Results 131 to 140 of about 375 (181)

Testing and Modeling Two Rockfill Materials

Journal of Geotechnical and Geoenvironmental Engineering, 2003
Modeled rockfill materials consisting of rounded and angular particles obtained from two dam sites are subjected to drained triaxial tests using large size specimens. An elastoplastic constitutive model based on the disturbed state concept is adopted to characterize the behavior of the modeled rockfill materials.
A. Varadarajan, K. G. Sharma, K. Venkatachalam, A. K. Gupta   +3 more
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Direct Shear Testing of Rockfill Material

Soil and Rock Behavior and Modeling, 2006
The shear strength of granular materials is mainly derived from the particle sliding friction and resistance resulting from reorientation and sample dilatancy. Parameters affecting the shear strength therefore depend on the relative density, gradation, particle strength, particle size and shape, and degree of saturation of the specimen. In this study a
Xinbao Yu, Shunying Ji, Kerop D. Janoyan
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Factors Influencing the Behavior of Rockfill Materials

2021
In the present experimental work, quarried rockfill material from a Lift Irrigation Project, India has been considered. The largest size of particle (dmax) of the prototype gradation rockfill material is 600 mm. Such a large size rockfill material is not possible to test in the laboratory.
Uday Bhanu Chakraborty, N. P. Honkanadavar   +1 more
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Research on creep deformation of rockfill material and post-construction deformation of rockfill dam

2009
By developing a large scale stress controlled tri-axial testing machine, the creep deformation properties of rockfill material under different conditions were studied. From the laboratory test, it can be found that the creep deformation of rockfill has a direct relationship with cell pressure and stress level.
Zeping Xu, Gang Deng, Haifang Li
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Dynamic optimization of compaction process for rockfill materials

Automation in Construction, 2020
Abstract The automatic adjustment of compaction parameters during a compaction process for increased efficiency is an important part in intelligent compaction (IC). However, there is a lack of effective methods for optimizing compaction parameters.
Zaizhan An, Tianyun Liu, Zhaosheng Zhang, Qinglong Zhang, Zehua Huangfu, Qingbin Li   +5 more
openaire   +1 more source

Constitutive Model for Rockfill Materials and Determination of Material Constants

International Journal of Geomechanics, 2006
Two types of rockfill materials collected from seven sites are modeled and tested under triaxial loading. A constitutive model based on a disturbed state concept is used to characterize the behavior of modeled rockfill materials. The model is shown to provide satisfactory prediction of the observed behavior of the modeled materials.
A. Varadarajan, K. G. Sharma, S. M. Abbas, A. K. Dhawan   +3 more
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Dynamic deformation characteristics of sands and rockfill materials

Canadian Geotechnical Journal, 1993
Cyclic torsional simple shear (CTSS) tests and cyclic triaxial (CTX) tests were carried out to investigate the dynamic deformation characteristics of sands and rockfill materials. It was found that the shear modulus and damping ratio can be expressed as a function of shear strain, void ratio, and confining stress.
Nario Yasuda, Norihisa Matsumoto
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Dilatancy behaviour of rockfill materials and its description

European Journal of Environmental and Civil Engineering, 2020
AbstractThe dilatancy equation plays a significant role in establishing an elastoplastic constitutive model for soils.
Wan-Li Guo, Zheng-Yin Cai, Ying-Li Wu, Chen Zhang, Jun-Jie Wang   +4 more
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A 3D bounding surface model for rockfill materials

Science China Technological Sciences, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Xiao, Yang, Liu, HanLong, Zhu, JunGao, Shi, WeiCheng, Liu, MengCheng   +4 more
openaire   +2 more sources

Large Scale Testing of Rockfill Materials

Journal of the Soil Mechanics and Foundations Division, 1967
A brief description is made of the rockfill laboratory of the Comision Federal de Electricidad in Mexico. Equipment is available for large-scale (specimens 113 cm in diam) triaxial and compressibility testing of granular materials with maximum particle size up to 20 cm, under lateral pressures up to 25 kg per sq cm.
openaire   +1 more source