Gulf Tunneling Company Profile

7/17/2019 Gulf Tunneling Company Profile

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COMPANY PROFILE

GULFTUNNELING

GULF TUNNELING



COMPANY PROFILE

ORGANIZATION CHART & KEY STAFF

EXPERIENCE

MICRO-TUNNELING: THE IDEA

TECHNICAL DESCRIPTION

HDD

EQUIPMENT

HEALTH, SAFETY, ENVIRONMENT

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01 COMPANY PROFILE

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Gulf Tunneling (GT) is an engineering firm that specializes in planningand executing complex boring & tunneling works. We are considered thebiggest self-contained Micro-Tunneling company in the GCC. Our acquiredtechnological & operational experience—coupled with the rapid growthof the region—allows us to partake in great infrastructure projects anddevelopments throughout the State of Qatar, with over 45,000 meters oftunnel currently installed or ongoing.

Our underground installaons have reached remarkable depths, on every type ofground condion, with pipe diameters reaching several meters. We have servedgovernment agencies, gas majors, private contractors, and private developersusing our field-expertise and our fleet of equipment (including TBMs,separation plants, control containers, cranes, water tankers, and more). Ourservices include installation of all kinds of underground gravity and pressurepipelines for drainage, water mains, and utility tunnels.

Since inception in 2002, GT has become a leader in the field of Micro-Tunneling. Our technical & commercial team is multinational, comprised ofprofessionals with project experience from around the world. HSE has alwaysbeen a top priority: we have maintained a record of zero Loss-Time Incidents

(LTI) in every project.

GULF

TUNNELING

COMPLEX BORING& TUNNELING WORK

“biggest self-contained Micro-Tunneling company in the Gulf”

OVER 45,000 METERS OF TUNNEL CURRENTLY INSTALLED OR ONGOIN

LIMITLESS SHAFT DEPTHS

MILLIMETER PRECISIO

INJURY-FREE OPERATIONS

At Gulf Tunneling, our objective is excellence.

GULF TUNNELING



02 ORGANIZATION CHART & KEY STAFF

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KEY

PERSONNELSummary of

Experience

MT IN-CHARGE HOUSSAM RASSMY , BSc Eng.

▌ Experience in Tunneling & Boring Works: 16 years (GCC & Egypt) ▌ Employed by GT: 8 years.

OPERATIONS IN-CHARGE NADER DAHAB, BSc Civil Eng.

▌ Experience in Construction: 17 years (GCC & Egypt) ▌ Experience in Tunneling & Boring Works: 15 years ▌ Employed by GT: 5 years.

MT OPERATION ENGINEERS

MOHAMMAD DAIDAMONY , BSc Communication & Electrical Engineering ▌ Experience in Tunneling & Boring Works: 7 years (GCC & Egypt) ▌ Employed by GT: 4 years

DAVID ABRAHAM, Diploma Electronics Eng. ▌ Experience in Tunneling & Boring Works: 12 years (GCC & India) ▌ Employed by GT: 3 years

HUSHAM IBRAHIM, BEng. ▌ Experience in Tunneling & Boring Works: 14 years (GCC, India, Africa) ▌ Employed by GT: 4 years

TAREK ABU LAILA , BSC Mech Eng. ▌ Experience in Tunneling & Boring Works: 12 years (GCC & Egypt) ▌ Employed by GT: 7 years

HDD OPERATORS KAMBALATHAN M

▌ Experience as Directional Drilling Operator: 12 years (GCC & India) ▌ Employed by GT: 3 years

MANIVEL ELAVAZHGAN ▌ Experience as Directional Drilling Operator: 10 years (GCC) ▌ Employed by GT: 3 years

VENGADASMY MUTHURAJ ▌ Experience as Directional Drilling Operator: 11 years (GCC) ▌ Employed by GT: 2 years

MAINTENANCE ENGINEERS WASSIM EID, BSc Mech Eng.

▌ Experience in Maintenance Works of Heavy Plant & Equipment: 10 years (GCC & Syria) ▌ Employed by GT: 1 year

HSE OFFICER JIMOH KAZEEM ADEWALE

▌ Experience as Health, Safety, Environment Officer: 9 years (GCC & Africa) ▌ Employed by GT: 2 years

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MANAGINGDIRECTOR

MT IN-CHARGEHOUSSAM

RASSMY

OPERATIONS IN-CHARGENADER DAHAB

SAFETY OFFICER

QA / QCINSPECTOR

MT Operation Eng.DAVID

ABRAHAM

SECRETARY DOCUMENTCONTROLLER

Maintenance Eng. WASSIM

EID

1 Foreman6 Labours

MT Operation Eng.TAREK

ABU LAILA

MT Operation Eng.HUSHAMIBRAHIM

2 HDD Operators10 Labours

MT Operation Eng.MOHAMMADDAIDAMONY

HDD SeniorOperator

KAMBALATHAN

1 Electrician1 Mechanic4 Assistance

1 Foreman6 Labours

1 Foreman6 Labours

1 Foreman6 Labours

ORGANIZATION CHART

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EXPERIENCED. PASSIONATE. QUALIFIED.

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HOUSSAM EL-DIN MOHAMED RASSMY QUALIFICATIONS: B.Sc. Eng. Ain Shams University - Cairo 1989

CAREER SUMMARY: Over 16 years’ experience as a Tunneling Operating Engineer.

