CV Tomasz Najder Part 1 2009.09.15 2016

POLIMARK INTERNATIONAL
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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, 15.09.2009 (2016)
TomaszNajder (Ph.D Civ.Eng.) - Part1
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
as Underconsult for Geokonsult Stille AB:
- Evaluation of soil and rock parameters concerning its transmissivity for 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.
2002-2005 Najder Engineering Ltd Gdańsk / Poland
President of the Board, Executive Manager, owner together with daughter Anna.
Activities as Consultant and Contractor:
- Slope stability with gabion mattresses and bio blankets, soil nailing and ground anchors.
- Environmental solutions for geotechnical and erosion control, bioengineering.
- Sealing membranes (hydraulic barriers) in dikes and embankments with gabions, steel-pile walls,
lime-cement columns (wet method defined as Deep-Soil-Mixing).
- Underpinning with Titan and TNa micropiles.
- Flow defence with different technical solutions.
- Technical advisor for Maritime Offices i Gdynia and Szczecin (coast erosion protection).
1984-2001 Skanska AB (Stabilator AB) Stockholm / Gdańsk
Vice President, Executive Manager (Stabilator Poland) 1995-2001.
Annual turnover: 50-120 mln SEK.
- Underpinning at Racibórz Castle-stage II.
- Steel sheet- pile walls, walls according to Berliner method, lime-cement secant-pile walls (wet method)
indoors.
- Slope stability with gabion mattresses and bio blankets, lime-cement columns.

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Tel: +46 8 717 5714 Fax: +46 8 717 6042 Mobil: +46 (0)704 217 012
- Emergency slope stabilisation of main road for heavy traffic with micropiles and lime-cement
columns in Przemyśl.
- Emergency slope stabilisations close to existing mediaeval ancient monuments in Gniew and Trzęsacz.
- Underpinning with Titan and hollow-auger micropiles in Koszalin, Sopot and in other places (ancient
buildings), industrial buildings, GSM-masts. All together approx. 4.000 running meters of micropiles.
- Lime-cement columns (dry method) within extremely weak organic soils (peat, gyttja, clay).
Shear strength about 15-30 kPa, water content up to 600 %.
Totally about 700.000 running meters of columns ø 500-800 mm.
- Sealing membranes (hydraulic barriers) in dikes end embankments with gabions, steel sheet-pile walls,
Lime-cement columns.
- Lime-cement secant-pile walls (wet method defined as Deep-Soil-Mixing).
- Emergency sealing works within flow defence incl. soil injections.
- Underpinning at Royal Castle in Warszawa. Conception: TNa:
- Steel sheet-pile walls driven with Vibro hammers very closed to ancient monuments on the slopes.
- Permanent ground anchors.
- Drainage systems, isolations, moisture membranes.
- Slope stability with gabion retaining walls.
- Brickwork reparations.
Contract time: 1995-2002. Contract value: approx. 140 mln SEK.
Activities as Consultant:
- Coast erosion protection with gabions, totally about 4.000 running meters of coast line.
- Emergency coast protection works.
- Slope stabilisation with soil reinforcement and rock netting.
- Retaining walls with gabion technology.
- 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.

