Route 2020 Metro Dubai Construction Details

Metro Route 2020 Dubai – Construction $2.9bn

IncludedRoute, Programme GraphicTunnelling, Stations & ViaductDetailsLengths

Viaduct 10.5 kmTunnel 4 km

StationsUnderground 2 Nr.Elevated 5 Nr.

Capacity 46,000 passengers per hour.Maximum wait time will be 100 seconds and there will be 15 trains

Tunnels & Underground Stations

Viaduct

3D image to show Sequence, Method & Plant.

David H Moloney

21st July 2016

ⓒ David H Moloney

Project Execution Plan. Details how the Metro will be

constructed, and how the progress, safety and quality will be

monitored and controlled. Also the measures to ensure that

the site is environmentally friendly

ContentsWork Categories as per CESMM

Introduction

Metro Route 2020

Red Line Green Line

Route

ⓒ David H Moloney

Route Animation

GreenCommunity

DubaiInvestmentPark

Jebel Ali Port

Palm Jebel Ali u/c

Ibn Battuta Mall

Harbour &Tower Station

Tunnel

ⓒ David H Moloney

Programme Time ChainageThe chart has two axis: one for time and the other for location

A legend explains meaning of the colours, symbols and line types

Programme Visualisation

Tunnel

Viaduct

Viaduct

ⓒ David H Moloney

Schematic longitudinal Profile

Principal Quantities

Schematic Longitudinal Section ⓒ David H Moloney

Cost Comparisons of various Metro Projects

Dubai Route 2020UAE (To Start)

Red Line North DohaQatar (In Progress)

Red Line South DohaQatar( In Progress)

Metro NorthDublin

(Proposed)

Dart UndergroundDublin (Proposed)

Overall Cost €2,450 million €1,803 million €1,500 million €2,400 million

Cost per km €158 million /k m €140 million / km €108 million / km €134 million / km

Overall Length 15.5 km 13 km 14m 18 km 5 km

Tunnel 4 kmSingle Tunnel

11.6 km Twin Tunnels

14 kmTwin Tunnels

7.5 km Twin Tunnels

5 km Twin Tunnel

Cut & Cover 0 2.7 km 0

Elevated 10.5 km 2.2 km 0

Road Level 0 5.5 0

Stations 7 Nr. 7 Nr. 5 Nr. 14 Nr. 3 Nr.

Capacity 13,000 Passengers per hour

19,800 Passengers per hour

?

ⓒ David H Moloney

Advantages of Light Rail Systems Benefits of Metro to commuters

1. Time saving for commuters 4. Reduction in accident

2. Reliable and safe journey 5. Reduced fuel consumption

3. Reduction in atmospheric pollution 6. Reduced traffic congestion

Contractor’s General Items

Contractor’s Temporary Site Facilities

ⓒ David H Moloney

Quarry & Aggregate Production

ⓒ David H Moloney

Brief Description

Rock is blasted free from the quarry

face and fragmented so it will fit into

the primary crusher. Any oversized

rock is broken with a excavator and

hydraulic Rockbreaker.

At the Crushing and screening yard

the fragmented rock is crushed and

screened into various size ranges.

Concrete Batching Plant David H Moloney

Concrete batching plant comprises -concrete mixer, control cabin, silos for cement and fly ash, aggregate bins and conveyor belt system to feed the mixer. Also aggregate storage bays and water storage tanks. The mixing is computer controlled and has a dynamic screen display, showing the process. Material storage capacity to match two days concrete production

Reinforcement Cutting & Bending Yard David H Moloney

ⓒ David H Moloney

Reinforcement in 12 m lengths. Delivery in 3 ton Bundles Reinforcement cut to length by Shearing Machine

Reinforcement Bent to Shape by Bending Machine Reinforcement that is cut and bent is Bundled for delivery to work site

Site Hoarding examples

ⓒ David H Moloney

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Weighbridge & Sheeting Access

ⓒ David H Moloney

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Wheel Wash Drive-through

ⓒ David H Moloney

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Dewatering

ⓒ David H Moloney

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Brief Description

Construction dewatering is the removal or drainage of

groundwater and or surface / rain water usually by

pumping to keep the works dry.

Dewatering

ⓒ David H Moloney

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Dewatering by Wellpoints

ⓒ David H Moloney

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Dust Suppression

ⓒ David H Moloney

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Traffic Management

ⓒ David H Moloney

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Brief Description

Traffic management plans are necessary when working on or beside roads

Traffic Management – Work on Median

ⓒ David H Moloney

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Temporary Electricity Supply & Tower Lights

ⓒ David H Moloney

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Welfare Facilities

ⓒ David H Moloney

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Toilets – Washing

Canteen, Drying Room, Toilet & Generator

HSE

Existing Underground Utilities

ⓒ David H Moloney

Ea

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Brief Description

Before digging

establish the location

and route of

underground utilities.

