9-6 伊勢崎藩八坂用水における木造掛樋の形式(計画系)

概要

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The purpose of this study is to try to find form of the wooden bridge for an irrigation channel "Yassaka-yousui" in the Isesaki-han, based on the field survey, and documents. First of all, This paper is discussed the wooden bridge for an irrigation channel "Yassaka-yosui" size, and frequency of rebuild. Beside it study restored outside of the bridge for an irrigation channel with roof, called "Yassaka-doi". Furthermore, this research tried to explain about "Yassaka-doi" form. Findings are as follows: "Yassaka-doi" was rebuild at least for three times from 1774 to 1926. The form of the "Yassaka-doi" drawn in the picture at 1879 ascends to 1832. Form of "Yassaka-doi" was gable roof of board roofing part of bridge for an irrigation channel, and it was the wooden bridge for an irrigation channel witch have immerse wooden gutter at both sides. "Yassaka-doi" was supported by piers set up in the river. The under beam, the above beam, post, side board, and under board made frame of channel.
2009-07-12