dongah geological company brochure

Dongah Geological Dongah Geological g gEngineering Co.

g gEngineering Co. g gg g

Since 1971 in Busan, Korea,

ContentsContents

I C P filC P filI Company ProfileCompany Profile

II AccreditationAccreditation

III Business ActivitiesBusiness Activities

IV Performance in OverseasPerformance in Overseas

I Company ProfileCompany Profile

Key Organizationy g

Global Network

Human Resources

Major Fields of Services

Major Construction Equipment Owned

I. Company ProfileI. Company Profile

Key Organization

CEO CEO CEO

DOMESTICDIVISION

OVERSEASDIVISION ENGINEERINGDIVISION DIVISION


Global Network

Libya

EgyptAbu Dhabi

Korea

Nigeria

y

Palau

Cambodia

Philippines

PalauQatar India

Singapore

Vietnam

:Completed Projects

: Ongoing Projects & Overseas offices


Major Fields of ServicesConstructionConstruction

Trenchless Tunneling Work

Drill & Blast Works

ConstructionConstruction

Ground Improvement

Ground Support & Structure Foundationpp

Existing Road Crossing Passage

EngineeringEngineeringGeotechnical Investigation

Design

g gg g

g

W t E i i

Water EngineeringWater Engineering

Water Engineering


Human Resources( 443 Persons)

E i Q lifi i H d( )Expertise Qualification Head(s)

PROFESSIONAL ENGINEER

GEOTECHNICAL & CIVIL ENG GEOLOGICAL SCIENCE 7ENGINEER GEOLOGICAL SCIENCE

PH. DR ENGINEERING SCIENCE 6

ENGINEER & STAFF CIVIL AND ENVIRONMENT ETC. 167

TECHNICIAN SURVEY, LAB. 63

OPERATOR VARIOUS TYPES OF EQUIPMENT 200

Q


Major Construction Equipment

( )

Trenchless Tunneling Works

Equipment Specification Unit(s)

SEMI-SHIELD MACHINE SLURRY TYPE(Φ400~2400) 30

SEMI-SHIELD MACHINE OPEN TYPE(Φ2600) 1

SHIELD MACHINE SLURRY TYPE(Φ3.53/7.83) 3

SHIELD MACHINE EPB(Φ 4 34/ 7 83/ 7 93) 3SHIELD MACHINE EPB(Φ 4.34/ 7.83/ 7.93) 3

DOUBLE SHIELD MACHINE OPEN (Φ3.55/4.55) 3



i S i i i i ( )

Drill & Blast Works


JUMBO DRILL 2-BOOM/3-BOOM 3

CHARGING CAR 1~2-BOOM BASKET 3

SHOTCRETE MACHINE 25㎥/HR 1

COMPRESSOR 600~825 cfm 3COMPRESSOR 600~825 cfm 3



( )

Ground Improvement


PILE DRIVER 135 P 7

PILE DRIVER 170 P 1

OFF SHORE PILE DRIVER 67×32×5m/66×23×3.5m 2

EARTH AUGER 300 250 240 200 HP 25EARTH AUGER 300, 250, 240, 200 HP 25

UJS MACHINE PILE MAN 1



Ground Support & Structure Foundation

E i S ifi i U i ( )Equipment Specification Unit(s)

DRILLING RIG BG 28,36,40/SD515/DBM18S 6

CASING ROTATOR SCR-1500/RT 2

OSCILLATOR MAX 3 000 mm 6OSCILLATOR MAX 3,000 mm 6

RCD MACHINE MAX 3,000 mm 5

TRENCH CUTTER Wide : 650~1,900 mmDepth : 80~100m 5

HYDROLIC GRAB Wide : 600~1200 mm 2

HYDROLIC GRAB Depth : 60m 2




( )Equipment Specification Unit(s)

JES MACHINE □ 850~1,200 mm 1



Geotechnical Investigation

( )Equipment Specification Unit(s)

