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...

To address the uncertainty problem in assessment of overall safety trend dams and selection warning indicators, an Extended Cloud Model (ECM) combined with Analytic Hierarchy Process (EAHP) method is proposed this study. In new approach, different factors reflecting dam monitoring have been considered as a fuzzy system. Considering characteristics forward cloud model backward model, original da...

Abstract The concrete face rockfill dam (CFRD) generally encounters structural health problems during long-term operation. Therefore, it is necessary to study the safety evaluation of CFRDs. This paper proposes a comprehensive method for behavior CFRDs on basis regression relationship and fuzzy recognition model. sub-index established by using method. multiplication scale was adopted determine ...

this study simulates the temperature field and temperature stress of concrete face slabs, considering the cold waves that occur during construction as well as the contact friction between the face slabs and the cushion layer. the results show that when a cold wave occurs during construction, the surface and center temperature of the face slabs continually drop with the outside air temperature, ...