Results 11 to 20 of about 3,412 (173)

Discrete element simulation of crushable rockfill materials [PDF]

open access: yesWater 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
doaj   +2 more sources

The Wetting Deformation Model of Rockfill and Its Two Methods for Simulating Rockfill Dam Collapse Settlement. [PDF]

open access: yesScientificWorldJournal, 2023
The wetting deformation of the upstream dam shell material during the impoundment of the core wall rockfill dam seriously affects the safety of the dam.
Pan L, Fan Z, Wang D, Zhou X.
europepmc   +2 more sources

Effects of toe configuration on throughflow properties of rockfill dams [PDF]

open access: yes, 2021
Rockfill dams must be equipped with defence mechanisms to counteract the destabilizing effects of throughflow forces under accidental leakage scenarios. A key component of the rockfill dam overtopping system is the rockfill dam toe, constructed in tandem
Rokstad, Marius Møller   +3 more
core   +2 more sources

Hydraulic and structural evaluation of rockfill dam behavior when exposed to throughflow and overtopping scenarios [PDF]

open access: yes, 2020
Dams are vulnerable to extreme flood events in turn leading to accidental overtopping. This inparticular applies to rockfill dams comprised of pervious and erodible material.
Ravindra, Ganesh Hiriyanna Rao
core   +1 more source

Rockfill material uncertainty inversion analysis of concrete-faced rockfill dams using stacking ensemble strategy and Jaya optimizer

open access: yesWater 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
doaj   +1 more source

Particle breakage characteristics of rockfills under complex stress paths

open access: yesYantu gongcheng xuebao, 2018
A series of conventional triaxial tests, isotropic compression tests and complex stress path triaxial tests are conducted to investigate the particle breakage characteristics of rockfills, which are evaluated quantitatively by using the relative breakage
WANG Yuan 1, ZHANG Sheng 2, AO Da-hua 2, YU Yu-zhen 1, SUN Xun 1
doaj   +1 more source

Unified modeling behavior of rockfill materials along different loading stress paths

open access: yesSoils and Foundations, 2022
Rockfill materials used for dam construction show obvious stress path dependency during construction process. The constitutive model for rockfill materials are mainly established based on conventional triaxial test.
Shihai Bian   +4 more
doaj   +1 more source

Experimental and analytical investigation of hydraulic conductivity, energy dissipation, and drag forces in gradually varied flow conditions through rockfill media [PDF]

open access: yesJournal of Applied Research in Water and Wastewater
This paper focuses on the flow of water through rockfill porous media and brings out the effect of various parameters on hydraulic conductivity, friction factors, energy losses, drag coefficients, drag forces, and shear forces for such systems ...
Jafar Chabokpour
doaj   +1 more source

The effect of a dragging anchor on a horizontal layer of rockfill [PDF]

open access: yes, 2015
In the context of the project "Widening of the Juliana Canal" a bottom protection layer is designed by dredging contractor de Vries & Van de Wiel Kust en Oeverwerken.
Crum, S. (author), Crum, S. (Sanne)
core   +1 more source

Experimental study on particle breakage behaviors of rockfill under cyclic loadings

open access: yesYantu gongcheng xuebao, 2017
Using the large-scale dynamic triaxial apparatus, a series of cyclic drained triaxial shearing tests are performed on there kinds of rockfill materials with different confining pressures, consolidation stress ratios and dynamic stress amplitudes to ...
ZHANG Zhen-dong 1, 2, LI Guo-ying 1
doaj   +1 more source

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