• Victoria Station Upgrade Jet Grouting Project

    Taylor Woodrow BAM Nuttall JV

    Victoria Station Upgrade Jet Grouting

    London, England, United Kingdom

Project Summary

Project
The GBP 37 million unprecedented work package to upgrade Victoria Station required Taylor Woodrow BAM Nuttall JV to design and orient the jet grout columns among numerous services and utilities with minimal accurate location details. To identify, survey, and model these utilities and services so it could adjust column locations to ensure sufficient coverage, the team needed a multi-discipline, 3D model that allowed survey data to be fed back into the model, reviewed by the design team, and ultimately transferred to the rig control system.

Solution
Using Bentley software, Taylor Woodrow BAM Nuttall JV developed a comprehensive model to enable review of dynamic sectional views, define the location and adjust orientation of the columns, and create construction planning visualizations. Working in a reliable 3D environment facilitated a safe and robust tunneling network. The ability to transfer geometry data from the model to the rig control system, and as-built data back into the model, provided a comprehensive, consistent process for separate overlapping work sites to maintain area traffic and pedestrian routes throughout the project.

Outcome
All 2,500 jet grout columns were designed, adjusted, and installed using Bentley products. The accuracy and reliability of the modeling information enabled this complex ground treatment project to be executed timely, with minimal disruption to stakeholders and users of the station system. The ability to review and refine the way objects were surveyed and remodeled enabled column locations to be thoroughly designed and aligned, resulting in significant program savings and increased safety of underground operations.

Software
Taylor Woodrow BAM Nuttall JV used Bentley MicroStation to design the 3D model for this unprecedented jet grouting project. The model not only defined the location of the columns but assigned data to the model entities. The software allowed the data to remain electronic from initial design to transfer to the rig control system, eliminating data entry errors. Integrating ProjectWise enabled the remote design team to share and control the model with the site-based survey team, allowing multiple users to work collaboratively from different locations, while maintaining quality, traceable information.

Outcome/Facts:
  • Integrating ProjectWise provided a collaborative, electronic modeling environment reducing data entry errors and maintaining information integrity.
  • Using Bentley’s modeling and collaboration software to design and construct this complex ground treatment project minimized duration of work and disruption to stakeholders and station users.
  • The accuracy and reliability of Bentley’s modeling environment facilitated the safe and robust tunneling implementation at London’s Victoria Station servicing 80 million passengers annually.
  • Designing the 3D model using MicroStation enabled the onsite team to identify, survey, and model a vast number of utilities and services necessary for aligning and orienting the jet grout columns for the sprayed concrete tunnel construction.