0. Part 00 EE, Extreme engineering. 2010.02.15 - part 1 slide show
CV Tomasz Najder Part 2 2009.09.17 2016
1. sid 1 av 9
Najder engineering®
Movägen 3; SE-133 36 Saltsjöbaden/Sweden
Tel: +46 8 717 5714 Fax: +46 8 717 6042 Mobil: +46 (0)704 217 012
Org. no: 490911-2148 VAT-no: SE490911214801 E-mail: tomasz.najder@hotmail.com http://najder.se/
Stockholm, 17.09.2009 (2016)
TomaszNajder (Ph.D Civ. Eng.) - Part2
Personalia Date of birth: 1951-08-30
Address: Movägen 3, SE-133 36 Saltsjöbaden (Sweden)
Tel: 0046 (8) 717 57 14, fax: 0046 (8) 717 60 42, mobile: 0046 (0)704 217 012
E-mail: tomasz.najder@hotmail.com
Legal status: married, 2 children (adults).
Experience
Since 07/2005 Najder Engineering®
Stockholm
Senior Consultant within family company.
Activities as consultant:
Examination of technical reports and proposals. Technical advisor at Malmö City Tunnel and
Botniabanan- Under Consultant for Geokonsult Stille AB:
Evaluation of soil and rock parameters versus conductivity of different types of grouts.
Study of parameters for proposed grout compositions.
Evaluations of results from laboratory testing and grouting field works.
Detailed comments concerning grouting procedures, equipment as well as own proposals for alternately
innovations.
Detailed study of results from pumping tests incl. own SEEP-modelling.
Recommendations concerning chemical grouts for repairs and sealing of concrete linings.
Evaluation of bolt types for tunnel projects in cold and hot water conditions.
03/2006 – 05/2008 for SWECO VBB AB Sweden Kárahnjúkar- Iceland
Senior Grouting Engineer TBM and D&B Tunnels, KAR 65.
Activities for Kárahnjúkar Hydroelectrical Project, Dams at Hálslón Reservoir, Headrace Tunnel and Jökulsá
Tunnel, Construction Supervision (VIJV).
Kárahnjúkar Project Main Characteristics:
Catchments area 1800 km2
Mean Flow 103 m3
/sec
Design discharge 144 m3
/sec
Hálslón reservoir storage 2100 hm3
Kárahnjúkar dam CFRD Height above foundation: 198 m
8.5 million m3
of rock fill
2. sid 2 av 9
Najder engineering®
Movägen 3; SE-133 36 Saltsjöbaden/Sweden
Tel: +46 8 717 5714 Fax: +46 8 717 6042 Mobil: +46 (0)704 217 012
Org. no: 490911-2148 VAT-no: SE490911214801 E-mail: tomasz.najder@hotmail.com http://najder.se/
Desjarástífla dam ECRD 60 m, 2.8 million m3
Sauðárdalsstifla dam ECRD 25 m, 1.2 million m3
HRT 40 km 3 TBM and D&B diam. 7,2 and 7,6 m
Jökulsá diversion dam H=30 m, tunnel 13,3 km diam. 6 m
Hraunaveita diversion 3 dams 25.000m3
, 46000m3
, 670.000m3
h=27m
2 tunnels 1,8 km+1.9 km diam. 5m
Surge tunnel 1.7 km 14.45% slope, diam. 5m
Pressure shafts 2x diam. 3.4m vertical H= 418m
Powerhouse rated head 524m, underground 6 Francis Units 6x115MW= 690 MW 4450 Wh/year
TRT 1200m diam. 9m
Reyðarfjörður ALCOA Aluminium plant 322,000t/year
Parties of the Contracts:
Client: Landsvirkjun (entity owned by the Icelandic State, the City of Reykjavík and the Town of Akureyri).
Contractor: Impregilo S.p.A. (100 %).
Owner Representative: VIJV (Visen-Ingar Joint Venture) formed by Mott MacDonald, SWECO, Norconsult,
and Coyne et Bellier, Línuhönnun, HNIT and Fjarhitun).
Design by KEJV (Kárahnjúkar Engineering Joint Venture) formed by Harza, Electrowatt, VST, Rafteikning,
Almenna Verkfrædistofan).
3. sid 3 av 9
Najder engineering®
Movägen 3; SE-133 36 Saltsjöbaden/Sweden
Tel: +46 8 717 5714 Fax: +46 8 717 6042 Mobil: +46 (0)704 217 012
Org. no: 490911-2148 VAT-no: SE490911214801 E-mail: tomasz.najder@hotmail.com http://najder.se/
Tectonics (according to contract documents):
“The lava pile dips 3 - 5° towards West in the downstream part but some 2 - 4° towards WNW in the upstream
part. The lava pile is affected by two relatively dense sub-vertical fault and dyke systems, both striking in N
direction in the downstream and middle part of the tunnel alignment and NE direction in the upstream part.
