Geoelectrical imaging in the interpretation of geological conditions affecting quarry operations
2010 (English)In: Bulletin of Engineering Geology and the Environment, ISSN 1435-9529, E-ISSN 1435-9537, Vol. 69, no 3, 465-486 p.Article in journal (Refereed) Published
Determination of the subsurface geology is very important for the rock quarry industry. This is primarily done by drilling and mapping of the surface geology. However in Sweden the bedrock is often completely covered by Quaternary sediments making the prediction of subsurface geology quite difficult. Incorrect prediction of the rock-mass quality can lead to economic problems for the quarry. By performing geophysical measurements a more complete understanding of the subsurface geology can be determined. This study shows that by doing 2D-parallel data sampling a 3D inversion of the dataset is possible, which greatly enhances the visualization of the subsurface. Furthermore the electrical resistivity technique together with the induced polarization method proved to be very efficient in detecting fracture frequency, identification of major fracture zones, and variations in rock-mass quality all of which can affect the aggregate quality. With this technique not only the rock-mass quality is determined but also the thickness of the overburden. Implementation of geophysics can be a valuable tool for the quarry industry, resulting in substantial economic benefits.
Place, publisher, year, edition, pages
2010. Vol. 69, no 3, 465-486 p.
Electrical resistivity imaging, Rock-mass quality, Aggregate production, Geophysical methods, Induced polarization, Normalized induced polarization
Other Environmental Engineering
IdentifiersURN: urn:nbn:se:kth:diva-9322DOI: 10.1007/s10064-010-0286-yISI: 000280257900015ScopusID: 2-s2.0-77954959771OAI: oai:DiVA.org:kth-9322DiVA: diva2:113497
QC 20101118 Uppdaterad från submitted till published (20101118). Tidigare titel: Geoelectrical imaging for interpretation of geological conditions affecting quarry operations2008-10-202008-10-202013-06-12Bibliographically approved