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Keywords: investigation
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Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-499
... and, as such, measures the compressive strength of rocks. Brinell hardness tests have been widely used in laboratory investigations of processes leading to rock fragmentation in drilling, mechanized tunneling, and mining (Yang et al. 2022). It is an important mechanical property that governs wellbore stability...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-409
...15th ISRM Congress 2023 & 72nd Geomechanics Colloquium. Schubert & Kluckner (eds.) © ÖGG Investigation on the influence of non-stationary trend on the shear strength of rock joints Changshuo Wang Institute of Rock Mechanics, Ningbo University, Ningbo, Zhejiang, China Shigui Du Institute of Rock...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-390
..., the understanding of rate effect of mixed mode I/II fracture behavior in rock is still at its infancy. To investigate mixed-mode fracture under different loading rates, the split Hopkinson pressure bar tests were conducted on cracked straight through Brazilian disc sandstone specimens. The results show...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-442
... s thermo-hydromechanical properties (Fränzer et al. 2023). To understand and specify those changes different rocks from a Jurassic carbonate rock formation in Southern Germany, a formation also targeted for geothermal use, was characterised before and after cyclic thermal loading. We investigated...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-444
...-dependent behavior of the rock mass is primarily controlled by the timedependent deformation of the rock mass discontinuities. While most investigations concerning creep in rock masses have focused on the creep behavior of the intact rock, there is limited experimental data available on the creep behavior...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-388
... ABSTRACT: At low temperature, frost weathering due to the freezing/thawing process of pore water can fracture bedrock permafrost, which is of crucial importance in engineering. We focus on the low-temperature thermal diffusion that is primarily fundamental but poorly investigated...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-012
... in the aquifer limestone above (Prestor et al., 2019). Detailed site investigations, which were carried out in the period of the last twenty years, revealed zones of different degrees of karstification along the route of tunnel T1, differing in the diameter of the cavity and the frequency of the occurrence. Site...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-480
... ABSTRACT: Aktogay is a large open pit copper mine in Kazakhstan. Several geotechnical investigations have been completed from initial scoping and feasibility studies to continuous improvement studies during mining. Rock slope design has involved several phases of stability analyses for various...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-493
... and geophysical investigation of a rock mass for the design check of an ornamental stone quarry Maria Teresa Carriero, Maria Rita Migliazza Department of Structural, Geotechnical and Building Engineering, Polytechnic of Turin, Turin, Italy Cesare Comina, Anna Maria Ferrero, Battista Taboni, Gessica Umili, Sergio...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-008
... with the dominating behaviour of the jointed rock mass, there was a need of complex modelling techniques and considerations in design. The contribution gives an overview over the project, including the morphology, the ground investigation and classification and special risk scenarios. It also provides an insight...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-005
... partings were expected in Tenga and Kimi part of HRT. Figure 2. Geological Longitudinal section of HRT. -28- The initial investigations indicated about 89% of tunnel rockmass to fall in the good to fair rock class (Class- I, II & III) and 11% in poor rock class (Class- IVA & IVB). The rockmass along...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-002
... construction and taking hydrogeological and natural aspects into account. Both variants have a very high impact and require very different requirements on the planning and selection of suitable tunneling methods. In this article the relevant geotechnical, geophysical and rock-mechanical investigations...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-047
...15th ISRM Congress 2023 & 72nd Geomechanics Colloquium. Schubert & Kluckner (eds.) © ÖGG An investigation of the effect of rock brittleness on rockburst prediction in seismically active mines Alexey Sharipov School of Mining and Geosciences, Nazarbayev University, Astana, Kazakhstan Amoussou Coffi...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-046
... normally weaker in relation to the surrounding rock mass is a result of a catastrophic event, merely by the change in its dip. From the investigations it was deduced that when there is a change in the dip of the orebody the surrounding rock mass characteristics allow the orebody to behave in a similar...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-497
... for the geological and geotechnical study for Skavica HPP project, included the data received recently from A.L.T.E.A. & Geostudio 2000 company investigation. These works comprised a careful geological mapping; geological drillings; trial pits; sampling; field testing (SPT, Lugeon test, Le franc test, borehole...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-455
... geologist geology reservoir geomechanics oedometer comparison specimen deformation rock mechanic cyclic oedometer europe government geological subdiscipline conventional oedometer mining science triantafyllidis equilibrium international journal investigation institute result specimen ct-1...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-041
... of this investigation to other scenarios and rock types, paired with a reliable geological prediction, reduces the associated risks for deep geothermal projects. Keywords: geothermal reservoir characterization, borehole stability, fracture energy, laboratory tests, numerical FDEM modeling; North Alpine Foreland Basin...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-136
... to extensive rock fracturing. Due to these impacts the jetties and seawalls displayed serious structural deficiencies, such as differential settlements and potential instabilities. Against this background, a site investigation was carried out for the geotechnical design of the remedial measures. Special...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-141
... ABSTRACT: In geological surveys with a rock engineering focus, the investigation and description of discontinuities is an important but time-consuming and labor-intensive step. With advances in surveying and mapping technology, digital surface models (DSM) and their corresponding point clouds...

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