FIELD: environment protection; protection of underground rock by removing contaminants. SUBSTANCE: method employs removing device installed in contaminated zone into which contaminant treatment material is delivered and building of vacuum for pumping out contaminants. Holes in removing device are opened and closed successively and selectively and vacuum is built up selectively to evacuate contaminants. Device is set into operation to provide turning and displacement for selective successive closing of each opened hole with simultaneous opening of other hole. Device for removing underground contaminants has discharge and/or extracting device is form of shaft for evacuation of mixtures of substances and contaminants from selective areas of contaminated underground zone. Device is provided with arrangement for turning and displacement of inner casing of shaft. EFFECT: improved protection of underground rock. 22 cl, 11 dwg, 1 tbl
Authors
Dates
1997-12-10—Published
1994-05-17—Filed