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The Applicability of Brazilian Test Loading with Different Platens to Measure Tensile Strength of Rock: A Numerical Study
The Brazilian test is extensively used to indirectly measure the tensile strength of rock. However, the Brazilian tensile strength (BTS) does not...
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Permeability–Friction Relationships for Propped Fractures in Shale
Controls on fluid transfer into massive hydraulic fractures are investigated due to reactivation of, and proppant penetration into, oblique fractures...
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End friction and its effect on crack propagation in fractured rock specimens
Crack propagation of the rock specimen containing a central closed flaw at different end friction coefficients ( µ ) under uniaxial compression and...
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High-density polyurethane rigid foam usability as liner support material in rock engineering
To eliminate the problems like brittle material characteristics, low crack resistivity, low tensile strength values, late curing time and rebound...
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Study on the tensile characteristics of Brazilian split in remolded loess based on resistivity and DIC techniques
Landslides, ground fissures, and soil collapses are common natural disasters frequently associated with the tensile strength of loess. However, due...
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Physical modeling and arbitrary Lagrangian–Eulerian finite element analysis of indentation of a sensitive clay by a flat-ended axisymmetrical indenter
Because indentation tests which are used in several engineering fields allow obtaining material strength parameters in a fast, reliable and...
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Salt Creep: Transition Between the Low and High Stress Domains
In 2014–2016, creep tests were performed in a dead-end drift of the Altaussee mine, where temperature and relative humidity experience very small...
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Investigation on Measurement of Vibration Amplitude by Torsional Resonant Column Apparatus
Modulus reduction and dam** ratio variation with small shear strain amplitudes that are important in dynamic calculations are measured by a...
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A new numerical model of ring shear tester for shear band soil considering friction-induced thermal pressurization
In this study, a new numerical model of ring shear tester for shear band soil of landslide was established. The special feature of this model is that...
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Effect of Defects on Uniaxial Compressive Strength and Point Load Strength for Rock
Uniaxial compressive strength (UCS) and point load strength (PLS or Is (50) ) are fundamental mechanical parameters in rock engineering. Investigating...
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Elastoplastic Damage Modeling of Rock Spalling/Failure Induced by a Filled Flaw Using the Material Point Method (MPM)
AbstractThe spalling/failure of rocks often occurs at the underground opening surface during excavation activities, which may also be seriously...
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Assessment of coal pillar strength under the influence of sand stowing in deep coal mines
Backfilling in goaf after pillar extraction seems to be a promising technology to help exploit these standing pillars. This paper presents the...
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Weakening of Compressive Strength of Granite by Piezoelectric Actuation of Quartz Using High-Frequency and High-Voltage Alternating Current: A 3D Numerical Study
Piezoelectric excitation of quartz mineral phase in granite using high-frequency and high-voltage alternating current (HF-HV-AC) is a potential new...
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Laboratory and Numerical Modeling of the Effects of Width-to-Height Ratio on the Strength and Deformation Behavior of Pillars Composed of Porous, Weak Limestone
The impact of the width-to-height ratio ( w / h ratio) on rock strength and deformation behavior of rock pillars has been studied extensively since the...
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Assessment of Direct Tensile Strength Tests in Rock Through a Multi-laboratory Benchmark Experiment
This study aims to experimentally assess repeatability and reproducibility of direct tensile strength (DTS) tests with deformability measurements on...
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Experimental study on grouting seepage characteristics of single-fracture specimen under three-dimensional stress
In underground engineering, the complex stress state is the main factor of the permeability characteristics of fractured rock mass. It is of great...
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Influence of Intermediate Principal Stress on the Strainburst Characteristics of Beishan Granite with Consideration of End Effect
An experimental study on the strainburst characteristics of Beishan granite under different intermediate principal stress ( σ 2 ) loading conditions was...
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Couple Effect of Joint Pore Pressure and Joint Orientations on Rock Strength Based on Numerical Modeling
The joint pore pressure inside rock mass significantly affects groundwater bursting. To investigate the couple effect of joint pore pressure and...
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Load Settings and Numerical Calculations
This chapter focuses on the initialization of model parameters, load settings, the precision of simulation settings, and saving files in numerical...
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Experimental Study of Strainbursts Caused by Stress Concentration and Local Mine Stiffness Decrease as Mining Proceeds
The important role of local mine stiffness (LMS) on rock strainbursts has been extensively recognized. Understanding the evolution of LMS as mining...
