Road structure – process – or apparatus – Apparatus – Rotating drum – roller or tire
Patent
1976-09-07
1978-06-06
Shapiro, Jacob
Road structure, process, or apparatus
Apparatus
Rotating drum, roller or tire
404 78, E02D 2748, E02D 548
Patent
active
040928322
ABSTRACT:
Disclosed is a method of correcting the height level of a concrete foundation or the like which is supported on a loose soil material. The bearing capacity of the soil material has been locally increased under the foundation by means of an oblong casing which is open at its opposite ends and has been driven down into the ground in order to isolate with respect to lateral movements in the soil masses a predetermined soil volume from the surrounding soil. The correction of the height level is carried out by injecting a moveable material mass beneath the foundation in the isolated soil at such a pressure that the foundation is raised.
REFERENCES:
patent: 1644572 (1927-10-01), Ferry et al.
patent: 2322855 (1943-06-01), Lenahan
Paul Anderson Industrier AB
Shapiro Jacob
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