Performance evaluation of asphalt concrete core earth-rock fill dam relative to clay core earth-rock fill dam in the case of Megech Dam, Ethiopia

2021 ◽  
Vol 14 (24) ◽  
Author(s):  
Neway Asrat Alemie ◽  
Mekete Dessie Wosenie ◽  
Amanuel Zewdu Belew ◽  
Eshetu Adane Kibret ◽  
Workineh Tadesse Ayele
Keyword(s):  
Performance Evaluation ◽  
Asphalt Concrete ◽  
Concrete Core ◽  
Rock Fill ◽  
Clay Core

Stress and Deformation Characteristics of Rock-Fill Dam with Asphalt Concrete Core Wall Founded on Deep Overburden

2013 ◽  
Vol 405-408 ◽  
pp. 428-433
Author(s):  
Fu Yong Chu ◽  
Jun Gao Zhu
Keyword(s):  
Yield Surface ◽  
Asphalt Concrete ◽  
Water Storage ◽  
Horizontal Displacement ◽  
Vertical Displacement ◽  
Surface Model ◽  
Concrete Core ◽  
Rock Fill ◽  
Stress And Deformation ◽  
Double Yield

Abstract: The stress and deformation of rock-fill dam with asphalt concrete core wall founded on deep overburden is calculated and analyzed by Duncan E-ν model and double-yield-surface model through three-dimensional finite element method. The stress and deformation of dams in water storage period is compared by the two models, the results show that the deformation distribution of dam core via two different models are coincide one another. The horizontal displacement and vertical displacement of rock-fill dam with asphalt concrete core wall by double-yield-surface model is smaller than which by Duncan E-ν model in the period of water storage. Furthermore, the horizontal displacement and vertical displacement by double-yield-surface model, which are close to the practical test data through the deformation via two models are in good agreement. The analysis of core-wall stress via double-yield-surface model is more reasonable than the Duncan E-ν model. The analysis result of resisting hydraulic fracturing of core dams by DuncanE-ν model is coincide which of core dams by double-yield-surface model.

Creep Behavior of Asphalt Concrete Core Materials in Embankment Dams under a Stepped Loading Path

2021 ◽  
Vol 33 (9) ◽  
pp. 04021233
Author(s):  
Xinfu Xing ◽  
Xibao Rao ◽  
Yuqiang Zou ◽  
Haomin Li ◽  
Liangliang Zhang
Keyword(s):  
Creep Behavior ◽  
Asphalt Concrete ◽  
Loading Path ◽  
Concrete Core ◽  
Embankment Dams ◽  
Core Materials
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