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    ContractsTunnel Grout Treatment for BBV Sublot 1B
    Closed contract

    Tunnel Grout Treatment for BBV Sublot 1B

    Contract value
    £2.5m
    Closed 15 Sept 2025

    This contract opportunity involves ground treatment services for the BBV Sublot 1B project. The selected subcontractor will be responsible for assessing probe hole investigation findings and developing a grout treatment strategy aimed at minimizing water ingress during the construction process and e

    🇬🇧United KingdomPublished 8 Sept 2025· 1 year agoviaContracts Finder
    Contract value
    £2.5m
    Closed 15 Sept 2025
    Tender deadline passed on 15 Sept 2025.

    Decision brief

    4 fields
    • Contract value
      est.£2,500,000
      Pounds sterling
    • Tender closed
      15 Sept 2025
      1 year ago
    • Sector
      Construction
      Browse related listings
    • Location
      🇬🇧United Kingdom

    Lifecycle

    Closed

    Tender closed on 15 Sept 2025. Awaiting award.

    8 Sept 2025Today15 Sept 2025

    Brief

    This contract opportunity involves ground treatment services for the BBV Sublot 1B project. The selected subcontractor will be responsible for assessing probe hole investigation findings and developing a grout treatment strategy aimed at minimizing water ingress during the construction process and enhancing ground stability. Key tasks include: - Conducting stage permeation grouting in 1-meter increments using packers. - Developing a grouting strategy based on ground and groundwater conditions identified in the investigation. - Establishing a grouting pattern with primary and secondary grouting around the perimeter of the construction profile. - Specifying drilling diameters, orientations, and lengths for each grouting hole. - Implementing bottom-up grouting stages, ensuring each stage does not exceed 1 meter in length. - Utilizing a tube a manchette (TAM) system for grouting in unstable ground conditions, if necessary. - Creating mix designs for grout injection and setting maximum pressure and volume criteria for each grouting stage. - Planning for tertiary drilling holes if primary and secondary holes do not meet target criteria. - Maintaining detailed records of grouting locations, lengths, stages, grout consumption, and maximum pressure. This project is valued at £2,500,000 and is published on the Contracts Finder platform. The deadline for submissions is September 15, 2025. For more details, visit the [Contracts Finder link](https://www.contractsfinder.service.gov.uk/notice/bdf5d5a4-c383-4335-9366-6542a9c1fea1).

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    View on sourceContracts Finder

    Original closed notice on the publisher's site

    Publisher
    UK Cabinet Office
    Licence
    OGL v3.0
    Source
    contractsfinder.service.gov.uk
    Record ID
    bdf5d5a4-c383-4335-9366-6542a9c1fea1

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    Buyer
    BALFOUR BEATTY VINCI JV HS2
    Sector
    Construction