نتایج جستجو برای: concrete face rockfill dam

تعداد نتایج: 250370  

2015
A. Blanco

Sand-cement emerged in the early twentieth century as an alternative binder in infrastructures that required a significant amount of concrete volume in order to reduce the costs associated with portland cement. This binder was first used in the United States in several dams before being applied in Camarasa Dam in Spain. Nearly a century after its construction, the dam exhibits degradation pheno...

Journal: :Journal of the Institute of Engineering 2014

Journal: :تحقیقات مهندسی کشاورزی 0
کوروش قادری دانشجوی دکتری گروه سازه های آبی دانشکده کشاورزی دانشگاه تربیت مدرس جمال محمدولی سامانی دانشیار گروه سازه های آبی دانشکده کشاورزی دانشگاه تربیت مدرس

for non-darcy flow in submerged porous media a one- dimensional mathematical model has been developed. rockfill detention dams are one of these porous media that comprised of relatively homogenous coarse rockfill which can be used to reduce flood discharge and hydrograph peak. in this research the focus was on the rockfill detention dams in submerged condition. the existence of overtopping rock...

2007
J. M.V. Samani A. Solimani

Detention rockfill dams are an easy and common tool for flood control. Due to their coarse pores, the flow in void spaces is turbulent and non-Darcy. Different relationships introduced by researchers are used to define the hydraulics of the flow within the rockfill materials. The present research is aimed at gaining a better understanding of the difference among these relationships and the sour...

Journal: :Water 2022

This paper presents the results of an extensive laboratory set tests aimed to study failure downstream shoulder highly permeable rockfill subjected overflow. The experimental research comprised testing 114 physical models by varying following elements: (i) median size uniform gravels (7 45 mm); (ii) configuration dam, i.e., upstream and shoulders crest or just shoulder; (iii) dam height (from 0...

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