苏只水电站坝前支沟泥沙调查分析及枢纽防沙措施

Investigation and analysis of gully sediment before the Suzhi dam and preventive measures

苏只水电站坝前400～600m范围内有2条较大的支沟——甘都沟和苏只沟,支沟距坝较近,其泥沙对电站的威胁较大,苏只水电站的主要泥沙问题是研究解决坝前2条支沟的泥沙问题。通过对支沟水沙调查分析计算,确定了支沟入库水沙特性。通过模型试验和入库水沙分析提出的水库泥沙调度运行方式及防排沙措施,基本解决了电站的主要泥沙问题。

There are 2 large gullies, the Gangdu gully and Suzhi gully, within the range of 400 - 600 m before the Suzhi dam. They are so close to the dam that the sediment from them would affect the operation of the hydropower project. It is important to solve the sediment from the two gullies. By analysis and calculation of the gully sediment, the characteristics of the inflowing sediment are determined. Through model test and analysis of inflowing sediment, reservoir sediment regulation mode and sand sluicing measures are proposed and the main problem of sedimentation is basically solved.