Author(s): Yanyu Chen, Yuefen Zhao, Haitao Wu, Jie Liu, Yehan Geng, Hongbo Wang
Linked Author(s): Zhao Yuefen
Keywords: Hydraulic elevator dam, icy water retaining, unpowered dam dropping, water ecological civilization construction, landscape
Abstract: Based on a moveable weir project in the water ecological civilization construction of Dunhua City in Northeast China Region, this paper compares and analyzes the features, advantages and disadvantages of 4 common types of moveable dams: hydraulic elevator dam, bottom shaft driven steel gate, fix bar locked hydraulic elevator dam and gas shield dam based on the hydrological and geological status of Mudan River. From this study, it is found that the hydraulic elevator dam (HED) is the most preferred dam type. This paper also summarizes major design parameters and the actual construction effect of the project. The project demonstrates that HED is safe on both metal structure and control system after 2 years of overwinter operation, and hence puts forward the new idea that HED is a suitable moveable dam for retaining icy water without deicing treatment and is applicable for the hilly or urban river where the flood rises quickly
Year: 2017