Source: https://tendernation.io/opportunities/01a13c68-a16a-7274-b2f5-c1645c3ca253/bbv-hs2-mwcc-north-passive-relief-wells-sublot-2 closed GB open procedure Suitable for SMEs # BBV HS2 MWCC North - Passive Relief Wells - Sublot 2 [Balfour Beatty VINCI JV HS2](https://tendernation.io/buyers/balfour-beatty-vinci-jv-hs2) Estimated value £1 Published 9 Apr 2021 Deadline Closed 16 May 2021 ## Who can bid - Buyer says suitable for SMEs The buyer ticked “suitable for SMEs” on the notice. Anyone can still bid. - Small contract value Valued under £135,018 including VAT, the lowest Procurement Act threshold for goods and services. - Open procedure Anyone can submit a full tender; there is no shortlisting stage. [More contracts for small businesses and VCSEs](https://tendernation.io/opportunities/for-small-businesses) ## About this tender Balfour Beatty VINCI (BBV) have been awarded HS2 main works civils contracts, lots N1 and N2 under an Early Contractor Involvement contract (ECI). We are currently in stage one of a two stage process. We are looking to engage with the specialist supply chain whom provide passive relief well works. Full details and specifications will be provided to the successfully shortlisted suppliers. Suppliers should be aware of the scale of this project and should assess their internal capabilities to be able to carry out the intended scope of works, prior to completing this expression of interest (EOI). When selecting a supplier BBV look for alignment of values, behaviors and cultures, between ourselves and our supply chain. BBV and HS2 have aligned their values to the following: - Integrity - Leadership - Respect - Safety In order to achieve a successful project outcome we have published a manifesto of our guiding principles, which include: - Making HS2 affordable - Delivering on promises - We build with people in mind - Delivering more than a railway - Achieving more together - Creative and challenging Successfully shortlisted supplier's will be those with verifiable experience, and the appropriate capacity ,resources and technical ability to deliver the scope of works. Supplier's may then be invited to the project, to formally demonstrate their experience and capabilities. As an alternative phone/webinar interviews may be conducted. On selection, shortlisted supplier's will be issued with a formal pre-qualification and/or Invitation to Tender (ITT) to demonstrate their ability to work with these values and behaviors in mind, whilst proving their demonstration of capabilities and competence. BBV is a joint venture between Balfour Beatty Group and VINCI Group. Balfour Beatty VINCI is a long established joint venture between two global leaders in the delivery of critical Infrastructure and Highways Projects, such as the channel tunnel, crossrail, M4/M5/M6 Smart Motorway projects and HS2 main works civil contract for the north. More about BBV: - VINCI is the largest contractor in the world - Balfour Beatty is the largest contractor in the UK - BBV have been working together for the past 30 years, their first project being the channel tunnel. For more information please visit our website [balfourbeattyvinci.co.uk](https://www.balfourbeattyvinci.co.uk) Overview of the requirement: • Pressure relief wells within the retaining walls • Inflow rate: 5L/s per 100m of structure • Diameter of wells 250mm • Depth of wells: 15m deeper than final excavation level • Wells filled with aggregates type 6C • 2 Wells per row every 20m (best case) or every 5m (worst case) all along Burton Green Tunnel and Burton Green Retaining Additional information: Overview of the requirement: • Pressure relief wells within the retaining walls • Inflow rate: 5L/s per 100m of structure • Diameter of wells 250mm • Depth of wells: 15m deeper than final excavation level • Wells filled with aggregates type 6C • 2 Wells per row every 20m (best case) or every 5m (worst case) all along Burton Green Tunnel and Burton Green Retaining Structure (from area GT5 to area RW1) • The pressure relief wells would evacuate any artesian pressure that could destabilize the ground during excavation works. Underneath the top slab, transversal ditches would be installed at every row of wells to drain inflow waters from the wells to the edge ditches running at toe of embankments toward the temporary balancing ponds • The wells are trimmed as excavation works progress toward final excavation level. • When final excavation level is reached, sleeves of the baseslab thickness are installed at each well location. These sleeves are embedded in the baseslab • During baseslab works, water is evacuated through baseslab permanent ditches toward exit of tunnel and pumped away. • When baseslab is complete, the sleeves are sealed with end plates and grouted. At that stage, the structure can withstand the uplift pressure. Read full description ## CPV classification Works for complete or part construction and civil engineering work Source Contracts Finder (UK) [View official notice](https://www.contractsfinder.service.gov.uk/notice/21280508-6dd1-429b-85e0-0980daeb9881) Never miss a tender like this again Get AI summaries, deadline alerts and a bid pipeline for tenders matched to your business. Free to start. [Track tenders free](https://tendernation.io/register) [Buyer profile Balfour Beatty VINCI JV HS2: past awards and live tenders](https://tendernation.io/buyers/balfour-beatty-vinci-jv-hs2) [Sector More Construction work tenders](https://tendernation.io/sectors/construction-work) ## More tenders like this [Bannister Sports Centre Athletic Track Soft Market Testing Exercise · Harrow Council · 38 days left · 26 Nov 2026](https://tendernation.io/opportunities/01a1540d-d9e4-71cb-ad57-1603e9042fec/bannister-sports-centre-athletic-track-soft-market-testing-exercise) [Hdc-1714 wadkins pavilion refurbishment · Harborough District Council · 39 days left · 27 Nov 2026](https://tendernation.io/opportunities/01a155bf-f664-72f9-9823-a85d6cddbdc6/hdc-1714-wadkins-pavilion-refurbishment) [Design, supply, and Installation of Newbiggin Skatepark Extension · Newbiggin Town Council · 35 days left · 23 Nov 2026](https://tendernation.io/opportunities/01a15552-19a2-7348-a5cc-3f5ae51ef934/design-supply-and-installation-of-newbiggin-skatepark-extension) [Tender for the design, supply, delivery and installation of a modular UNIT and associated works at ARC healthy living, irvinestown. peaceplus funded upgrade works · Fermanagh and Omagh District Council · 14 days left · 2 Nov 2026](https://tendernation.io/opportunities/01a15552-1b74-73ec-a6f6-a1af37959997/tender-for-the-design-supply-delivery-and-installation-of-a-modular-unit-and-a) [ESPH AB RDC Sidley Depot (ESPH753) · Rother District Council · 49 days left · 7 Dec 2026](https://tendernation.io/opportunities/01a15552-1d19-7155-8fe0-0d917105fca8/esph-ab-rdc-sidley-depot-esph753) [Demolition, Design and Construction of Howard's Lane Public Toilets, Howard's Lane, Wareham · Wareham Town Council · 88 days left · 15 Jan 2027](https://tendernation.io/opportunities/01a15552-1d8a-7277-bc5b-edc9a127ee5b/demolition-design-and-construction-of-howards-lane-public-toilets-howards-la)