Results 21 to 30 of about 9,850 (282)

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

Study on compound structure of concrete gravity dam-face rockfill dam

open access: yesShuili Shuiyun Gongcheng Xuebao, 2022
In view of the outstanding problems in super high concrete face rockfill dams, such as large deformation of concrete face plate, easy opening of concrete face joint and non-maintenance of bottom face plate, etc., a new type of dam body structure suitable
LIU Jing, LU Xi, DANG Faning
doaj   +1 more source

Deformation coordination analysis of CC-RCC combined dam structures under dynamic loads

open access: yesWater Science and Engineering, 2020
A combined dam structure using different concrete materials offers many practical benefits. There are several real-world cases where large-volume heterogeneous concrete materials have been used together.
Bo-wen Shi   +4 more
doaj   +1 more source

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

Lifetime evaluation of concrete structures under sustained post-peak loading [PDF]

open access: yes, 2005
Experimental tests on crack propagation in concrete under constant post-peak loading are simulated using the finite element method and the cohesive crack model, in both Mode I and Mixed-mode conditions.
Silvio Valente   +3 more
core   +1 more source

Influence of concrete heel shape on stress and deformation of concrete slab of a dam

open access: yesShuili Shuiyun Gongcheng Xuebao, 2019
The embedded concrete composite dam is a new type of dam which can improve the stress and deformation conditions of a high concrete face rockfill dam. Further analysis of the influence of the concrete structure of the heel of the dam on the stress and ...
LI Yanlong   +3 more
doaj   +1 more source

The cohesive frictional crack model applied to the analysis of the dam-foundation joint [PDF]

open access: yes, 2010
The mechanical behaviour of dam-foundation joints plays a key role in concrete dam engineering since it is the weakest part of the structure and therefore the evolutionary crack process occurring along this joint determines the global load-bearing ...
Barpi, Fabrizio, Valente, Silvio
core   +1 more source

Unit Root Analysis Method of Actual Crack Behavior of the Concrete Dam Based on Residuals of the Monitoring Model

open access: yesAdvances in Civil Engineering, 2020
Analysis on the actual crack behavior is of important significance to evaluate safety of the concrete dam. In this paper, mainly based on the research status on cracks of the concrete dam, the unit root analysis method of actual crack behavior of ...
Bo Xu, Zhanchao Li, Jinlei Zhao
doaj   +1 more source

Application of PFMA in safety monitoring of concrete face rockfill dams

open access: yesShuili Shuiyun Gongcheng Xuebao, 2021
With the development of dam risk management concept, potential failure mode analysis (PFMA) method is becoming more and more widely used. The design of dam safety monitoring based on traditional engineering safety concept lacks pertinence to hidden ...
FENG Longhai   +3 more
doaj   +1 more source

Dam body leakage subaqueous remediation and evaluation of concrete dam

open access: yesShuili Shuiyun Gongcheng Xuebao, 2022
Leakage of concrete dam body affects the safety and durability of the dam. Based on the dam body leakage remediation of Longjiang hydropower station in Yunnan Province, the remediation of the dam is introduced in detail, and the remediation result is ...
LI Zheng   +3 more
doaj   +1 more source

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