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Tel: +46 8 717 5714 Fax: +46 8 717 6042 Mobil: +46 (0)704 217 012
Area Manager – Production Manager (Stabilator AB - International Division in Poland)
1990-1995.
- Underpinning of Malbork Castle (biggest brickwork castle in the world). Concept: TNa.
TNa micropiles ø 300-400 mm (bearing capacity up to 1200 kN)
Contract value: 25 mln SEK. Contract time: 1990-1996.
- Renovations of water supply and sewerage systems with in-situ form method (Warszawa, Wrocław,
and Kwidzyń).
- Other underpinning works in Gdańsk (theatre, housing, Victoria School, St. John Church), in Warszawa,
Racibórz Castle (stage 1), ABB turbine factory in Elbląg.
Site Manager, Internal Consultant (”trouble-shooter”):
Göteborg, Alingsås, Halmstad, Malmö, Oskarshamn (Äspö laboratory) and others (1986-1989)
Activities as Consultant and Contractor (Aspö):
- Pre grouting with cement and chemicals in rock tunnels.
- Study of parameters for own proposed grout compositions.
- Detailed comments concerning grouting procedures and equipment.
- Direct leading of injections performed in the tunnel.
- Evaluations of obtains results.
Other activities:
- Micropiles system TNA upp to ø 1000 mm.
- Compaction grouting (for house heave) at Arlanda Airport in Stockholm.
- Concrete repairs with epoxy, polyurethanes (water sealing, contact bonding).
- Pre stressed ground anchors (system TNA).
- Repairs of mediaeval Visby City wall.
Norrland (1987-1988):
- Slope stabilisations with shotcrete.
- Cement and chemical injection in soil and rock (penetration grouting for sealing and core restoring of
barrages in Hällby, Vargfors, Sikfors and many others). Different sealing works of earth and concrete
barrages. Concrete sealing and repairs. Development of own drilling concepts and packers incl. its
installation.
- GEWI injection micropiles (Piteå).
- Shaft sinking in Sikfors (concrete cylinder med diameter 20.0 m, weight 3500 ton, and final depth of
sinking 20.0 m). World record (!).
- Standpipe and drainage installations.
- Concrete works.
- Cement and chemical rock injections.
- Cement and chemical soil injections (leakages within contact zone to rock).
- Concrete repairs with epoxy, polyurethanes, microcement (water sealing, contact bonding).

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Tel: +46 8 717 5714 Fax: +46 8 717 6042 Mobil: +46 (0)704 217 012
- Prestressed ground anchors (system TNA).
- Concrete repairs with prestressed unbonded strand systems.
- Slope stabilisations with shotcrete and ground anchors.
Sundsvall (1986):
- Underpinning with Bjurström micropiles.
- Underpinning with Soilex micropiles.
- Special measurements concerning bearing capacity and load distribution for Soilex and TNa micropiles.
- Bridge restoring and strengthening with prestressed bars and post-tensioning of tendons (Alnö Bridge).
- Concrete repairs with epoxy, polyurethanes, microcement (water sealing, contact bonding).
Other works performed in Stockholm (1984-1986):
- Emergency foundation stabilisation with pre stressed ground anchors (system TNA) - Taube House.
- Underpinning with steel-core piles, Bjurström micropiles (Old Town).
Stockholm Central – Main Railway Station (1984-1986) - partially under heavy train traffic:
- Steel sheet-pile walls with prestressed ground anchors.
- Foundation works with precast concrete piles with joints, Bjurström micropiles and steel-core micropiles.
- Sealing works for steel sheet-pile walls with cement and chemical grouts.
- Large diameter piles ø 1000-2000 mm. Sealing works at piles toe.
- Concrete works.
- Emergency sealing works at steel sheet-pile wall toe with cement and chemical grouts.
Enormous water and soil inflow into excavation group.
- Concrete repairs (walls and floors at the basement of new building) with epoxy-, polyurethanes- and
microcement grouting (sealing against water) – approx. 3.500 runn.m of cracks (!).
- Cement and chemical grouting in rock.
Specialist worker- machine operator (1984):
- Cement and chemical grouting in rock.
- Bjurström micropiles (drilling rig operator).
- Shotcrete operator (dry method).
- Concrete repairs.
- Mounting of drainage elements and reinforcement (incl. nettings) in rock tunnels.
- Drilling, mounting, grouting and pre stressing of permanent soil anchors in weak clay (double grouting
system) in Halmstad.
1980-1982 Wyższa Szkoła Morska (Maritime University) Gdynia / Polen
Adjunct, Lecturer:
- Civil engineering, geotechnical engineering, harbour engineering.

