Suitable software for modelling groundwater flow and transport in a range of geological settings pertinent to the UK GDF programme.
The required technical features, hardware compatibility, licencing, and support necessary to meet NWS's needs.
Capability to simulate groundwater flow and transport using a
• Capability to simulate groundwater flow and transport within fractured rock, including Discrete Fracture Network (DFN) and Equivalent Continuous Porous Media (ECPM) modelling.
• Capability to simulate hybrid models (part DFN, part (E)CPM).
• Functionality for transport calculations, either as an inert tracer (concentration field) or through particle tracking algorithms.
• Flexible import functionality to include geological and structural information, lithological bodies/surfaces, borehole information etc.
• Gridding functionality suitable for DFN, CPM or hybrid models.
• Flexible export functionality of model output to support integration with other work streams (e.g., post-closure safety).
• Functionality for density-driven flow due to variations in groundwater salinity (e.g., through transport of a saline tracer).
Contract to provide consultancy services specifically for the development of Security & Safeguards cases, supporting the GDF design & development process.
A contract has been awarded via the Business & Technical Services Marketplace Dynamic Purchasing System (original OJEU TED ref. 2019-S 228-559692) to:
Provide a detailed programme of work for high-salinity environments by understanding bentonite swelling pressure & hydraulic conductivity across a range of dry densities (1000-1900kg/m3) in DI water & 0.5m, 3m & 6m NaCl (solubility limit dependant).
A contract has been awarded via the Business & Technical Services Marketplace Dynamic Purchasing System (original OJEU Contract Notice TED reference 2019-S 228-559692) to:<br/>Provide a detailed programme of work for high-salinity environments by understanding bentonite swelling pressure & hydraulic conductivity across a range of dry densities (1000-1900kg/m3) in DI water & 0.5m, 3m & 6m NaCl (solubility limit dependant).
Radioactive Waste Management Limited trading as Nuclear Waste ServicesWAC-119968
Contract to provide consultancy services specifically for the development of Security & Safeguards cases, supporting the GDF design & development process.
Radioactive Waste Management Limited Trading as Nuclear Waste Services LimitedWAC-204155
This specification invites contractors to submit a targeted proposal for a three-staged programme of further work in experimental methodology development and approaches for radionuclide behaviour parameter measurement applicable to NWS’s current knowledge gaps. At this stage, a proposal submitted in response to this Contract Technical Specification (CTS) should focus on Stage 1 of the work scope outlined below. A detailed, fully costed modular proposal for Stage 2 & 3 works is an anticipated output of Stage 1. The combined scope (Stages 1- 3) includes reviewing the global methodologies for acquiring site-specific radionuclide behaviour parameters, including development of a fully costed, modular work plan (Stage 1), and thereafter undertaking measurements to fill data gaps or to underpin safety arguments (Stage 2) and development of an optimised testing and analysis strategy (Stage 3), particularly in relation to relevant, UK-specific potential host rocks
Framework Agreement to provide consultancy services specifically for the Development Consent Order (DCO), environmental permitting and any other consent and permitting requirements supporting the GDF deep borehole investigations.
Radioactive Waste Management Limited trading as Nuclear Waste ServicesWAC-125710