COMPANY PROFILE http:// www.dstgroup.com/ DST, established in the early 70’s, is a firm providing engineering and contracting services. We specialize in geotechnical, rock mechanics, and environmental works and engineering. In-situ testing and drilling, and laboratory testing for soil, rock, concrete, and asphalt are complimentary services provided through our laboratory. The head office in Canada is located in Thunder Bay and the branch offices are across Canada and USA, and the head office in the Middle East is located in Lebanon. Typical projects are special deep (pile) foundation systems, deep excavation shoring systems, tunneling works, earth dams, soil improvement and stabilization systems, etc. Executed projects, with value ranging up to US$ 30 million, are in Canada, USA, Middle East (Lebanon, Syria, etc.), and Africa (Nigeria and Gambia) A staff of over three hundred personnel in Canada and over fifty in Lebanon, with technical expertise ranging from junior to 30 years of experience, is dedicated to serve the client’s needs. The staff is involved in contracting, field investigation and testing, as well as research and development in the field of our expertise. The research work is published in technical literature and conferences. DST maintains and works through its own laboratory in Canada and Lebanon. The laboratory is equipped with advanced equipment and is maintained in accordance with approved standard for testing and materials such as ASTM, AASHTO, and BS. Furthermore, DST maintains state-of-the-art in-situ testing. Typical equipment available in Lebanon is dynamic cone penetrometer, field vane testing, Menard pressuremeter, nuclear densometer, high-strain dynamic testing, non-destructive low-strain integrity testing, plate loading test, pile static loading test, anchor pull-out test, etc. At DST, we recognize the pivotal importance of the relationship between economy and integrity of construction aspects. Through each of our offices, we offer a comprehensive program for most economic and effective design and specifications that is fully backed up with on-site technical expertise for implementation and control. Our design and solution use state-of-the-art approaches and recognized methodologies that meet the specific requirements of the sites. All design aspects are supported with our full laboratory testing services and in-situ testing and investigation procedures. DST is committed to provide quality and state-of the-art services that economically meet our clients’ expectation. Projects delivered successfully on time are our goal and pride. DST’s client base varies from the private sector to the governmental departments. A wide range of projects have been carried out including residential, industrial, commercial, health center, institutional, highways, and nearshore structures. DST’s construction equipment is diversified from small size, where project space is a constraint, to large and heavy equipment. Below is a list of selected equipment for geotechnical works: 1. 2. 3. 4. 5. 6. 7. 8. 9.
Pile drilling rigs for bored piles, CFA piles, diaphragm walls, etc. Vibratory hammers for driven and extraction of piles and sheet piles Track mounted rotary drill rigs for micropiles anchors and underpinning – CMV Track mounted rotary drill rigs for grout injection - Casagrande Crawler rotary and trailer mounted drill rigs for special applications Portable rotary drilling equipment suitable for difficult access and inclined drilling Shotcrete equipments, dry mix, with varying capacity Grout stations, high-speed mixer, agitator, piston pump, up to 100 bar press. cap Miscellaneous support equipment and cranes
DST Middle East
Canada & USA
Head Office Lebanon
Head Office Thunder Bay Branch Offices
Services
Engineering
Geotechnical Works
Ottawa, Ontario Montreal, Quebec Regional, Branch Mgr
Georges Thomas Geotechnical
Building Science Highways
Material Testing
Special Works
Piling Diaphragm Wall
Anchors/Nails/ Micropiles
Services Div. Tech. Manager Geotechnical
Robin Crowley Environmental
Todd Kondrat Kenora, Ontario Branch Manager
Material Testing
Jeff Anderson
Bruno Cenedese
Sudbury, Ontario Branch Manager
Building Science
Wayne Hurley
Brad Bowman Mining
Shotcrete
Minneapolis, U.S.A. Branch Manager
Andrew Mitchel
Steve Gale
Highways
Kayla Dixor
Organizational
Chart
D S T Construction Services Geotechnical Works
Deep Foundation
Cast-in-place Bored Continuous Flight Auger (CFA) Driven Piles Precast/Prestressed Conncrete Steel Pipe H-piles Micropiles Bored Driven
Underpinning Micropiles Piles Special works
Retaining System
Soil Improvements
Bored Piles Tangent Piles
Drains Sand Drains
Secant Piles
Stone Columns
Diaphragm
Piles/micropiles
Berlina (H-beam) Wall
Grout Injection
Sheet Piles
Nails
Anchors
Preconsolidation
Nails
Dynamic Compaction
Shotcrete
Geogrid/textile
Dewatering
Slope Stabilization
Cut-off Walls Well point system Suction pump
Nails Shotcrete Geogrid/textile
Earth Structures
Tailings Dams Reinforced Walls Embankments Preconsolidation Roads Reinforcement Tunneling Nails Shotcrete Geogrid/textile
MATERIAL TESTING SERVICES
MATERIAL TESTING AND CONTROL LABORATORY TEST
DESCRIPTION
ASTM DESIGNATION
A. Soil 1.
Atterberg limits LL, PL, PI
D-4318
2.