EMPLOYMENT RECORD:2002 - Present Gulf Tunneling

Micro-Tunneling In Charge, Doha, Qatar BP#1G - 1B(3) Al Luqta Micro Tunnels & Ducts Doha Express Way - D Ring Road Interchange Civil Project 622/2 Tunnel 200m Civil Project 624 & 625 Tunnel 1,800m Civil Project 174/1 Tunnel 250m Civil Project 622/1 Tunnel 280m

Civil Project 621 Tunnel 760m Civil Project 394 Tunnel 3,500m Industrial Area Sewerage - Phase 1

1998 - 2002 Silver Coast Construction & Boring Co. LLC Millennium T&GM

Micro-Tunneling Operating Engineer, Abu Dhabi, UAE Mirfaa Sewerage Scheme Tunnel 4,000m Abou Hassa Road Crossing Tunnel 700m Qurain Al Aish & Mirfaa Tunnel 1,450m

1996 - 1998 Astraco Construction Micro Tunneling Operating Engineer, UAE Al Ain Water Distribution Network Tunnel 3,300m Water Distribution Network at Al Shabak Tunnel 400m

1995 - 1996 Admak Micro Tunneling Operating Engineer, Bahrain Heelliah 1 & 2 Tunnel 820m Samha Sewerage Scheme 503/1 Tunnel 970m

1994 - 1995 Behzad Micro Tunneling Operating Engineer, Bahrain 050/98/31 66kV Transmission Dev. Tunnel 900m

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O p e r a t i o n s I n - C h a r g

NADER FADL MAAMOUN DAHABQUALIFICATIONS: B.Eng. Civil Engineering Zagazig University, Egypt - 1993

CAREER SUMMARY: Over 16 years’ experience as a Tunneling Operating Engineer .

EMPLOYMENT RECORD:2006 - Present Gulf Tunneling Operations In-Charge, Doha, Qatar Supervision & operation of “Herrenknecht” micro-tunneling machine for AVN 600, AVN

800, AVN 1000, AVN 1200, AVN 1600, AVN 2000 and AVN 2400 BP#1G - 1B(3) Al Luqta Micro Tunnels Doha Express Way - D Ring Road Interchange 2,749m Civil Project 565 Tunnel 6802m Civil Project 622/2 Tunnel 200m Civil Project 624 & 625 Tunnel 1,800m Upgrading of West Bay & Gharaffa Water Station 545m

2005 - 2006 General Construction Co. Senior Project Engineer, Abu Dhabi, UAE Construction of Water line & Civil Work for 8,000 residential accommodations at Alshawamekh

1997 - 2005 Al Manbaa Drilling Est. Assistant Project Manager, Abu Dhabi, UAE Supervision & operation of “Herrenknecht” micro-tunneling machine for AVN 500, AVN 800B, AVN 1000, AVN 1200, AV ADSS Contract No. 507/1 Tunnel 350LM

ADSS Contract No. 507/3 Tunnel 540LM ADSS Contract No. WED/AD/208-206 Tunnel 1400m ADSS Contract No. 142/15 Tunnel 500LM ADSS Contract No. 142/1B Tunnel 550LM ADSS Contract No. 404 Tunnel 825LM ADSS Contract No. 514/4 Tunnel 700LM ADSS Contract No. N-0226 Tunnel 300LM ADSS Contract No. 142/18 Tunnel 900LM ADSS Contract No. 718A Tunnel 1,750m ADSS Contract No. 515/5 Tunnel 750LM ADSS Contract No. 981 Tunnel 920LM ADSS Contract No. 408/1 Tunnel 800LM ADSS Contract No. N-00-0302 Tunnel 900LM ADSS Contract No. N-000-0173-Lot A Tunnel 1,100m ADSS Contract No. WED-44/89 Tunnel 2,180m ADSS Contract No. 48/2 Dubai Municipality Tunnel 1,480m

1995 - 1997 Cairo Water Consortium

Tunneling Engineer, Cairo, Egypt Supervision & execution of shield machine (Lovat - Germany)for 2,200 mm DIA with Tunnel 6,400mSupervision & execution of Herrenknecht Micro-Tunneling machine for AVN 600

1994 - 1995 Greater Cairo Utility Data Center Civil Engineer, Cairo, Egypt

1993 - 1994 Mechanical Engineering Group Co. Civil Engineer, Cairo, Egypt

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MOHD. EL-DAIDAMONY SAYED AHMED EL-DEEBQUALIFICATIONS: B.Sc. Communications & Electronics Engineering Zagazig University - Egypt 2000

TRAINING COURSES: Computer Interface Cards design & circuit design Data acquisition systems design & digital control design Installation and programming of PBX telephone system

Assembly, C, and C++ Programming Control modules using AVR microcontroller & LCD modules PLC and Control Panel Programming


EMPLOYMENT RECORD:2006 - Present Gulf Tunneling Site Engineer & Micro-Tunneling Operator Electrical/Technical Support Doha, Qatar BP#1G - 1B(3) Al Luqta Micro Tunnels & Ducts 1,200 mm DIA Tunnel 508m Doha Express Way - D Ring Road Interchange

2,000 mm DIA Tunnel 2947m Civil Project 622/2 600 mm DIA Tunnel 73m 800 mm DIA Tunnel 148m 1,200 mm DIA Tunnel 565m 1,600 mm DIA Tunnel 977m

2,000 mm DIA Tunnel 637m Civil Project 624 & 625300 mm DIA Tunnel 1,648m

600 mm DIA Tunnel 876m 1,000 mm DIA Tunnel 1,860m

GTC-78 Upgrading of West Bay & Gharaffa Water Stations Hassan Juma Backer Co. 1,000mm DIA Tunnel 155m 1,200mm DIA Tunnel 391m Civil Project 565 Drainage Affairs, ASHGHAL 1,500mm DIA Tunnel 1,283m 2,000mm DIA Tunnel 1,082m 2,400mm DIA Tunnel 4,437m

2003 - 2005 Global Engineering Services Site Engineer & Micro-Tunneling Operator Electrical/Technical Support Kuwait Slawa Sewerage Scheme

