勿甫引水枢纽工程泄洪闸水工模型试验分析

Analysis on Hydraulic Model Test of Spillway Sluice of Wufu Water Diversion Hub Project

勿甫引水枢纽是叶尔羌河第二级引水渠首工程,修建的工程任务是在原闸址处建设新引水枢纽。根据水利相似原理,对泄洪闸进行水工模型试验分析,结果表明:泄洪闸的泄流能力均满足设计要求;泄洪闸控泄时,控制上游水位1329.70 m及下游水位1328.45 m。泄洪闸明满过渡时闸门开度为1.51 m;泄洪冲沙闸的水力学计算满足过流要求,设计的闸室孔口尺寸满足泄流时的开度要求,设计基本合理。可为枢纽方案布置的确定以及泄水建筑物合理运用方式的选择提供科学依据。

Wufu diversion hub is the first project of the second-stage diversion channel of the Yeerjiang River. The construction task is to construct a new diversion hub at the original gate site. According to the principle of water conservancy similarity, the hydraulic model test analysis of the floodgate is carried out. The results show that the discharge capacity of the floodgate meets the design requirements;when the floodgate is controlled, the upstream water level is controlled at 1319.70m and the downstream water level is 1328.45m. When the flood gate is fully transitioned, the gate opening is 1.51m. The hydraulic calculation of the flood discharge and sluice gate meets the requirements of over-current, and the design of the orifice of the gate chamber meets the opening requirements of the discharge, and the design is basically reasonable. It can provide a scientific basis for the determination of the layout of the hub plan and the choice of the rational use of the drainage structure.