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Keywords: extraction
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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-2017-009
... in the area of about 122 km 2 of active mines and a complex slide/overlap fault system. The fact that the extraction of coal by this method is realised at a depth around 900 m below the surface has also made it one of the deepest Room and Pillar mining sites in the world. These facts brought lead to...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-106
... than 3D laser scanning, is becoming mainstream within the research community. This paper examines the generation of 3D point clouds of a rock slope obtained from both, 3D laser scanning and SfM techniques, and their application to the extraction of the orientations of the main discontinuity sets. To...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-040
... it can be somehow limited extraction using longwall face. This method is respectful of the overburden and excavated areas stay stable. The paper deals with the issue of stability and stabilization of coal pillars by using rockbolt support. The problem with this method is currently designing pillars...
Proceedings Papers

Paper presented at the ISRM European Rock Mechanics Symposium - EUROCK 2017, June 20–22, 2017
Paper Number: ISRM-EUROCK-2017-002
... modelling studies. The ultimate aim of this study is to achieve safer stoping environment with an increase in stope interval from 30 to 45 m to enhance production and productivity with safety. reservoir geomechanics Upstream Oil & Gas extraction stability Reservoir Characterization...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-071
... metals & mining strength failure criterion geometry Upstream Oil & Gas criteria rock mass reservoir geomechanics criterion extraction open stope pillar Reservoir Characterization stope crown pillar rock mass behavior excavation Hoek stress state georgieva crown pillar...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-083
... ABSTRACT: Excavation for underground spaces (especially copper mines), requires accurate identification of the ground condition. One of the problems that can arise due to the extraction of underground resources is land subsidence that can affect mining activities both technically and...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2016, August 29–31, 2016
Paper Number: ISRM-EUROCK-2016-150
..., Kharagpur, West Bengal, India R. Shrimali Hindustan Copper Limited, Malanjkhand, Madhya Pradesh, India ABSTRACT: An underground copper ore deposit below an open pit mine is to be extracted using large diameter blast hole (LDBH) method. This paper is focused on static and dynamic responses of LDBH stopes of...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-109
... achieved by studying seismic events during extraction of two seams in the study Mine 1 using both side-by-side and panel-barrier designs. Based on similar simulations for geologic conditions of the study Mine 2 and available measurements in the study mines in Utah, the model shows a low degree of...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-063
... source of information for the detection of tectonic structures. In this paper, the authors present a new approach for semi-automatic extraction and characterization of geological lineaments. The overall positive aspects of this semi-automatic process were found to be the rapidity of preliminary...
Proceedings Papers

Paper presented at the ISRM Regional Symposium - EUROCK 2014, May 27–29, 2014
Paper Number: ISRM-EUROCK-2014-095
... Abstract In India most of the coal mines are developed by bord and pillar method. In many of the mines the extraction of pillars are being restricted due to its surface constraints. A considerable amount coal is left in pillars due to this reason. This paper deals with the application of...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2013, October 23–26, 2013
Paper Number: ISRM-EUROCK-2013-119
... angle of friction decreases, while the shear stiffness and dilation angle of the fault do not exert a severe influence on the behaviour of the fault. It is also shown that significantly high shear rupture velocity could be induced by extracting the orebody parallel to the fault. 1 Introduction Fault...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2013, October 23–26, 2013
Paper Number: ISRM-EUROCK-2013-114
... Abstract In this article, the authors present the outcomes of their studies on the dynamic characteristics of ground and amplification of ground motions above abandoned mines and discuss their implications. In addition to the effects of some parameters associated with extraction, some...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2013, October 23–26, 2013
Paper Number: ISRM-EUROCK-2013-087
... geotechnical features assessment 3. stability evaluation by numerical models 4. Risk scenarios development. The case study will show difficulties arising during the analysis of an abandoned mine and how is possible to overcome them. metals & mining Simulation extraction subsidence...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2012, May 28–30, 2012
Paper Number: ISRM-EUROCK-2012-079
... Abstract: This paper describes the findings of a numerical modelling based case study to assess the feasibility for extraction of pillars with controlled subsidence of the sur-face in Mahuda Top seam III at Murlidih Bord and pillar mine under Jharia coalfield India. Controlled subsidence on...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2005, May 18–20, 2005
Paper Number: ISRM-EUROCK-2005-006
... ABSTRACT Numerical simulation is performed for the changes of stress field at consecutive extraction of a diamond ore deposit, The features of stress distribution around openings are examined. Failure zones of rock mass are determined With using of Coulomb-Mohr criterion. The results of...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 2005, May 18–20, 2005
Paper Number: ISRM-EUROCK-2005-032
... discontinuities. The inundation of these space formations that were drained off in the course of extraction from technological reasons, changes stress-deformation conditions in rock mass that were in the balanced state until this time. In fact, due to the influence of lifting force in the water on rock mass, the...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 96, September 2–5, 1996
Paper Number: ISRM-EUROCK-1996-076
... footwall sketch hangingwall central section mining sidewall empirical design technique long term stability Orebody strength extraction remainder crosscut Upstream Oil & Gas shear zone convergence sequence new strategy Eurock '96, Barla (ed.) (0 1996 Balkema, Rotterdam...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 96, September 2–5, 1996
Paper Number: ISRM-EUROCK-1996-132
... ABSTRACT: This paper describes a numerical modelling exercise carried out for a massive tabular orebody mine. Mining to date has taken place by means of room and pillar mining, with the recent introduction of backfill and pillar extraction. To access extensions to the orebody, mining has to...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 96, September 2–5, 1996
Paper Number: ISRM-EUROCK-1996-149
... performance. The first experience was a failed attempt at shortening the time required to move a longwall face installation. The second experience was the successful attempt to extract coal under very difficult conditions. 2. GEOLOGY The mining depth varied from 60 m to 160 m below surface and the average...
Proceedings Papers

Paper presented at the ISRM International Symposium - EUROCK 96, September 2–5, 1996
Paper Number: ISRM-EUROCK-1996-159
... analysed the data by statistical methods and obtained a predictive formula for coal pillar strengths. metals & mining tilt colliery Salamon strength bord knowledge management pipeline safety factor South Africa Pillar Working subsidence pillar extraction investigation vaal basin...

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