Bulk and dry density
D-2140
3.
Consolidation test
D-2435
4.
Direct shear
D-3080
5.
Triaxial test
D-2414
6.
Unconfined compression
D-4219
7.
Hydrometer test
D-422
8.
Moisture content
D-2216
9.
Proctor test, normal
D-698
10. Proctor test, modified
D-699
11. Field density (3 points)
D-1556
12. C.B.R. test, unsoaked
D-1883
13. C.B.R. test, soaked 14. Sieve analysis, dry
D-410
15. Sieve analysis, washed
D-412
16. Sand equivalent test
D-415
17. Specific gravity
D-854
18. Falling head permeability test 19. Constant head permeability test 20. Penetrometer test 21. Carbonate content 22. Chlorides and sulfates – each
Qualitative
23. pH - soil 24. Soundness- aggregate (3 cycles) 25. Point load index test - rock 26. Compressive strength test - rock
B. Concrete 1.
C-39
2.
Compressive strength test - Cylinder and cubes Flexural strength
3.
Concrete core
C-78
4.
Schmidt hammer test
5.
Sulfate test, Chloride test
6.
In-situ coring 4” diameter
7.
In-situ coring 6” diameter
C-42
MTO Method
MATERIAL TESTING AND CONTROL LABORATORY TEST
DESCRIPTION
ASTM DESIGNATION
C. Aggregates 1. 2. 3. 4. 5. 6.
Point load index Sand equivalent Sieve analysis, dry Absorption Los Angeles Moisture content
C-735 D-2419 C-136 C-274 C-128 C-566
D. Asphalt 1. 2. 3.
Bulk density and layer identification Extraction and gradation In-situ coring
E. Steel 1. Hardness 2. Tensile strength test 3. Bending test
F. In-Situ Testing 1. Field investigation and assessment - Geotechnical, Environmental, Structural, Pavement 2. Dynamic cone test – DCPT 3. Standard penetration test – SPT 4. Field vane test – FVT 5. Pressuremeter test - PMT 6. Plate loading test 7. Permeability test 8. Water flow and migration test 9. Pile loading test 10. 11. 12. 13.
High-strain pile loading test Low-strain pile integrity test Anchor load test Deformation monitoring system
14. Special application may be designed to suit project specifics
ASTM - 617
Engineering Services - Planning - Design - Testing-
ENGINEERING SERVICES Beirut, Lebanon
PROJECT 1. Palais de Justice Bridge Intersection Adlieh, 1995
2. Hospitals & Health Centers Lebanon 10 hospitals across Lebanon (south through north),1995
3. Tripoli Entrance Bridge Tripoli, 1995
4. Salhab Center Hamra, Oct 95
5. Beit Mery Residential Bldg.
SPECIFICS
EQUIPMENT
CLIENT
Pile load test on six 800 mm bored piles up to 1400 tons capacity
- High-strain testing equipment - Dynamic load
Ashada
Geotechnical study for foundation design and service facilities
- Deep Rock Drill DR-150 - Casagrande C6 - Laboratory
Khatib & Alami
Concrete assessment and testing
- Laboratory
Makhlouf Ets.
Investigation for foundation and retaining system design
- Deep Rock Drill DR-150 - Acker
Mr. Assad, Eng.
Investigation for landslide and stability design
- Deep Rock Drill DR-150 - Laboratory
Mr. Elie Abboud, Arch.
Geotechnical study foundation design, retaining system, and slope stability
- Deep Rock Drill DR-150 - Laboratory - Acker
Public Work Ministry
Investigation and design underground tunnel 140 M. in rock/marl
- Deep Rock Drill DR-150, rig type - Casagrande C6 - Laboratory
Estephan / ICAR
Geotechnical study for 3.5 km of tunneling, and tunnel top stabilization
- Deep Rock Drill DR-150, rig type - Laboratory
Impressem Batco J.V.
