moving london forward - crossrail
DESCRIPTION
London UndergroundTRANSCRIPT
Hugo Axel-Berg
Manager of Engineering
West Central Area
Crossrail-Moving London
Forward
Target Zero has three
guiding principals:
We all have the right to
go home unharmed
every day
We believe that all
harm is preventable
We must work together
to achieve this
Crossrail Health and Safety
£14.8bn funding
118 km railway
37 stations
8 new underground
stations
42 km new tunnels
8 million cubic metres of
spoil
140 main works
contracts
Europe’s largest infrastructure project
Central section
Royal Commission for London in 1904
Central London Rail Study 1989
Private Bill prepared for November 1989
Rejected in May 1994
Hybrid Bill deposited on 22 February 2005
Royal Assent awarded in June 2008
Opening
2018
Key dates
£42bn+ benefits
14,000 employed
24 trains per hour Journey times cut by up to 50%
200 million journeys per year
The benefits
Progress – delivering a railway
13 14 15 16 17 18
Railway Systems
Stations
Rolling Stock & Depot
NR Surface Works
Te
st a
nd
Com
mis
sio
n
Tria
l Opera
tion
Crossrail TOC
2012
Civils and
Tunnelling
National impact
Supply chain impacts
• 75,000 opportunities for businesses
• Supporting 55,000 FTEs
• 43% of suppliers winning work are
outside London and the South East
• 62% are outside London
• 58% are small and medium sized
businesses.
• 97% of our contractors are based in the
UK.
Crossrail tunnels
6.2m diameter tunnels
42 km tunnels under London
250,000 tunnel segments
6 million tonnes of spoil
3.81m
VICTORIA LINE CROSSRAIL
6.2m
Third Party Underground Assets
Ground conditions in London
Earth Pressure
Balance TBM
Slurry TBM
Tunnelling boring machines
-20
-18
-16
-14
-12
-10
-8
-6
-4
-2
0
4166 4266 4366 4466 4566 4666 4766 4866 4966
CEN
TREL
INE
SET
TLEM
ENT
(mm
)
EB TBM CHAINAGE
0.7% 0.7% 0.7%0.5%0.7%
TCR
Wes
tern
Tic
ket
Hal
l
TCR Station
TCR WTH
BOS - TCR
LU08, LU09: 0.7% VLCZ
Great Marlbrorough St: 0.7% VLCZ
TCR 0.5% and 0.7% VLCZ
Measured vs Predicted TBM Settlement
Drive X (TCR)
Tottenham Court Road
Example: Tottenham Court Road
TCR Coordination with Ada
Below Ground Flythrough
2014 breakthroughs
TBM Progress Highlights
37.5KM
86%
Ada & Phyllis complete
Jessica 100% & Ellie 80% Complete
Elizabeth Heading for Liverpool
Street & Victoria ready to restart
Best Performing TBM: Ellie: -
completed 72m in a day!
Complex station configurations.
Created using sprayed concrete
Eastern Running
Tunnels
Sprayed Concrete Lining Construction
Crossrail SCL design
• This design option applies to most
Crossrail underground SCL tunnels
(apart from Farringdon Station)
• All short-term ground, water load and
any other surcharges apply to the
primary lining in the short-term
analysis
• Additional long-term ground load is
shared between the primary and the
secondary lining in the long-term
analysis.
