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Keywords: dimension
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Proceedings Papers

Paper presented at the ISRM International Symposium – EUROCK 2021, September 21–24, 2021
Paper Number: ISRM-EUROCK-2021-051
... characterization theory abutment environmental science 833 determination ethiopia government stratigraphy rock engineering matrix upstream oil & gas europe government basalt geological subdiscipline cohesion conglomerate bimrock dimension koysha Mechanics and Rock Engineering, from Theory...
Proceedings Papers

Paper presented at the ISRM International Symposium – EUROCK 2021, September 21–24, 2021
Paper Number: ISRM-EUROCK-2021-103
... to a punching load. Firstly, the role of the specimen dimension and of the punching element size on the result of the laboratory punch test procedure is quantified (Sec. 3). Secondly, based on the results of a large set of simulations, a simple approach that allows the mechanical response of a generic anchored...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-015
... form is defined as the number of fractures per meter, a one-dimensional measure, which is historically referred to as Fracture Frequency, or P10 under the Pij system, and has the dimensions of: 114 M.C. Tonkins and J.S. Coggan / Procedia Engineering 191 ( 2017 ) 112 118 (1) This measure...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-173
... of Kashan, Kashan, Iran A. Esmaeilzadeh Department of Mining and Metallurgical Engineering, Urmia University of Technology, Urmia, Iran ABSTRACT: The fractures geometrical characteristics can be calculated by various sampling methods in 1 dimension (1D) & 2 dimensions (2D). The Discrete Fracture Network...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-174
... aver- aging, the average and standard deviation of bedding trace are considered 16 m and 4 m, respectively. As per the dimension of underground spaces and all 150 sur- veyed beddings are doubly censored proportionate to Scanline, to evaluate the trace length only trace length of J1, J2 and B.P.J...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-028
... of micro-sized specimens made of plagioclase, alkali feldspar, and quartz within Iksan granite (Korea) is evaluated at room temperature, using the testing machine. A micro-sized specimen of a cantilever beam type has dimensions of 10 × 10 × 50 μm. The specimen is made by Focused Ion Beam (FIB) machining...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-110
... observed. Martin and Maybee (2000) used the Hoek-Brown criterion to study the sta- bility of pillar and to take into account the effect of the pillar dimension and the width-to-height ratio. It is noted that the influence of (related to uni- axial compression strength Rc) is considered linear, however...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-118
... correlation Reservoir Characterization reservoir geomechanics rock pillar strength Rock mechanics Upstream Oil & Gas uniaxial compressive strength dimension specimen discontinuity compressive strength rock mass equation Ayre da Silva pillar shape effect São Paulo Rock Mechanics...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-114
... prepared. 4 GENERAL METHODOLOGY CONCLUSIONS A very good relation between results obtained by three dimensional analysis with two dimension ones have been achieved. So we can confirm that the combination of FEM 2D and BEM 3D is a right way to prepare preliminary design of underground excavations...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-027
... to huge consumption of fuel. microwave energy disc cutter microwave macro-crack density Reservoir Characterization aperture dimension Microwave Radiation rock mass Upstream Oil & Gas temperature distribution horn antenna breakage application tunnel boring machine structural...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-002
... allows one to detect traces whose surface dimensions are larger than the resolution. 5 ROCK MASS DEGREE OF FRACTURING Different approaches have been developed by several authors to quantify the rock mass degree of fractur- ing. In the following we describe the two more widely applied in practice: the Jv...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-107
... Model setup The two-dimensional numerical environment repre- sents a rock mass vertical section of 30 m × 30 m size, centered at the DFN s center. The parallel bond model was used to represent the intact rock material. 661 Figure 1. Scheme representing the two-dimensional speci- men dimensions, undercut...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-111
... with the dimensional conditions envisaged by the ModelTheory. Such conditions refer to the dimension- less, or numbers, which must have the same value when averaged over properties, known or accepted, both of the prototype and of the reduced model, in order to satisfy the conditions of similarity between the two...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2013, October 23–26, 2013
Paper Number: ISRM-EUROCK-2013-014
... using the compass or non-contact techniques. From these it is possible to obtain evaluations on the degree of fracturing of a rock mass and on the dimensions of the blocks that can be formed. Such evaluations can be made in either a deterministic or statistical manner, whenever the collected data sample...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2013, October 23–26, 2013
Paper Number: ISRM-EUROCK-2013-086
... & Gas Rock mechanics specimen Bieniawski square section Ayre da Silva compressive strength São Paulo rock mass escola politécnica reservoir geomechanics dimension diameter shape effect pillar Rock Mechanics for Resources, Energy and Environment Kwas´niewski & ydz ba (eds) © 2013...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2013, October 23–26, 2013
Paper Number: ISRM-EUROCK-2013-092
... which results in a significant increase of the effective permeability in this zone. reservoir geomechanics strength waste management Upstream Oil & Gas threshold ti radioactive waste repository Reservoir Characterization repository chamber dimension extension Diederich radioactive...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2012, May 28–30, 2012
Paper Number: ISRM-EUROCK-2012-060
... as well as working principles about these methods. He classified the methods as sub-horizontal jet grouting #1 , injected steel pipe umbrella method #2 and pipe roof method #3 . He cited the applicable steel pipe dimensions as seen in Table 1. He concluded that ground type was distinctive factor...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2012, May 28–30, 2012
Paper Number: ISRM-EUROCK-2012-141
... Numerical delineation of the excavation damage zones: From rock properties to statistical distribution of the dimensions M. Perras C. Langford, E. Ghazvinian & M. Diederichs Queen s University, Canada Abstract: During the construction process, of an underground excavation, the rockmass is damaged...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2010, June 15–18, 2010
Paper Number: ISRM-EUROCK-2010-112
... construction in urban areas. In some stretches of Istanbul Metro, the geometry of underground structures poses rather complicated. Thus, three-dimensional numerical simulations of intersections were of paramount importance in order to properly evaluate the real behaviour of the lining. The simulations were...

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