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Experimental Study on Hydraulic Fracturing of High Asphalt Concrete Core Rock-Fill Dam [PDF]
Applied Sciences, 2019 In this paper, we experiment on the hydraulic fracturing of asphalt concrete with a voids content higher than 3%, which has arisen from the possible local shear dilatancy of Quxue asphalt’s core wall of concrete core dam, the highest one of the ...
Zhengxing Wang +5 more
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Improvement Methods for Reduction of the High Stress of Ultra-High Asphalt Concrete Core Dams [PDF]
Applied Sciences, 2019 With the rapid development of asphalt concrete core rockfill dams (ACCRDs), the construction of ultra-high asphalt concrete core rockfill dams (UACCRDs) has been improved significantly. However, the security problems of asphalt concrete core (ACC) become
Jun Gao +4 more
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Case Studies in Construction Materials, 2022 In recent years, the tendency to use asphalt concrete cores in earth dams is very common and is increasing. In such dams, the interaction between asphalt concrete core and soil materials has an important role in dam stability.
Ashkan Gholipoor Noroozi +2 more
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Shear behavior of the interface between asphalt concrete core and transition under seepage effect [PDF]
Scientific ReportsAsphalt concrete core rockfill dam utilizes an asphalt concrete core as anti-seepage structure. Uneven deformation could produce at core wall-transition interface due to differences in material stiffness, potentially leading to crack formation in the ...
Lifeng Wen, Jialuo Huang, Yu Yang
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A mixture design approach of hydraulic asphalt concrete considering regional deformation characteristics [PDF]
Scientific ReportsThe stress distribution and deformation characteristics of asphalt concrete cores (ACC) under seismic loading exhibit regional variations, rendering uniform HAC mix proportions unsuitable for construction applications.
Hao Li, Jianxin He, Liang Liu
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Overtopping-Induced Breach Mechanisms of the Asphalt Concrete Core Dam
Engineered ScienceThis study conducts flume model tests on the overtopping failure of asphalt concrete core dams (ACCDs), considering varying asphalt contents of core walls, environmental temperatures, dam heights to explore breach mechanisms for the first time.
Meng Yang +6 more
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Seismic Safety of Rockfill Dam with Asphalt Concrete Core on Overburden Layer
Renmin Zhujiang, 2023 As the rockfill dam with an asphalt concrete core is built over the thick overburden layer,the overburden layer affects the dynamic response of the dam and aggravates the whiplash effect.Cutoff structures are also affected,especially the cutoff wall of ...
FENG Rui, LI Yuqi, SHI Wenjie
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Stress-Strain Analysis of Aikou Rockfill Dam With Asphalt-Concrete Core
Journal of Rock Mechanics and Geotechnical Engineering, 2011 AbstractAikou rockfill dam with asphalt-concrete core is situated in a karst area in Chongqing City, China. In order to study the operative conditions of the rockfill dam, especially those of the asphalt-concrete core, the Duncan model is adopted to compute the stress and strain of both the rockfill dam and the asphalt-concrete core after karst ...
Zhenzhen Liu
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Research on Slope Angle of Base for Asphalt-Concrete Core Dam
Renmin Zhujiang, 2023 This study takes Miaotang Reservoir in Wushan of Chongqing as an example and uses the nonlinear finite element method (FEM) to analyze the stress and deformation characteristics of concrete bases during the completion and impoundment periods and tensile ...
FAN Dongyang, WANG Junjie, LI Yuqiao
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Investigation for the Key Technologies of Ultra-High Asphalt Concrete Core Rockfill Dams
Soils and Foundations, 2019 Abstract The mechanical characteristics of ultra-high asphalt concrete core rockfill dams (UACCRDs) at different periods is investigated via Rankine’s earth pressure theory, and a shear safety control standard for UACCRDs is proposed. The reasonable material parameters of the asphalt concrete core (ACC) and transition material that independently and ...
Faning Dang
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