GGU-STRATIG: Defining gauge casing layers

The starting height (ground level) is entered in the stratigraphic log's base data under "Designation and position". Ground level always corresponds to the top of the backfill.

The height of the casing relative to ground level is entered in the "Casing + backfill" input group box. If the pipe protrudes from the ground the height difference must be entered as a negative value .

After clicking the "Casing" button the following dialog box opens:

When entering the layers for the casing the difference to ground level must be either subtracted from or added to the depth of the pipe, as appropriate. If a 2 m long blank casing protruding 0.25 m above the ground is used, the length of pipe in the ground is entered as a depth of 1.75 m for casing layer 1.