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Modelling and visualisation of geological structures in the Tunberget tunnele
KTH, School of Architecture and the Built Environment (ABE), Urban Planning and Environment, Geodesy and Satellite Positioning.
2008 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The 3-d visualisation of a section of the Tunberget tunnel and important fracture zones

was accomplished by combination of the topographic surface, measurements at the

surface of fracture planes together with surfaces of dolerite dykes, results from magnetic

modeling of dolerite dykes and tunnel mapping data.

The topographic surface was represented as elevation contours with 1 m equidistance.

The fracture and dolerite surfaces were measured geodetically in the field from a net of

20 total station locations. Each surface was measured at 3 points to determine its strike

and dip. Totally 44 strike and dip estimates were obtained. The extent at depth of the

dolerite dykes was also estimated based on magnetic measurements along 3 profiles. The

location of the dykes was also known from geological tunnel mapping.

ArcGIS and RockWorks have been used to process the data and to generate a 3-d

visualization of the geometrical relation between targeted geological structures, the

dolerite dykes and the tunnel. The area is of interest to be studied in more detail as the

fracture zones and the parallel dolerite dykes connect the tunnel with a large wetland

complex.

Place, publisher, year, edition, pages
2008.
Series
TRITA-GIT EX ; 08-03
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-199685OAI: oai:DiVA.org:kth-199685DiVA, id: diva2:1065027
Supervisors
Available from: 2017-01-19 Created: 2017-01-13 Last updated: 2017-01-19Bibliographically approved

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CiteExportLink to record
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Citation style
  • apa
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