Description
The hydraulic gradients within the access tunnels, ramp and shaft depend on:the magnitude and direction of the regional hydraulic gradient; anomalous pore pressures within the Opalinus Clay; the distribution of hydraulic conductivity within and around the repository tunnels, including the access tunnels, ramp and shaft; and processes occurring within the repository that affect pore pressure, including tunnel convergence and heat and gas generation.
OPA Category
Category as used in the OPA assessment
Tunnels and shafts
OPA Number
Number as used in the OPA assessment
1.04
NEA V1 IFEP Reference(s)
Related IFEPs from the NEA V1 IFEP list from 1999
2.1.08