| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a concrete support body B constructed for slope protection, which lowers the projection height of a whole structure for fixing anchor head during installation of an anchor and improves the workability of the installation work. <P>SOLUTION: At an opening part of an anchor installation hole C in a concrete support body formed on a slope, an anchor installation washer 2, which has a height adaptable for the overall height of a nut 3 with spherical support to be screwed to the head of an anchor 1 and comprises a body part 21 serving as a seat part for the nut 3 with spherical support by inclining the inner circumferential face thereof and a collar plate part 22 arranged around a vertical intermediate position of the body part and fulfilling a retaining function of the concrete support body, is used to set the nut 3 with spherical support at a position lower than the surface of the concrete support body B, thus lowering the height of the whole structure for fixing anchor head. <P>COPYRIGHT: (C)2013,JPO&INPIT |
