0. Part 00 EE, Extreme engineering. 2010.02.15 - part 2 slide show
0. Part 00 EE, Extreme engineering. 2010.02.15 - part 1 slide show
1. Extreme engineering
– part 1
IX-2009
(Part 00 EE, PP 2007, animation+p/r : 2010.02.15)
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1
Copyright notice
Unauthorised copying of this presentation as
whole or in parts in any form or by any means,
electronic, photocopying, recording
or otherwise, without prior written permision
is prohibited.
2. • NAJDER engineering® is a consulting company as well as a specialist
contractor within civil and foundation engineering.
• We are preparing technical concepts, design projects, analyses and performing
jobs as a subcontractor.
• Tomasz Najder joined in the period of 1974-1976 Skånska Cementgjuteriet
(today Skanska AB) as a member of Supervising Team on the project “Second
Dry Dock in Gdynia Shipyard”.
• 1983-2002 Tomasz Najder gained his experiences in Stabilator AB (daughter
company in Skanska Group) as site manager, project manager and internal
consultant (”trouble-shooter”), 1990-1995 as Production Manager (Stabilator
AB- International Division in Poland),1995-2001 in Polish-Swedish company
Stabilator Sp. z o.o. (Skanska Group) as Vice President and Executive Manager.
• Anna Elżbieta Najder (wife) owned 1991-2002 Polish company Polibeton Sp. o.o.
and now Swedish Najder engineering® since 1997 (until 2005 operating as
Polimark International) – operating globally.
• Anna Monika Najder (daughter) together with Tomasz Najder (as the President
of the Board and Executive Manager) owned 2002-2009 Polish Najder
engineering® operating in Poland.
• Family Najder is working within mining, tunneling and civil engineering since
six generations.
Family and company history in civil engineering
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3. 33
Tomasz Najder Ph.D Civ. Eng.
Born 1951 in Gdańsk (Danzig) in Poland.
1974 M.Sc. Civ. Eng. at Technical University in Gdańsk / Poland.
1980 Doctors thesis within geotechnical engineering at Technical University in Gdańsk.
Since 1982 in Sweden.
Employed in Skanska 1983-2002 as Site Manager, Contract Manager, Internal Consultant (”trouble-shooter”).
1995-2001 Vice President- Executive Manager of Stabilator Poland.
Since 2002 Senior Consultant within family company Najder Engineering® in Stockholm.
Last tunnelling activities:
1993-1994 in Skanska AB /Stabilator AB as Grouting Expert for Breiđalsheiđi and Botnsheiđi Road Project in Ísafjörður on
Iceland - 9km D&B.
2006-2008 Senior Grouting Engineer for VIJV Clients Site representative for Kárahnjúkar Hydroelectric Project on Iceland
(representative for SWECO International AB) - 72km D&B, TBM.
2007-2009 Senior Grouting Consultant for Metrostav a.s., á útlibú á Islandi at Héðinsfjarðargöng Project Iceland - 11km
D&B.
2008-2009 Senior Grouting Consultant for Norconsult SA in Greater Istanbul Water Supply Project Stage II Melen System
– 3.5 km TBM.
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4. 44
• Foundation engineering and soil investigations.
• Reinforcement of existing foundations (underpinning) of
industrial buildings, housing estates and ancient monuments
(piling, anchors, injections).
• Rock stability and soil improvement (deep mixing method,
high/low-pressure injection, lime-cement columns).
• Stabilization of slopes and embankments (geogrids, soil
reinforcement, drainage, geotextiles).
• Sealing of existing embankments, dams, dikes and waste
deposits. Flood defense.
• Biological engineering, gabion constructions.
• Leakage and moisture counteraction (insulations, drainages,
sealing injections, dilatation repair) in concrete and brickworks
structures.
Field of activity
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5. 55
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TNA systems for micropiling and anchoring
- probably the most strongest solution in the world (?)
6. ready
6
Micropile TNA Ø= 0.20 m
- drilled version.
Ultimate bearing capacity ca. 120 ton
TNA micropiles inside the cellar of the castle
The Malbork Castle in Poland – build in XII century as Marienburg Schloss,
- the largest brick construction in the world
7. Slope instability just after disaster
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Slope stabilization close to Gniew Castle (Poland)
Slope stabilisation with TITAN ground anchors and micropiles
- the example of complicated slope protection
9. coast line ~ year 1500
~ 1800 m
1998
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Slope stabilization of the Trzęsacz church ruin (Poland) at the Baltic See coast
- probably the most sofisticated coast- and slope protection in the world (?)
1870
15. 1515
Location of the projects on Iceland
Breiđalsheiđi and Botnsheiđi Project 1993-1994; the huge inflow
Kárahnjúkar Hydropower Project 2006-2008; the longest tunnel system in the world
- performed in probably most dangerous and complicated rock conditions in tunneling history
Héðinsfjarðargöng Project 2007-2009; the huge inflow
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16. 16
Ísafjörður - Iceland
The tunnels of Breiđalsheiđi and Botnsheiđi
Breiđaldalur tunnel shortly after huge water inflow
Water inflow ~ 1-2m3/sec
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Water pressure ~ approx. 60 bars
Water inflow ~ 50 l/sec/hole
Water temperature ca. +20ºC
Inserting of mechanical packers in high water pressure conditions
Face after final grouting
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18. 18
• Diversion Tunnels at dam 2.4 km (Kar 14)
• Headrace Tunnel 53.0 km (Kar 14)
• Grouting galleries at dam 0.5 km (Kar 14)
• Cable tunnel 1.0 km
• Hraun Diversion 2.0 km
• Grjótá Diversion 1.75 km
• Adit 1 1.4 km (Kar 14)
• Adit 2 2.7 km (Kar 14)
• Adit 3 2.8 km (Kar 14)
• Surge Tunnel 1.7 km (Kar 14)
• Drainage Tunnel 0.7 km (Kar 14)
• Penstocks 0.82 km (2x)
• Access to Powerhouse 1.0 km
• Tailrace Tunnel 1.3 km
Total Tunnel Length: 73.0 km (D&B=10 km, TBM=63 km)
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18Kárahnjúkar Hydropower Project 2006-2008
