Hydraulic and earth engineering – Foundation – Columnar structure
Patent
1984-04-19
1986-07-22
Corbin, David H.
Hydraulic and earth engineering
Foundation
Columnar structure
405240, 405248, E02D 546
Patent
active
046016139
ABSTRACT:
The present invention relates to the manufacture of a concrete pillar, cast on site, in difficult grounds, not allowing the use of traditional equipment.
A rotating column equipped with nozzles at its lower end and having a reduced diameter as compared with the pillar to be built, sends, as it penetrates the ground, a powerful pressurized fluid jet; in this way a wide cavity is formed, which is filled during the same excavation with selected aggregates; finally a binding mixture is injected as the excavating tool is extracted.
REFERENCES:
patent: 890765 (1908-06-01), Gilbreth
patent: 3504497 (1970-04-01), Turzillo
patent: 3608317 (1971-09-01), Landau
patent: 3802203 (1974-04-01), Ichise et al.
patent: 4397588 (1983-08-01), Goughnour
Corbin David H.
Fondedile S.p.A.
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