Kuwait Cont. DE-46 Tunnel 10,369 LM

2002 - 2003 Commerce and Technology Group Site Engineer, Cairo, Egypt Responsible for installation & commission of light current system

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DAVID MAMACHAN ABRAHAMQUALIFICATIONS: Diploma in Industrial Electronics Engineering Two year Specialization in Engineering Drawing

CAREER SUMMARY: Over 10 years’ experience as Tunneling Operations Engineer

EMPLOYMENT RECORD:

2008 - Present Gulf Tunneling Micro-Tunneling Engineer, Doha, Qatar Doha Express Way - D Ring Road Interchange Civil Project 622/2 Tunnel 200m GTC-78 Upgrading of West Bay & Gharaffa Water Stations Hassan Juma Backer Co. 1,000mm DIA Tunnel 155m 1,200mm DIA Tunnel 391m Civil Project 565 Drainage Affairs, ASHGHAL 1,500mm DIA Tunnel 1,283m 2,000mm DIA Tunnel 1,082m

1998 - 2008 Assistant Maintenance Engineer India Municipality Mumbai Sewage Project Tunnel 3,900m

Bahrain Al Hassanain Trading Corp. Tunnel 3,900m Al Khaja Est. Tunnel 190m

Qatar Min. Agriculture C.P. 675395/4 & 574 Tunnel 5,000m SATCO Company Tunnel 45m Lotus Company Tunnel 110m

Al-Huda Engineering Min. Drainage Affairs, C.P. 451/A Tunnel 1,200m C.P. 505 Phase 2 Tunnel 95m Al Jaber Engineering Tunnel 93m Qatar Petroleum, Tekfen Co. Tunnel 215m CCC Company Tunnel 210m Mesaieed Transmission Pipeline Tunnel 110m Ras Gas & Black Cat Construction Tunnel 135m Medgulf Company Tunnel 75m

Kingdom of Saudia Arabia Riyadh Feeder Line Bypass, Thumamah Junction

Al Rashid Company Tunnel 260m Ministry of Drainage Affairs (Riyadh)

Cercon Company Tunnel 90m Royal Commission - Jubail Tunnel 90m

Oman Ministry of Affairs MSCP Project Tunnel 435m

M i c r o T u n n e l i n g E n g i n

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HUSHAM HUSSEIN IBRAHIMQUALIFICATIONS: B. Eng. Birla Institute of Technology, India


EMPLOYMENT RECORD:

2007 - Present Gulf Tunneling Micro-Tunneling Division Engineer, Doha, Qatar BP#1G - 1B(3) Al Luqta Micro Tunnels & Ducts Doha Express Way - D Ring Road Interchange Civil Project 624 & 624 - Tunnel 1800 m Civil Project 174/1 - Tunnel 250 m Civil Project 565

2002 - 2007 Al Manbaa Drilling Establishment Mechanical Engineer, Abu Dhabi, UAE Routine maintenance, Minimize down-time of machinery, Trouble-shooting & technical support, Supervision of

Mechanical work, Planning of activities with emphasis on quality control, Coordination with commissioningauthorities & teams, Management of projects with Micro-Tunneling Machines: Water pipe lines, Sewage lines

1998 - 2002 Al Mansoori Mechanical Engineer, Abu Dhabi, UAE Supervision of company workshop, Creation of recommendation & maintenance plans (preventative &

predictive) of heavy machinery & equipment, Schedule planning & coordination with site supervisors Erection of instruments: (Hydraulic & Pneumatic) machines, Oil field services equipment, Industrial plants Spare parts, Supervision with particular emphasis on HSE

1994 - 1998 Al Manbaa Drilling Establishment Mechanical Engineer, Abu Dhabi, UAE Installation designing, Repair & maintenance of earth-moving equipment, hydraulic machines and associate

controls, Installation & maintenance of: Pneumatic systems, Water pumps, Generators,Heavy duty diesel engines

Site Engineer, Abu Dhabi, UAE Construction of non-disruptive road-crossing of horizontal drilling using Micro-Tunneling and Pipe-Jacking method.

1993 - 1994 El Rodwan Trade & Services Co. Ltd.

Engineer, Sudan Repairing of revolving and reciprocating machines, Maintenance planning, Overhaul schedule reviews of

machine drawings, Ordering of spare parts, Defect report studies, Recommendations of policy modifications.

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TAREK ABD EL RAHMAN ABO LAILA QUALIFICATIONS: B. Eng. Mechanical Engineering Zagazig University - Egypt 1992

TRAINING COURSES: Basics of Pneumatic Control, Basics of Hydraulics Control I, Basics of Hydraulics Control II, Four months Azhar Tunnel Project in TBM 9.4m DIA, Maintenance & Mechanical Training


EMPLOYMENT RECORD:2003 - Present Gulf Tunneling Micro-Tunneling Engineer & Maintenance Engineer Doha, Qatar CP 565 Drainage Affairs, ASHGHAL BP#1G - 1B(3)

Al Luqta Micro Tunnels & Ducts Doha Express Way - D Ring Road Interchange Civil Project 622/2 Tunnel 200m Civil Project 624 & 625 Tunnel 1,800m Civil Project 622/1 Tunnel 280m

Civil Project 394 Tunnel 3,500m Upgrading of West Bay & Gharaffa Water Station - 545m

1998 - 2003 Arab Contractors Micro-Tunneling Operating Engineer & Maintenance/Site Eng. Kuwait Using Herrenknecht Machines: Bab Zeuela Project (AVN 600mm DIA) Tunnel 500 LM El Marg Project (AVN 600mm DIA) Tunnel 1,700LM Salwa Proj. @Kuwait Country (AVN 600mm) Tunnel 600LM El Oroba Tunnel Project (AVN 600mm) Tunnel 600LM Fatmia Cairo Project (AVN 1,000mm) Tunnel 350LM Faisal - 26th July Corridor Shibien El Kanater - Fayed Tunnel 380m Alex Elmax Project (AVN 700mm) Tunnel 540LM

1995 - 1998 Arab Contractors Maintenance Engineer, Kuwait

Bridge & Special Construction Department: mechanics & repair, heavy equipment, concrete pumps, hydr

works, (Main workshop & on-site), Making of overall Hydraulic Transmission

1993 - 1995 Military Force Engineer, Egypt Main Workshop for Heavy Equipment: maintenance & repair of loaders, excavators, bulldozers


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KAMBALATHAN MUTHUSAMY QUALIFICATIONS: Manufacturer training in HDD operation.

