SNC-Lavalin Atkins 16x9 Corporate Overview - CERN Indico

CERN Future Circular Collider

CERN-Atkins meeting 15 January 2021

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Global reach

› An established and balanced footprint

› Greater “at-scale” European and

Middle Eastern presence

~16,000

employees

~12,000

employees

~17,500

employees

~4,500 employeesAmericas

Europe

Middle-East

& Africa

Asia Pacific

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Ground Engineering and Tunnelling

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› 345 strong staff

› Balanced team of engineering

geologists, geotechnical engineers

and other specialists

› 16 UK offices

› …with global reach

Hub Offices

Ground Engineering and Tunnelling

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Tunnelling

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Image courtesy of Crossrail

CERN Beam Dump

Partial Widening of Tunnel

Features Retention of Existing Unreinforced lining

6m of Widened Tunnel

Compound Radius Required

3.0m Internal Diameter

Services Tunnel Design

Specifications

Preliminary Options Development

Preliminary Option Costing

Construction Supervision


CAPEX £14.8bn

Crossrail, London, UK

Features 100km of track

10 New & 30 Upgraded Stations

21km of Twin-bored Tunnels

6.20m Internal Diameter

Services Project Management

Tunnel, Depot & Station Design

Architectural Common Design Elements

Rail Systems Interfaces

Cost Estimating & Bills of Quantities

Risk, VE & Lean Processes

Data collection & statutory consents

Environmental Impact Assessment

Stakeholder Engagement

Contract Procurement Support

Construction Programme Development

Asset Protection


CAPEX £21.4bn, 230km of track, 400kph design speed, 400m long trains, 18tph per direction

High Speed 2 , UK

Services

Professional Services Contracts (2012-17)

Preliminary/Reference Design (90km)

Environmental Services (EIA & ES) (70km)

Route-wide mass haul strategy

Route-wide utilities design and coordination

Hybrid Bill support through Parliament

Route-wide Off-site Build Design, structures

Route-wide Historic Environment Strategy

Delivery Strategy, BIM Strategy & WLC/V

Engineering Delivery Partner (to 2026)

Overseeing £8bn Main Works Civils, £3bn Stations Contracts,

£1.7bn Rail Systems & £900m Enabling Works contracts

Engineering Design Management

Environmental Management

Design Assurance & BIM Compliance

Planning Consents & Stakeholder Liaison

Systems Interfaces & Integration

Construction Management

Built Environment Civils/Structures (to 2023)


CAPEX £21.4bn, 25km tunnel, deep shafts, river foreshore worksites, surface interface structures

Thames Tideway, London, UK

Services

Detail Design and construction phase services for contracting

JV on West Contract

Independent Cat III checking services for Central and West

Contracts

Ground InvestigationDigital and Data Management

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Tunnel Project in London, UK

› Leapfrog Works was used to rapidly develop a

ground model for a tunneling project in London.

› Borehole data was quickly brought into the model

and surfaces created.

› Infrastructure data could then be added allowing

for investigation of which strata any new tunnels

would be located.

› The amount of time needed to develop geological

models was less than for a traditional approach.

› Atkins was able to model geological strata

efficiently in 3D and as the model was dynamic,

these layers could be updated automatically when

more borehole data was added to the model.

› Visualization and drawing tools allowed for

efficient presentation of the model to others,

including using the free viewer software which

could be shard with the Client

East-West Rail Ground Model (EWR P2)

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› Quick and efficient tool to model a large area on EWR P2.

Bedrocks, superficial geologies and made ground were able to

be modelled.

› Integration of engineering design models (foundation,

structural, earthworks and route alignments) with ground

model.

› Using Leapfrog Works allowed for planning further GI in

targeted areas. New GI could dynamically update the model

once imported into the database, using the Keynetix.Cloud API.

› Visualization and drawing tools allowed for efficient

presentation of the model to others. Ease of sharing the model

with a wider audience. Promoted discussions around the

model.

› Sufficient exporting formats to make the model/ layers

compatible with other tools.

› Conclusion: Quick and efficient way to produce a geological

ground model for a long linear scheme. Certain of Leapfrog

Works limitations have been recorded in a technical note.

Rampion Offshore Wind Farm, UK, English Channel

› Site in English Channel underlain by Chalk and Tertiary

sediments

› Atkins provided a range of geological and geotechnical services

– offshore and in the office

› Preliminary ground model including desk study, foundation

optioneering study, and pre-FEED design for substructure

options

› Development of integrated 3D Ground Model with near real-time

updates during offshore GI

› Used combination of O&G geophysical software and GIS to

integrate and assess the geotechnical, geological, and

geophysical data

› Development of Ground Characterization and Engineering

Terrain Unit Mapping

› Ad-hoc technical assistance during construction period,

including real-time micro-siting of turbine locations.

Ground Deformation, O&G Facility

› Tasked with assessing the distribution of weak collapsible soils

across an existing O&G facility and determine the risk they posed

to the structures at the facility

› Desk-based review of available information – geotechnical

investigation records and reporting, design drawings, published

geological mapping & technical literature, publicly available satellite

imagery and InSAR data.

› Geospatial data analysis to determine distribution of weak

collapsible soils across the site.

› GIS-based assessment of the risk this posed to the various

structures at the site.

› Worked with the Client to identify investigation and mitigation

strategy.

› Later also assisted the Client to identify strategy for monitoring a

neighbouring active mud volcano.

› Example of InSAR data provided by SatSense to demonstrate

capability

For more information, contact Dr Andrew Hart; [email protected]

Confidential Rock Cavern Excavation Project in Hong Kong

› Leapfrog Works was used to rapidly develop a

ground model for a rock cavern project in

Hong Kong

› The amount of time needed to develop

geological models was less than for a

traditional approach.

› Atkins was able to model geological strata,

discontinuous soil layers, fault zones, mineral

veins, isolated soil lenses and hydrothermal

alteration zones efficiently in 3D and as the

model was dynamic, these layers could be

updated automatically when more borehole

data was added to the model.

› Visualization and drawing tools allowed for

efficient presentation of the model to others

› Compatible with other software

› Conclusion: Provided a more efficient and

effective geological ground modelling tool

Example ProjectWylfa Newydd

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Site Location

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Wylfa A

Wylfa Newydd

How Atkins made the difference


Ground Investigation

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› Critical secondments to boost client’s technical

capability

› Rapid deployment of team of six to supervise

extremely large GI

› Interpretation of large dataset and delivery of

interpretative report to challenging deadlines

› Development of scope and detailed specification of

several phases of investigation

› Onshore and offshore (inter-tidal) investigations

› State-of-the-art data management system

› Interface with HoleBASE SI

› Several rounds of internal client and regulatory

review

Offshore Investigation


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Offshore Superficial Deposits


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Extracts from Atkins (2018) Detailed Offshore Ground Investigation (DOffGI), Final Interpretative Ground Investigation Report

Bedrock Classification


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X1, X2: Good quality

X3: Moderate quality

X4, Y: Poor quality

Extract from Hunt et al (2006) Development and Application of a Site-

Specific Rock Mass Classification Scheme for Wylfa Newydd New Build

Nuclear Power Station in the UK. ARMA 16-0088

Classification – Rock Mass (Rock Core)


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Good Quality: X1 or X2 (fresh to slightly weathered, fracture spacing >60mm)

Moderate or Poor Quality: X3, X4 or Y (moderately to completely weathered, fracture spacing typically <60mm)

Site-wide 3D Ground Model


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SNC-Lavalin Atkins 16x9 Corporate Overview - CERN Indico

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