Results 71 to 80 of about 375 (181)

Constitutive Modelling of Wetting Deformation of Rockfill Materials

International Journal of Civil Engineering, 2018
In this paper, the constitutive framework of hypoplasticity is used to model long-term deformations and stress relaxations of weathered and moisture sensitive rockfill materials. The state of weathering of the material is represented by a so-called solid hardness in the sense of a continuum description.
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Study on overtopping-induced breach mechanisms of concrete-face rockfill dams

Yantu gongcheng xuebao
Overtopping failure of concrete-face rockfill dams involves a complex water-soil-structure coupling mechanism. Through flume model experiments and based on the theories and methods of water-sand dynamics, soil mechanics, and material mechanics, this ...
ZHAO Kunpeng1 , CHEN Shengshui1, 2, 3, ZHONG Qiming1, 2, 3 , DENG Zhao1, SONG Zhitong1
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Gradation evolution model based on particle breakage characteristics for rockfill materials

Yantu gongcheng xuebao, 2019
Particle crushing will change the density and gradation curves of geotechnical materials, and then influence their stress-strain behavior. The proposed gradation evolution model, based on the particle breakage characteristics of natural rocks, is to ...
ZHAO Fei-xiang 1, 2, CHI Shi-chun 1,2, MI Xiao-fei 1, 2
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Mechanical behavior of rockfill materials - Application to concrete face rockfill dams

Comportement mécanique des enrochements - Application aux barrages à masque amont en béton. Le barrage poids en enrochement dont l’étanchéité est assurée par un masque en béton sur sa face amont est de plus en plus utilisé aujourd’hui. Son appellation courante est « CFRD1 ».
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Back Analysis on Static and Dynamic Characteristics of Zipingpu CFRD under 5.12 Wenchuan Earthquake

工程科学与技术, 2010
:According to 5.12 Wenchuan earthquake peak acceleration attenuation relations, EW, NS, UD direction of the decided dam bedrock ground peak acceleration are 510 gal, 450 gal, 420 gal, and then measured acceleration records(051MXT) are conversion to the ...
zhusheng
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Delayed crushing time for particles of rockfill materials

Yantu gongcheng xuebao
The delayed crushing of rockfill particles is specifically referring to the crushing of particles after loading for a certain period time, which is the basis for the rheological deformation calculation using the discrete element method (DEM).
CHI Shichun 1, 2, WANG Tengteng 1, 2, JIA Yufeng 1, 2
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Strength and deformation characteristics of rockfill materials

Geotecnia, 1979
In the last years, some authors have found to set up rheological models for rockfill materials. This article analyses the most important literature on the subject some suggestions based on laboratorial tests performed in LNEC are made. Three questions are particularly stressed: the study of deformability based on  considerations about the ...
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Global sensitivity analysis of parameters based on sPCE: The case study of a concrete face rockfill dam in northwest China. [PDF]

PLoS One, 2023
Ran L, Yang J, Ma C, Cheng L, Zhou M.
europepmc   +1 more source

Sensitivity analysis of counterweight double-row pile deformation to weak stratum parameters. [PDF]

Sci Rep, 2023
Wang Q, Niu Y, Ma F, Lu S.
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Research Progress on Failure Probability Analysis of Earth-Rockfill Dams Based on Random Field Models

Renmin Zhujiang
The physical and mechanical parameters of rock and soil inside earth-rockfill dams have strong spatial variability. Random field models can accurately model and analyze failure probability through scientific methods, which helps to better evaluate dam ...
WANG Wei, LIAO Zhihao, LIAO Jielin
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