Investigation of retaining system stability, long and short term aspects, materials testing, evaluation of concrete quality and seismic design
- Casagrande C6
SNAM
Beit Mery, Nov 95
6. Zahle-Wadi Alarayech Bridge Zahle, Feb 96
7. Kashkoush Tunnel Jeitta, Jul 96
8. Sands Ouzaii Tunnel Project Ouzaii, 1996
9. Permanent Shoring Sin El Fil, Nahr Ashrafieh, May 96
ENGINEERING SERVICES Beirut, Lebanon
PROJECT 10. Chiyah Infra-Structure Chiyah, Feb 96
11. Residential Development Monsef Jan 96
12. Azar Commerce Development
SPECIFICS
EQUIPMENT
CLIENT
Investigation and design of no-displacement retaining system using micropiles, and tangent concrete piles for a road stretch of 800 l.m.
- Deep Rock Drill DR-150 - Laboratory
Hourie Ent.
Investigation for rock quality and foundation design of nearshore structures
- Casagrande C6
SOKAM
Investigation for foundation retaining system design and dewatering
- Deep Rock Drill DR-150
SBS Engineering and Contracting
Building Science, assessment of concrete quality, soil investigation, and laboratory testing
- Deep Rock Drill DR-150 - Acker - Concrete coring mobile drill - Full scale load test - Laboratory
Solidere
Geotechnical investigation, bearing capacity, settlement, excavation aspects
- Deep Rock Drill DR- 150 - Laboratory
Modenco
Autostrade, Antelias, Jun 97
13. City Center Building BCD, Sept 97
14. Pine Center Furn El Chibak, May 97
15. Road Rehabilitation Kartaba
Road assessment and geotechnical evaluation
N/A
c/o Mr. Antoine AbiSamra
Akl & Jorr Assoc./ PW
Kartaba, Mar 97
16. Mouawad Village Broumana, Nov 97
17. German Community Center Beirut, Jun 98
18. Banque de Liban Hamra, Apr 98
19. Serail Jdeideh Jdeideh, Jun 98
Design of vertical open cut excavation using nails and shotcrete
- Casagrande C6
MMM Management and Bouygues
Evaluation and assessment of existing structure and foundation for expansion purposes
- Core Drill - Laboratory
Mr. Acra
Site investigation, assessment of bearing capacity and settlement
- Deep Rock Drill DR- 150 - Laboratory
Ashada
Site investigation, assessment of bearing capacity and settlement
- Deep Rock Drill DR- 150 - Laboratory
NAH
Geotechnical Works - Construction Activities -
GEOTECHNICAL WORKS Canada, USA , and Africa
PROJECT
SPECIFICS
EQUIPMENT
CLIENT
1. Port Alberni Redevelopment British Columbia, Canada
Driven Pile Foundation prestressed Concrete Piles
- Double acting diesel Hammers - Delmag
BC Port Authorities
2. Canadian Force Base Halifax - Canada
Driven Steel H-piles
- Berminghammers B300
Public WorksCanada
3. CFPF Modernization Plant Northern Ontario, Canada
Installation of concrete and steel piles
- Delmag and Berminghammers
CPFP
4. Desease Control Center Winnipeg, Canada
Installation of 600mm 900mm and 1200mm bored piles
- Mechanical rotary drill rigs and BG11 Hydraulic rig
Public Works Canada
5. Canada Post Headquarters Ottawa, Canada
Installation of 900mm and 1000mm bored piles
- Mechanical rotary drill rigs
Canada Post
6. Manitoulin Health Center Winnipeg, Canada
Intallation of 600mm expanded base piles
- Mechnical rotary rigs with reaming shells and hammer
Public Works Canada
7. Ballantyne Pier Redevelopment Vancouver, BC, Canada
Installation of prestressed concrete piles 900mm hollow stem for uplift and bearing capacity
- Rotatry drill rigs and Hera 1500 air steam hammer
Port Authorities
8. Port of Los Angeles LA, USA
Installation and testing of foundation piles 600mm – Installation by means of jetting and driving last 1015m
- Variable pile driving hammers
CH2M Hill and port Authorities
9. Industrial plant facilities Expansion South Carolina, USA
Installation of bored piles and testing – 500mm and 700mm piles with expanded base.
- Rotary drill rigs with reaming shell and hammers
Franki Piles USA
10. Banana Island Residential Complex Lagos, Nigeria
Installation of bored piles and testing – 600mm with 40m deoth.
- Rotary drill rigs Fundex F4201 with double rotary for casing and CFA auger
ITB Ingenieurs Nigeria
GEOTECHNICAL WORKS Beirut, Lebanon
PROJECT 1. Sands Ouzaii Main Tunnel
SPECIFICS
DRILL RIGS
CLIENT
Crown stabilization using 150mm micropiles
- Deep Rock Drill DR-150
Impressem Batco
Shoring system 15 m deep consisting of Berlina type wall H-pile with concrete blocks and anchors
- Deep Rock Drill DR-150 - Piling rig
Haladjian
400 mm bored piles 24 m deep for 8.5 m circular shaft
- B150e piling rig
Impressem Batco
Installation of micropile to depths of up to 20 m in a grid for earth stabilization
- Casagrande C6
Hourie Ent.
