枢纽布置及运行调度的防淤效果研究

本文总结了我国水利枢纽建设中存在的泥沙危害情况,归纳並分析了中、低水头枢纽设计中预防泥沙淤损和引水防沙的基本方法.根据某坝区模型试验情况,探讨了通过泄水建筑物的合理调度,减轻泥沙危害的可行性.关于在凸岸布置取水、通航建筑问题,本文结合几个实例,说明在一般情况下不宜采用,只有在某些特殊情况下,才能维持该区取水或通航建筑物的正常工作条件.

General Layout of Hydraulic Projects and Effects of Operation on Control of Sediment

In this paper the sedimentation problems existing in hydro-juntion constructions are summarized. Some basic methods of presenting the damage caused by sedimentation and controling sediment by water diversion which are applied in the design of medium head and low head water power stations are analysed. Based on the results of a hydraulic project model test. the possibility of reducing sediment damage by suitable operation of outlet structures is studied. The problems in arranging the diversion structures and navigation structures on the convex bank are discussed. Some examples show clearly that only under some special conditions could the normal working conditions of such structures in the convex area be maintained.