| 摘要 |
PURPOSE: The caisson for bridge repairing is provided to improve the reliability and the specialty of in a repair work by enabling the repair work as checking the damaged part of a well tank in a work scene with naked eyes. CONSTITUTION: The installation of a caisson has the steps of: forming a combination hole(12,13) at the right/left sides of the upper/lower part of a body(11); installing a caisson(10) having a reinforcing piece(14) formed; forming a combination hole(17,18) at the left/right sides of the upper/lower part of the body(16); forming the reinforcing piece(19) at an outer circumference; integrally forming a tube(20) at the lower part of inside; forming an injection hole(22) for injecting air or water into the tube(20); forming a cover(21) to be hinge-rotated at the lower side of the tube(20); installing a watertight caisson(15) having a tube protective unit(23) at the upper side.
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