S.E.P BARGE 163 / 120 TON 2

TEST APPARATUS Fully Equipped 1

TEST INSTRUMENT Fully Equipped 1

II AccreditationAccreditation

Lloyd’sy

Singapore BCA

Safety Award

II. AccreditationII. Accreditation

Lloyd’s Singapore BCA Safety Award

III Business ActivitiesBusiness Activities

Trenchless Tunneling Work

Drill & Blast Works

ConstructionConstruction

Drill & Blast Works

Ground Improvement

G d S t & St t F d tiGround Support & Structure Foundation


E i iE i iGeotechnical Investigation

D i

EngineeringEngineering

Design

Water EngineeringWater Engineering

Water Engineering

III. Business ActivitiesIII. Business Activities

Trenchless Tunneling Works

1. Shielded TBM (EPB/Slurry)

2 Pipe Jacking (EPB/Slurry)2. Pipe Jacking (EPB/Slurry)


Shield TBM

Seoul Subway Line 704Seoul Subway Line 909

Yong-Ho Sewage Treatment Line DTSS- Kimchun (Singapore)


Pipe Jacking


Drill & Blast Works

NATM

Including

Fore-Poling Fore Poling

Pipe Roof – Under Pinning Pipe Roof Under Pinning

Probingg


Drill & Blast Works


Ground Improvement

1. DSM (DCM)

2. JGP / UJS

3. Chemical Grouting

4. Vacuum Consolidation

5. PVD


DSM


Ultra Jetting SystemJet Grouting

Prefabricated Vertical Drain Vacuum Consolidation


Ground Support & Structure Foundation

◆ Diaphragm Wall

◆ Soil Nailing

◆ Sheet Piling

◆ Soil Nailing

◆ Secant Pile : CBP

◆ Case In-situ Pile

◆ DSM

◆ Geopier

◆ Geopier


Diaphragm Wall Soil Nailing

Contiguous Bored Pile Deep Soil Mixing


Geopier

Cast In-Situ Pile



1. JES (Joint Element System)

2 Di id d Shi ld M th d (DSM)2. Divided Shield Method (DSM)


JES Method Divided Shield M h dMethod


Geotechnical Investigation

1. Boring and Laboratory Test

2. Exploratory Investigation

3. Pile Load Test & Integrity Test

4. Instrumentation & Monitoring


On Shore Exploration Off Shore Exploration

Horizontal Boring


Static Pile Load Test Lateral Load Test

Osterberg Cell Dynamic Pile load test


Design

1. Ground Support

2. Ground Improvement

3. Slope Stability Assessment

4. Structure Foundation

5. Trenchless Tunneling


Water Engineering: DAF SYSTEM

1. RO System1. RO System

2 Sewage Treatment2. Sewage Treatment

3. Potable Water Treatment


Desalination ProcessDesalination Process

RO IntakeRO Intake

MF/UF DMFDesalination

Dual Media FilterMicro Filter/Ultra Filter

H.E DAFHigh Efficiency

High Efficiency


Q 10 000㎥/d

High Rate DAF System: Sewage TreatmentHigh Rate DAF System: Sewage Treatment

Q : 10,000㎥/day

Hydraulic Loading Rate : 20m/hr


Backwash

High Rate DAFFilterTM System

Effl t

Sludge ScraperBackwash

Blower

Effluent

Fl l i

Influent

Flocculation Flotation Fiber Filter

SaturatorRecycle PumpRecycle Pump

Air Compressor

Air Compressor

IV Performance in OverseasPerformance in Overseas

On Going ProjectOn Going Project

Completed ProjectCompleted Project

IV. Performance in OverseasIV. Performance in Overseas

On Going Project

Qatar

India

Korea

Cambodia

India

Singapore


Scope of work : Shield TBMSingapore Downtown Line Stage2 Contract 915

Scope of work : Shield TBM Client : Land Transport Authority Main Contractor : SK E&C


Scope of work : Shield TBMSingapore Downtown Line Stage2 Contract 913

Scope of work : Shield TBM Client : Land Transport Authority Main Contractor : GS E&C

C 912

C 913 C913用

Cashew Station

TBM Launching

Shaft

C 915

C915用

TBM Retrieval Shaft Hillview Station

C 915


Scope of work : Pipe JackingQatar Doha North Sewerage Treatment & Associated Works

Scope of work : Pipe Jacking Client : Public Works Authority Main Contractor : Ultra E&C


Scope of work : NATMIndia Rampur Hydroelectric Project (412MW)

Scope of work : NATM Client : Satlaj Jal Vidyutnigam Ltd. Main Contractor : Gammon India Pte., Ltd.


