Description

Groundwater flow in the bedrock surrounding the repository during excavation, operation and the post-closure period.

SKB Number

SKB FEP Number

Ge03

Main Category

Main category for FEP

Internal process

System Component

System component to which the FEP applies

Geosphere

Handling

Explanation of how the FEP is treated

Excavation/operation: Modelling of inflow, water table drawdown and salt water upconing assuming saturated groundwater flow using DarcyTools. MIKE SHE used for simulating water table drawdown effects in detail. Temperate: Modelling of backfill resaturation using DarcyTools and saturated groundwater flow on different scales using ConnectFlow. Periglacial: Modelling of saturated groundwater flow on a super-regional scale using DarcyTools. Glacial: Modelling of groundwater flow on a super-regional scale during advance and retreat of ice sheets, with and without permafrost, using DarcyTools. Earthquakes: Impact on groundwater flow not specifically addressed but simplified calculations of radionuclide transport carried out (see Ge24).

References

Bibliographic references to obtain more information

SR-Site Geosphere process report, TR-10-48, Section(s) 1.6, 3.1; SR-Site Main report, TR-11-01, Section(s) 7.4.5