Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Environmental evaluation of mining systems
The close vicinity of mining companies to areas given over to other uses, such as residential areas or nature reserves, have triggered a negative attitude of the population towards rock mining companies. Demands for the use of environmentally-friendly mining techniques are increasingly voiced and reference is made to extraction techniques without the use of explosives in this connection. Based on the definition of what an environmentally-friendly mining technique is supposed to be, the paper presents a methodology that contains technical/technological, economic/commercial and ecological investigations into different mining techniques. When assessing a mining technique in accordance with its environmental friendliness, the analysis should also take social factors into account, apart from economic/commercial and environmental ones. If necessary, these aspects should be differently weighted within the overall assessment and looked at in their entirety. This relationship requires further investigations into and analyses of the rock mining sector. With the help of the described methodology, six mining techniques in addition to drilling and blasting have been examined with regard to their production costs and the environmental effects, caused by SO2, CO2, the cumulative energy input, noise, vibration and dust, in which case a model of a deposit in a fissured rock formation with a compressive strength of 20 MPa was used. The results were then assessed in the light of two fundamentally different cases, one being an open-cast mine close to sensible objects, say a town or a village, and the second one being a remote open-cast mine. The local and regional/global environmental effects have been weighted in both cases. As a result of the analyses, the most cost-effective and most environmentally-friendly mining techniques close to and far away from a residential area as well as the most environmentally-friendly mining technique have been established for the two assessment cases by also taking the production costs into account. Vertical ripping, drilling and blasting as well as cutting proved to be the most cost-effective mining techniques and also the most environmentally-friendly ones.
Environmental evaluation of mining systems
The close vicinity of mining companies to areas given over to other uses, such as residential areas or nature reserves, have triggered a negative attitude of the population towards rock mining companies. Demands for the use of environmentally-friendly mining techniques are increasingly voiced and reference is made to extraction techniques without the use of explosives in this connection. Based on the definition of what an environmentally-friendly mining technique is supposed to be, the paper presents a methodology that contains technical/technological, economic/commercial and ecological investigations into different mining techniques. When assessing a mining technique in accordance with its environmental friendliness, the analysis should also take social factors into account, apart from economic/commercial and environmental ones. If necessary, these aspects should be differently weighted within the overall assessment and looked at in their entirety. This relationship requires further investigations into and analyses of the rock mining sector. With the help of the described methodology, six mining techniques in addition to drilling and blasting have been examined with regard to their production costs and the environmental effects, caused by SO2, CO2, the cumulative energy input, noise, vibration and dust, in which case a model of a deposit in a fissured rock formation with a compressive strength of 20 MPa was used. The results were then assessed in the light of two fundamentally different cases, one being an open-cast mine close to sensible objects, say a town or a village, and the second one being a remote open-cast mine. The local and regional/global environmental effects have been weighted in both cases. As a result of the analyses, the most cost-effective and most environmentally-friendly mining techniques close to and far away from a residential area as well as the most environmentally-friendly mining technique have been established for the two assessment cases by also taking the production costs into account. Vertical ripping, drilling and blasting as well as cutting proved to be the most cost-effective mining techniques and also the most environmentally-friendly ones.
Environmental evaluation of mining systems
Umweltbewertung von Bergbausystemen
Drebenstedt, C. (Autor:in) / Schmieder, P. (Autor:in)
2005
20 Seiten, 7 Bilder, 3 Tabellen, 10 Quellen
Aufsatz (Konferenz)
Englisch
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