裕溪节制闸除险加固工程须在老闸上游重建新闸,新老闸在闸底板高程、闸室总净宽等方面变化较大,致使枢纽泄流能力、上下游流态等方面也产生较大变化。老闸浅孔闸闸底板的撤除利用方式直接影响着新闸闸下的消能防冲条件和除险加固工程工程量,为统筹协调各方面的要求须进行模型试验以对枢纽进行优化研究。本文通过对枢纽四个布置方案进行比较研究,将原设计方案的水闸胸墙抬高0.5m,优化老闸闸底板的施工方案,取得了很好的效果。 Yuxi Barrier Rehabilitation project must be in the old gates to rebuild a new gate, the new gate in the sluice floor elevation, the total net gate wide changes in areas such as larger, resulting in hub discharge capacity, upstream and downstream flow regimes also have to produce Big change. The removal and utilization of the sluice sluice floor of the old sluice gate directly affects the energy-saving and anti-scouring conditions under the new sluice gate and the amount of project of risk elimination and reinforcement works. In order to co-ordinate various requirements, model tests are to be carried out to optimize the hub. In this paper, through the comparative study of the four layout schemes of the hub, the sluice chest wall of the original design scheme is raised by 0.5m to optimize the construction scheme of the sluice gate and achieve good results.