CAREER SUMMARY: Over 14 years’ experience in Horizontal Directional Drilling.

EMPLOYMENT RECORD:2008 - Present Gulf Tunneling HDD Operator, Doha, Qatar

2005 - 2008 Gulf Direction Drilling HDD Operator, Abu Dhabi, UAE

1996 - 2005 AJECT Company HDD Operator, Damman, KSA

H D D S e n i o r O p e r a t o r

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WASSIM ELIAS EIDQUALIFICATIONS: B. Eng. Mechanical Engineering Al Bath University - Syria 2006

CAREER SUMMARY: Over 3 years’ experience in maintenance of heavy equipment and

micro-tunneling machines.

EMPLOYMENT RECORD:2009 - Present Gulf Tunneling Micro-Tunneling Maintenance Engineer, Doha, Qatar

2007 - 2009 General Company of Phosphate and Mines GECOPHAM Mechanical Engineer, Homs, Syria Supervised maintenance of heavy machines in the Eastern Phosphate Mines Rear dumpers excavators Bulldozers Wheel loaders Cranes

etc.

M e c h a n i c a l E n g i n e e

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JIMOH KAZEEM ADEWALEQUALIFICATIONS: B.Sc. Technology in Industrial Safety The Federal University of Technology, Akure

CAREER SUMMARY: Over 9 years’ experience as a Health, Safety, & Environment Officer.

EMPLOYMENT RECORD:2009 - Present Gulf Tunneling HSE Officer, Doha, Qatar

2009 Domain Engineering HSE Officer, Doha, Qatar

2006 - 2009 Frame Development Company Limited HSE Officer, Ibadan, Nigeria

2004 - 2006 Mid Atlantic Construction HSE Officer, Ibadan, Nigeria

2001 - 2003 Heritage Builders Nigeria Limited

HSE Officer, Ibadan, Nigeria

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KRISHNAKUMAR VENKATA SAMY QUALIFICATIONS: B. Eng. Instrumentation & Control Engineering Arulmigu Kalasalingam College of Engineering, Krishnankoil Madurai Kamaraj University, India 1993-1997


EMPLOYMENT RECORD:2008 - Present Gulf Tunneling Micro-Tunneling Engineer, Doha, Qatar C.P. 624 & 625 Tunnel Length 1,800m C.P. 174/1 Tunnel Length 250m

2004 - 2008 Thrusboring Construction Company (TAMIMI Group) Micro-Tunneling Engineer, Kuwait Sanitary Renovation Works Ministry of Public Works Drive Length 5,200m

2002 - 2001 Civil Works Company Engineer, Damam, KSA Public Works Project Drive Length 1,200m

1998 - 2002 India Municipality Engineer, Mumbai, India Mumbai Sewage Project Drive Length 3,700m


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SIMON VARGHESEQUALIFICATIONS: B.Eng. Mechanical Engineering St. Joseph’s College of Engineering, Chennai Anna University, India

TRAINING COURSES: National Thermal Power Corporation (Badarpur, Delhi, India) M/s Kempe Engineering Services (Doha, Qatar)

CAREER SUMMARY: Over 12 years’ experience as a Tunneling Operations Engineer.

EMPLOYMENT RECORD:2010 - Present Gulf Tunneling Micro-Tunneling Engineer, Doha, Qatar

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BOGHDADI ABD-EL WAHABQUALIFICATIONS: Manufacturer Training on Micro-Tunneling Machines.CAREER SUMMARY: Over 15 years’ experience in Micro-Tunneling works.

EMPLOYMENT RECORD:

2005 - Present Gulf Tunneling Micro-Tunneling Foreman, Doha, Qatar

2004 - 2005 Global International Company Micro-Tunneling Foreman, Kuwait & Oman

2002 - 2004 Qatar Building Company Micro-Tunneling Foreman, Doha, Qatar

1998 - 2002 Arab Contractors A.R.E. Micro-Tunneling Foreman, Kuwait

1994 - 1998 C.W.C. International A.R.E.

Micro-Tunneling Foreman

M i c r o T u n n e l i n g F o r e m

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MOHAMMED MEHANA QUALIFICATIONS: Manufacturer Training on Micro-Tunneling Machines.

CAREER SUMMARY: Over 13 years’ experience in Micro-Tunneling works.

EMPLOYMENT RECORD:2005 - Present Gulf Tunneling Micro-Tunneling Foreman, Doha, Qatar

2004 - 2005 Global International Company Micro-Tunneling Foreman, Kuwait

2002 - 2004 Qatar Building Company Micro-Tunneling Foreman, Doha, Qatar

1998 - 2002 Arab Contractors A.R.E. Micro-Tunneling Foreman, Kuwait

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SAYED ABD-ELBWAHAB MOHD. AHMEDQUALIFICATIONS: Manufacturer Training on Micro-Tunneling Machines.

CAREER SUMMARY: Over 14 years’ experience in Micro-Tunneling works.


