安谷水电站消能防冲布置方案优化

Optimization of energy dissipation and antiscour arrangement for Angu Hydropower Station

安谷水电站布置在山区转平原入口的冲积扇上,枢纽消能防冲的方案设计关系到建筑物的安全和下游河床河岸的稳定.本文通过整体水工模型实验,在原设计方案的基础上,对枢纽的消能防冲方案进行优化,对比分析了闸下消力池池内及出口处的水流流态、流速分布及闸下消能率.提出的优化方案简化了消能工的结构,节省了工程量,较好地解决了消能防冲问题.

Angu Hydropower Station is located in the alluvial fan where the mountains disappear into the plain. The design proposal of the energy dissipation and antiscour is related to building safety and the stability of downstream riverbed and riverbank. This paper conducts an overall hydraulic model experiment, then, based on the original design, optimizes the energy dissipation and antiscour proposal, and analyzes flow regime, velocity distribution within and outside the stilling and coefficient of energy dissipation. The proposed optimization solution simplifies the structure of energy work, saves the engineering quantity, and effectively solves the energy dissipation and antiscour question.