Fracture Evolution and Energy Characteristics During Marble Failure Under Triaxial Fatigue Cyclic and Confining Pressure Unloading (FC-CPU) Conditions
Sign Up to like & getrecommendations! Published in 2020 at "Rock Mechanics and Rock Engineering"
DOI: 10.1007/s00603-020-02299-6
Abstract: This work aims at investigating the fracture evolution and energy characteristics of marble subjected to fatigue cyclic loading and confining pressure unloading (FC-CPU) conditions. Although rocks under separated fatigue cyclic loading and triaxial unloading conditions… read more here.
Keywords: pressure unloading; fatigue cyclic; confining pressure; energy ... See more keywords
Deformation and mechanical properties of rock: effect of hydromechanical coupling under unloading conditions
Sign Up to like & getrecommendations! Published in 2020 at "Bulletin of Engineering Geology and the Environment"
DOI: 10.1007/s10064-020-01824-9
Abstract: Mechanical behavior and deformation characteristics of rock under unloading conditions are of particular significance for analyzing excavation-induced instability problems of underground rock masses. In this paper, triaxial compression tests with progressive unloading of confining pressure… read more here.
Keywords: pore pressure; confining pressure; initial confining; unloading conditions ... See more keywords
Damage Evolution of Sandy Mudstone Mechanical Properties Under Mining Unloading Conditions in Gob-Side Entry Retaining
Sign Up to like & getrecommendations! Published in 2019 at "Geotechnical and Geological Engineering"
DOI: 10.1007/s10706-019-00840-1
Abstract: Based on stress evolution induced by mining activity, triaxial confining pressure unloading tests with multiple failure state under multi-level axial stress were conducted on sandy mudstone, which were from the roof above roadside backfill area… read more here.
Keywords: pressure unloading; confining pressure; evolution; mechanical properties ... See more keywords
Effect of Bedding Angle and Mineral Composition on Mechanical Properties and Fracture Behavior of Phyllite Under Unloading Confining Pressures
Sign Up to like & getrecommendations! Published in 2020 at "Geotechnical and Geological Engineering"
DOI: 10.1007/s10706-020-01238-0
Abstract: Studying the mechanical properties of rock mass plays a critical role in reducing the frequency of accidents such as large deformation and rock bursts that often occur in tunnels. In this study, a series of… read more here.
Keywords: confining pressure; phyllite; angle mineral; mineral composition ... See more keywords
Spontaneous imbibition in igneous rocks: effect of KCl concentration, confining pressure, and imbibition direction
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Petroleum Exploration and Production Technology"
DOI: 10.1007/s13202-020-00997-z
Abstract: Understanding spontaneous imbibition helps to determine the fracturing fluid volume and optimize the flowback design. At present, many studies have mainly focused on shale, but few on igneous rocks. As such, in this study, imbibition… read more here.
Keywords: confining pressure; spontaneous imbibition; imbibition; igneous rocks ... See more keywords
Experimental Study on High-Strength Concrete, Ultrahigh-Strength Concrete and Corresponding Mortar Under Triaxial Compression
Sign Up to like & getrecommendations! Published in 2021 at "Arabian Journal for Science and Engineering"
DOI: 10.1007/s13369-021-05663-y
Abstract: Based on uniaxial and triaxial compression tests, the present study investigates the mechanical properties of high-strength concrete (HSC), ultrahigh-strength concrete (UHSC) and the corresponding mortars with the same mix proportions of the matrixes of two… read more here.
Keywords: confining pressure; strength concrete; failure; strength ... See more keywords
Effect of crack density on crack initiation and damage for high confining pressure using wave velocities
Sign Up to like & getrecommendations! Published in 2024 at "Geomechanics and Geophysics for Geo-Energy and Geo-Resources"
DOI: 10.1007/s40948-024-00802-9
Abstract: The study of progressive failure of reservoir rocks is very important for the stability analysis of ultra-deep boreholes. The progressive failure can be characterized by the crack initiation stress (CI), crack damage stress (CD) and… read more here.
Keywords: crack; crack density; confining pressure; peak ... See more keywords
Investigate on the mechanical properties and microscopic three-dimensional morphology of rock failure surfaces under different stress states
Sign Up to like & getrecommendations! Published in 2024 at "Geomechanics and Geophysics for Geo-Energy and Geo-Resources"
DOI: 10.1007/s40948-024-00833-2
Abstract: The macro and micro morphology of rock failure surfaces play crucial roles in determining the rock mechanical and seepage properties. The morphology of unloaded deep rock failure surfaces exhibits significant variability and complexity. Surface roughness… read more here.
Keywords: confining pressure; failure; failure surfaces; rock failure ... See more keywords
Effect of temperature and confining pressure on the evolution of hydraulic and heat transfer properties of geothermal fracture in granite
Sign Up to like & getrecommendations! Published in 2020 at "Applied Energy"
DOI: 10.1016/j.apenergy.2020.115290
Abstract: Abstract The hydraulic and heat transfer properties of artificial fracture networks are key to the efficiency of energy production from geothermal reservoirs. To date, no conclusive view exists of the evolution in fracture permeability and… read more here.
Keywords: heat; confining pressure; temperature; heat transfer ... See more keywords
Study on the strength and deformation property of frozen silty sand with NaCl under tri-axial compression condition
Sign Up to like & getrecommendations! Published in 2017 at "Cold Regions Science and Technology"
DOI: 10.1016/j.coldregions.2017.01.008
Abstract: Abstract In order to explore the mechanical behavior of frozen silty sand with NaCl, silty sand was taken as objective and reconstructed with a NaCl content of 1.0% (close to natural content). Tri-axial compressive experiment… read more here.
Keywords: silty sand; confining pressure; frozen silty;
Numerical 3D modeling of the effects of strain rate and confining pressure on the compressive behavior of Kuru granite
Sign Up to like & getrecommendations! Published in 2017 at "Computers and Geotechnics"
DOI: 10.1016/j.compgeo.2017.03.004
Abstract: Abstract This paper deals with numerical modeling of the compressive behavior of granite rock under high strain rate dynamic loading and wide range of confining pressure. For this end, a constitutive model based on damage… read more here.
Keywords: confining pressure; strain rate; rate; numerical modeling ... See more keywords