1999 - 2003 Orascom Company Micro-Tunneling Foreman, Egypt

1994 - 1999 C.W.C. International A.R.E. Micro-Tunneling Foreman

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YOUSARRI MAHMOUD MOHD. HAMEDQUALIFICATIONS: Manufacturer training.

CAREER SUMMARY: Over 16 years’ experience in Micro tunneling.


1998 - 2002 Arab Contractors A.R.E. Micro-Tunneling Foreman , Kuwait

1994 - 1998 C.W.C. International A.R.E. Micro-Tunneling Foreman

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MANIVEL ELAVAZHGANQUALIFICATIONS: Manufacturer training in HDD operation.

CAREER SUMMARY: Over 9 years’ experience as HDD Locator & Operator.



H D D O p e r a t o r

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VENGADASMY MUTHURAJQUALIFICATIONS: Manufacturer training in HDD operation.

CAREER SUMMARY: Over 12 years’ experience in Horizontal Directional Drilling.



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VELU SUGUMAR QUALIFICATIONS: S.S.L.C.

TRAINING COURSES: Electrician Technical Course from Tamilnadu Technical

CAREER SUMMARY: Over 15 years’ experience as Electrical Foreman & Supervisor.

EMPLOYMENT RECORD:2010 - Present Gulf Tunneling Electrician, Doha, Qatar

1996 - 2009 AJECT Company Electrical Foreman & Site Supervisor, Dammam Saudi Arabia

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03 EXPERIENCE

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PROJECTS Horizontal Directional Drilling (HDD)



PROJECTS

Project No. Project Name Client MainContractor

Diameter ofTunnel (mm)

Length ofTunnel (m)

QP Al Luqta Micro Tunnels and Ducts Drainage Affairs, ASHGHAL QBC 600 889

Qatar Power Transmission System Expansion

Phase V111/EHV Power cable KAHARAMAA QBC 700 640

Lusail Development ProjectSewerage Treatment Works

Lusail Real Estate/Qatari Diar QBC 200 108

Existing Distribution Network KAHARAMAA Al Waha Contracting

300 152.5

Design & Distribution of Traffic Diversion forWakra Ras Abu Abboud Road Intersection Road Affairs, ASHGHAL QBC 160 56

Head Works Construction at Airport,Old Salwa,Doha SW & Messaieed Town KAHARAMAA QBC 300 165

Qatar Power Transmission System ExpansionPhase V111/EHV Power Cable KAHARAMAA QBC 300 126.4

BP#1G-1B (3)

GTC 142/D/2006

TAC/LUS/101/09

GTC 276/2009

GTC040

GTC 177/2007

GTC 142/E/2006

Horizontal Directional Drilling (HDD)

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PROJECTS Micro - Tunneling



PROJECTS Micro Tunneling

Project Name ClientMainContractor


Length ofTunnel (m)

No. ofTBMs used

Doha & Rayyan SeweragePhase 2CP 626/2 Drainage Affairs, ASHGHAL QBC

2003004005006001,000

2,1005,7903.0908132,4071,366

2

Lusail Development Sewerage Treatment

Qatari Diar/Lusail QBC 2,000 1,120 1

GTC 269/2008 New Reservoirs & Assoc.PipelinesGharaffa,West Bay,Salwa Indust,WEst Bay,SalwaIndust, Bani Hajr Water Station

KAHARAMAA QBC 2,000 81 1

Muraikh Area Drainage andoutfall CP 565 Drainage Affairs, ASHGHAL QBC

6008001,0001,2001,6002,0002,400

130.38258.15738.1117.121,113.651,6994,362

7

Head Works Construction at Airport,Old Salwa,

Doha SW & Messaieed Town GTC 177/2007 KAHARAMAA QBC

1,600

1,200

240

281.31 2

BP#1G - 1B(3)Al Luqta Micro Tunnels and Ducts

Qatar Foundation forEduction city QBC 1,200 508 1

Doha Expressway D-Ring RoadInterchange ERC 1400/D20/C4 Road Affairs, ASHGHAL QBC - Terna,

JV 2,000 2,749 1

PS 25 & 26 Catchments Sewerage Phase 2 CP 622/2 Drainage Affairs, ASHGHAL QBC

6008001,2001,6002000

73148565977637

5

Abu Hamour AreaSewerage Phase 1CP 624 & 625 Drainage Affairs, ASHGHAL QBC

3006001,000

1,6488761,860

2

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PROJECTS Micro - Tunneling



PROJECTS Micro Tunneling

Project Name ClientMainContractor


Length ofTunnel (m)

No. ofTBMs used

Industrial Area Sewerage Phase1 CP 394 Drainage Affairs, ASHGHAL QBC

600800900

1621,577844

3

PS 25 & 26 Catchments Sewerage CP622 Drainage Affairs, ASHGHAL QBC 600 73 1

Barwa Commerical Avenue Project Barwa Hochtief 800 317.13 1

Doha & Rayyan Sewerage Phase 3 CP 626/3

Drainage Affairs, ASHGHAL Nael BinHarmal

4005006001,000

7906306602380

2

Development of Roads at NorthKhalifa & Markhiya Area, Zone 32

& 33Road Affairs, ASHGHAL

QBS Interna-tional

400600800

197571,135 2

GTC 78 Upgrading of West Bay &Gharaffa West Station KAHARAMAA Hassan JumaBacker 1,0001,200 154.94390.58 2

Interconnecting Barwa City &Barwa Commerical Avenue Barwa/ Hochtief MACE 3000 335 1

Reinforcement of waterTransmission - GTC 275/2009 KAHARAMAA HBK 1200 100 1

Road Crossing Road Affairs, ASHGHALMidmac Con-tracting & Yuk-sel Insaat JV

3000 378 1

Lusail Development Project

Construction (CP2)

Qatari/ Diar Lusail Aljaber &

Partner

1,600 1,170 1

Zoo Road to Rayyan Road CP 174/1

Drainage Affairs, ASHGHAL QBC 1,000 1,144 1

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THE IDEA

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▌ MICRO-TUNNELING As the name implies, micro-tunneling is the term for constructing small tunnels. These small diamtunnels make it impossible to have an operator inside the actual machine. Instead, the micro-tunning machine (“MTBM”) must be operated remotely.

