FIELD: building, particularly pile forming in grounds having macroporous surface layers, loamy underlying layers and interlayers of muddy clay and loose sandy soils.
SUBSTANCE: method involves driving retrievable shell with releasable metal head having ferrule on upper end thereof, wherein the ferrule is inserted in shell and head ferrule is provided with perforation orifices; immersing head in ground on reaching weak ground interlayer, wherein head immersion is provided by rod arranged in shell, so that perforation orifices of lower ferrule row project out of the shell; substituting the rod for pipe with packer, which injects fixer in weak ground; lifting pipe with packer; lowering shell to next weak ground interlayer and repeating above operations to project next perforation orifices of the next ferrule row and to inject fixer; lowering the shell to design mark; filling the hole with concrete and removing the shell.
EFFECT: increased load-bearing capacity of side pile surface.
1 dwg
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Authors
Dates
2006-03-27—Published
2004-09-15—Filed