CENF – Civil Engineering Extension B887 PowerPoint Presentation, PPT - DocSlides

CENF – Civil Engineering Extension B887 PowerPoint Presentation, PPT - DocSlides

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Status – 18 September 2014. Done. : (1/2) . Preliminary civil engineering drawing and Functional specification approved by CERN on 18/03/2014. (EDMS 1365362 and 1350076). Civil engineering . Tender Design . ID: 551147

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Slide1

CENF – Civil Engineering Extension B887Status – 18 September 2014

Done: (1/2) Preliminary civil engineering drawing and Functional specification approved by CERN on 18/03/2014 (EDMS 1365362 and 1350076)Civil engineering Tender Design phase started on 2/04/2014 by ARCADISSubmission of the « Permis de construire » on 19/05/2014Market survey issued to the firms on 11/06/2014 → Two work packages (WP1-Civil engineering & WP2-Steel structure and cladding)

18 September 20141

Extension of Building 887 - Neutrino Platform General Meetings

N.Lopez

M.Manfredi

Slide2

Done: (2/2) Tender documents ready and EDMS approval procedure launched on 10/07/2014 → 9 firms qualified for WP1, 7 firms for WP2 and 4 firms for WP 1+2Specification Committee meeting held on 29/07/2014 Tender documents sent to the firms on 18/08/2014Construction Design phase started on 18/08/2014 by ARCADISBidders Conference held on 4/09/2014

Extension of Building 887 - Neutrino Platform General MeetingsN.Lopez – M.Manfredi

18 September 20142

CENF – Civil Engineering Extension B887

Slide3

Next steps:Bids expected on 2/10/2014Preparatory works to start on October 2014 (abattage, déviation de réseaux, etc)Construction Design expected on November 2014Adjudication foreseen on December 2014 FCContract signature Start of the works expected on January 2015 (if possible, anticipate Excavation works as early as possible)

Extension of Building 887 - Neutrino Platform General MeetingsN.Lopez – M.Manfredi

18 September 20143

CENF – Civil Engineering Extension B887

Slide4

Extension

Site Installation Area

Tunnel TDC85

Experimental Hall B.887 (EHN1)

The Extension will extend northwards from the building for about 70 m in the direction of the beams.

Extension of Building 887 - Neutrino Platform General Meetings

N.Lopez

M.Manfredi

18 September 2014

4

Technical Aspect

: Location

CENF – Civil Engineering Extension B887

Slide5

The Extension's dimensions are 72 m long by 50 m wide and 20 m high.

The extension includes two large pits of 7.35m and 9.0m deep.

The top metallic structure is similar to the existing building, allowing for an easy continuation of the overhead crane and services.

Extension

Existing EHN1

The technical gallery will be prolonged. Swallow service trenches will provide the access from the sidewalls to the pits.

Metallic Structure

Pits

Technical Gallery

Service Trenches

The works are broken down into two work packages

:

Work package 1 - Civil engineering

Work package 2 - Structural steelwork

Technical Aspect

: General info

Extension of Building 887 - Neutrino Platform General Meetings

N.Lopez

M.Manfredi

18 September 2014

5

CENF – Civil Engineering Extension B887

Slide6

Plan view

Section

A-A

Section B-B

A

A

B

B

-Construction sheet piles (or Reduce Cost Alternative Option)

-Construction diaphragm wall and final tie beams

-Construction of reinforced concrete structure (raft foundations, slabs, walls, etc.)

-Demolition of the existing gable retaining wall

Technical Aspect

: WP1 main activities

(1/2

)

CENF – Civil Engineering Extension B887

Extension of Building 887 - Neutrino Platform General Meetings

N.Lopez

– M.Manfredi

18 September 2014

6

Slide7

The works to be carried out will include: -General worksite installation-Rerouting and cutting existing underground networks-Mass and ditch earthworks -Drawdown of the water table-Road works, car parks and landscaping.-Rainwater treatment structures (worksite and definitive)

Notes:

Particular attention should be kept to the extracted cut material within 5.50m of distance from the TDC85Radiological Protection: People allow to enter the technical gallery or inside the existing building 887 should equipped (passive/operational dosimeter) and accredited by CERN. No special measure need to be planned to work outside

Extension of Building 887 - Neutrino Platform General Meetings

N.Lopez – M.Manfredi

18 September 20147

Technical Aspect

: WP1 main activities (2/2)

CENF – Civil Engineering Extension B887

Slide8

-Structural steelwork and associated components (Main and Secondary structures, Internal structures, Travelling crane structures)-Metalwork: guardrails, stairs, ladders, doors-Removal of the north gable of the existing building (not before the extension is water-tight and air-tight)

Please note that primary framework shall be erected after completion of the infrastructures and therefore above the pit and that this work package shall provide the necessary worksite protections

Extension of Building 887 - Neutrino Platform General MeetingsN.Lopez – M.Manfredi

18 September 20148

CENF – Civil Engineering Extension B887

Technical Aspect

: WP2 main activities (1/2)

Slide9

-façade-roofing-doors-glazed windows-ladders with safety cages-safety barriers -rainwater pipes-cryogenics roof-etc.

Extension of Building 887 - Neutrino Platform General Meetings

N.Lopez

M.Manfredi

18 September 2014

9

CENF – Civil Engineering Extension B887

Technical Aspect

: WP2 main activities (2/2)

Slide10

Anticipated

start of the works (if possible) + 18 months

Source : ARCADIS → to

be updated after tendering procedures

Extension of Building 887 - Neutrino Platform General MeetingsN.Lopez – M.Manfredi

18 September 201410

CENF – Civil Engineering Extension B887

Schedule

Slide11

Extension of Building 887 - Neutrino Platform General MeetingsN.Lopez – M.Manfredi

18 September 201411

CENF – Civil Engineering Extension B887

Thanks for your attention

..

Questions?


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