▌ OPERATOR The operator directs the machine remotely from the safety of a control room on the ground’s surfaThe operator is given constant feedback about the machine location, orientation, and correspondindraulic devices via a computer console. Machines also have video cameras and laser guidance thatthe operator more information. The operator controls the MTBM and the jacking frame with millimprecision.

▌ PIPEIn most micro-tunneling operations the pipe is inserted from the entrance and pushed behind the chine. This process is often called “Pipe Jacking”. As the machine advances, more tunnel liner is pufrom the entrance; thus, the speed of the advancing machine is controlled by the speed at which tpipe is inserted.

▌ FRICTION As the length of tunnel increases, the friction against the earth around the pipe also increases.

Two practices are used to minimize this friction. First, “over-cutting” gives a slight gap between thner edge of the tunnel and the outer edge of the liner. This requires a cutter wheel with a diameterinch (12mm) to 4 inches (100mm) larger than the outside diameter of the liner. Second, an econoand ecologically friendly lubricant, often bentonite slurry, is injected into this gap.

In addition to the actual lubrication effect, the pressure of the lubricant also prevents the gap fromlapsing.

▌ LONGER TUNNELSIn addition to the jacking frame, smaller jacks, called “interjacks,” may be inserted between sectiolonger tunnel liners. These interjacks push the two sections of liner apart, while friction on the line

tions between the interjack and the tunnel entrance prevent the liner from sliding backwards. Therthe liner behind the interjack does not move, and the sections in front of it receive additional pushforce.

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05 MT TECHNICALDESCRIPTION

32 GULF TUNNELING

1 MICRO TUNNELING



GTuses the world’s most reliable Micro-Tunneling machine, Herrenknecht

AVN type—complete with all equipment—to drive non man-entrytunnels, using pipe-jacking techniques in the trenchless concept of

pipe works. This modern machine type now allows access to the working facefrom the jacking pit via a door just behind the cutting face. Obstacles such as sheetpiles, steel girders, and boulders can now simply be removed. This new accessalso provides the ability to replace worn cutter rings, allowing tunneling in hardrock to be extended to retention lengths of over 500m.

This system is ideal for use in urban areas. Additional ground-improvementprocesses will be unnecessary (such as compressed air, ground treatment, orfreezing), and the convenient size of the launching and reception shafts allow for:

▌ Minimal disturbance to traffic ▌ Maximum possible conservation of protected landscape areas

▌ Compact containerized equipment design on the surface

CREW

The Gulf Tunneling crew that is responsible for the Herrenknecht AVN machinesoperation and maintenance are:

▌ MT engineer/operator ▌ MT fitter & welder ▌ MT electrician ▌ 5-7 laborers

M/S Herrenknecht will provide direct technical assistance and/or presence on a

need-to basis in the rare case of unforeseen difficulties during execution.

SYSTEM COMPONENTS

Micro-tunneling system components used on most projects include:

▌ Micro-tunneling machine c/w cutting head ▌ Control container c/w power pack module ▌ Jacking frame ▌ Interjack stations ▌ Separation plant c/w tanks with fresh water storage capacity ▌ Mobile crane to set up the machine and to handle the pipes ▌ Bentonite pump and bentonite system ▌ Feed and slurry pumps ▌ Pipe rack to hold feed and slurry pipes ▌ Shaft feed and flexibile slurry lines ▌ Launch seals ▌ Laser guidance system ▌ Generator with sufficient power output for all components’ requirements ▌ Launch and reception shafts

▌ Jacking pipes 3 meters long ▌ Water supply

KEY ADVANTAGES TO MICRO-TUNNELING/PIPE-JACKING

Micro-Tunneling and Pipe-Jacking is reliable and cost-effective. Key advantainclude:

▌ Minimal earth moving (only for launching & receiving shafts) ▌ Absence of ground-water lowering (thus preventing dangerous settlemen

building foundations and road services) ▌ Optimal protection for people and nature ▌ Minimal effect to traffic and pedestrian mobility above ground ▌ Flexible driving alignment (i.e. curved or linear)

▌ All-weather construction (thus allowing for rapid completion and meetingdeadlines)

▌ All ground-condition tunneling (including clay, silt, sand, gravel, and lime

1. MICRO-TUNNELINGIN BRIEF

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Structural and mechanical components create a system for tunneling activities. The following pages provide a brief description of the main components in Micro-Tunneling construction.2. TUNNELING PROCESS

34 GULF TUNNELING



2.1 Micro-Tunneling Machine c/w Cutting Head

The cutting head of the tunneling machine is fitted with disc cutters to cut theentire face of the tunnel, and is designed in a manner to operate in saturatedground with water pressure.

The excavated material passes through openings in the cutting head to the crushing& mixing chamber. The conical crushing chamber reduces the excavated materialto a size suitable for conveying to the surface separation plant. Transportation ofcrushed material is achieved by using injected water through the feed nozzles,which carry it through the back pipe. Crushing the excavated material minimizesblocking of system components.

The cutting wheel is driven by means of hydraulic motors located within the cuttinghead assembly. This renders both excavating and crushing powers independentfrom the distance to the launch shaft.

The rotation of the cutting head and transportation of the excavated material iscontinually controlled and operated while the TBM progresses forward.

The advance movement of the cutting head is achieved by the jacking forces fromthe pipes behind as they are pushed forward with hydraulic rams located in the

jacking frame.