Singapore Marina Costal Expressway C 485

Scope of work : Ground Improvement Work(DSM) Scope of work : Ground Improvement Work(DSM) Client : Land Transport Authority Main Contractor : Penta Ocean

C486

C 487Contract 481

C 482C 483

C486

C485



Scope of work : Ground Improvement Work(DSM) Scope of work : Ground Improvement Work(DSM) Client : Land Transport Authority Main Contractor : Samsung E&Cg



Scope of work : Ground Improvement Work(DSM) Scope of work : Ground Improvement Work(DSM) Client : Land Transport Authority Main Contractor : Daelim E&C



Scope of work : Ground Improvement Work(DSM) Scope of work : Ground Improvement Work(DSM) Client : Land Transport Authority Main Contractor : Ssanyong E&Cy g


Cambodia The Star River Project

Scope of work : CBP and Earth Works Scope of work : CBP and Earth Works Client : Land Transport Authority Main Contractor : Ssanyong E&Cy g


Completed Project

LibyaEgypt

India

Korea

Cambodia

Philippine

NigeriaVietnam

Palau

India

Singapore


Scope of work : Micro Tunneling & NATMSingapore DTSS Kim Chuan Link Sewers Contract-01

Scope of work : Micro Tunneling & NATM Client : Public Utilities Board Main Contractor : Tiong Seng & Dongah JVg g g


Scope of work : Pipe JackingPhilippines Davao International Airport Development,PKG1

Scope of work : Pipe Jacking Client : Davao Airport Consultant Main Contractor : Hanjin Heavy Industry Co.j y y


Scope of work : NATMIndia Dhauliganga Hydroelectric Project Stage-1 Lot 1&2

Scope of work : NATM Client : National Hydroelectric Power C/L Main Contractor : Daewoo E&C


Singapore Business and Financial Centre Development

Scope of work : DSM & Secant Pile Scope of work : DSM & Secant Pile Client : BFC Development Main Contractor : Tiong Seng P/Lg g


Singapore Marina Bay Financial Centre Phase -T3

Scope of work : DSM & JGP Scope of work : DSM & JGP Client : Central Boulevard Development Pte Ltd Main Contractor : L&M Foundation Specialist Pte Ltd


Singapore Downtown Line Stage 1 C907

Scope of work : DSM Scope of work : DSM Client : Land Transport Authority Main Contractor : Taisei Co.


Singapore Amber Residences Project

Scope of work : DSM Scope of work : DSM Client : Voda Land P/L Main Contractor : Lian Beng / L.S. JVg


Egypt Damietta Port-Extension of Grand Berth No.13

Scope of work : JGP Scope of work : JGP Client : Damietta Port Authority Main Contractor : Samsung E&Cg


Singapore Pharos Condominium Development

Scope of work : Diaphragm Wall Scope of work : Diaphragm Wall Client : Guan Realty P/L Main Contractor : Tiong Seng P/Lg g


Singapore Redevelopment of Overseas Union & Change Alley Aerial Plaza

Scope of work : Diaphragm wall and Bored Pile Scope of work : Diaphragm wall and Bored Pile Client : Clifford Development P/L Main Contractor : Hyun Dai E&Cy


Singapore CAPELLA Hotel Resort Development

Scope of work : Soil Nailing Scope of work : Soil Nailing Client : Millenia Hotel P/L Main Contractor : Tiong Seng P/Lg g

Initially After


Cambodia Gold Tower 42 Project

Scope of work : CBP and Earth Works Scope of work : CBP and Earth Works Client : Yon Woo Cambodia Co. Main Contractor : Hanil E&C


Vietnam Hanoi City Complex of 65 Stories Tower

Scope of work : CBP & Diaphragm Wall Scope of work : CBP & Diaphragm Wall Client : Corails Vietnam Co. Main Contractor : Daewoo Motor Sales Co.


Palau Compact Road Project

Scope of work : Cast In-Situ Pile Scope of work : Cast In-Situ Pile Client : U.S.Army Corps of Engineers Main Contractor : Daewoo E&C

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dongah geological company brochure

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