陕西泾阳宋元引泾渠首的技术研究

The Studies on the Techniques of the Jing River Water-diversion Canal Headwork of the Song and Yuan Dynasties in Jingyang,Shaanxi

宋丰利渠、元王御史渠是历代引泾渠首保存相对较好者,本文对其中蕴含的技术进行探讨:宋丰利渠前后双闸结构、元王御史渠口平面呈"八"字形,具有束水流沙的作用;元王御史渠顶石窝与袁保恒置筒车有关;河道内残留有柱窝的石块可能与洪口石堰有关。

The Fengli Canal of the Song Dynasty and the Yushi （Censor） Wang Canal of the Yuan Dynasty are the water-diversion canals of the Jing River of the past periods with better preserved headworks. This paper explores the technical details of these canal headworks： the tandem double-sluice structure and the A-shaped plan of the head of the Yushi Wang Canal had the function of ＂restricting the water （to make it rapid enough） to flush away the silt＂; the stone pit on the top of Yushi Wang Canal might be related to the Chinese noria set by Yuan Baoheng; the stone blocks bearing postholes scattered in the riverbed might be related to the flood-defending stone weir.