REMOVING TYPE ANCHORING WORK

摘要

PURPOSE:To permit tensioning members to be drawn out readily by a method in which a grout is powdered by hydration or vibration by using an expandible grout. CONSTITUTION:An expandible grout 5 composed primarily of quick lime is injected into an anchor hole 2, and a tensioning member 1 is inserted into the hole 2 to fix the member 1 by the expansion pressure of the grout 5. When the anchor becomes unnecessary, water is added to or vibration is applied to the grout 5 to crush the grout into powder. The tensioning member 1 can thus be easily removed away by very small pulling forces.