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Keywords: correlation
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Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-042
...15th ISRM Congress 2023 & 72nd Geomechanics Colloquium. Schubert & Kluckner (eds.) © ÖGG Correlations between thermal properties and elastic wave velocities of volcanic rocks Shuai Feng Graduate School of Engineering, Kyoto University, Kyoto, Japan Weiren Lin Graduate School of Engineering, Kyoto...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-004
... properties for the drilling velocity. With the drilling velocity showing a good correlation with the uniaxial compressive strength, testing was carried out accordingly (Thuro 1996). Additionally, the CAI, LAC and equivalent quartz content were determined as a measurement for the abrasivity of the rock...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-451
.... The determination of the modulus at site is often expensive, laborious, and challenging. Alternatively, empirical correlations based on intact rock properties and joint attributes are used. These approaches are derived from field and laboratory studies. In this article an experimental study is discussed to have...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-046
..., with the resulting insights and correlations leading to amelioration strategies. 2 OVERVIEW 2.1 Location and orebody mined The operation is located 90km from the city of Johannesburg, Gauteng, South Africa and is situated -277- on the far Southern section of the West Rand goldfields. It forms part of the greater...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-468
... operations. Additionally, no tensile stresses were observed. Figure 4 displays the correlation matrix of the key parameters of all simulated scenarios. Maximum reservoir pressures (water and CO2) in the upper and lower reservoir have a strong negative correlation with the respective safety factors...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-499
...15th ISRM Congress 2023 & 72nd Geomechanics Colloquium. Schubert & Kluckner (eds.) © ÖGG A study on the correlation between Hoek Brown mi constant and Brinell hardness of intact rocks Anastasios Tsikrikis Department of Environmental Engineering, International Hellenic University, Thessaloniki...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-070
... measurement (Karakus et al. 2014; Ali et al. 2021). The methods are best suited for situations where the conventional methods are not applicable and only the exploration cores are available. Numerous studies conducted by researchers have demonstrated a high correlation between the estimated stresses obtained...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-060
... the correlation between numerically simulated Rate of Energy Release (RER) and measured seismic potency in the real rock mass. RER is defined as the rate of elastic strain energy emitted into the surrounding rock as a result of abrupt fracture or deformation. RER has proven to be a good candidate...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-084
... created by nature or hydrofracturing. The mechanical and fracturing characteristics are investigated by stress-strain response, acoustic emission, digital image correlation and synchrotron X-ray computed tomography techniques. Results show the biaxial compression strength increases with confinement...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-078
... at four points on the tunnel face for Granite and Gneiss. -472- 4.2 2D and 3D Relaxation Correlation & Face Extrusion As the tunnel advances, confinement decreases, resulting in stress-induced deformations. Face extrusion is interrogated to understand the amount of induced relaxation as the tunnel...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-093
... is statistically related with thrust force and advance rate, a more accurate estimation of settlement can be obtained. In this study, using simple statistical methods, such as Pearson correlation, R2 (coefficient of determinations), RMSE etc., ten parameters, which demonstrate good correlation with penetration...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-101
... on the joint surface based on alteration degree. 3 RESULTS The joint surface characterization tests consist of a raw dataset containing manually collected Ja and Jr and measured data, including HLD elemental compositions JRC, and Rs. Using the collected data, a correlation analysis was carried out to find...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-180
... Preliminary analysis of the data shows that several collapses were preceded by heavy rain events some days or weeks earlier. A correlation was investigated between the occurrence of the 139 collapses dated with daily precision and the 447 main rainy events recorded by Météo France (the French national...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-187
... hazard assessment spatial variability geological subdiscipline hazard assessment correlation upstream oil & gas chile government reservoir characterization prediction natural hazard intensity expertise verdel delonca magnitude engineering gunzburger earth system science 15th ISRM...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-191
..., a weak but positive correlation is observed between the amount of groundwater level change and increased stress. INTRODUCTION Coseismic changes in groundwater level have been observed in many seismically active places of the world (Chia et al. 2008 and Shi et al. 2015). When seismic waves pass...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-236
... measured in UCS tests were used to anticipate the regional displacement. Also, another instrument named smart MPBX s were used for modelling accurate movement. All results of monitoring have been recorded and correlated with mining activities. In conclusion, a new access drift on the footwall has been...
Proceedings Papers

Paper presented at the 15th ISRM Congress, October 9–14, 2023
Paper Number: ISRM-15CONGRESS-2023-286
...15th ISRM Congress 2023 & 72nd Geomechanics Colloquium. Schubert & Kluckner (eds.) © ÖGG The correlation between aperture evolution and induced seismicity during simulated hydraulic fracturing in lab-scale coal samples Xin Zhang University of New South Wales, Sydney, Australia Guangyao Si...

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