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Proceedings Papers

Paper presented at the ISRM International Symposium – EUROCK 2021, September 21–24, 2021
Paper Number: ISRM-EUROCK-2021-147
... theory cable climate change fracture crack06 node bavarian ministry hochvogel crackmeter logger Mechanics and Rock Engineering, from Theory to Practice IOP Publishing IOP Conf. Series: Earth and Environmental Science 833 (2021) 012146 doi:10.1088/1755-1315/833/1/012146 High alpine...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-005
... in the form of a graph, whose nodes are the point sources of sound. We introduce edges in the graph, if the "distances" between two points are smaller than some critical value. The graph connectivity components characterize the attribution of micro seismo-acoustic events to clusters. The initial data...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-069
... of the existing codes TOUGH2, for multi-phase flow and transport, and RBSN, for elasticity and fracture development of geomaterials. One main advantage of the cou- pled TOUGH RBSN simulator is that both codes utilized the same set of nodal points and properties 445 Figure 1. Planar description of nodes...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-098
... by higher-order gradients of the constitutive variables. The higher-order gradients are necessary for the convergence of numerical solutions of either continuum or discrete models (Aifantis 1984, 1987, 2012). Upstream Oil & Gas node zaiser consideration landslide Engineering mechanism real...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-193
... for designing and verification of various types of constructions and rock bolts are no exception. Several special rock bolt elements were created for this purpose. The most widely used elements was presented in the work of Ömer Aydan (1988). The so-called Aydan element is represented by four nodes in its...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2010, June 15–18, 2010
Paper Number: ISRM-EUROCK-2010-142
... level energy consumption. For displacement measurements a high resolution ultrasonic distance measurement device for long distances has been developed. The distance measurement between two nodes work up to 25 m and the accuracy of the determined displacement field will be in the range of cm. Typical...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2010, June 15–18, 2010
Paper Number: ISRM-EUROCK-2010-040
...(x), defined in a stochastic finite element v, (SFE), using finite basis as polynomial, exponential, trigonometric etc; (b) Choosing an incomplete base it is shown the function Z(x) could be presented as a linear combination of the nodes distributions; and (c) Applying a Monte-Carlo process in eight...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2009, October 29–31, 2009
Paper Number: ISRM-EUROCK-2009-050
... machine learning node prediction inference system consequent parameter uniaxial compressive strength neural network Artificial Intelligence strength testing data if-then rule firing strength rock sample Anfis 327 Rock Engineering in Difficult Ground Conditions Soft Rocks and Karst...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2005, May 18–20, 2005
Paper Number: ISRM-EUROCK-2005-117
... of nodes, so the pre-processing of the method is simplified and the approximating function is Continuous with higher-order differentials over the entire domain. The relevant theories ofEFGM are introduced and the derivation of discrete equations using variational principle is presented. The visibility...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2005, May 18–20, 2005
Paper Number: ISRM-EUROCK-2005-118
... parallel element-by-element scheme vector algorithm finite element analysis Engineering processor Parallel Computation matrix Artificial Intelligence Efficiency computing ebe method parallel computer node Computation computer domain decomposition mechanics Eurock 2005 -Impact...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2002, November 25–27, 2002
Paper Number: ISRM-EUROCK-2002-002
... rings (whose diameter is around 0.42 m) confer outstanding mechanical properties to the net sheets and are used today in order to control rock fall trajectories. Such structures, composed of an array of metallic rings, are absolutely singular. A classic metallic net structure is composed of nodes...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2002, November 25–27, 2002
Paper Number: ISRM-EUROCK-2002-085
... element with 8 nodal points. Two of these are connected to the bolt, whereas the six others are connected to the rock masses. The number of nodes in the two-dimensional case is reduced to six. Swoboda & Marence(l992) modified the Aydari's formulation, assigning different coordinates for the bolt nodes...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 96, September 2–5, 1996
Paper Number: ISRM-EUROCK-1996-185
... reservoir geomechanics hydraulic fracturing node Reservoir Characterization flow in porous media discrete feature spatial reasoning Fluid Dynamics fractured rock Fracture Zone algorithm Artificial Intelligence Upstream Oil & Gas Rock mechanics Dershowitz geometry transport...

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