Stone-concrete _ material for rockfill dam face zone

21st International Scientific Conference on Advanced in Civil Engineering "Construction - The Formation of Living Environment"

土木建筑工程

Bestuzheva, A.S.^1 ; Gadai, D.V.^1 ; Sadekov, R.M.^1

Department of Hydraulics and Hydraulic Engineering, Moscow State University of Civil Engineering, Yaroslavskoe shosse 26, Moscow

129337, Russia^1

关键词: Concrete materials;    Face zone;    High rockfill dam;    Material-based;    Quarry stones;    Rock Fills;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/365/3/032024/pdf
DOI  :  10.1088/1757-899X/365/3/032024

学科分类：土木及结构工程学

来源: IOP

【 摘 要 】

The main limitation of the construction of high rockfill dams with a reinforced concrete face is the inevitability of high tensile stresses in the face due to deformations of the dumped rockfill. Modern means of «struggle» consist in face reinforcement, in the face cut by deformation seams, in placing of the «sliding seam» on the border of the screen with the sub-screen zone, but all of them are associated with a significant increase in the cost of the dam. The article presents the results of experimental work on the creation of a special material based on a quarry stone, called stone-concrete, which makes it possible to create a harder, in comparison with the stone outline, base for a reinforced concrete face. The technology of creating such material in the construction of dams consists of watering a layer of crush-stone or gravel-pebbly with a height of up to 0.6 m with a cement-sand mix of a specially selected composition in order to create a uniform conglomerate with predetermined properties.