Locator to find Utilities

Spray Paint to mark pavement

Existing Underground Utilities & Overhead Cables - Safety Measures

ⓒ David H Moloney

Ea

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Trench - Safety Measures H

ealth,

Safe

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Envir

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Trench - Safety Measures

ⓒ David H Moloney

Health,

Safe

ty &

Envir

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Safety Precautions

Environmentally Friendly Site Air, Noise, Water & Soil Pollution

Segregation of Waste H

ealth,

Safe

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Envir

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Segregation of waste for proper disposal and recycling. Less waste goes to landfill and hazardous waste is treated to make it safe.

Colour Code for Skips & Bins

Water Pollution PreventionG

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HSE Monitoring & Reporting - Dashboard Dashboard is a single page, graphical representation of

current HSE Issues and historical trends

Emergency Phone Numbers & Response

Geotechnical

Diaphragm Wall Construction - Sequence, Plant & Methods

Diaphragm Wall Grab

ⓒ David H Moloney

Brief Description

Shown is the Sequence,

methods and plant to construct a

diaphragm slurry underground

wall.

Diaphragm Wall Construction - Sequence, Plant & Methods

ⓒ David H Moloney

Earthworks

Tunnels & Underground Stations

3D image to show Sequence, Method & Plant.

David H Moloney

ⓒ David H Moloney

Underground Station Excavation

Underground Station Construction

Rock - Excavability

The excavability of rock depends mainly on the rock strength and the layer thickness. This diagram shows excavation methods for rock of various strengths and thicknesses, with a free face.

ⓒ David H Moloney

Concrete

Concrete Full Scale Trial Castings of Pier

ⓒ David H Moloney

Brief Description

The full-scale trial casting(s) shall

demonstrate/document that all

requirements to the concrete and the

execution of the work are fulfilled

simultaneously using the actual

methods and performed by personnel as

for the future production.

Co

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BIM 3D Model Shutter Fibreglass

Concrete Full Scale Trial Castings of Bridge Deck

Brief Description

The full-scale trial casting(s) shall

demonstrate/document that all

requirements to the concrete and the

execution of the work are fulfilled

simultaneously using the actual

methods and performed by personnel as

for the future production.

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Fresh Concrete Properties Tests

Air Content, Consistence, Density, Initial and Final Setting Time, Temperature

and Bleeding

Chloride Ion Content

Hardening and Hardened Concrete Properties Tests:

Density and Compressive Strength for 1, 3, 7, 14 and 28 Days

Concrete Core Compressive Strength

Tensile Splitting Strength

Modulus of Elasticity

Heat Development

Chloride Migration Coefficient (28 Days)

Reinforcement Cover Measurement Survey

Trial for Waterproofing to Bridge Deck

ⓒ David H Moloney

Brief Description

. The trial for the deck waterproofing

shall demonstrate/document that all

requirements to the waterproofing and

the execution of the work are fulfilled

simultaneously using the actual

methods and performed by personnel as

for the future production.

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Trial for Waterproofing to Bridge Deck - TestsC

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Vibrating Concrete

ⓒ David H Moloney

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Tunnel Wall Segments Casting

Clean Mould

Lift Precast Segment out of mould

after 18 hours.

Reinforcement

fabricate

Reinforcement

into Mould

Concreting

Segment Storage

Cycle Time 24 hrs

ⓒ David H Moloney

Tunnel Precast Segments

Precast Yard for Tunnel Segments

Viaduct Construction David H Moloney

ⓒ David H Moloney

Viaduct Construction David H Moloney

ⓒ David H Moloney

Viaduct Construction David H Moloney

ⓒ David H Moloney

Viaduct Segments Casting David H Moloney

Casting Method

The concrete segments are manufactured

using the short-line, match-casting method.

Match-casting is when sequential segments are poured against the previous cast segment, this ensures that the segments will fit perfectly on site.

ⓒ David H Moloney

Viaduct Segments – Short-line, Match Casting Method David H Moloney

Precast Yard for Viaduct Segments

Viaduct Segments Launching

ⓒ David H Moloney

Bridge Construction Sequence David H Moloney

Bridge Construction Sequence David H Moloney

Piling Surcharge Abutments

Remove Surcharge AbutmentsDeck centre

Post-tensioning Fascia & Waterproof deckComplete Bridge

PiersOverview

Deck Ends

Images with Schematic 3D view, Photos & Timeline

ⓒ David H Moloney

Post-tensioning Bridge Deck David H Moloney

Falsework & Shuttering for Insitu Ramp David H Moloney

Large Floor Concrete Pour

Reinforced Wall Construction SequenceDavid H Moloney

ⓒ David H Moloney

Reinforced Structure Construction Sequence David H Moloney

ⓒ David H Moloney

Going Underground

ⓒ David H Moloney

Cut & Cover Tunnel Construction

Sequence -Traffic and utilities are diverted, excavate trench, construct & backfill to bury.