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Tel: +46 8 717 5714 Fax: +46 8 717 6042 Mobil: +46 (0)704 217 012
1976-1978 Instytut Dróg i Mostów (Bridge and Road Institute) Warszawa / Poland
Consultant:
- Civil engineering, geotechnical engineering, foundation engineering.
1977-1980 Gdynia Harbour Gdynia / Poland
Supervisor, Employers representative, Consultant:
Baltic Container Terminal:
- Vacuum treated high strength concrete pavements for heavy loaded container and roll-on roll-off traffic.
- Crane beams incl. rail mounting.
- Special concrete works.
Contractors from Poland and Spain (crane mounting). Contract value: 20 mln SEK.
1973-1977 Gdynia Shipyard – Dry Dock no 2. Gdynia / Poland
Supervisor, Employers representative, Consultant, Research engineer:
- Steel sheet-pile walls with pre stressed ground anchors.
- Precast concrete piles with joints.
- Sealing works for steel sheet-pile walls with cement and chemical grouts.
- Emergency sealing works at steel sheet-pile wall toe with cement and chemical grouts.
- Concrete repairs with epoxy (sealing against water and contact bonding).
- Cement and chemical grouting in soil.
- Vacuum treated high strength concrete pavements for very heavy loads and traffic.
- Crane beams incl. rail mounting.
- Special concrete works (lowering of risk for early-age thermal cracks).
- Soil compaction with driven wooden piles and vibro-wing method.
- Emergency sealing works in soil (soil liquefaction due to high artesian water pressure) - leakages up
to 200 m3
/hour.
General Contractor: Skånska Cementgjuteriet AB, Stabilator AB. Contract value: 40 mln SEK.
1973-1974 Hydrobudowa-4 Gdańsk / Poland
Trainee – Site Manager (Division: Ground engineering- piling department):
- Precast concrete piles.
- In-situ formed concrete piles (Wolfsholz, Vibro, Fundex, and Franki).
 Practice 1983 Stabilator AB Departmentfor ground engineering
1972 Hydrobudowa-4 Department of harbour engineering
1971 PRCiP (Polish Dredging and Diver Works Company)
Education 1985-1999 Different internal postgraduate and technical courses within Skanska (legal and contractual
problems, concrete advanced education- level I andII and others)

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Tel: +46 8 717 5714 Fax: +46 8 717 6042 Mobil: +46 (0)704 217 012
1982-1983 Language courses (Swedish for immigrants).
1980 Technical University in Gdańsk / Poland
Doctors thesis within geotechnical engineering:
”Retaining walls with prestressed injection ground anchors located in several rows”.
1968–1973 Technical University in Gdańsk / Poland
Water building Department
1980 Thesis for the degree of Master of Science:”Heavy loaded quays based on pile groups.”
1957–1968 Elementary and Secondary School in Gdańsk / Poland
Hobby
 Sailing, literature, music, travel.
Other  Languages: Swedish, Polish, English, German, Russian.
Other activities:
- Lectures at Copernicus University in Toruń (Poland). Position as ”visiting professor” since 1997:
1. Moisture problems in ancient buildings. Physical aspects and chemistry.
2. Sealing, membranes and isolations against water and moisture in ancient buildings.
3. Static of ancient buildings. Strengthening and restoring problems.
4. Restoring of old foundations. Underpinning methods.
5. Traditional building methods and materials.
 More than 70 technical publications, 1 handbook about prestressed ground anchors.
 Patent:
1. Rails mounting on epoxy thin layers for heavy harbour cranes (1976).
2. TNa-system for micropiles and injected ground anchors- geotextile bag system (2003).
3. Special drilling method for injected micropiles and ground anchors (2004).
References:
1. Håkan Stille, Professor at Royal Institute of Technology KTH, Geokonsult Stille AB.
Mobile: 0046 708-62 29 97 (Sweden).

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Tel: +46 8 717 5714 Fax: +46 8 717 6042 Mobil: +46 (0)704 217 012
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).
Ph.D Civ. Eng. Tomasz Najder

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Tel: +46 8 717 5714 Fax: +46 8 717 6042 Mobil: +46 (0)704 217 012

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Tel: +46 8 717 5714 Fax: +46 8 717 6042 Mobil: +46 (0)704 217 012

CV Tomasz Najder Part 1 2009.09.15 2016

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CV Tomasz Najder Part 1 2009.09.15 2016