Vinterstøping av fjellfundament
Winter Concreting of Rock FoundationsNorut Narvik, in collaboration with HeatWork and local contractors, tests and documents the efficiency of foundation construction methods in rock below 0 °C on behalf of Statnett.
Winter Concreting 2014/15
Winter concreting work started on 27 Feb 2015 with heating of the ground. Rock bolts were set on 2 Mar 2015. Follow the progression of events at http://bm180.blogspot.no/.
Participating in construction of 4 foundations: Norut Narvik, HeatWork, Prestjord Maskin, Statnett.
Temperature measurements are currently available in the following formats:
- An Excel 2007 spreadsheet with data is here (.xlsx).
This file can be opened with MS Office 2007 or later, MS Office Excel viewer, or Libre Office.
Note: An Excel (xls) file can be generated as follows: Go to www.convertfiles.com, enter http://ndat.no/vs/data/BM180_consolidated_data.xlsx in the second box ("download it from") and click "Convert".
- Raw data files are available here. The mapping file describing the measurements is here (.xml).
- Battery Voltage: 12.3 V (24 Jun 2015, 10:00)
- Air Temperature: 12.1 °C (24 Jun 2015, 10:00)
- Temperature 1 m in the Rock: 5.9 °C (24 Jun 2015, 10:00)
See also weather forecast in the region (Gratangen turiststasjon) at yr.no.
Casting Footing and Column, Scheduled for 20 and 23 Mar
Results show that the 0°C isotherm reaches 6 to 9 m depth every winter. This deep penetration is due to the annual average air temperature being close to 0°C.
Using current air temperature data from senorge.no,
Winter Concreting 2013/14
Participating in the test construction: Norut Narvik, HeatWork, A. Markussen, Betong Renovering Rehab.