Means for extracting a soil anchor consisting of a prestressed s

Details Means for extracting a soil anchor consisting of a prestressed s Means for extracting a soil anchor consisting of a prestressed s

1977-01-19

1978-08-01

Brown, David H.

Ammunition and explosives

Igniting devices and systems

52166, F42D 100

Patent

active

041036182

ABSTRACT:
Method and means for extracting a soil anchor consisting of a prestressed steel tendon anchored in a soil comprising introducing an explosive in a tube placed in the center of said steel tendon, detonating and blasting said explosive, by which explosion the hardened anchorage surrounding the lower part of said anchor is loosened, and pulling the whole length of the loosened anchor out of the soil.

REFERENCES:
patent: 1746848 (1930-02-01), Bates
patent: 2048677 (1936-07-01), Berteling
patent: 3494134 (1970-02-01), Jorge

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