CONSTRUCTION METHOD OF GROUND ANCHOR AND GRAND ANCHOR USED THEREFOR

摘要

PURPOSE: To generate friction resistance force between hardner and the peripheral ground over the approximate length of an anchorage length section to enhance total friction resistance force. ;CONSTITUTION: A free length section A of tension members 2 is the unbond type, and a naked part is an anchorage length section B. A part of the anchorage length section B is a tension transfer section D of the unbond, a low bond confining section C is between the free length section A and tension transfer section D, and the further depth than the tension transfer section D is a high bond confining section E. Such a free length section A of the tension members 2 passes through a straight sheath 4, and the anchorage length section B passes through a steel deformed sheath 5 to form a ground anchor 1. The ground anchor 1 is inserted into a hole bored in the ground, and hardener 8 is injected to anchor.;COPYRIGHT: (C)1994,JPO&Japio