To prevent the faces of the excavation from collapsing, different measures are used –

batter the faces, diaphragm walls, secant piles or a combination of soil nailing and

shotcreting.

Ramp Construction

Sequence -Traffic and utilities are diverted, excavate, construct and backfill to sides.

To prevent the faces of the excavation from collapsing, different measures are used – batter

faces, diaphragm walls, secant piles or a combination of soil nailing and shotcreting.

ⓒ David H Moloney

Structural Steel

Elevated Stations

Elevated Stations

Elevated Stations

ⓒ David H Moloney

Elevated Stations

ⓒ David H Moloney

Inside Stations

ⓒ David H Moloney

Passenger Bridge

Roof Covering

Roof Covering

Roof Covering

View of Metro from Burg Khalifa

ⓒ David H Moloney

Piling

Piling Construction - Plant & Methods

Brief Description

Piling Plant, Equipment and Material;

Crawler Crane, Piling Hammer, Temporary Casing,

Piling Rig, Concrete Pump, Concrete Mixer Trucks,

Tremie Pipe and Reinforcement Cage

Pili

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Piling Construction - Plant, Methods & SequenceP

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Piling Construction - Plant & MethodsP

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Piling Construction - Vertical PilesP

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Pile Load Test

ⓒ David H Moloney

Pili

ng

Brief Description

A jack is used to load the pile in steps and

gauges measure any settlement.

Secant Pile Construction - Sequence, Plant & Methods

3D image to show Sequence, Method & Plant.

For construction details see my YouTube Channel

ⓒ David H Moloney

Brief Description

Shown is the Sequence,

methods and plant to construct a

secant pile underground wall.

Secant Pile Construction - Sequence, Plant & Methods

Sheet Pile Shaft Temporary to Support Excavation

Drive Sheet Piles Excavate & install bracing

Construct Concrete Structure Backfill, remove bracing & sheet piles

ⓒ David H Moloney

Sheet Pile Shaft Temporary to Support Excavation

ⓒ David H Moloney

Roads & Paving

Asphalt Batching YardR

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Pa

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Road Construction Sequence Animation

Railway

Tunnel Fit-out Rail, Electricals, Ventilation

Tunnel Fit-out

Install Sleepers & Rails

Concrete Batching Train for Floor Slab

Drilling Machine for Utilities Brackets

Commissioning, Testing, Handover & Opening

Purpose to test and ensure that everything (e.g. trains, escalators, lifts, ticket barriers) works as it should.

ⓒ David H Moloney

Commissioning, Testing, Handover & Opening

Purpose to test and ensure that everything (e.g. trains, escalators, lifts, ticket barriers) works as it should.

ⓒ David H Moloney

Tunnel

Tunnel Boring Machine (TBM)

Tunnel Boring Machine (TBM)

HERRENKNECHY AG

Tunnel Boring Machine (TBM)

Tunnel Boring Machine (TBM)

Tunnel Boring Machine (TBM)

Cutting Head rotates to Dig

Excavated material removed by conveyor belt

Lifting muck to surface with skip

Placing Concrete Segments

Tunnel Boring Machine (TBM)

Cutting Head rotates

7 nr. Precast segments form rings that line the tunnel Excavated material removed

by conveyor belt

ⓒ David H Moloney

Miscellaneous Works

Fencing

ⓒ David H Moloney

Sequence of Construction

Clear Scrub & Grade ground

Fix Corner & Strainer Posts

Fix Intermediate Posts

Fix Line Wire, Chain-link & Razer wire

Concrete ground beam

Administrative

Progress Monthly, Monitoring & Reporting - DashboardDashboard is a single page, graphical representation of current

progress and historical trends

Histogram Charts for Resources & Outputs

Concrete, Manpower, TBM,

Manpower per Discipline Concrete per Location

Numbers for each month of the Project Quantity for each month of the Project

ⓒ David H Moloney

Plant & Equipment List & Worker’s Job Titles

ⓒ David H Moloney

Organogram

Brief Description

Shown are the line and

lateral relationships

between the various team

members and their relative

position in the site

organisation.

Quality Assurance

Quality Assurance Dashboard Dashboard is a single page, graphical representation of

current statistics and historical trends

Setting out & Surveying

Setting out & Surveying

Setting out & Surveying

Pavement Art

Production by David H Moloney

See my YouTube channel for further details

My YouTube Channel link: https://www.youtube.com/channel/UCeJR9J7svhBd-C0ZoAH2fhQ

ⓒ David H Moloney