Results 91 to 100 of about 1,637 (211)

Energy dissipation down a stepped spillway with nonuniform step heights [PDF]

open access: yes, 2011
Although most stepped spillway-design guidelines were developed for uniform step heights, a nonuniform stepped design might be a practical alternative in some cases.
Chanson, Hubert, Felder, Stefan
core   +1 more source

Simulation of Temperatures and Stresses during Construction of a RCC Dam [PDF]

open access: yes, 2012
Se describen las variaciones de temperaturas y de tensiones durante la construcción de presas de hormigón compactado. The curing of concrete is an exothermic process.
Lacoma Aller, Luis María   +3 more
core  

Designing Roller compacted concrete (RCC) dams

open access: yes, 2018
Concrete is the most common building material in the world and it consists of aggregates,cement and water that harden over time, it is also known as a composite material. The use ofconcrete is very versatile due to its resistance to wind and water and its ability to withstandhigh temperature.
Al Baghdady, Shayma, Khan, Linnea
openaire   +1 more source

Roller compacted concrete (RCC) in dam construction part one -historical development [PDF]

open access: yes, 2003
This paper defines Roller Compacted Concrete (RCC) and its main features as a new building material, as well as a new construction method. Some of the leading RCC-dam builders experience is illustrated through a survey, covering main construction features of 238 dams.
Kuzmanović, Vladan   +2 more
openaire  

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

Experimental Study on Equivalent Strength of Induced Joints with consideration to Influence of Concrete Strength, Inducer Spacing, and Concrete Age

open access: yesAdvances in Civil Engineering, 2020
To prevent the occurrence of temperature cracking, the induced joints of dams are typically arranged to reduce the tensile strength and orderly guide the crack to form at an induced joint, which can protect the dam structure.
Xiaofei Zhang   +5 more
doaj   +1 more source

Investigation of roller compacted concrete: Literature review [PDF]

open access: yes, 2019
Roller compacted concrete is a type of zero slump product produced from the same materials with conventional concrete. There are various methods for the design of RCC namely; corps of engineers’ practice, high paste method, roller compacted dam method ...
Calis, Gokhan, Yıldızel, Sadık Alper
core   +3 more sources

Modelling of the Stresses and Strains Distribution in an RCC Pavement Using the Computer Code "Abaqus"

open access: yesElectronic Journal of Structural Engineering, 2009
The Roller Compacted Concrete (RCC) pavements are built employing the Portland cement. The design of the rigid RCC pavements was developed gradually through methods of design.
M. Zdiri   +3 more
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

Experimental Investigations of Air Entrainment in Transition and Skimming Flows down a Stepped Chute: Application to Embankment Overflow Stepped Spillways [PDF]

open access: yes, 2001
Stepped spillways have been used for about 3,500 years. The last few decades have seen the development of new construction materials, design techniques and applications : e.g., embankment overtopping protection systems.
Chanson, H., Toombes, L.
core  

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