Multi-vibro pile hammer

Details Multi-vibro pile hammer Multi-vibro pile hammer

1977-02-25

1979-03-13

Hafer, Robert A.

Tool driving or impacting

Processes

173 49, 173101, E02D 718

Patent

active

041437195

ABSTRACT:
A multi-vibro pile hammer comprising a plurality of vibro pile hammers having vibration generating units adapted to generate vibrations with different phases and in synchronism with one another, and the arrangement is made such that vibrations to be transmitted through the ground between the piles or sheet piles held by the hammers so as to be driven underground or pulled out therefrom can be counteracted thereby reducing the vibration transmitting region remarkably.

REFERENCES:
patent: 3278235 (1966-10-01), Bergstrom
patent: 3722600 (1973-03-01), Hirata et al.
patent: 3828864 (1974-08-01), Havenkamp et al.
patent: 3948329 (1976-04-01), Cummings

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