Retaining system, 600 mm O.D. bored piles 20 m deep
- B150e piling rig
Touma Engineering
Installation of retaining sheet piles, micropiles, tangent concrete piles for a road stretch of 800 l.m.
- Deep Rock Drill DR-150, rig type - B150e piling rig - ICE 815C 9 tons vibrohammer
Hourie Ent.
Installation of 400 mm sand drain piles for bridge connection
- B150e piling rig
SNAM
Installation of prestressed anchors up to 18 m long and 60 tons capacity
- Casagrande C6
SNAM / Batchy
- B150e piling rig
Bauer
- Casagrande C6
Soltravo
Haret Hreik, Dec 95
2. Thermoplast Industrial Building Dekwaneh, Aug 95
3. Sands Ouzaii Main Shaft Haret Hreik, Jan 96
4. Road Stabilization Deir Dmit to Chouf, Apr 96
5. Zahle-Ward Center Zahle, Dec 96
6. Chiyah InfraStructure Chiyah, Feb 96
7. Sand Drain Piles for Ashrafieh-Nahr Connection Nahr, 1996
8. Concrete Pile Wall Sin El Fil, Nahr, Ashrafieh, May 96
9. Tunnel Excavation Support Installation of 800 mm BCD, 1996
10. Mar Youssef / Naggiar Hospital Expansion Mar Youssef, Mar 96
bored piles
Installation of anchors prestressed up to 60 tons
GEOTECHNICAL WORKS Beirut, Lebanon
PROJECT
SPECIFICS
DRILL RIGS
CLIENT
Installation of shoring system consisting of bored piles
- Casagrande C6
Impressem Batco J.V.
21 m deep shoring system consisting of piles and anchors
- Drill rig C6
Ermitage
- Casagrande C6
Ashrafieh, Feb 97
Installation of shoring system consisting of cast-in-place walls and anchors
Tahhan Group for Trading and Contracting
14. Biakout Residential Dev.
Installation of 120 mm micropiles for earth stabilization
- Deep Rock Drill DR-150
Zetco
Retaining system using nails and shotcrete
- Deep Rock Drill DR-150 - Shotcrete pump
Modenco
Design and construction of 140m tunnel and rehabilitation techniques
- Casagrande C6 - Shotcrete Pumps
Kuwait fund support and Icar Construczioni sp.a.
Shoring system for up to 19 m deep using piles, anchors, nails, and shotcrete
- B150e - Casagrande C6 - CMV
Ashada
Stabilization system consisting of micropiles, anchors, and nails
- Casagrande C6 - B150e
Khoueir & Mouccarri Ets.
Shoring system for up to 9 m deep, of 800 mm O.D. piles, anchors, and shotcrete
- B150e - Casagrande C6
NAH
Deep foundations, piles CFA 400 mm O.D.
- B150e
Labaki Development
11. Sands Ouzaii InfraStructure Ouzaii, 1997
12. Ermitage Retaining System Tabaris, Jan 97
13. Medica Center
Biakout, May 97
15. Excavation Shoring Work Pine Center Furn El Chibak, Jun 97
16. Kashkoush Tunnel Construction and Maintenance Implementation Jeita, 96-97
17. Banque du Liban Block B, C, D, 1997/1998
18. Lot 298/303 Mezher Antelias, Sept – Nov 98
19. Serail Jdeideh Jdeideh, Sept 98
20. Military Health Club Kaslik, Dec 98
GEOTECHNICAL WORKS Beirut, Lebanon
PROJECT
21. Plot No. 24 - Zokak El Blat Underpinning Works
SPECIFICS
DRILL RIGS
CLIENT
- CMV 600/900 Rig
CEC
Shoring Works using piles and anchors for up to 8m depth.
- Casagrande C6
SBS
Shoring System for up to 16m depth using piles, anchors, and shotcrete.
- B150e - Casagrande C6
DCC
Shoring system for up to 17.5m depth using cast-inplace plates, anchors, and nails.
- CMV 600/900 Rig
Shelter s.a.l. (Lebanon)
Shoring system for up to 12m depth using piles, anchors, and shotcrete. Soil Reinforcing as pile foundation using CFA piles.
- B150e - Casagrande C6
DCC
Shoring System for up to 21m depth using piles, anchors and shotcrete. Pile foundation works.
