Research On Plan For River Systems And Hydraulic Structure Of Yuan Dadu

On play for river systems of Yuan Dadu more than Jin, Ming and Qing three Dynasties. Thirty years early in the Yuan dynasty is the history of Beijing river system planning the most successful periods. The advanced play for river systems technologies are very representative. The thesis from the influence of river system on the location and the urban pattern of the Yuan Dynasty and river diversion system and drainage system of the Yuan Dynasty analysis on play for Yuan Dadu river system of gains and losses. Select the dam, sluice and water gate as the representative of the hydraulic structure as the research object. Hope that the construction of hydraulic structures, river, river system is the point, line, surface three-dimensional relationship. The research on hydraulic structures is not limited to the Yuan Dynasty, it is not limited to Yuan Dadu. through the analysis comparison Song, Yuan, Ming and Qing Dynasties hydraulic structure rules and regulations, I summarizes the shape characteristics of hydraulic buildings in Yuan Dynasty and further examine on play for river systems of Yuan Dadu from the point of view of Engineering Technology. This paper has originality research in water gate. Through the study of the arch span, both sides of the Shek Pik height, sluice gate shape and landing device, gatehouse shape and fill some details and blank of “juan ju shui chuang” of Yingzao Fashi in Song dynasty. the wooden "lintel" gate to the direct cause of the transformation of the masonry arch gate. I made a bold inference is in the song and Yuan Dynasties arch "water gate" result in a wooden lintel gate to the transformation of the masonry arch gate.