METHOD AND MEANS OF EXTRACTING SOIL ANCHOR CONSISTING OF APRESTRESSED STEEL TENDON

摘要

Method and means of 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.