System for isolating a dump
OwnerFriedrich W. Paurat, Roland Pauratinventors
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Abstract
A system for isolating a dump sitting on the ground has three different structures which are installed under the dump sequentially, as needed. The first structure includes a tunnel driven longitudinally through the ground underneath the dump and an array of drainage pipes passing through the ground and each having a lower end opening into the tunnel and an upper end at the surface. The second structure includes a water barrier in the ground around at least some of the drainage pipes. The third structure includes a water-impervious mass of backfill in a slit underneath the barrier and having a lower end at the tunnel and an upper end at the surface.
Claims3
A method of isolating a dump sitting on the ground, the method comprising the steps of:
- driving a tunnel driven longitudinally through the ground underneath the dump;
- installing an array of perforated drainage pipes through the ground and each having a lower end opening into the tunnel and an upper end at the surface;
- installing a perforated service tube inside each drainage pipe;
- providing a water barrier in the ground around the drainage pipes by injecting waterproofing material into the ground around the drainage pipes from the perforations of the service pipes and drainage pipes;
- cutting underneath the barrier a slit having a lower end at the tunnel and an upper end at the surface;
- and
- backfilling the slit with a water-impervious mass.
Dependencies are inferred from the claim text.