Tender Details

Country: United Kingdom
Summary: Bbv Sublot 1B Tunnel Grout Treatment
GBT Ref No: 125886105
Deadline: 15 Sep 2025
Financier: Self Financed
Purchaser Ownership: Government
Tender Value: GBP 2500000
Notice Type: Tender
Document Ref. No.: C4N99370407
Purchaser's Detail:
Login to see full purchaser details. Login to see full purchaser details. Login to see full purchaser details. Login to see full purchaser details. Login to see full purchaser details. Login to see full purchaser details. Login to see full purchaser details. Login to see full purchaser details. Login to see full purchaser details.
Login to see details
Description:
"Ground Treatment "

The SC (Subcontractor) will assess the findings of the probe hole investigation and will develop the
grout treatment strategy to be followed with a scope to minimize any excess water ingress during CP
excavation and improve the ground stability.

Grouting operations will include stage permeation grouting on max 1m steps, with the use of packers.
Subcontractor based on ground and ground-water conditions as revealed from ground investigation
(probe holes) shall develop the grouting strategy. The strategy will include as a minimum but not
exclusively the following:
• A grouting pattern of primary and secondary on the periphery of CP profile
• Drilling diameter, orientation, and lengths of each grouting hole
• Bottom-up grouting stages with the use of packers. The grouting stages should not exceed the
length of 1m.
• In case required (unstable ground) Subcontractor may need to make use of a tube a
manchette TAM (sleeve pipes) system to perform the grouting. In this case the strategy should
be developed accordingly.
• Mix design(s) of the grout injection
• Max Pressure and max Volume criteria for stopping each grouting stage
• Tertiary drilling holes in case primary and secondary do not reach the target criteria.
• As built records grouting locations lengths stages grout consumptions and max pressure. "
Documents:

If you are registered member, kindly login to view full details of this tender notice:

Bbv Sublot 1B Tunnel Grout Treatment - Uk Tender

The BALFOUR BEATTY VINCI JV HS2, a Government sector organization in United Kingdom, has announced a new tender for Bbv Sublot 1B Tunnel Grout Treatment. This tender is published on UkTender under GBT Ref No: 125886105 and is categorized as a Tender. Interested and eligible suppliers are invited to participate by reviewing the tender documents and submitting their bids before the deadline on 2025-09-15.

The estimated tender value is GBP 2500000, and full details, including technical specifications and submission requirements, are provided in the official tender documents. Ensure all submissions meet the criteria outlined to be considered for evaluation.