Results 21 to 30 of about 2,544 (165)

Tensile reliability analysis for gravity dam foundation surface based on FEM and response surface method

open access: yesWater Science and Engineering, 2010
In this study, the limit state equation for tensile reliability analysis of the foundation surface of a gravity dam was established. The possible crack length was set as the action effect and allowable crack length was set as the resistance in the limit ...
Tong-chun Li, Dan-dan Li, Zhi-qiang Wang
doaj   +1 more source

Embankment overtopping protection systems [PDF]

open access: yes, 2014
For the last decades, the design floods of numerous embankment reservoirs were re-evaluated, and the revised spillway outflows are typically larger than those used in the original designs.
Chanson, Hubert
core   +1 more source

A Case Study On Zoning And Construction Of Roller-Compacted-Concrete Gravity Dams

open access: yesMATEC Web of Conferences, 2018
In order to make full use of the concrete strength, reduce the amount of cementitious materials and simplify the temperature control measures, a roller compacted concrete (RCC) dam needs to be zoned reasonably in consideration of locations and working ...
Qin Genquan, Chen Yangxian
doaj   +1 more source

Time-history analysis of seismic sliding stability for RCC gravity dam of LudiLa Hydropower Station, Jinshajiang River

open access: yesYantu gongcheng xuebao, 2018
The dynamic finite element time-history analysis method is employed to compute the seismic response of Ludila RCC gravity dam at Jinsha River subjected to design earthquake loading (0.36g).
HUANG Cheng 1,2, KONG Ling-wei 1, CHEN Guo-qing 2
doaj   +1 more source

Flow Resistance and Design Guidelines for Embankment Stepped Chutes [PDF]

open access: yes, 2005
Recently the design flows of many dams have been re-evaluated, resulting in spills often larger than the original ones. In many cases, occurrence of revised flows would result in dam overtopping because of insufficient storage and spillway capacity of ...
Chanson, Hubert, Gonzalez, Carlos A.
core   +2 more sources

Gold Creek Dam and its Unusual Waste Waterway (1890-1997): Design, Operation, Maintenance [PDF]

open access: yes, 1998
Completed in 1885, the Gold Creek dam is an earthen dam located on the outskirts of Brisbane, Australia. The spillway system was refurbished three times, each time to increase the maximum overflow capacity.
Chanson, Hubert, Whitmore, Ray L.
core   +1 more source

Model Study of a Roller Compacted Concrete Stepped Spillway [PDF]

open access: yes, 1997
The authors presented the results of one particular laboratory study. The work is helpful in understanding the various aspects of the hydraulics of stepped channels. The discusser wishes to point out that the paper is however incomplete.
Chanson, Hubert
core   +1 more source

Application of SSOR-PCGM with improved iteration format in FEM simulation of massive concrete

open access: yesWater Science and Engineering, 2011
In this study, for the purpose of improving the efficiency and accuracy of numerical simulation of massive concrete, the symmetric successive over relaxation-preconditioned conjugate gradient method (SSOR-PCGM) with an improved iteration format was ...
Lin Han, Zi-ming Zhang, Zhi-giang Ni
doaj   +1 more source

A comparative study of physical and chemical properties of different pozzolanic materials used for roller compacted concrete RCC dams

open access: yesMATEC Web of Conferences, 2017
This paper addresses the feasibility and the efficiency of using Natural Pozzolan and/or Rock flour in Roller Compacted Concrete (RCC) gravity dams. For this purpose, five identical mortar trial mixes were prepared using five different supplementary ...
Husein Malkawi Abdallah I.   +2 more
doaj   +1 more source

Flow Resistance in Skimming Flows and its Modelling [PDF]

open access: yes, 2002
Dams and weirs must be equipped with adequate flood release facilities for a safe dissipation of the kinetic energy of the flow. With stepped spillway design, it is essential to predict accurately the flow resistance associated with the steps.
Chanson, Hubert   +2 more
core   +1 more source

Home - About - Disclaimer - Privacy