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Keywords: specimen
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Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-193
... conductivity of thermally treated Beishan granite were conducted. Disc specimens preconditioned at 105 °C were heated to different temperatures (200, 300, 400, 550, 650, and 800 °C) and then cooled to room temperature for testing. Scanning electron microscope (SEM) was used to characterize thermally induced...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-236
... Abstract The analysis of microflaws on the surface of rock specimens subjected to diametrical compression (Brazilian test) reveals a statically relevant spatial and temporal connection between the surface damage and the level of the external load. Using the developed approach to interpretation...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-207
... selecting the materials of the steel tube, which is suitable for the frictional steel tube rockbolts. Dynamic direct tensile tests of five steel tube specimens were conducted using a modified split Hopkinson tension bar to investigate the dynamic failure strengths and deformation. The Johnson-Cook model was...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-096
... Corrosion Inhibition Upstream Oil & Gas rockbolt asian rock mechanics symposium 29 saydam Production Chemistry cylinder specimen arrangement stress corrosion Laboratory Methods for Investigation on Stress Corrosion Cracking of Rockbolts and Cable Bolts Serkan Saydama*, Saisai Wua, Hamed...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-211
... Abstract Experimental uniaxial compression loading tests and scanning electron microscope (SEM) tests are carried out on rock-like specimens containing single pre-existing cracks to study the mechanical properties and microscopic damage evolution. The present study has distinguished tensile or...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-008
... symposium 29 uniaxial compression jointed rock jointed rock model compression construction materials frequency specimen jointed rock specimen cyclic uniaxial compression Dynamic Properties of Intermittent Jointed Rocks Under Cyclic Uniaxial Compression with Different Loading Parameters Yi Liua...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-029
... Abstract This paper summarizes a study carried out at the University of Vigo on the mechanical behavior of cylindrical specimens of eight different rocks, focusing on both pre- and post-peak behavior. First, more than 200 intact standard NX-sized specimens were tested under unconfined and...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-009
... folded, sheared and faulted. Because of their complexity, determination of engineering properties can be very difficult (Zhao. 2001). In particular packer tests to determine conductivity yield widely ranging values within short distances and strength tests vary widely between adjacent specimens even when...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-030
..., clearing particles clogging the pore spaces of the existing pathways. This paper investigated on the permeability change of intact and triaxially fractured Kushiro Cretaceous sandstone by transient axial and pore pressure disturbances. In the room temperature, the specimens dimensioned 30 mm in diameter...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-010
... Abstract Unconfined compressive strength (UCS) of rocks is one of the most important parameters in rock engineering, engineering geology, and mining projects. The accuracy of laboratory test results relies highly on the quality of specimens. In some situations, obtaining good quality specimens...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-007
... Abstract The tensile strength of rock is an important property of rock engineering. However, the measurement of tensile strength of rock is often overlooked due to difficulties of specimen preparation and accuracy of testing result. This study adopted the pull-off test to measure the foliation...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-088
... ground bit selection bit wear asian rock mechanics symposium 29 quartz content Upstream Oil & Gas specimen cerchar bit abrasive test gravel Experimental Study on Quantitative Evaluation and Prediction Method of Cutter Bit Wear for Shield Machine in Gravel Ground T. Sasaoka a, K. Urata a, H...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-138
...). The dimensions of the Type-4 membrane specimen from the ASTM standards (thickness 3 mm) are shown in Fig. 1(b). The specimen was molded in a mold corresponding to Type-4 according to ASTM-D638, and the tensile test was carried out after 28 days of curing age. reservoir geomechanics contact...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-118
... Abstract The semi-circular bending (SCB) test is one of the useful testing methods for determining mode-I fracture toughness of rocks. A SCB specimen with an artificial notch is loaded at three points including lower two points and upper single point in the test. In general, there are two...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-198
... direct tensile test asian rock mechanics symposium 29 Upstream Oil & Gas isrm international symposium compression test numerical model hydraulic fracturing Brazilian test specimen brittle rock macroscopic through-going fracture plane tensile strength Three-dimensional Meso-modeling of...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-215
... micro-structure damage evolution of material. SEM method is also applied to fracture section of pre-existing crack specimens which are fractured under uniaxial compression test. The damage degree at initiation stage of specimens are obtained based on the SEM image. Then apply the damage degree to stress...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-119
...-mode (I+II) fracture toughness of the rock was measured under elevated temperatures (up to 600°C) using the ISRM-suggested semi-circular bend (SCB) specimens. The simulation results were validated against analytical predictions. 1. Introduction This study relates to thermal effect on fracture...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-086
... aseismic slip is unknown. Therefore, in this study, to clarify the occurrence condition, characteristics and influence on permeability of aseismic slip, injection-induced slip experiment using cylindrical specimen with a 45° tilted tensile fracture was conducted under the condition 200–500 °C. As a result...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-144
... reinforcing effect by measuring the early-age cracking load and the failure load of the shield segment. strength failure load Chang shield segment structural reinforcement isrm international symposium asian rock mechanics symposium 29 substrate Reservoir Characterization Thickness specimen...
Proceedings Papers

Paper presented at the ISRM International Symposium - 10th Asian Rock Mechanics Symposium, October 29–November 3, 2018
Paper Number: ISRM-ARMS10-2018-224
... compression tests were performed on a composite material made of rock and steel fiber reinforced shotcrete (SFRS). Experiments were conducted with the consideration of stress conditions that prevail in most practical cases of underground opening. Cylindrical specimens were prepared using intact rock of...

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