| 摘要 |
PURPOSE:To shorten the period of construction by providing a working base on which an effluence equipment is set on a dam in advance. CONSTITUTION:A working base 4 on which an effluence equipment 3 whose lower part is to be buried as concrete is placed is provided on a dam 1, and a traveling crane 9 is also provided. Immediately before the uppermost part of the base 4 is buried in the dam 1 by concrete, the equipment 3 is connectedly installed on the uppermost part of the base 4. Since the needs for discontinuing the placement of concrete for installing the equipment 3 is eliminated, the construction period of dam can be shortened.
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