The less dense fault pattern in the youngest rocks indicates a decrease in tectonic activity with time.
Most of the lineaments are normal, sub-vertical faults with downthrown ranges between 1-40 m.
The typical observed spacing of the faults is 200 - 250 m downstream of Adit 2.
4. sid 4 av 9
Najder engineering®
Movägen 3; SE-133 36 Saltsjöbaden/Sweden
Tel: +46 8 717 5714 Fax: +46 8 717 6042 Mobil: +46 (0)704 217 012
Org. no: 490911-2148 VAT-no: SE490911214801 E-mail: tomasz.najder@hotmail.com http://najder.se/
A similar spacing is assumed in the upstream part of the project, where observation and detection of faults is
difficult due to overburden cover.
Fault zones are typically 0.5 - 2 m wide, characterized by sheared, crushed rock, with grain size distribution
ranging from blocks down to clay. In some faults, the coarse grained crushed material is well cemented by
fines, whereas in others the crushed material is weathered and loose.
Wider faults with thickness exceeding 10 m are considered probable along the Headrace tunnel, especially
within sediments where the effects of shearing is likely to be much more severe than in the basalts.
Faults are likely to act as main drains within the lava pile. Heavy water inflow into the tunnel is likely, at least in
some of the faults.
Sub-vertical dykes cross through the lava pile. Typical thickness of dykes ranges between 3 - 5 m. Their
thickness may reach 10 - 20 m. Dykes are usually sub-vertical and highly jointed”.
Grouting activities:
Pre grouting in TBM and D&B tunnels with ordinary cement- , micro cement or ultra fine cement
grouts and polyurethane resins (even in extremely high water temperature like +65 ºC).
Refilling of caverns as pre- and post grouting with urea-silicate foams.
Post grouting for sealing and rock stability (consolidation grouting) with cement grouts (even
accelerated), polyurethane resins and urea-silicate foams.
Stopping of water under pressure of 20 bars in warm and very cold water (like +1 ºC).
Curtain (ascending) grouting, consolidation- and contact grouting for concrete plugs in tunnels.
Curtain (ascending) grouting, consolidation- and contact grouting for tunnel linings.
Consolidation- and contact grouting for tunnel linings in fault areas (EGO sections).
Low pressure grouting and refilling of voids behind shotcrete.
Sealing of construction- and contraction joints with polyurethane resins in concrete linings.
Concrete repairs in concrete linings in tunnels and dam galleries.
Concrete repairs in concrete plugs with polyurethane- and methacrylate resins.
5. sid 5 av 9
Najder engineering®
Movägen 3; SE-133 36 Saltsjöbaden/Sweden
Tel: +46 8 717 5714 Fax: +46 8 717 6042 Mobil: +46 (0)704 217 012
Org. no: 490911-2148 VAT-no: SE490911214801 E-mail: tomasz.najder@hotmail.com http://najder.se/
_____________________________________________________________________________________________
1984-2001 Skanska AB (Stabilator AB) Stockholm / Gdańsk
Vice President, Executive Manager (Stabilator Poland) 1995- 2001.
Annual turnover: 50-120 mln SEK.
Activities as Consultant and Contractor:
- Emergency rock sealing of Breiðals- and Botnsheiði Tunnel in Ísafjörður (Iceland): total length of tunnel:
9 km.
Large water inflows: approx. 0.40-1.00 m3
/sec.
Max water pressure 30-40 at. Water velocity approx. 6.0 m/sec.
- Study of parameters for own proposed grout compositions.
- Detailed grout compositions based on cementitious suspensions with different accelerators and one- and two-
component polyurethanes.
- Detailed comments concerning grouting procedures and equipment.
- Direct leading of grouting campaign Botnsdalur leg tunnel (together with Dieter Zimmerling).
- Evaluations of obtains results.
- Training of local drilling and grouting staff.
6. sid 6 av 9
Najder engineering®
Movägen 3; SE-133 36 Saltsjöbaden/Sweden
Tel: +46 8 717 5714 Fax: +46 8 717 6042 Mobil: +46 (0)704 217 012
Org. no: 490911-2148 VAT-no: SE490911214801 E-mail: tomasz.najder@hotmail.com http://najder.se/
References:
1. Håkan Stille, Professor at Royal Institute of Technology KTH, Geokonsult Stille AB.
Mobile: 0046 708-62 29 97 (Sweden).
2. Björn Lundahl, formerly Technical Head of Foundation Department at Stabilator AB.
Mobile: 0046 705-80 40 84 (Sweden).
3. Ture Nilsson, formerly Technical Head of Grouting and Shotcrete Department at Stabilator AB.
Mobile: 0046 706-23 06 74 (Sweden).
