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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.
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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.
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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.
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Stress - one of the most important mining influenced factors
Waclawik, P. ; Ptáček, Jiří
Stress is one of the basic factors affecting rock massif behaviour by decisive way. Knowledge of stress fields facilitates projection and successful realization of workings (e.g. stability check of workings, behaviour of proposed supports, spatiotemporal situation of workings). Within the scope of sedimentary deposit of Karvina subbasin were used data from structure-tectonic analysis and from measures in situ by overcoring and hydrofrac methods for determination of natural stress state and its orientation. This report deals with contemporary recognition of stress fields in the eastern part of Karvina subbasin. There are also disscussed problems of long working line depending on orientation and size of horizontal stress in this report. Last but not least there is described new knowledge about geological-tectonic structure of Karvina subbasin.
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Verification of Recent-Stress-Strain in Czech part of Upper Silesian Coal basin
Ptáček, Jiří ; Grygar, R. ; Koníček, Petr ; Souček, Kamil ; Staš, Lubomír ; Waclawik, P.
A stresss strain model of Variscan structural tectonic pattern in the Czech part of Upper Silesian Coal Basin (USCB) based on paleostress analyse have been interpreted. It was compiled used many of tectonic measurements of planar and linear elements and their comparison with the knowledge of dynamic development of Variscan body in a larger framework of Moravo Silesian zone. It was took account the influence of Alpine deformation due to Carpathian nappe. There were more stress tensor gauging realised in the region above all using hydrofrac and treated overcoring methods during last ten years. It’s becoming apparent that for information of recent stress fields is usable the interpretation of focus mechanisms of energetic significant seismic events, which were observed here more than ten years. The aim of project is the verification of recent stress strain state in the easternmost region of Czech part of USCB.
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Measurement of Tensor Stress Changes by Conical Gauge Probe in Ostrava-Karvina Coal Basin
Staš, Lubomír ; Souček, Kamil ; Knejzlík, Jaromír ; Waclawik, P. ; Palla, L.
A device designed on base of measurement local deformations on compact conical ended borehole was used for long term monitoring of stress changes induced by closed underground human activity.The changes of stress state of rock mass impacted by progress of long-wall were investigated. This experiment demonstrated that monitored strain changes on borehole bottom are formed both by geomechanical situation based on a progress of long-wall and perhaps by local geomechanical situation based on stress redistribution after boring of measuring borehole and on plastic deformation of creeping rock material.
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