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Keywords: procedure
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Proceedings Papers

Paper presented at the ISRM International Symposium – EUROCK 2021, September 21–24, 2021
Paper Number: ISRM-EUROCK-2021-103
... procedures that are poorly representative of the in- eld conditions, and therefore their results cannot be directly used in the design phase [1]. This highlights the need of a procedure that can provide a more realistic characterization of the eld response of anchored wire meshes. The realization of large...
Proceedings Papers

Paper presented at the ISRM International Symposium – EUROCK 2021, September 21–24, 2021
Paper Number: ISRM-EUROCK-2021-192
... to guarantee an adequate level of safety, which is measured through the reliability of the system. The reliability-based design consists in a procedure which allows considering the random nature of the parameters describing a structure and the actions on it [20]. In the framework of the ultimate limit state...
Proceedings Papers

Paper presented at the ISRM International Symposium – EUROCK 2021, September 21–24, 2021
Paper Number: ISRM-EUROCK-2021-029
... the adopted swelling test methodologies at all three institutions are grounded in the ISRM standards. Different mindsets in how to forecast the challenges related to swelling are, however, reflected in the boundary conditions of test procedures and the internal modifications on the test apparatus...
Proceedings Papers

Paper presented at the ISRM International Symposium – EUROCK 2021, September 21–24, 2021
Paper Number: ISRM-EUROCK-2021-061
... Euclidean distances between each member of a set, P, of N vectors of dimension K and all other vectors of the same set. Thereafter, a gradient descent-based iterative procedure adjusts the locations of an ordered set T of N randomly initialized 2D position vectors, where an order-preserving mapping, g...
Proceedings Papers

Paper presented at the ISRM International Symposium – EUROCK 2021, September 21–24, 2021
Paper Number: ISRM-EUROCK-2021-009
... of different lithology (marl, calcareous marl, limestone, sandstone, quartz sandstone and rhyolite) that occur in Italy. Firstly, a specific field procedure to choose the reference value of the rebound index adopted to calculate UCS of intact rock is suggested. A relationship between L and N hammer rebound...
Proceedings Papers

Paper presented at the ISRM International Symposium – EUROCK 2021, September 21–24, 2021
Paper Number: ISRM-EUROCK-2021-050
... of Technology qian.liu@tugraz.at Abstract. This study proposes a processing procedure to extract the 3D rock structure directly from point clouds using open source software. The basic processing involves: (1) estimating the Hough s normal of each point; (2) converting the normal to dip direction and dip...
Proceedings Papers

Paper presented at the ISRM International Symposium – EUROCK 2021, September 21–24, 2021
Paper Number: ISRM-EUROCK-2021-046
..., University of Turin, via Valperga Caluso 35, 10125 Turin, Italy gessica.umili@unito.it Abstract. Discontinuities are an intrinsic characteristic of rock masses, and they appear at every scale of a technical survey. Issues related to the procedure's duration and the operator's safety during the survey have...
Proceedings Papers

Paper presented at the ISRM International Symposium – EUROCK 2021, September 21–24, 2021
Paper Number: ISRM-EUROCK-2021-069
... Abstract Salt weathering is one of the crucial causes of building stone decay. For assessing the durability of stones against salt weathering, a standardised test procedure (EN 12370:2020 Determination of resistance to salt crystallisation) is used: the mass loss of the stone is measured...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-005
... a IAM FEB RAS, Radio str. 7, Vladivostok, 690041, Russia b IGD FEB RAS, Turgeneva str. 51, Khabarovsk, 680000, Russia Abstract The practical algorithm for determination of burst hazard zones using data from an automated system of mining pressure control is suggested. A procedure of an emergence...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-017
.... flow in porous media Reservoir Characterization Upstream Oil & Gas reservoir geomechanics Fluid Dynamics specimen ultrasonic measurement malm limestone permeability porosity procedure saturation tensile strength Germany dolomite effective stress limestone ultrasonic wave velocity...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-062
... material of the Particle Flow Code. 2. Calibration approaches when modelling with PFC The number of micro-properties, which define the contact models and are required to calibrate the models, is quite large. There are different calibration procedures as suggested by Itasca [4] (Fig. 1) or the suggested...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-172
... vanguardia procedure excavation cerro vanguardia open pit mining Rock Mechanics and Rock Engineering: From the Past to the Future Ulusay et al. (Eds) © 2016 Taylor & Francis Group, London, ISBN 978-1-138-03265-1 Cerro Vanguardia open pit mining: Database management for stability analyses I.G. Mendive...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-143
...). Geomechanical methods based on empiri- cal and analytical procedures (mostly in coal mining Junker 2009) and static calculations (in underground engineering) facilitate to specify a loading of support constructions. The assessment of real load-bearing capacity of rigid or yielding steel arch support...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-197
..., the improve- ment of its monitoring accuracy is a key issue for practical applications. In this paper, a simple multi-temporal analysis is proposed for this purpose. In order to verify the procedure, the monitoring of the subsidence in a city in Indonesia is shown as an example. The results are then compared...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-002
... processing of rock surfaces Geometrical model set-up for Discrete Element models based on stochastic evaluation of rock structure at the grain size level Implementation of stochastically distributed micro-cracks into continuum models and Discrete Element models Figure 1 illustrates a procedure based...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-033
... ABSTRACT: Basic friction angle is an essential parameter when estimating shear strength of rock joints, according to Barton's equation and other approaches. Nevertheless, there is still no standard procedure to estimate it by means of laboratory testing. This study investigates the influence...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-062
... ABSTRACT: An enriched finite element procedure is proposed for formulating interaction of steel rock bolt along with multiple joints in a rock mass. This numerical method involves analysis of bolt behavior with varying joint dip angle, bolt angle, joint-bolt-grout properties in extended finite...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-179
... Artificial Intelligence reservoir geomechanics numerical method strength factor Reservoir Characterization Upstream Oil & Gas esan company production level procedure numerical model rock mass classification system Turkey unsupported condition support material metals...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-137
..., pronounced topographic relief, deep groundwater circulation, transient coupled heat/fluid transfer, uplift/erosion and thermal history. During tunnel excavation the rock temperatures were measured. The procedure has been verified by comparing measurement and prediction under Alpine conditions, namely...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-025
... Artificial Intelligence Ruiz fragmentation model procedure complex reservoir Rockfall Block Size Distribution empirical approach Upstream Oil & Gas geotechnical engineering size distribution hydraulic fracturing fracture pattern original block rock mass IBSD deposit RBSD...

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