Results 61 to 70 of about 423 (176)

Grouted rockfill a material between rockfill and concrete

open access: yesGeotecnia, 1985
Define-se enrocamento argamassado e compara-se a sua composição, características e processo de execução com outros materiais afins, tais como o simples enrocamento, o betão injectado, o betão cilindrado, o betão ciclópico, o seixo-cimento, o solo-cimento e o macadame.
openaire   +1 more source

Research on Grouting Pressure of Earth–Rock Dams Reinforced by Polymer Based on Discrete Elements

open access: yesApplied Sciences
As a novel seismic reinforcement measure for earth–rock dams, the PFA-reinforced rockfill materials technology lacks comprehensive investigation into both its reinforcement efficacy and the underlying mechanisms. In this study, we establish a fluid–solid
Yanyuan Lv   +3 more
doaj   +1 more source

Long-term deformation analysis of Shuibuya concrete face rockfill dam based on response surface method and improved genetic algorithm

open access: yesWater Science and Engineering, 2019
Due to the size effects of rockfill materials, the settlement difference between numerical simulation and in situ monitoring of rockfill dams is a topic of general concern.
Fu-hai Yao   +6 more
doaj   +1 more source

Experimental study on sand slate rockfill materials for ultra-high asphalt concrete core dams

open access: yesYantu gongcheng xuebao
A series of tests are conducted on the engineering mechanical properties of sand slate rockfill materials for an ultra-high asphalt concrete core dam. It is found that with the increase of the porosity and slate content, the softening behavior of stress ...
ZHANG Shi 1, WU Shiyong 1, WU Zhong 1, LING Hua 2, 3, FU Hua 2, 3, SHI Beixiao 2, 3
doaj   +1 more source

Experimental study on filling standard of high rockfill dams with soil core

open access: yesYantu gongcheng xuebao, 2019
The monitoring data of high ECRDs have shown that the deformation coordination in dam material zones does not meet the design goal, which is related to the degree of matching in the current specifications of filling for the filtration zone, transition ...
ZHU Sheng 1, 2, ZHONG Chun-xin 1, WANG Jing 1, 2, HE Shun-bin 3
doaj   +1 more source

A three-dimensional elasto-plastic dynamic response procedure for concrete-faced rockfill dams

open access: yesInternational Journal of Distributed Sensor Networks, 2018
Equivalent linear dynamic analysis is the primary method of analysis for concrete-faced rockfill dams during earthquake. However, this method cannot be directly used to estimate permanent deformation during earthquake, which is important to evaluate the ...
Bin Xu, Yang Zhou, Jingmao Liu, Xiang Yu
doaj   +1 more source

Constitutive Modelling of Wetting Deformation of Rockfill Materials

open access: yesInternational 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.
openaire   +1 more source

Major Technologies for Safe Construction of High Earth-Rockfill Dams

open access: yesEngineering, 2016
The earth-rockfill dam is one of the primary dam types in the selection of high dams to be constructed in Western China, since it is characterized by favorable adaptability of the dam foundation; full utilization of local earth, rock, and building ...
Hongqi Ma, Fudong Chi
doaj   +1 more source

Mechanical behavior of rockfill materials - Application to concrete face rockfill dams

open access: yes
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 ».
openaire   +2 more sources

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