沙坪二级水电站取消厂房冲沙孔的可行性研究

Feasibility study of cancel powerhouse sluicing sand hole in Shaping second-cascade hydropower station

沙坪二级水电站位于大渡河干流,采用河床式厂房布置。随着可研阶段勘测设计工作的深入,通过论证分析,并经过水工模型试验验证后,决定取消厂房冲沙孔布置。取消厂房冲沙孔后,厂房长度可缩短13.5 m,同时降低了厂房边坡支护难度,减少了工程投资。

The Shaping second-cascade hydropower station is located in the main stream of Dadu River,and its layout of powerhouse in river channel is adopted.Following with the survey and design work during the feasibility research stage,the layout of powerhouse sluicing sand hole is canceled through the argumentation analysis and the test verify of hydraulic model.The result is that the length of powerhouse is shortened with the 13.5m,the protection difficulty of powerhouse slope is reduced and the engineering investment is saved.