Use of electrical imaging in site investigations for a railway tunnel through the Hallandsås Horst, Sweden
(1999) In Quarterly Journal of Engineering Geology and Hydrogeology 32(2). p.163-173- Abstract
- Investigations over two major tectonic zones in the Hallandsås Horst, Southern Sweden were carried out in connection with a railway tunnelling project. A combination of resistivity imaging, core drilling and geophysical logging was found to provide a good overview of the variation in rock quality and detailed information on the engineering geological characteristics and genesis of the strata. Resistivity data, acquired along parallel lines over the zones using multi-electrode equipment, were processed by means of automatic inversion software to generate sections showing the variation of resistivity with depth. Wireline core drilling at selected points gave an almost complete core recovery, which revealed major sedimentary sequences and... (More)
- Investigations over two major tectonic zones in the Hallandsås Horst, Southern Sweden were carried out in connection with a railway tunnelling project. A combination of resistivity imaging, core drilling and geophysical logging was found to provide a good overview of the variation in rock quality and detailed information on the engineering geological characteristics and genesis of the strata. Resistivity data, acquired along parallel lines over the zones using multi-electrode equipment, were processed by means of automatic inversion software to generate sections showing the variation of resistivity with depth. Wireline core drilling at selected points gave an almost complete core recovery, which revealed major sedimentary sequences and heavily weathered crystalline rocks that were previously unknown or only partially known despite conventional core drilling and percussion drilling. Geophysical borehole logging confirms the resistivity imaging results, and would be a particularly valuable complement to core logging in cases where significant core loss occurs. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2344575
- author
- Dahlin, Torleif LU ; Bjelm, Leif LU and Svensson, Conny LU
- organization
- publishing date
- 1999
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- drilling, geophysics, site investigation: resistivity, tunnels
- in
- Quarterly Journal of Engineering Geology and Hydrogeology
- volume
- 32
- issue
- 2
- pages
- 163 - 173
- publisher
- Geological Society of London
- external identifiers
-
- scopus:0033494750
- ISSN
- 1470-9236
- DOI
- 10.1144/GSL.QJEG.1999.032.P2.06
- language
- English
- LU publication?
- yes
- id
- 7cd88043-6c77-4ea8-b914-88535f128438 (old id 2344575)
- date added to LUP
- 2016-04-04 13:27:31
- date last changed
- 2022-03-31 20:50:10
@article{7cd88043-6c77-4ea8-b914-88535f128438, abstract = {{Investigations over two major tectonic zones in the Hallandsås Horst, Southern Sweden were carried out in connection with a railway tunnelling project. A combination of resistivity imaging, core drilling and geophysical logging was found to provide a good overview of the variation in rock quality and detailed information on the engineering geological characteristics and genesis of the strata. Resistivity data, acquired along parallel lines over the zones using multi-electrode equipment, were processed by means of automatic inversion software to generate sections showing the variation of resistivity with depth. Wireline core drilling at selected points gave an almost complete core recovery, which revealed major sedimentary sequences and heavily weathered crystalline rocks that were previously unknown or only partially known despite conventional core drilling and percussion drilling. Geophysical borehole logging confirms the resistivity imaging results, and would be a particularly valuable complement to core logging in cases where significant core loss occurs.}}, author = {{Dahlin, Torleif and Bjelm, Leif and Svensson, Conny}}, issn = {{1470-9236}}, keywords = {{drilling; geophysics; site investigation: resistivity; tunnels}}, language = {{eng}}, number = {{2}}, pages = {{163--173}}, publisher = {{Geological Society of London}}, series = {{Quarterly Journal of Engineering Geology and Hydrogeology}}, title = {{Use of electrical imaging in site investigations for a railway tunnel through the Hallandsås Horst, Sweden}}, url = {{https://lup.lub.lu.se/search/files/6124724/4064854.pdf}}, doi = {{10.1144/GSL.QJEG.1999.032.P2.06}}, volume = {{32}}, year = {{1999}}, }