|
|
Cable bolts utilization in thick seam mining
Kukutsch, Radovan ; Šňupárek, Richard ; Waclawik, Petr
On the basis of different field and laboratory studies, a mining method called „cable bolting based thick seam depillaring“ has been developed CSIR-CIMFR to meet the technical challenges arising during underground extraction of a thick coal seam of India. This method is based on two simple principles of rock-mass reinforcement: (a) improvement in strength of the reinforcement with increase in the confinement and (b) dilution in strength of the reinforcement under tensile condition of the host rock mass. This method is being used by a number of Indian coal mines for depillaring of total thickness (up to 7.5 m) of a thick coal seam (developed along the floor horizon) in single lift. This paper presents application of the method at Madhusudanpur 7 Pit and Incline mine.
Fulltext: content.csg -  PDF
Plný tet: UGN_0437503 - PDF
|
|
| |
|
|
Methodical instructions for secure stability of mine roadways in great depth
Koníček, Petr ; Šňupárek, Richard ; Konečný, Petr ; Ptáček, Jiří ; Kukutsch, Radovan ; Kajzar, Vlastimil ; Waclawik, Petr ; Souček, Kamil ; Staš, Lubomír ; Hortvík, Karel ; Konečný, Pavel
Methodology provides instructions for safe and economic design of roadways for mining and mining design companies in conditions of the Czech part of the Upper Silesian Coal Basin. Methodology covers area of all used roadway support as a steel arch support, rock bolt and cable bolt support as well as methods of grouting for stability and reinforcement of roadways.
|
|
| |
|
|
Modifikace projektu monitoringu napěťodeformačního stavu horninového masivu při dobývání sloje 30 (634) v rámci zkušebního provozu dobývací metody chodba - pilíř v OPJ Dolu ČSM - Sever - Modifikovaný návrh ověření možnosti použití metod protiotřesové prognózy a prevence při použití dobývací metody chodba- pilíř v rámci zkušebního provozu ve sloji 30 (634) v OPJ Dolu ČSM - Sevwer
Waclawik, Petr ; Koníček, Petr ; Ptáček, Jiří ; Šňupárek, Richard ; Kajzar, Vlastimil ; Kukutsch, Radovan ; Vavro, Martin ; Souček, Kamil ; Holečko, J. ; Stoniš, M. ; Suchanek, E. ; Sojka, R. ; Przeczek, A.
Jedná se o projekt monitoringu napěťodeformačního stavu horninového masivu při dobývání sleje č. 30 (364) v rámci zkušebního provozu nové metody chodba - pilíř v ochranném pilíři jam Dolu ČSM, lokalita Sever.
|
|
| |
|
|
Project monitoring the stress-strain state of the rock mass during extraction of coal seam 30 (634) within the test run mining methods corridor - a pillar in the OPJ Mine CSM - Sever. Proposal verify the possibility to use anti-shake prognosis and prevention using mining methods corridor - pillar within pilot operation in seam 30 (634) in OPJ Mine CSM - Sever
Waclawik, Petr ; Koníček, Petr ; Ptáček, Jiří ; Šňupárek, Richard ; Kajzar, Vlastimil ; Kukutsch, Radovan ; Vavro, Martin ; Souček, Kamil ; Holečko, J. ; Stoniš, M. ; Suchanek, E. ; Sojka, R. ; Przeczek, A.
On the basis of a contract for No. 850/33/10 and Appendix 1 of this contract , between OKD , as, ČSM and the Institute of Geonics AS CR, v.v.i. we present the following project monitoring stress tension-deformation condition of the rock mass during extraction of coal seam No.30 (634 ) within the test run mining methods corridor - pillar in a protective pillars jam CSM Mine, north location. Monitoring of the stress tension-deformation state of rock mass is a prerequisite for successful verification of a new mining method unapproved hall - pillar and its further use in the Czech part of the Upper Silesian Coal Basin. This mining method is designed on the basis of experiences and practices, which are verified in different natural conditions and depths, and therefore it is necessary for the verification of the conditions of the Czech part of the Upper Silesian Basin on the basis of the proposed geotechnical monitoring. Test operation of the new hall - pillar method will be implemented in the seam No.30 (634 ) in the rock mass included in the category without the risk of shocks.
|
|
|
Progress report on the project VIII/2013 Quality Assessment HM and geotechnical exploration plan for the construction of underground gas storage Milasín-beech - List of works on the project and an evaluation of the results for the third quarter of 2013
Souček, Kamil ; Koníček, Petr ; Vavro, Martin ; Staš, Lubomír ; Ptáček, Jiří ; Vavro, Leona ; Waclawik, Petr ; Georgiovská, Lucie ; Patočka, M.
Based on Contract No. G1042011 with the client fy DIAMO state enterprise Stráž, branch GEAM Lower Rožínka was prepared this interim report, which summarizes the list of works, presents and assesses the findings and results for the period July to September 2013, concerning the evaluation of rock mass quality and geotechnical survey was intended to build an underground gas storage facility.
|
|
|
Progress report on the project VI/2013 Quality Assessment HM and geotechnical exploration plan for the construction of underground gas storage Milasín - Bukov - List of works on the project and an evaluation of the results for the first quarter of 2013
Souček, Kamil ; Koníček, Petr ; Vavro, Martin ; Staš, Lubomír ; Ptáček, Jiří ; Vavro, Leona ; Waclawik, Petr ; Georgiovská, Lucie ; Patočka, M.
Based on Contract No. G1042011 with the client fy DIAMO state enterprise Stráž, branch GEAM Lower Rožínka was prepared this interim report, which summarizes the list of works, presents and assesses the findings and results for the period January-March 2013, concerning the evaluation of rock mass quality and geotechnical survey was intended to build an underground gas storage facility.
|
|
|
Progress report on the project VII/2013 Quality Assessment HM and geotechnical survey for construction of an underground gas storage Milasín - Bukov - List of works on the project and the achieved results for the second quarter of 2013
Souček, Kamil ; Koníček, Petr ; Vavro, Martin ; Staš, Lubomír ; Ptáček, Jiří ; Vavro, Leona ; Waclawik, Petr ; Georgiovská, Lucie ; Patočka, M.
Based on Contract No. G1042011 with the client fy DIAMO state enterprise Stráž, branch GEAM Lower Rožínka was prepared this interim report, which summarizes the list of works, presents and assesses the findings and results for the period April-June 2013, on the evaluation of rock mass quality and geotechnical survey was intended to build an underground gas storage facility.
|
guest ::
RSS feed.