| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent diffusion of water at an underwater working point, and to reduce a work time of a diver to reduce work burdens.SOLUTION: In an underwater core drill construction method and an underwater core drill system, a hydraulic drive drill 1 is adopted, water at un underwater working point is taken into an inner periphery of a core bit 2 by driving a pump to suck the inside of the core bit 2 while underwater structure is bored by the drill 1, and discharged to a predetermined discharge destination through a suction port 20 and the pump. In addition, a guide rail 71 is installed along a boring line of the underwater structure, a hydraulic drive carriage 74 is installed on the guide rail 71, the drill 1 is loaded on the carriage 74, the drill 1 is moved along the boring line of the underwater structure by a remote operation of the carriage 74, and positioned at a position to be bored.</p> |