- B150e Casagrande C6
A & M Hassoun
Pull-out load test for micropiles, design, and construction of 180mm O.D. 16m deep micropiles for foundation works.
- CMV 600/900 Rig - Casagrande C6
Hourie Ent.
Shoring system for up to 29m depth using concrete plate, recessed whaler beams, anchors & nails. Micropiles were used for the upper 6m-8m depth.
- CMV 600 - CMV 900 - Casagrande C6
Khatib & Alami
Underpinning Works Addition of underground parking below existing renovated multi-storey structure.
Beirut - Solidere, March 99 22. Kobrosli Residential Building Lot 4432 – MazraaMazraa - May 99 23. Manamah Residence Tareek Al Jdeedeh - Feb 2000 24. Medawar 77 Residential Build Gemayzeh - Feb - 2001 25. LEA II - Residential Building Lot 4227 – Mouseitbeh Unesco - March 2000
26. Verdun Twins Lot 1311 - Ras Beirut Verdun - March 2001
27. Port of Beirut Entrance Beirut - June 2001 28. Clemenceau Hospital Beirut - July 2002
DST Selected Projects Profiles
DST BROCHURES
CENTRAL BANK OF LEBANON
Client:
Central Bank of Lebanon Ashada – Entreprise general
Project value: City:
US $16.5 Million Beirut
Year Executed: 1998 Country: Lebanon
Project description: Expansion of the Central Bank of Lebanon involved the construction of three new buildings surrounded by existing multi-storey building. Each new structure consisted of several underground floors. Maximum reached depth of excavation was 19 m adjacent to existing multi-storey buildings. The work involved design and execution of the shoring and underpinning works for the three buildings - Block B, C, and D. The geotecnical works was US $1.6 million.
MANAMAH RESIDENCE BUILDING
Client:
DCC
Project value: City:
US $8.5 Million South Beirut
Year Executed: 1999-2000 Country: Lebanon
Project description: Manamah Residence is located adjacent to the Arab University and it consists of a high-rise furnished apartment for students. The soil consisted of sand deposit with some silt. Surrounding the site existed several multi-storey buildings with their foundation being on the property limit. A shoring and underpinning system was designed and implemented to enable excavation depth to be carried out to 15 m. The works involved the installation of cast-in-situ piles and multi-rows of prestressed anchors and shotcrete. Value of geotechnical works was US$1.1 million.
KASHKOUSH TUNNEL
Client:
Ministry of Energy and Water Resources (Icar Construzioni sp.a.)
Project value: City:
US $4.5 Million Keserwan - Jeitta
Year Executed: 1997-1998 Country: Lebanon
Project description: The project involved the execution of a 140 l.m. tunnel in rock to reach a water main spring source and divert the water to the main water treatment and distribution plant in Dbayeh. Works involved geotechnical investigation, design using NGI method, and execution of tunneling by means of micro-blasting. Geotechnical works value was US$3.6 million.
OUZAII - HARET HREIK TUNNEL SHAFT
Client:
Council for Development and Reconstruction (Impressem-Batco J.V.)
Project value: City:
Approx. US $7.6 Million Beirut
Year Executed: 1995-1997 Country: Lebanon
Project description: The project involved the construction of a 5.5 x 3.5 m horse shoe shape tunnel in a sand and clay soil condition. The tunnel stretch was 3.2 km and its crown overburden has reached approximately 72 m. The tunnel was designed for storm water collection. The work involved geotechnical investigation for the main tunnel, main shaft, and underground culvert. The main shaft was 8.5 m in diameter and 28 m deep connecting three tunnels. It was constructed using tangent piles with circular bracing and shotcrete layer. The tunnel was designed based on NGI method and crown stabilization by means of chemical injection and nailing. Value of geotechnical works US$4.5 million.
HYDRAULIC BACKFILL AND DREDGING LEBANON INTERNATIONAL AIRPORT
Client:
CCC Hochtief J.V.
Project value: City:
Approx. US $1.6 Million Jiyeh
Year Executed: 1996 Country: Lebanon
Project description: The work involved assessment of hydraulic fill material, near south of Lebanon, for dredging and backfill of the newly constructed landing strip at the International Airport - Lebanon. The work involved an offshore testing campaign from a jacked-up barge to evaluate the existing seabed material for dredging purposes, and its suitability as backfill for a landing strip on reclaimed land.
