Description

The hydraulic conductivity of a degraded plug may be high and transport of dissolved species may be rapid, but since the geometry is restricted, the plug will not affect the overall transport pattern in the repository.

SKB Number

SKB FEP Number

Pg19

Main Category

Main category for FEP

Internal process

System Component

System component to which the FEP applies

Tunnel plugs

Handling

Explanation of how the FEP is treated

Failed canister, Resaturation/ "thermal" period: Assumed to be part of the tunnel with high hydraulic conductivity (no failures are expected this period). Failed canister, Long-term after saturation and "thermal" period: Assumed to be part of the tunnel with high hydraulic conductivity.

References

Bibliographic references to obtain more information

SR-Site Buffer, backfill and closure process report, TR-10-47, Section(s) 2.4.3, 5.5.2