• Long-term water load solely applies to
the secondary lining
x% GL
100% H20
Short term loads Long term loads
x% GL
100% GL 100% H20
Ground Settlement
Compensation
grouting injected
to minimise
ground
movement
60 km of TAMs
are installed to
protect buildings
across the route
Compensation Grouting
Principles of compensation grouting
Ground Movements
-SCL Compensation Grouting
4D Showreel
Stepney Green Cavern
Tottenham Court Rd
46% Farringdon
33%
Eleanor St Shaft
45%
Enlargement Progress
Over 6.8KM
SCL Total Progress:
63%
Fisher Street 71% Bond St
48%
Liverpool St
55%
Whitechapel 75%
SCL Highlights
Crossrail has a risk management process which aims to
Support delivery
Provide assurance
Inform decision making
The risk management process is
Comprehensive (involves the whole of the organization)
Consistent
Combines qualitative and quantitative aspects
We have extended this approach to Tier 1 Contractors
Risk Management at Crossrail - Overview
Infrastructure Project Risk Profile
Changes as Activities Change
Construction
Risk
Development
and Planning
Risk
Buying and
Mobilisation
Risk
Management Cost Risk
Property Cost Risk
Bringing
into useOperating risk
Fare Box Revenue
Rolling Stock Build Risk Rolling Stock Opex Risk
Decommissioning
Risk
Taxation
Other Revenue
Why do Risk Management?
Delivery
• Identify and mitigate threats to the
achievement of objectives
• Head off issues before they impact
Commercial
• Inform allocation of risk between
parties, through contracts
Engineering
• Support the engineering process
by the formal identification,
assessment and mitigation of
engineering risks
• Monitor the mitigation of risk
throughout the design process
1. Support Delivery 2. Provide Assurance 3. Inform Decision Making
Finance
• Understand ‘true cost’ picture taking
into account exposure to risk and
uncertainty
• Support investment decisions
through assessment of risk impacts
Risk
Management
Risk Management Objectives:
1996 report 2000 report Heathrow Express Collapse – Presentation to Crossrail - Bill Grose
A key document – Code of Practice for Tunnelling Works by
The Association of British Insurers and
The British Tunnelling Society
Compliance reviewed and assessed by Insurance Industry
Joint Code of Practice for Risk Management of
Tunnelling Works in the UK (JCOP)
Insurance Risk
Management
Swiss Re and Zurich co-lead the OCIP
Both have experienced chartered engineer
consultants
Validation of JCoP, H and S and Risk Management
structure for 28 supporting insurers
Review of perceived higher risk areas such as SCL,
and Instrumentation/ Monitoring
Ensuring continuing compliance with JCoP in
Construction Phase
Insurer Risk Management
Equipping a workforce - TUCA
Excavated material
On a tonne/km basis 85% of excavated
material is transported by rail or
water
Wallasea Island 2016
Under Platform Services Area
Station Structure
Rolling Stock
Paddington
Track Systems
Traction Power & Overhead Line
Equipment
Emergency Walkway
Gravity Drainage
HV Power
LV Power
Tunnel Lighting
Communications& Control
Radio Systems
Signalling
Pla
tfo
rm D
oo
rs
Tunnel Ventilation
Pumped Drainage
Pump
Smoke Extract
Fire DetectionStation
Ventilation
Station Lighting Signage
Passenger Information
CCTV
PA / VA
He
lp P
oin
t
Fire Main Station Cable Management
System
Station Systems
Automatic Fare Collection
Lifts & Escalators
Station Management
System
Station Heating, Cooling and Air
Conditioning
Route Wide Railway Infrastructure
Route Control Centre
Back Up Control Facility
Bulk Supply Points
Auto Trans-former Sites
Depots & Stabling
Railway and Tunnel Systems
Delivering the Asset Model
Platform Cross Section
Central stations
9 central stations
Main contracts awarded
Work at stations is well underway
Property: over-site developments
Oversite Developments
Maidenhead
Heathrow terminals
Shenfield
Stratford
Paddington Crossrail
Abbey Wood
Liverpool St. Crossrail
2016 2017 2018 2019 2020
Dec May Dec May
Stage 2: Heathrow to Paddington (high level)
Stage 1: Liverpool S. (high level) to Shenfield
Stage 3: Paddington (low level) to Abbey Wood
Stage 4: Paddington (low level) to Shenfield
Dec
Stage 5: Maidenhead / Heathrow to Shenfield / Abbey Wood
Opening strategy
Crossrail: Moving Industry Forward
Thank You