Shielded tamper and method of use for making aggregate columns

Details Shielded tamper and method of use for making aggregate columns Shielded tamper and method of use for making aggregate columns

E - Fixed Constructions

02

D

E02D 7/00 (2006.01) E02D 7/18 (2006.01) E02D 11/00 (2006.01)

Patent

CA 2730150

A tamper device includes a shaft for driving a tamper head. A tamper head is attached to the end of the shaft for tamping a lift of aggregate in a cavity formed in a ground surface. A shield extends upwardly a predetermined height from the tamper head an amount sufficient to prevent sidewalls of the cavity from failing and collapsing. Methods of constructing aggregate columns with thicker lifts are also disclosed.

La présente invention concerne un dispositif de damage qui comprend une tige conçue pour entraîner une tête de damage. Une tête de damage est fixée à lextrémité de la tige afin de pilonner une couche de granulats dans une cavité formée dans une surface du sol. Un dispositif de protection sélève depuis la tête de damage selon une hauteur prédéterminée et en quantité suffisante pour empêcher la fragilisation et laffaissement des parois latérales de la cavité. Linvention porte aussi sur des procédés de construction de colonnes de granulats aux couches plus épaisses.

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