Channel Tunnel Rail Link London

Transcription

1 Channel Tunnel Rail Link London When You Cannot Afford to Fail Virtual Builder s Roundtable Workshop 13 June Seattle, WA

2 Channel Tunnel Rail Link Contract 105 Challenge: Ensure schedule milestones are achieved while reducing labor and material cost on Contract 105, a critical portion of Channel Tunnel Rail Link project. Approach: Configure and implement SPS Production Manager to improve workflow and the material supply. Configure and implement use of 3D computer modeling. Link SPS Production Manager to 3D model for design and management of operations. Results: All Major milestones completed ahead of schedule mitigating major liquidated damages Reduced labor cost by more than $5 million 2,000,000 man hours without a reportable lost time accident CORBER have hit every Applicable Milestone on the scheme. We have the safest site on the whole of the CTRL sections 1 and 2, and the client continues to confirm that the quality of the finished product is good. Keep it up! Charles Ball, Project Manager

3 CTRL Contract 105 Scope of Work Thameslink Box Blockade Excavation, Demolition, and Reconstruction of the Thameslink Tunnel during a 35 Week Rail Blockade period East & West Deck Opening of an interim station (East Deck) for the Midland Main Line, and construction of symmetrical deck in half the time (West Deck) Barlow Shed Under croft structural reinforcement & repairs Train Deck Rebuild Arch, Brickwork, & Roof Restoration East & West Side Buildings Tying new construction into a 140 year old structure

4 The Challenge - Railway Possession Costs ½ Hour Late Hand Back $92,500 for Thameslink Line 2 Hours Late $555,000 for Thameslink Line + $185,000 for associated Train Operating Companies 8 Hours Late $740,000 for Thameslink Line + $277,500 for associated Train Operating Companies 24 Hours Late $1,250,600 for Thameslink Line + $370,000 for associated Train Operating Companies

5 Case Study Fleet Sewer Possession Scope: Remove crash deck Install temporary steel supports Install 7 sections of Orthotropic deck Earth and Bond Orthotropic Deck Install 2 Plate Girders (65 & 105 Ton) Install 5 ea 30 Tonne M-Beams Schedule: 51 Hours to Execute Work Many (project team members) believed that this process and volume of work in the time available to be impossible Approach: SPS Production Manager to plan and control production Create 3D model and link to SPS Production Manager to support computer based process engineering

6 CTRL 105 Possession Process 1. Identify Key Milestones 2. Create lookahead using standard process library 3. Use 3D model to integrate and validate design 4. Link lookahead to 3D to create 4D simulation 5. Execute works

7 Create Master Schedule for Works Use SPS Production Manager to ensure everything in place by the time of the possession Rail Possession period used as milestone and worked back from it

8 Integrate Design Using 3D Digital Prototyping

9 Integrate Design Using 3D Digital Prototyping Pour W14 Pour W15 Pour W16 Pour W13 Pour W22 Pour W21 Pour W17 Pour W20 Pour W19 Pour W13

10 Validate Design Cross Section from 2D Design Drawings Pre-Site Delivery Cost: $250,000 Transport to Site: $6,500 Plant: $115,000 Cross Section from I-DEAS 3D Model Labor: $18,500 And it doesn t fit!

11 Standard Process - Plate Girder Installation

12 Quality Check Linked with Standard Processes

13 Material Linked with Standard Processes

14 Validate Proposed Sequence (4D Simulation)

15 Execute Works Onsite Outcome: Work completed 14 hours ahead of schedule!

16 Channel Tunnel Rail Link Contract 105 Next Steps: Civils Phase nearing completion Focus is shifting to the refurbishment of the Barlow Shed from an 1860 s train station to an international terminal between the United Kingdom and mainland Europe.

17 Barlow Shed Design Integration & Validation