Fixtures and restraint methods

Abstract

The challenge is to provide a jig that can eliminate the step difference on the sides of adjacent PCa blocks. [Solution] The jig (30) comprises a backing plate (32) that straddles the sides of two adjacent PCa blocks (1A and 1B) and is applied to the sides thereof; a first movable body (50) that is temporarily fixed to one of the two PCa blocks (1A) (1A); a first fastening mechanism (53 and 59) provided on the first movable body (50) that presses the backing plate (32) against the side of the one PCa block (1A); a second movable body (60) that is temporarily fixed to the other PCa block (1B) (1A and 1B); and a second fastening mechanism (63 and 69) provided on the second movable body (60) that presses the backing plate (32) against the side of the other PCa block (1B).

Claims

1. A backing plate is placed across the sides of two adjacent PCa blocks, and is applied to the sides of those blocks. A first movable body is temporarily fixed to one of the two PCa blocks, A first fastening mechanism is provided on the first movable body and presses the backing plate against the side surface of one of the PCa blocks, A second movable body is temporarily fixed to the other PCa block of the two PCa blocks mentioned above, A second fastening mechanism is provided on the second movable body, which presses the backing plate against the side surface of the other PCa block, A jig equipped with the following features.

2. A flange is provided integrally with the backing plate and extends from the upper edge of the backing plate in a direction perpendicular to the backing plate, A first guide provided on the upper surface of the flange, The device comprises a second guide provided on the upper surface of the flange alongside the first guide, The first guide hole, surrounded by the upper surface of the flange and the first guide, is formed to penetrate in the thickness direction of the backing plate. The second guide hole, surrounded by the upper surface of the flange and the second guide, is formed to penetrate through the thickness direction of the backing plate. The first movable body, A first top plate is formed in which a first insertion hole is formed into which a first anchor bolt is inserted, which is inserted into the first guide hole and guided in the thickness direction of the backing plate by the first guide hole, and which protrudes upward from the upper surface of one of the PCa blocks, A first hanging plate is provided integrally with the first top plate and hangs down from the first top plate, It has, The second movable body, A second top plate is formed in which a second insertion hole is formed into which a second anchor bolt is inserted, which is inserted into the second guide hole and guided in the thickness direction of the backing plate by the second guide hole, and which protrudes upward from the upper surface of the other PCa block, A second hanging plate is provided integrally with the second top plate and hangs down from the second top plate, It has, The first fastening mechanism is provided on the first hanging plate, and the second fastening mechanism is provided on the second hanging plate. The jig according to claim 1.

3. The first fastening mechanism, A first adjustment bolt that penetrates the first hanging plate and abuts against the backing plate, The first hanging plate is provided with a first female thread that engages with the first adjustment bolt, It has, The second fastening mechanism, A second adjustment bolt that penetrates the second hanging plate and abuts against the backing plate, The second hanging plate is provided with a second female thread that engages with the second adjustment bolt, has The jig according to claim 2.

4. The flange, the first top plate, and the second top plate are flat, the thickness of the first top plate is equal to the vertical width of the first guide hole, and the thickness of the second top plate is equal to the vertical width of the second guide hole. The jig according to claim 2 or 3.

5. The width of the first top plate is smaller than the width of the first guide hole, and the width of the second top plate is equal to the width of the second guide hole. The jig according to claim 2 or 3.

6. A method for restraining the two PCa blocks using the jig described in claim 1 or 2, The first movable body and the second movable body are temporarily fixed to one PCa block and the other PCa block, respectively. The backing plate is brought into contact with the sides of the two PCa blocks, the first fastening mechanism applies pressure from the backing plate to the side of one of the PCa blocks, and the second fastening mechanism applies pressure from the backing plate to the side of the other PCa block. Restraint method.

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