INFRASTUCTURE RE-HABILITATION
Client:
Council of Development and Reconstruction Hourie – Entreprise General
Project value: City:
US $11.0 Million Beirut
Year Executed: 1996-1997 Country: Lebanon
Project description: The project involved the rehabilitation of infrastructure at the Southern part of the city of Beirut. The work involved the installation of various diameter storm water drainage pipes (up to 2200 mm O.D.) in urban and heavily populated areas. Details of the work involved the installation of bracing system up to a depth of 9 m along approximately 3 km road. The bracing system consisted of either steel sheet piles or cast-in-situ piles based on the adjacent structures condition. That is using normal pile driving or vibration free pile installation. Thereafter, the work involved the installation of GRP pipes, backfilling, compaction and repavement of the roads. Our work concentrated on the geotechnical aspects of bracing, excavation, backfilling, and compaction. Geotechnical work value was US$ 1.2 million.
BALLANTYNE PIER REDEVELOPMENT
Client:
Vancouver Port Authority
Project value: City:
Cdn $16 Million Vancouver, B.C.
Year Executed: 1990-1994 Country: Canada
Project description: The work involved the rehabilitation of Ballantyne pier. Phase I of activities involved the geotechnical investigation works, designing new foundation, performing of index test piles, driving of pre-cast 910x125 mm prestressed hollow concrete pipes, and performing in-situ testing procedures to confirm design of foundation works. Phase II involved the demolition of existing structures, installation of the foundation works consisting of driven pre-cast prestressed concrete piles and the erection of the new Pier. Our activities concentrated on the geotechnical works for a value of Cdn$3.5 million.
CANADIAN FORCE BASE - HALIFAX
Client:
Public Works Canada
Project Value: City:
Cdn $3.5 Million Halifax
Year Executed: 1993 Country: Canada
Project description: The project consisted of the re-construction and re-habilitation of Canadian force base in Halifax. The work involved the installation of approximately 3200 steel H-piles by means of pile driving. Thereafter, a complex of warehousing and other facilities were constructed. Pile foundation works value was Cdn $3.5 million.
HOTEL DE VILLE
Client:
Allied Investment Group
Project Value: City:
US $6.7 Million Ras El-Nabih
Year Executed: 2002-2003 Country: Lebanon
Project description: The project consisted of a 3 underground storeys and 11 upper floors. The project is located adjacent to the University of Saint Joseph - Beirut. The project is a furnished studios for students. The geotechnical work involved the installation of dewatering system by means of six deep wells to lower the water table about 4m from existing level. Also, the shoring system consisted of piles and concrete plates with multi-level anchors for lateral support. Geotechnical works value was US$300,000.
CLEMENCEAU MEDICAL CENTER
Client:
Real Estate Plaza Co Khatib & Alami Consolidated Engineers and Consultants
Project Value: City:
Cdn $23.5 Million Beirut
Year Executed: 2002 Country: Lebanon
Project description: Clemenceau medical center occupies 2500 m2 of land with 6 underground floors and 7 upper floors. The center is dedicated for special medical treatment. The geotechnical works involved excavation and shoring for a maximum depth of 30 m adjacent to multi-storeys residential building. The total geotechnical works value was US$1.2 million.
VERDIN TWIN CENTER
Client:
Bank of Beirut and Ryadh Hassoun Bros.
Project Value: City:
Approx. US$5.5 Million Beirut
Year Executed: 2001 Country: Lebanon
Project description: Verdun Twins is a commercial office tower with 6 underground parking floors accessed by means of two car elevators from the first basement and 10 upper floors. The tower is located on an 800 m2 lot in the center town of Beirut. Maximum depth of excavation was 23 m. the geotechnical works involved cast-in-situ piles and multi-level anchors. The total value of geotechnical works was US$300,000.
BROUMANA MOUAWAD VILLAGE
Client:
Mouawad Group Triple C Co..
Project Value: City:
US$150,000 Broumana
Year Executed: 1998 Country: Lebanon
Project description: This excavation work is 19 m deep vertical cut in a cemented sand formation as part of an overall US$70 million development project consisting of Hotels, furnished apartment, residential units, and clubs. The geotechnical work consisted of installing nailing and shotcrete. Where sand layer were not cemented, micropiles were used prior to excavation in order to provide temporary stability, then nailing and shotcrete were applied.
HAMILTON MARINE DOCK DEVELOPMENT
Client:
Municipality of Hamilton Bermingham Construction
Project Value: City:
US$100,000 Hamilton, Ontario
Year Executed: 1987 Country:
Canada
Project description: The project involved the installation of steel pipe piles nearshore using diesel impact hammer. The piles are used for the construction of small dock for leisure boats. The pile installation was carried out from a jack-up barge. Pile embedment depth reached a maximum of 15 m.
MEDAWAR 77 TOWER
Client:
Shelter Group s.a.l.
