E - Fixed Constructions – 02 – D
Patent
E - Fixed Constructions
02
D
61/32
E02D 3/10 (2006.01) E02B 11/00 (2006.01)
Patent
CA 1153213
Mauno Olavi Juhola Professor Pohjoiskaari 15 00200 Helsinki 20 Procedure and means for creating a vertical drain ABSTRACT OF DISCLOSURE A procedure for creating a vertical drain by pushing into the ground an insertion tube housing within itself a so-called prefabricated drain, by pulling out the insertion tube and cutting off the prefabricated drain. The prefabricated drain is out off with a cross-cutting means located within the insertion tube at such height, or in such a layer as for instance a sand stratum which accepts the water conveyed by the prefabricated drain.
379519
Gowling Lafleur Henderson Llp
Juhola Mauno O.
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