小湾水电站拱坝下游冲刷平衡深度研究  

Study of Downstream Scoring Balance Depth of Xiaowan Hydropower Project

作　　者：李玉柱[1] 冬俊瑞[1] 刘沛清[1] 

机构地区：[1]清华大学水利水电工程系

出　　处：《云南水力发电》1998年第4期47-50,共4页Yunnan Water Power

基　　金："八五"国家重点科技攻关项目

摘　　要：针对小湾工程特点，采用理论分析和试验相结合，建立基岩冲刷平衡深度预报公式；用改进的能量指标法估算；采用放大岩块法进行断面模型试验等三种方法对小湾水电站拱坝下游冲刷平衡深度问题进行综合论证研究。三种方法预报的最大冲刷平衡深度均小于１５ｍ，而且能相互验证，大大提高了成果的可信度。The authors have made a comprehensive justification study of the downstream scoring balance depth problem of the Xiaowan arch dam in the light of the characteristics of the Xiaowan Hydropower Project using three methods , namely, establishing a bedrock scoring balance depth forecasting formula based on theoretical analysis and test , making evaluation using an improved energy index method and carrying out section model test using an amplifying rock method. The max. scoring blaance depths forecasted using these three methods are all less that 15m respectively,which can be tested and verified from each other, thus greatly improving credibility of the results.

关 键 词：小湾水电站 冲刷平衡深度 拱坝 下游 能量指标法 

分 类 号：TV147.5[水利工程—水力学及河流动力学]