The following are special features for AVN machines:

▌ Designed for soft ground, mixed ground, and especially hard rock conditions byuse of different cutting wheels (full face excavation)

▌ Central access to cutting wheel for tool replacement (back-loading system) ▌ Highly reliable steering operation due to inductive measuring system ▌ Variable flushing modes / jet systems to suit different ground conditions ▌ Superior cone crusher ▌ Heavy-duty, long-life main bearing and high torque peripheral drive ▌ Hydraulic power pack in machine can ▌ Completely remote-controlled

(All machines compatible with U.N.S. Guidance System.)

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2.2 CONTROL CONTAINER

Both the control station and the power pack modulesare housed within the same standard controlcontainer, thus facilitating the setup and relocationaround the site. For the machine, the container willbe located adjacent to the launch shaft.

The control container is a management device,where all system components can be operated andmonitored via the on-board computer system andan array of measurement devices. Three steeringcylinders enable millimeter boring precision from theoperator’s panel in the control container. Steeringmovement in any direction allows operator to correctalignment or curve the drives with the simple pushof a button.

The control room is set as close as possible to theexcavated shaft, so convenient monitoring by theoperator is continuously available.

36 GULF TUNNELING



2.3 JACKING FRAME

The jacking frame consists of hydraulic rams, which constantly push the jackingpipes into the bored tunnel. The jacking frame rests on the floor of the launchshaft. The shaft wall provides the reaction to the pipe thrusting forces by meansof a concrete thrust pad, that is cast into place after the frame is positioned.

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2.4 LASER & GUIDANCE SYSTEM



A laser guidance system was developed specifically for use with this Herrenknecht AVN machine. An electronic laser is preset to the desired grade and alignment(i.e. vertical & horizontal axis) where the target plate is hermetically sealed withinthe cutting head. This enables the laser beam to define the exact position of thecutting head at all times during the drive.

The system consists of a target unit and a laser set. Via the main processor, theactual position for the cutting head is calculated and displayed graphically on a

monitor conveniently located in the operator’s control panel. A measuring wheelalso provides continuous measurement of the tunnel length.

The computer-controlled guidance system constantly monitors all operatingfunctions of the system, with continuous data updates that enable print-outswhenever necessary. A complete time-log of each drive is a lso recorded for futurereference.

Furthermore, the guidance system provides a constant record of the following data:

▌ Date & time ▌ Total drive length (m) ▌ Line & level (mm) ▌ Vertical & horizontal angle of the cutting head assembly (mm/m)

▌ Stroke of all steering cylinders (mm) ▌ Thrust of the jacking rig (tons) ▌ Torque at the cutting wheel (bars)

38 GULF TUNNELING



2.5 MATERIAL CONVEYANCE AND SEPARATION

A feed pump located next to the fresh water tank on the surface pressurizes thefeed water to the crushing chamber/cone nozzles. The reduced excavated material

mixes with feed water to form slurry. This is pumped out by slurry pumps (locatedinside the tunnel and at the bottom of the launch shaft) towards the separationplant where materials are separated from water and clean water is returned totanks.

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The bentonite mixture acts as a lubricant and face support medium in the pipe jacking process. Through injection nozzles in the pipe, the mixture is forced into anannulus that results from a deliberate diameter difference between the tunneling machine and the concrete pipe. The resulting upward pressure reduces pipe frictionand, subsequently, the necessary jacking forces.

In any desired product pipe, a bentonite station with three ball valves may be installed. This station connects each valve to the evenly-distributed nozzles on the

circumference of the product pipe. An electrical signal from the container activates the individual pneumatically-controlled valves. A pneumatic actuator opens the ballvalve and enables bentonite to flow through the selected nozzle.

2.6 BENTONITE PUMP& BENTONITE SYSTEM

The bentonite pump and system’smain purpose is to reduce friction.The activity of the slurry pumps (usedto remove the spoil) is constantlymonitored to maintain maximumrecovery of excavated material. Thisis necessary because the spoil tendsto flow towards the pipe/soil annulus,and that increases the external frictionbetween these surfaces.

40 GULF TUNNELING

2.7 LAUNCHING SEAL



A steel launch seal, coated in flexiblepolyurethane foaming agent, will befixed onto a concrete eye properlylocated on the launching shaft wallface. The cutting head starts its boringat precisely that specified location. Thepurpose of the seal rubber is to preventany injected materials and fines fromcoming through the opened boundary.

2.8 INTERJACK STATION

Interjack stations are used for long distance pipe jacking to move the pipeline in separate sections. The skin friction rein feed resistance is divided by the number of interjack stations; consequently, the allowed jacking force of the pipe wbe exceeded.

The position and number of interjack stations in line are subject to change, depending on the soil conditions. Thinterjack station is installed at a distance of approximately 50m behind the machine with subsequent stations instaapproximate distances of 150m.

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06 HDD

42 GULF TUNNELING



HORIZONTAL DIRECT DRILLING

▌ telecommunications and power cable conduits

▌ water lines ▌ sewer lines

▌ gas lines ▌ oil lines

▌ product pipelines, and ▌ environmental remediation casings

DIRECTIONALCAPABILITIES

DEEPER/LONGERINSTALLATIONS

NO ACCESS PIT

ENVIRONMENTALSAFETY

LESS TRAFFICDISRUPTION

LOWER COSTSHORTERCOMPLETION TIMES

HDDPROVIDES

Directional boring, commonly called horizontal directional drilling or “HDD,” is a steerable trenchless method of installing underground pipes, conduits, andin a shallow arc along a prescribed bore path by using a surface-launched drilling rig, with minimal impact on the surrounding area. Directional boring is usedtrenching or excavating is impractical.

