| 摘要 |
PURPOSE:To prevent displacement in the position of a block, by a method wherein, after the head part of a bolt screwed to the one block is inserted into a box mounted to the other block, a washer is attached in a wedge-like manner between the heat part and the end wall of the box. CONSTITUTION:An oblique wall block 5 is placed on a straight wall block 4, joint surfaces 5a and 4a are abutted on each other, and a head part 18b of a bolt 18, screwed to the block 4 through the medium of a box nut 17, is projected through a hole 19b in a box 19, mounted to a block 5, into a box 19. After a washer 22 is located between the head part 18b of the bolt 18 and the inner surface of an end wall 19a of the box 19, the bolt 18 is tightened to join the block 4 with the block 5. Thereafter, the interior of the box 19 is filled with mortar 23. In case a bottom block 2 is piled on a body block 3 and the straight block 4 is piled on the body block 3, they are joined with each other in a similar manner described above. |
