Description

Concerns the formation of open channels or gaps in the top seal materials by inflowing groundwater and the erosion of fine particles along the so created pipes.

SKB Number

SKB FEP Number

TS06

Main Category

Main category for FEP

Internal process

System Component

System component to which the FEP applies

Top seal

Handling

Explanation of how the FEP is treated

Intact canister, Resaturation/ "thermal" period: Neglected since piping cannot occur in the material. Intact canister, Long-term after saturation and "thermal" period: Neglected since piping cannot occur in the material.

References

Bibliographic references to obtain more information

SR-Site Buffer, backfill and closure process report, TR-10-47, Section(s) 2.6.3, 7.2.4