Directional boring minimizes environmental disruption. It is suitable for a variety of soil conditions and jobs including road, landscape, and river crossings. Insta

lengths up to 2,000m have been completed, and diameters up to 56” (1,200 mm) have been installed in shorter runs. Pipes can be made of materials such as Ppolyethylene, ductile iron, and steel, as long as the pipes can be pulled through the drilled hole.

Directional boring is used for installing infrastructure such as:

It is used for crossing waterways, roadways, shore approaches, congested areas, environmentally sensitive areas, and areas where other methods are costlier.

HDD is used instead of other techniques to provide less traffic disruption, lower cost, deeper and/or longer installation, no access pit, shorter completion times,directional capabilities, and overall environmental safety.

The technique has extensive use in urban areas for developing subsurface utilities as it avoids extensive open cut trenches. Uncontrolled drilling can lead to damaexisting utilities, however; so, the HDD method necessitates that the operator has complete information about the existing utilities so that he plans the whole alignma way that prevents any damage to them. Different government agencies have established legislation to ensure safe work execution and to authorize such work inenvironments. Different trenchless-technology promoting organizations have developed guidelines for this technique in order to standardize of the techniques.

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07 EQUIPMENT

44 GULF TUNNELING



SN EQUIPMENT NO MANUFACTURER CAN BE USED WITH

1 M-699C Herrenknecht AVN600(M841M), ANN800B(M751M), AVN800A(M700M), AVN1200(M1098M)



4 M-1085C Herrenknecht AVN1600(M1210M), AVN2000(M1084), AVN2400(M1290M)

5 M-1252C Herrenknecht AVN1600(M1210M), AVN2000(M1084), AVN2400(M1290M)

6 M-1568C Herrenknecht AVN600(M841M) , ANN800B(M751M) , AVN800A(M700M) , AVN1200 (M1098M)



CONTROL CONTAINERS

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SN EQUIPMENT NO MANUFACTURER EXTENSION KIT

TBM MACHINES



SN EQUIPMENT NO MANUFACTURER EXTENSION KIT

1 AVN-600M841M Herrenknecht -

2 AVN-800B M751M Herrenknecht -

3 AVN-800A M700M Herrenknecht -

4 AVN-1200 M1098M Herrenknecht 1,000m Dia

5 AVN-1600 M1210M Herrenknecht -

6 AVN-2000 M1084M Herrenknecht -7 AVN-2400 M1290M Herrenknecht -



46 GULF TUNNELING

SN EQUIPMENT NO DESCRIPTION MANUFA

SEPARATION PLAN



SN EQUIPMENT NO DESCRIPTION MANUFA

1 Sep 150 I Separation 150 m3/h Schauen

2 Sep 150 II Separation 150 m3/h Schauen

3 MAB 220 I Separation 220 m3/h Schauen

4 MAB 220 II Separation 220 m3/h Schauen

5 MAB 300 Separation 300 m3/h Schauen

6 MAB 500 Separation 500 m3/h Schauen

WATER PUMPSSN DESCRIPTION MANUFACTURER QTY

1 FEED PUMP 30KW Herrenknecht 6





6 SLURRY TUNNEL PUMP 30KW Herrenknecht 5




10 SLURRY SHAFT PUMP 30KW Herrenknecht 6

11 SLURRY SHAFT PUMP 45KW Herrenknecht 112 SLURRY SHAFT PUMP 90KW Herrenknecht 2

13 SLURRY SHAFT PUMP 132KW Herrenknecht 2

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SN EQUIPMENT NO DESCRIPTION MANUFACTURER

HDD MACHINES




1 HDD-01 HDD dr illing machine Vermeer D100X120 Series II Vermeer

2 HDD-02 HDD dr illing machine Ditch Witch JT3020 Mach 1 Ditch Witch

48 GULF TUNNELING

OTHER EQUIPMENT




1 EG-38 ELECTRICAL GENERATOR 1275KVA Caterpillar







8 EGMT-01 ELECTRICAL GENERATOR 365KVA Caterpillar

9 EGMT-02 ELECTRICAL GENERATOR 100KVA Pramac



13 EGMT-05 ELECTRICAL GENERATOR 550KVA Volvo



16 MC-11 MOBILE CRANE 160 TON Liebherr

17 MC-13 MOBILE CRANE 80 TON Deutsche Grove

18 MC-14 MOBILE CRANE 50 TON Krupp

19 - PICK UP 1 TON Nissan

20 LT-43 PICK UP 1 TON Nissan



23 PB-27 PASSENGER BUS Nissan

24 - PASSENGER BUS Ashok Leyland25 - Grout Machine P13 DMR Putzmeister

26 - Grout Machine P13 DMR Putzmeister

OTHER EQUIPMENT

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08 HEALTH, SAFETY, ENVIRONMENT

50 GULF TUNNELING

Our policy is simple—every Gulf Tunneling employee bears a responsibility towards HSE issues.



We actively involve each member to ensure accident prevention, risk management, and environmental safeguarding.

As we pursue OHSAS and ISO Certifications 9001 & 14001, we conduct our activities under an integrated system that pledges the following:

▌ Highest quality tunneling

▌ Continuous improvement in all occupational health and safety systems

▌ Minimization of environmental damage, especially pollution

▌ Control and reduction in use of energy and natural resources

▌ Optimization of latest technologies to diminish waste

▌ Strict compliance with all applicable laws, requirements, regulations, and provisions

Our proactive commitment to prevention has allowed Gulf Tunneling to maintain a record of no Loss Time Incidents (LTI) since inception.

GULF TUNNELING



G UL F TUN N E L I N G

T: +974 4465 1401 | F: +974 4467 0307

E: [email protected]

W: www.gulftunneling.com

Documents

Gulf Tunneling Company Profile