Results 141 to 150 of about 423 (176)
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Large Scale Testing of Rockfill Materials
Journal of the Soil Mechanics and Foundations Division, 1967A 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.
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State-Dependent Constitutive Model for Rockfill Materials
International Journal of Geomechanics, 2015AbstractA series of large-scale triaxial compression tests on Tacheng rockfill material (TRM) showed that the dilatancy and stress-strain behaviors were significantly influenced by density and pressure. The critical state friction angle of TRM decreased with an increase in the initial confining pressure.
Yang Xiao +4 more
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Tests on Cohesionless Materials for Rockfill Dams
Journal of the Soil Mechanics and Foundations Division, 1969An account is given of the tests carried out at the ISMES laboratories to set up techniques for testing cohesionless rockfill dam materials. A newly devised chamber formed of alternating rigid and deformable rings for confined compression tests is described.
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Unmanned rolling compaction system for rockfill materials
Automation in Construction, 2019Abstract The compaction quality of earth–rock dams is mainly controlled by compaction parameters (the number of compaction passes, compaction trajectory, vibration frequency, lift thickness, and driving speed) during construction. However, relying on the operator to implement control of the compaction parameters can result in unrolled, cross-rolling,
Qinglong Zhang +5 more
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Automatic learning for patterning the behavior of rockfill materials
2015In order to deal with the ill-posed problem of material parameter identification for rockfill materials, a procedure based on machine learning is proposed. In this investigation the results of a comprehensive set of tests on rockfill materials are examined.
Garcia Silvia +2 more
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Testing and modeling of the state-dependent behaviors of rockfill material
Computers and Geotechnics, 2014Abstract Dense Tacheng rockfill material (TRM) exhibits strain softening and dilation during drained triaxial tests, and therefore, an adapted Rowe’s stress–dilatancy equation was proposed for TRM. This equation incorporates an internal state index related to the density and pressure, as well as the coefficient of particle breakage and rotation.
Yang Xiao +4 more
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Aspects concerning the shear strength of rockfill material in rockfill dam engineering
geotechnik, 2017Ronald Haselsteiner +2 more
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Engineering Behavior of Alluvial Rockfill Material
2021Uday Bhanu Chakraborty +1 more
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A theoretical model for evaluating the deterioration of mechanical properties of rockfill materials
Computers and Geotechnics, 2023Gang Ma, Xiaolin Chang
exaly