Project Value: City:
US$3.2 Million Gemeyzeh
Year Executed: 1999 Country: Lebanon
Project description: Medawar 77 Tower consisted of 5 underground floors as parking and 13 upper floors. Total depth of excavation reached 17.5 m adjacent to existing strucures with no foundation. The water table was present at 12.5 m. dewatering was carried out using pump pits and water pumps. The shoring work was carried out with a maximum allowed thickness of shoring no exceeding 200 mm in order to maximum the use of the small size plot (450 m2). Micropiles and cast-in-situ concrete plates were used with anchors for lateral support. The value of geotechnical works was US$200,000.
KHANNAK BRIDGE - TRIPOLI
Client:
Somac Group s.a.r.l.
Project Value: City:
Approx. US$4.5 Million Tripoli
Year Executed: 2003 Country: Lebanon
Project description: The shoring work consisted of reinforcing a sloped terrain reaching about 30 m in altitude. Scattered multistorey structures existed within the sloped area. The shoring consisted of multi-level soil nailing and shotcrete. The treated wall height ranged up to about 8 m high and 60 m in length along the newly developed Khannak bridge structure. The soil consisted of an upper clayey sand deposit with a conglomtrate of boulders deposited over a highly weathered bedrock layer with numerous cavities. The value of geotechnical works was approximate US$100,000
1331 PARK AVENUE - BCD SOLIDERE
Micropiles
Grout Blanket Curtain Wall
Client:
Lona I Investment s.a.l.
Project Value: City:
Approx. US$7.5 Million Beirut
Year Executed: 2004 Country: Lebanon
Project description: The project consists of a 7 seven storeys commercial building with 3 underground parkings in the central district of Beirut. The depth of excavation is about 2.5 m below ground water table. The shoring work consisted of reinforcing concrete plate with recessed whaler beams and multi level of anchors and nails. Maximum depth of excavation was about 13.75m. The soil consisted of an upper clayey sand deposited over a highly weathered marlstone bedrock layer with numerous cavities. Curtain wall and grout blanket was constructed for water cut-off. The value of geotechnical works was approximate US$350,000
LOT 7970 KFARZEBIAN FAKRA CLUB
Shotcrete
Drains
Client:
Mr. Samir Badro
Project Value: City:
Approx. US$1 Million Fakra
Year Executed: 2004 Country: Lebanon
Project description: The project consists of a multi storeys residential building with underground parkings in the central park of Fakra Project in Kfarzebian. The depth of excavation is about 10 m below existing road level. The shoring work consisted of reinforcing shotcrete plate with recessed whaler beams and multi level of nails. The soil consisted of an upper clayey sand deposited over a highly weathered claystone bedrock layer. During winter season, water seepage is of concern. The shoring system ws performed to maintain the excavation open during winter snowing season.
LOTS NOS. 861- 868 KFERTAY FAKRA CLUB
Client:
Nassar Engineering Mr. Maher Abu Ghazale Summer Residence
Project Value: City:
Approx. US$1.5 Million Fakra
Year Executed: 2004 Country: Lebanon
Project description: The project consists of a multi storeys residential building with underground utility room, swimming pool, and parking in the central park of Fakra Project. The depth of excavation is about 12 m below existing road level. The shoring work consisted of reinforcing shotcrete plate with recessed whaler beams and multi level of nails. The soil consisted of an upper clayey sand deposited over a highly weathered marlstone and claystone bedrock.
HIGHWAY ACCESS EXTENSION PROJECT SEOUL- S.KOREA
Project Value: City:
Approx. US$5.5 Million S.Korea
Year Executed: 2002 Country: S.Korea
Project description: The project consists of extension and rehabilitation of an existing bridge. The works was carried out in J.V with Kyung-In in South Korea. It involved the installation of 600 mm cast-in-situ steel cased pile to a depth ranging up to 26 m. The piles were installed from a jacked-up barge. The pile installation was carried out using a double rotary system whereby the casing is installed permanently.
PORT OF BEIRUT – MAIN GATE ENTRANCE BEIRUT, LEBANON
Pullout Load
Micropile Installation Micropile Grouting
Client: Consultant:
Entreprise Hourie Dar Al Handasah
Project Value: City:
Approx. US $0.75 Million Beirut
Micropile Installation
Year Executed: 2000 Country: Lebanon
Project description: The project involved the design and execution of a Pile foundation on landfill site to support the main gate entrance structure. The landfill consisted of about 10 m of organic dump (garbage) deposited over natural soil layer of silty marl formation with interlayers of marlstone. The foundation consited of 200 mm OD micropiles to a depth of 15 m. The piles capacity was confirmed by means of a static load test. The works was supervised and confirmed by the consultant.
