Results 1 to 10 of about 423 (176)

Influence of Scale Effect on Strength and Deformation Characteristics of Rockfill Materials. [PDF]

open access: yesMaterials (Basel), 2022
The hybrid method was adopted to model the original gradation of rockfill materials. According to the specification requirements, three simulated gradations of rockfill materials have been obtained. By the same token, the corresponding maximum particle sizes are 20 mm, 40 mm and 60 mm, respectively.
Han H, Li J, Shi J, Yang C.
europepmc   +4 more sources

A simple permanent deformation model of rockfill materials

open access: yesWater 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
doaj   +4 more sources

Strength and stiffness parameters for hardening soil model of rockfill materials

open access: yesSoils and Foundations, 2021
In recent years, an increasing number of rockfill dams have been constructed in many developing countries around the world. One difficulty in the engineering design and construction of rockfill dams is the characterisation of the rockfill materials ...
Raksiri Sukkarak   +3 more
doaj   +3 more sources

Effects of particle size and confining pressure on breakage factor of rockfill materials using medium triaxial test

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2016
Rockfill dams are mostly constructed using blasted rockfill materials obtained by blasting rocks or alluvial rockfill materials collected from the riverbeds.
Ashok Kumar Gupta
doaj   +3 more sources

Modeling the triaxial behavior of riverbed and blasted quarried rockfill materials using hardening soil model

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2016
Riverbed modeled rockfill material from Noa Dehing dam project, Arunachal Pradesh, India and blasted quarried modeled rockfill material from Kol dam project, Himachal Pradesh, India were considered for this research. Riverbed rockfill material is rounded
N.P. Honkanadavar, K.G. Sharma
doaj   +3 more sources

The Role of Nature of Particles on the Behaviour of Rockfill Materials

open access: yesSoils and Foundations, 2006
The nature of the particles of seven alluvial rockfill materials and three quarried rockfill materials are expressed in terms of uncompacted void content and unconfined compressive strength of each of the rockfill materials. Drained triaxial tests are conducted on modeled rockfill materials.
VARADARAJAN, A.   +3 more
exaly   +3 more sources

Discrete element simulation of crushable rockfill materials

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

Slaking deformation model for rockfill materials

open access: yesYantu gongcheng xuebao, 2017
The safety of core wall type rockfill dams during reservoir impounding is greatly affected by the slaking deformation of upstream shell materials. The slaking deformation of the rockfill materials is analyzed using the triaxial slaking tests, in which ...
CHI Shi-chun , ZHOU Xiong-xiong
doaj   +3 more sources

Fractures in non-homogeneous rockfill materials from a micromechanics perspective [PDF]

open access: yesJournal of Hydraulic Structures, 2022
This study investigates particle breakage and cracks propagation of non-homogeneous rockfill materials, particularly conglomerates, from a microscale perspective. The conglomerate's materials were gathered from Masjed-E-Soleyman, MES, rockfill dam, Iran.
Saber Alidadi   +2 more
doaj   +1 more source

Dilatancy behaviors of rockfill materials considering particle breakage

open access: yesYantu gongcheng xuebao, 2021
In order to study the relationship between particle breakage and dilatancy characteristics of rockfill materials under different porosity and stress conditions, the large-scale triaxial tests are carried out on the rockfill materials of a high rockfill ...
SHI Bei-xiao 1, 2, LIU Sai-chao 3, WU Xin-lei 3, CHANG Wei-kun 3
doaj   +1 more source

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