Patent AT-E40180-T1: [Translated] REMOVAL BELOW LANDFILLS.

1. Tunnelling or excavation beneath dumps or deposits and renovation of such dumps or deposits and/or of other contaminated zones, characterized in that the working face is inclined by at least 30 degrees to the vertical as a soil slope and the tunnelling takes place by face working, the face workings of which have the form of side workings, wherein the working face (12), orientated in the direction of working, is inclined as a soil slope, a cutting shield (3) with projecting roof blades being used for driving the face workings, which shield possesses at one side an inclination corresponding to the slope of the working face (12), and sealing sheets (18) are laid on the floor, the edge of which sheets nearest the working face is continued sufficiently far into the excavation to make possible, after the parallel excavation, that is the next side working (20) has been completed, a connection with the sealing sheet (18) then laid in this side working.

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  "009:25"
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  "009:066"
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  "NIH"
]