1. Research and Development of Micropiles in Finland
Hannu Jokiniemi
R&D Manager
Rautaruukki Oyj/Corporate R&D
Hannu Jokiniemi/Corporate R&D
05/12/2018

2. Hannu Jokiniemi/Corporate R&D
05/12/2018

3. Hannu Jokiniemi/Corporate R&D
05/12/2018

4. Hannu Jokiniemi/Corporate R&D
05/12/2018

5. Two examples of micropile related projects in PRIMA-programme
PYRAMIT
Design procedure of pile foundation systems for tower-type superstructures
Preliminary study report (in Finnish) was published in 2002
Research is done at Helsinki and Tampere Universities of Technology
STEFIN 2010
Advancing the use of steel in foundation engineering
Research is focused on light houses with ventilated crawling space
Preliminary study report (in Finnish) was published in 2000
Research is done Tampere University of Technology and National Research Centre of Finland (corrosion)
Hannu Jokiniemi/Corporate R&D
05/12/2018

6. Hannu Jokiniemi/Corporate R&D
05/12/2018

7. Hannu Jokiniemi/Corporate R&D
05/12/2018

8. Hannu Jokiniemi/Corporate R&D
05/12/2018

9. Hannu Jokiniemi/Corporate R&D
05/12/2018

10. VENTILATED MICROPILE FOUNDATIONS
Founded on micropiles
Piles cut off above the ground level
Base floor supported directly on the piles
Fully ventilated crawl space
No separate footings
No frost insulation
No underdrains
Very fast installation
Installation possible in all kinds of soil
Hannu Jokiniemi/Corporate R&D
05/12/2018

11. A ROW HOUSE FOUNDATION IN VIIKKI, HELSINKI
68 steel pipe piles ø115 mm / ø75 mm
Framework from hollow section steel profiles
Framework joints by bolts
Framework prefabricated in workshop
Framework zinc coated
Foundation installation in 3…5 days
Hannu Jokiniemi/Corporate R&D
05/12/2018

12. Hannu Jokiniemi/Corporate R&D
05/12/2018