Results 11 to 20 of about 409 (179)
A simple permanent deformation model of rockfill materials
Water Science and Engineering, 2018 Existing experimental results have shown that using a semi-log linear relationship between the permanent volumetric strain and cyclic number underestimates the volumetric deformation of rockfill materials with a large cyclic number, and that the error ...
De-gao Zou +4 more
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Discrete element simulation of crushable rockfill materials
Water Science and Engineering, 2013 A discrete element method was used to study the evolution of particle crushing in a rockfill sample subjected to triaxial shear. A simple procedure was developed to generate clusters with arbitrary shapes, which resembled real rockfill particles.
Lei Shao +3 more
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Testing and modeling of rockfill materials: A review
Journal of Rock Mechanics and Geotechnical Engineering, 2016 AbstractThe research development of rockfill materials (RFM) was investigated by a series of large-scale triaxial tests. It is observed that confining pressure and particle breakage play important roles in the mechanical property, dilatancy relation and constitutive model of RFM.
Xiao, Yang +5 more
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Experimental study on grouting technology of rockfill and mechanical properties after grouting
Yantu gongcheng xuebao, 2019 The self-compacting mortar is used to carry out on-site grouting tests on sandstone rockfill materials to verify the controllability of the diffusion range of rockfill grouting and the feasibility of grouting technology.
DENG Cheng-jin 1, 2, DANG Fa-ning 1, MIAO Zhe 2, CHEN Xin-zhou 3
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Rock and Soil Mechanics, 2020 In high rockfill dam, particle breakage is one of the main factors that lead to dam deformation. However, because of the large size of the rockfill particles, the breakage degree of the prototype rockfill materials is difficult to be measured directly ...
WANG Feng, ZHANG Jian-qing
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Gradation design method for rockfill materials based on fractal theory
Yantu gongcheng xuebao, 2017 According to the fractal theory, the fractal distribution formula of gradation for rockfill materials is deduced. The field gradation data of six dams with clay core and five 200 m-high CFRDs are used to verify the relevant achievements. The result shows
ZHU Sheng 1,2, DENG Shi-de 1,2, NING Zhi-yuan 1,2, WANG Jing 1,2
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Particle breakage characteristics of rockfill materials and correction of Wan-Guo hardening rule
Yantu gongcheng xuebao, 2020 The particle breakage problem of super-high rockfill dams is a hot issue in the current researches. For the rockfill materials of the world's highest concrete faced rockfill dam, Shuibuya Dam, the consolidated drained tri-axial tests with the maximum ...
SUN Da-wei 1, 2, ZHANG Liang 1, 2, XU Zhi-hua 1, 2, ZHANG Guo-dong 1, 2
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State-dependent 3D multi-mechanism bounding surface model for rockfills
Yantu gongcheng xuebao, 2018 The rockfill materials have been widely used in the construction of rockļ¬ll dams due to their high strength, small deformation and strong permeability. The strength and deformation characteristics of the rockfill materials are essential prerequisites to ...
FANG Huo-lang 1,2, CAI Yun-hui 1, WANG Wen-jie 1
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Water Science and Engineering, 2023 Numerical simulation of concrete-faced rockfill dams (CFRDs) considering the spatial variability of rockfill has become a popular research topic in recent years.
Qin Ke +3 more
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Yantu gongcheng xuebao, 2022 Several ultra-high earth and rockfill dams up to 250 to 300 m in height are to be built in the intensive earthquake regions of West China. The strong outburst and high uncertainty of strong earthquakes pose a great threat to the safety of ultra-high ...
ZOU De-gao 1, 2, LIU Jing-mao 1, 2, KONG Xian-jing 1, 2, CHEN Kai 1, 2, QU Yong-qian 1, 2, NING Fan-wei 1, 2, GONG Jin 1, 2
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