RESIDENTIAL DEVELOPMENT – PLOT 734 ANTELIAS LEBANON
Large concrete columns supported by soil anchors
Foundation Micropiles
Client:
J.V. Mouawad and Moubarak
Project Value: City:
Approx. US $1.0 Million Antelias
Year Executed: 2005 Country: Lebanon
Project description: The project involved the design and execution of a shoring system to support a multi-storey residential building with a large front swimming pool. The shoring system involved the construction of large concrete columns supported on micropiles foundations and laterally supported by two levels of anchors. The soil consisted of lightly cemented sandy formation with with loose blocks of rock mass. The concrete columns were constructed due to the existing height that was not feasible nor economical to reach with construction equipment. The micropiles served both for foundation and lateral support purposes. The face of excavation was covered with structural shotcrete.
ALMAZA BREWERY VESSEL TANK EXPANSION
Static Load Test – 80 tons Micropile Installation – 3m overhead restriction
Client:
Almaza Brewery sal
Project Value: City:
Approx. US $0.75 Million Beirut
Year Executed: 2006 Country: Lebanon
Project description: The Brewery tank extension involved reinforcing of existing structure and foundaton. The foundation reinforcement was carried out by means of installation of cast-in-situ concrete micropiles installed to depths ranging up to 14 m as underpinning of the existing foundation. The structural asects were carried out by means of concrete jacketing of the existing concrete columns in accordance with the additional load requirements. Static load test programme was carried out on the micropiles to ensure the required saftey of design and optimize the piles capacity. An overall of 157 micropiles was installed successfully.
KABALAN RESIDENTIAL DEVELOPMENT BEIRUT LEBANON
Non cohesive Soil
Installation cast-insitu Piles 600 mm
Client:
Kabalan & Sons
Project Value: City:
Approx. US $3.0 Million Beirut
Year Executed: 2005 Country: Lebanon
Project description: The project involved the design and execution of shoring system consisting of along one side 600 mm OD piles coupled with multi-levels of anchors and nails with a shotcrete covering a sloped open cut to a depth of 16 m; the opposite side consists of micropiles with multi-level of anchors and nails to a depth of 12 m; adjacent to the building where zero thickness of shorig work onto the property was required, it consisted of underpinning works using injected micropiles coupled with multi-levels of anchors and shotcrete.
LONA I – RESIDENTIAL BUILDING BEIRUT LEBANON
CFA Installation Procedures
Pile Layout Plan
Client:
DCC Construction and Development sarl
Project Value: City:
Approx. US $3.5 Million Beirut
Year Executed: 2001 Country: Lebanon
Project description: The project involved the design and execution of both Pile foundation and shoring system consisting of 400 mm O.D. cast-in-situ piles coupled with multi-level of strutting. The foundation cnsisted of reinforcing the ground with 400 mm O.D. cast-in-situ piles staggered across the site to meet the load distribition and non-homogeneous soil conditions. The sub-base formation consisted of a part of the site having very loose sand deposit whereas the other part consisted of compact sand considtions. The site shows the pile distribution across the site for foundation purpose.
MILITARY BEACH RESORT PHASE I AND II KASLIK, LEBANON
Continuous Flight Auger Piles 400 mm OD Concrete Pumping after Pile Drilling completed
Client:
Labaki Development and Contracting sarl
Project Value: City:
Approx. US $3.5 Million Kaslik
Year Executed: 1999 Country: Lebanon
Project description: The project involved the design and execution of a Pile foundation on reclaimed land near shoreline for an indoor recreational building, indoor swimming pool and a private villa for the commander of the Lebanese army. The reclaimed soil consisted of non-engineered soil backfilled without any quality control. The piles lconsisted of 400 mm OD CFA piles with length varying up to 15 m depth.
SCHOOL 30 KUWAIT FUND PROGRAM BEIRUT LEBANON
Client:
Abniah sal
Project Value: City:
Approx. US $6.0 Million Beirut
Year Executed: 2005 Country: Lebanon
Project description: The project involved the design and execution of shoring system consisting of 400 mm O.D. castin-situ piles coupled with multi-level of anchorsm on one side. The other side involved stabilization of sandy soil by means of multi-lvel nails and a shotcrete layer covering the face of excavation. Total depth of excavation reached 14 m over an area of 7,500 m2 of constracution land. The soil consisted of loose silty sand material deposited over a layer of limestone bouldery formation.
DST GROUP http://www.dstgroup.com/
Lebanon
Canada
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Third Floor Lastra Building Al Midan Street, Dekwaneh, Lebanon Tel / Fax: 961-1-688789/98 Cel: 961-3-693 170
