Introduction to the Mining Theme

Transcription

1 Introduction to the Mining Theme Terrafirma User Workshop Mining March 21 st / 22 nd, 2011 Page 1

2 Surface Movements Surface Movements in Europe, in particular in Germany are related to Underground mining activities (coal, salt, potash) Open pit mining activities (mainly groundwater pumping) Gas storage caverns Deep geothermal energy projects CCS projects (in future) Natural sinking gp processes (salt or potash leaching, karst cavities, unstable ground) Water catchment Construction activities (e.g. tunnelling) Slope instabilities Earthquakes Volcanos others Page 2

3 Surface movements have awareness in German public due to spectacular events Collapse of Cologne Archives building on March 3 rd, 2009 Collapse of an abandoned mine slope while flooding on July 18 th, 2009 Page 3

4 Examples for Surface Movements Crack and step formation due to underground coal mining Page 4

5 Examples for Surface Movements Collapse of an abandoned mine shaft (Wattenscheider Loch) Page 5

6 Examples for Surface Movements Development of wetlands by changes in ground water table Page 6

7 Examples for Surface Movements Collapse as consequence of leaching process above salt caverns Page 7

8 Examples for Surface Movements Collapse due to karst cavities Page 8

9 German Regulations Mining (similar in other European countries) Federal States Mining Authorities are responsible for any mining permission by German Mining Law Collateral clauses are ruling the mandatory surface monitoring in each single case considering the statutory regulations about mine surveying (especially accuracy classes) Mining companies have to present an adequate monitoring concept to fulfill these regulations Responsible mine surveying experts of the Mining Authorities have to evaluate the monitoring i concept for permission i Permission must be court-proof in case of any legal dispute Implementation of new, innovative monitoring methods requires a serious process of achieving the needed legal acceptance Page 9

10 Acceptance Process for Radarinterferometry in Germany - Status Valid German Mining Law makes it difficult for Mine Surveying Inspectors to accept monitoring concepts with radarinterferometry Description of accuracy is not possible as requested by law Evidence of accuracy, reliability and repeatability of results is required However, due to serious events some State Mining Authorities starts with first projects using radarinterferometry with in last 12 months e.g. Mining Authority of Nordrhein-Westfalen is project partner in TERRAFIRMA German Mine Surveyors Association is starting an initiative on development of Guidelines for the use of radarinterferometry for monitoring purposes in mining Ad-hoc working group (Head: N. Benecke) will start on March 22 nd, 2011 Similar guidelines are successfully in use for GNSS and laser scanning German/European Mining Authorities and Mining Industry is interested in dialogue with TERRAFIRMA about requirements and future operational services (GMES core services and specific project services) Page 10

11 Terrafirma Case Studies Mining Time Presentation Author Organisation Monday Session 2: Case Studies Mining, Part 1 16:20 Introduction to the Mining Theme Norbert Benecke DMT 16:50 Inactive/Abandoned Mines Ruhr The users perspective Heinz-Roland Neumann Bezirksregierung Arnsberg 17:20 Inactive/Abandoned Mines Ruhr Karsten Zimmermann DMT Tuesday Session 3: Case Studies Mining, Part 2 09:00 Stoke-on Trent Luke Bateson BGS 09:30 Gas Storage Berlin Friedrich Kühn BGR 10:00 Application of the Satellite Interferometry in the Upper Silesian Mining Basin Marek Graniczny, Zbigniew Kowalski PGI Page 11

12 Future of Terrafirma Geo-Hazard Information Services Session 4: The Future of the Terrafirma Geo-Hazard Information Services 11:15 Radarinterferometry and PostMining Database at the German Volker Spreckels RAG Deutsche Steinkohle Hardcoal Mining Company RAG AG 11:45 German Mining Law and use of radarinterferometry in mining Joachim Deutschmann Deutscher Markscheider Verein (DMV) 12:15 User requirements in Germany Jens Riecken Ministry of the Interior and a)the view in the German surveying administrations b)special needs and tasks in North-Rhine Westphalia Stephan Heitmann Local Affairs NRW 12:45 The future of Terrafirma - Wide Area Product Graint Cooksley / Nico Adam Altamira / DLR 13:15 Discussion and Conclusions Day 2 All participants (Chairman: N. Benecke) Page 12

13 Thank you for your attention! Glückauf Page 13