... ABSTRACT: In this study, quasi-static biaxial compression tests are conducted on rock-like cement mortar materials to examine the effect of shape, orientation, and interaction of pre-existing defects representing the rock mass with fissures created by nature or hydrofracturing. The mechanical...

... investigated in uniaxial compression indicates, that avoiding an abrupt rupture by using a stiff testing machine, fracturing results in decreasing elasticity with decreasing strength (Bieniawski 196), see Figure 1. Triaxial compression tests show, that during the process of fracturing the angle of friction...

... yielding element tunnel compression configuration installation austria government reservoir characterization stiffness deformation high-strength expanded polystyrene hs-ep yielding element implenia austria gmbh 15th ISRM Congress 2023 & 72nd Geomechanics Colloquium. Schubert & Kluckner (eds...

... upstream oil & gas metals & mining stability deformation deposit evaluation mechanism strength envelope geology reservoir characterization envelope confinement national autonomous university compression criterion figure 7 estabilidad cnica rock mechanic institute figure 3...

... ABSTRACT: Previous studies have investigated static cracks and pores before and after compressive tests of 3D-printed (3DP) rock with limitations in describing real-time cracking and damage evolution during compression. In this study, compression tests were conducted on 3DP gypsum rocks using...

... and both increases with confining pressure. From compression tests, the static Young's modulus E 0 ° , E 45 ° , E 90 ° increase with confining pressure but decrease dramatically of soaked samples. In conclusion, the dynamic Young's moduli exceed static values regardless of direction, confining pressure...

... of the geomaterials under stress also play important roles in the mining, civil, and hydraulic engineering. complex reservoir reservoir characterization structural geology reservoir geomechanics hydraulic fracturing scanner ct scanner resolution compression geoact shale specimen deformation...

... show that the crack growth and coalescence processes are influenced by flaw geometry and interactions between flaws (Yang et al., 2013; Yang et al., 2009; Zhou et al., 2018). reservoir geomechanics loading regime upstream oil & gas reservoir characterization rock mechanic compression...

... rock mech shear plane rock mechanic plaster specimen weakness plane compression mechanism Rock Mechanics for Natural Resources and Infrastructure Development Fontoura, Rocca & Pavón Mendoza (Eds) © 2020 ISRM, ISBN 978-0-367-42284-4 Shear behavior of rock mass containing non-persistent joints...

... characteristic schistosity nephogram rock mechanic international journal plane mineral composition reservoir geomechanics correlation sandstone layered gneiss reservoir characterization gneiss loading foliation investigation coalescence compression experimental investigation...

... reservoir characterization strength ae waveform proportion reservoir geomechanics mechanism compression frequency specimen jointed granite granite specimen acoustic emission loading frequency characteristic distinction wellbore design granite waveform jointed granite specimen...

... for researching water inrush mechanism in geotechnical engineering. structural geology compression equation probability flow in porous media characteristic geotechnical engineering expression permeability rock mechanic upstream oil & gas seepage instability experiment porosity tpe fluid...

... of rock structures. In this study, three consolidated-drained triaxial tests of Japanese mudstones are conducted with measuring six full strain tensor, and the deformation anisotropy in each specimen is detected. The results demonstrated as follows; Strain tensor responses during triaxial compression...

... Abstract The uniaxial compressive strength of Belencito Claystone was studied through hydric-loading and mechanical-loading path tests. Short-term uniaxial compression tests on conditioned specimens at different values of suction and long-term hydro-mechanical tests using a climatic box were...

... Abstract In this study, Chen and Bazant's microplane damage model for rocks has been implemented into ABAQUS through a VUMAT subroutine. Numerical modeling for gypsum specimens with a single fracture under unaixal compression show the advantage of the model. It can be seen that the macroscopic...

... strain-hardening and -softening, creep and shrinkage into account (Schädlich & Schweiger 2014). Most of the input parameters are generally derived from standard uniaxial-tension- and compression-tests on concrete (PLAXIS 2019). Considering the post peak behavior of most HSSRs, the capability...

... wellbore design reservoir geomechanics toughness upstream oil & gas variation fracture mechanism hydraulic fracturing reservoir characterization fracture toughness rock mechanic wellbore integrity propagation gunzburger compression propagate limestone instability experiment...

... reservoir characterization mechanism sensor structural geology non-proportional loading triaxial non-proportional loading evolution loading sandstone compression karev zaitsev damaskinskaya unequal-component compression localization ae activeness upstream oil & gas...

... source method was proposed to measure the thermal conductivity of the thermally treated specimens under uniaxial compression. The stress-and-deformation-dependent thermal conductivities of the specimens were investigated. The experimental results indicate that the thermal conductivity varies nonlinearly...

... hydraulic fracturing compression fracture geometry reservoir geomechanics loading international journal upstream oil & gas reservoir characterization coalescence uniaxial compression specimen rock mechanic marble specimen strength sandstone specimen correlation static...