deflection of Arch

open access: yesJournal of advanced concrete technology, 2021
A detailed inspection of a dam in Thailand is reported for its time-dependent gradual expansion towards upstream, contrary to the expected downstream creep deflection owing to hydrostatic loads.
N. R. Joshi   +3 more
semanticscholar   +1 more source

XFEM analysis of concrete arch dam to assess deformations and propagation of artificial crack due to the combination of earthquake and uplift pressure

open access: yes, 2021
In this study, the extended finite element method (XFEM) is further generalized to study the crack propagation in the concrete arch dam. Static and dynamic analysis performed on scaled-down prototype plane concrete arch dam to assess the deformation ...
M. N. Hussein   +2 more
semanticscholar   +1 more source

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