Journal ArticleDOI
Shear behavior of Beishan granite fractures after thermal treatment
TLDR
In this paper, a series of thermally-treated Beishan granite samples including a rough fracture were conducted, and the thermal treatment temperature was up to 400°C and the results showed that fracture shear stiffness and peak strength decreased with increasing thermal treatment.About:
This article is published in Engineering Fracture Mechanics.The article was published on 2019-05-15. It has received 45 citations till now. The article focuses on the topics: Direct shear test & Fracture toughness.read more
Citations
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Journal ArticleDOI
Spatial gradient distributions of thermal shock-induced damage to granite
TL;DR: In this paper, the spatial gradient distributions of thermal shock-induced damage to granite with respect to associated deterioration mechanisms were investigated by computed tomography (CT) and image analysis techniques, and the influence of the preheating temperature on the spatial gradients of the damage was discussed.
Journal ArticleDOI
Experimental investigation on hydraulic fracturing of granite specimens with double flaws based on DIC
TL;DR: In this paper, an experiment of hydraulic fracturing on double-flaw granite specimens was performed, and a quantitatively study based on digital image correlation (DIC) was achieved.
Journal ArticleDOI
Effect of Thermal Treatment on the Basic Friction Angle of Rock Joint
TL;DR: In this paper, the authors investigated the influence of temperature on the basic friction angle of three kinds of rock joints, namely, granite, marble, and red sandstone joints, and provided useful data in establishing a peak shear strength criterion for rock joints by considering the temperature effect.
Journal ArticleDOI
Acoustic emission uncovers thermal damage evolution of rock
TL;DR: In this paper, the authors explored the thermal damage evaluation in a rock and established a thermal damage evolution model which takes into account both heating and cooling processes, and two different microstructural explanations were found, i.e. heterogeneous microstructure and microdefect structure.
Journal ArticleDOI
Effect of fluid pressure heterogeneity on injection-induced fracture activation
TL;DR: In this paper, the authors study the development of fluid pressure heterogeneity in a rock fracture and its influence on the injection-induced activation of the fracture, and show that when the fluid pressure is highly heterogeneous, fracture rupture can be induced in the area with highly pressurized fluid, and propagates to activate the entire fracture.
References
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Book
Fundamentals of rock mechanics
John Conrad Jaeger,N. G. W. Cook +1 more
TL;DR: In this article, Mecanique des roches and Analyse des contraintes were used to construct Elasticite Reference Record (ER) and Elasticite reference record (ER).
Journal ArticleDOI
A bonded-particle model for rock
D.O. Potyondy,Peter Cundall +1 more
TL;DR: In this paper, a numerical model for rock is proposed in which the rock is represented by a dense packing of non-uniform-sized circular or spherical particles that are bonded together at their contact points and whose mechanical behavior is simulated by the distinct element method using the two-and three-dimensional discontinuum programs PFC2D and PFC3D.
Journal ArticleDOI
High-temperature mechanical, physical and Thermal properties of granitic rocks— A review
TL;DR: An extensive literature review was performed to assemble data on the following properties: modulus, Poisson's ratio, tensile strength, compressive strength, viscosity, thermal expansion, density, permeability, melting temperature, heat of fusion, specific heat, thermal conductivity and thermal diffusivity.
Journal ArticleDOI
Numerical simulation of a direct shear test on a rock joint using a bonded-particle model
Jung-Wook Park,Jae-Joon Song +1 more
TL;DR: In this paper, the feasibility of reproducing a rock joint using the contact bond model was demonstrated, and the effects of the geometrical features and the micro-properties of a joint on its shear behavior were examined.
Journal ArticleDOI
Friction in faulted rock at high temperature and pressure
TL;DR: In this article, a study of the frictional behavior of seven low-porosity silicate rocks was made at temperatures to 700°C and pressures from 2.5 to 6 kbar.