ANCHOR OF EXTENSION TYPE

摘要

PURPOSE: An extension type anchor is provided to be firmly mounted on the ground by having multiple anchor heads and to prevent the wedge of an anchor head from spreading while being inserted into a borehole. CONSTITUTION: An extension type anchor comprises a settling unit, a grouting liquid hose(10), a reinforcing material, a packer, and a distribution plate. The settling unit comprises an anchor head(30), a movable member(40), and a wedge(50). The anchor head comprises a hollow(31) and a discharge hole(33). The movable member is slidably installed in the hollow of the anchor head. The wedge is installed in the anchor head and is rotated by the sliding of the movable member. The grouting liquid hose is connected to the hollow for injecting a grouting liquid into the hollow. The reinforcing material is located on the circumference of the grouting liquid hose. The packer is connected to the grouting liquid hose and seals a borehole by expanding with the injection of the grouting liquid. The distribution plate fixes the reinforcing material to the ground.