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Keywords: rock massif
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Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-005
... measuring complex "Prognoz ADS" is installed on a number of burst hazard fields [1, 2]. It operates to measure and process the parameters of the geo-acoustic activity, which reflects changes in processes of deformation and redistribution of stresses in the rock massif under the influence of mining...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-144
... rockburts. coalfield seam consequence overburden mechanism rock mass high overburden ptá�ek procedia engineering 191 Reservoir Characterization Czech prediction local prediction rockburst occurrence metals & mining deformation rock massif rockburst prevention rockburst okcf...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2015, October 7–10, 2015
Paper Number: ISRM-EUROCK-2015-193
... Abstract Rock bolts as construction elements are often used in underground civil engineering projects. We used Aydan finite elements for numerical description of rock bolt reinforcement and isoparametric bilinear finite elements for description of rock massif. We derived corresponding...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2010, June 15–18, 2010
Paper Number: ISRM-EUROCK-2010-061
... by the origin: man-caused and natural-resonance. It is shown that in the absence of amplitude modulation of microseismic background as a whole, an external disturbance coming from the environment, such as the tidal force causes responses of different rock massifs in the form of modulation of background...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2009, October 29–31, 2009
Paper Number: ISRM-EUROCK-2009-100
... Engineering, Tuzla, Bosnia and Herzegovina ABSTRACT: Underground mining requires preliminary knowledge of influence of disturbed rock massif equilibrium to the underground working face as well as to the ground surface. This fact poses requirement for determination of prognostic parameters values that describe...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2009, October 29–31, 2009
Paper Number: ISRM-EUROCK-2009-095
... be presented in the fol- lowing form: F F F F Fsum k r m s= + + + (1) where Fk = resistance of material force on tooth during the most frequent cutting, Fr = friction force on contact surfaces of rock massif and cut- ting organ, Fm = resistance of fragmented mate- rial within the bucket and Fs...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2009, October 29–31, 2009
Paper Number: ISRM-EUROCK-2009-110
... redistribution in func-tion of time was performed for the longwall mining in lignite. Emphasising of this problem is also related to complex geology of rock massif in which mining is performed. The assessment of time that longwall face may be idle, was done by using finite elements nonlinear elastic-viscous...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2005, May 18–20, 2005
Paper Number: ISRM-EUROCK-2005-006
... in the center of ceiling are approximately equal to zero, and the concentration of horizontal stresses rises from 1.1 to 1.4 under decreasing of its height from 25 m to 5 m . The calculated safety factor f = 2C cos rp + ( CTmllx + CTmin) sin rp (j max - amin was used for analysis of rock massif's failure, where...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2005, May 18–20, 2005
Paper Number: ISRM-EUROCK-2005-041
... 20% (approximately 1600 km 2 ) Reservoir Characterization rock massif karvina part consequence structural unit ostrava-karvina coalfield coal output stress field konecny metals & mining OKC roadway windup coal production Coal Mining coal seam reduction rock burst...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2005, May 18–20, 2005
Paper Number: ISRM-EUROCK-2005-062
... Upstream Oil & Gas linear element hydraulic fracturing rock massif hydrogeological process intersection flow in porous media dimension boundary condition incompatible connection matrix equation compact rock massif compatible connection Groundwater Flow requirement numerical...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2005, May 18–20, 2005
Paper Number: ISRM-EUROCK-2005-096
..., are predominant. The mechanism of such rock burst is that at a sudden failure of loaded structure unit of rock massif(usually of rigid interseam strata) a seismic event occurs which will provoke seismic waves propagating through rock massif. The stress in seismic wave front superposes the stress in rock massif...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2005, May 18–20, 2005
Paper Number: ISRM-EUROCK-2005-034
... Artificial Intelligence Simulation metals & mining Thickness Upstream Oil & Gas composition seismicity Reservoir Characterization modeling rock massif calculation boundary condition loading seismicity impact System Plaxis seismic event numerical system plaxis sedimentary...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2005, May 18–20, 2005
Paper Number: ISRM-EUROCK-2005-093
... Republic iBSTRACT: We have been engaged in the stress measurement in rock massif by the hydro fracturing method. hIs method enables measurement of stress in plane normal to the axis of borehole, when one of the principal stresses parallel to the axis is assumed. But, in complex geomechanical conditions...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2005, May 18–20, 2005
Paper Number: ISRM-EUROCK-2005-099
... reservoir geomechanics eastern part prediction Reservoir Characterization coal seam technical assessment metals & mining Upstream Oil & Gas structural geology concentration rock massif Coal Basin stress state determination OKR seam characteristic rockburst risk knowledge...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2002, November 25–27, 2002
Paper Number: ISRM-EUROCK-2002-071
... geomechanics rock massif stress state Anchor machine hall Reservoir Characterization crane rail sandstone construction work elevation massif construction aleurolite renewable energy transformer bay stability excavation underground machine hall deformation THE STABILITY OF THE ROGUN...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 96, September 2–5, 1996
Paper Number: ISRM-EUROCK-1996-101
... country, are presented. In addition, the procedure for determining (selecting) geotechnical parameters required in the corresponding calculations is given. Reservoir Characterization carbonate reservoir rock massif ground transportation underground structure correlation complex reservoir RMR...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 96, September 2–5, 1996
Paper Number: ISRM-EUROCK-1996-059
... ABSTRACT: The measurement results are reported for shear at geological heterogeneities and geopotential variations in the rock massif on Kola Peninsula. Numerical modelling of stress state change at faults due to mining in rock massif was carried out using the model of solid body...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 93, June 21–24, 1993
Paper Number: ISRM-EUROCK-1993-005
... of the rock masses and the linings being applied (Fotieva, 1974; Bulychev, 1989). According to those methods the lining and rock massif are considered to be elements of the integral deformable system. The design methods are based on the solutions of elasticity theory contact problems for an arbitrary shape...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 93, June 21–24, 1993
Paper Number: ISRM-EUROCK-1993-063
... ABSTRACT: The paper presented proposes methods for evaluating rock massif stability in constructing large underground openings. Two types of stability massif loss are discussed. First of all instability around large underground openings is conditioned by failure in some zones near the opening...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 93, June 21–24, 1993
Paper Number: ISRM-EUROCK-1993-105
... ABSTRACT: The rock massif strengthening using micro-reinforced shotcrete (MRS) with polypropylene fibers and prestressed bolts of high rigidity is presented in the paper. The results of carbonate rock complex classification and those obtained by geotechnical laboratory testing of rock samples...

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