| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a draft tube liner for hydraulic machine having a shortened construction working period and a reduced construction cost by further reducing an installation working space for the draft tube liner, and its installation method. SOLUTION: The installation method for the draft tube liner for the hydraulic machine comprises opening a bolt hole 13 in a lower plate 12 of the draft tube liner 11, welding a leg 14 to the outside of the lower plate 12 corresponding to the opened bolt hole 13, connecting a supporting plate 15 to a reinforcement 16 of a foundation concrete floor 10, installing the leg 14 on the supporting plate 15, threading a bolt to the draft tube liner 11 at its flow passage side via the bolt hole 13 and the leg 14, setting a fixing member 19 on the draft tube liner 11, and then placing a concrete between the draft tube liner 11 and the foundation concrete floor 10.</p> |
