Description: Das Projekt "Instruments for the sustainable management of active and ancient salt mining areas" wird/wurde gefördert durch: Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung. Es wird/wurde ausgeführt durch: Universität Basel, Geologisch-Paläontologisches Institut.The aims of the 3-year Swiss-Romanian project are to develop tools that allow the representation and efficient use of 3D geological and hydrogeological information in active or abandoned salt mining areas. The tools will form the basis for process models that are able to evaluate different scenarios to face problems related to land subsidence and aquifer contamination, and to develop sustainable development strategies for mining areas. The Ocna Mures mining area in Transylvania, which is continuously facing environmental problems such as surface collapse, land subsidence, and surface water and aquifer contamination from brines, is ideally suited to serve as an example for our approach. The rock salt of the salt mines has been explored since the Roman ages in open excavations and galleries until the 1970ies, and is still extracted up to this date within solution mining wells. A comprehensive database of the subsurface structure of sediments and exploration cavities, their geo-mechanical and geo-hydraulic properties, and hydraulic boundary conditions are prerequisite to develop innovative concepts for water resource protection and to manage landscapes in ancient salt mining areas. Our conceptual approach includes the following tasks: 1. To develop an adaptive data-management system: the Geodata-System will incorporate the different geological, geophysical, hydrogeological, hydrochemical and geotechnical information. The GIS-based system will provide the necessary data for modeling and scenario development, will assist the visualization of results, will evaluate hazard areas and will, therefore help to find strategies for future development of surface and subsurface resource. 2. To collect geophysical and hydrogeological data in the Ocna Mures mining perimeter: geoelectrical resistivity surveys at the scale of the mining field will be performed to identify the morphology of the salt-sterile contact and the underground voids up to a depth of about 30 m. The presence of voids is to be verified through the analysis of existing survey drills. 10 observation wells will be tested by experimental pumping tests to derive geohydraulic parameters of the aquifer. Water samples will be taken for hydro-chemical analyses from the wells and the surface waters of the River Mures and the saline lakes. 3. To develop a geological 3D model of the mining area: the regional 3D model includes all relevant available geological horizons in the area and can be refined to local geological 3D models covering the planning scale of subprojects. The geological models can be transformed to coupled 3D groundwater flow and transport models, as well as to geomechanical models to investigate specific processes. 4. (...)
SupportProgram
Origin: /Bund/UBA/UFORDAT
Tags: Mur ? Seen ? Salzbelastung ? Fluss ? Rumänien ? Umweltauswirkung ? Schweiz ? Grundwassergefährdung ? Morphologie ? Steinsalz ? Salz ? Ingenieurgeologie ? Szenario ? Salzgestein ? Hydrogeologie ? Kolloid ? Lagerstättenerkundung ? Salzbergbau ? Übriger Bergbau ? Bergwerk ? Bodensenkung ? Bergbaugebiet ? Untertagebau ? Geoelektrik ? Geotechnik ? Daten ? Verkehrsmodell ? Risikoanalyse ? Grundwasserleiter ? Simulation ? Geologie ? Internationale Zusammenarbeit ? Sediment ? Grundwasserströmung ? Hydrochemie ? Geophysik ? Stadt ? Grundwasser ? Bergbaufolgelandschaft ? Höhle ? Landschaftsstruktur ? Modellierung ? Geodäsie ? Oberflächengewässer ? Untergrund ? Regionalmodell ? Nachhaltigkeitsstrategie ? Leckage ? Ressource ? Nachhaltige Bewirtschaftung ? Urbaner Raum ? Datenbank ? Wasserressourcen ? Soziale Aspekte ? Geologisches Modell ? Ressourcenschutz ? Gebiet ? Gefahr ? See [Binnengewässer] ? Pumpversuch ? Hochschule ? Untergrund [Boden] ? Visualisierung [Umweltinformation] ? Werkzeug ? surface and ground water contamination ?
License: cc-by-nc-nd/4.0
Language: Englisch/English
Time ranges: 2013-01-01 - 2015-12-31
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