大西沟管道引水工程设计方案

Design scheme of Daxigou pipeline diversion project

大西沟引水管道总水头落差大、距离长、单级静水压力大、消能阀上、下游压差大、冬季气温低、上游河道总输砂量大、压力分区多,致使输水系统联动复杂,设计难点比较突出。本文针对以上设计难点分别提出了设计方案。

Daxigou diversion pipeline is characterized by large total head drop,long distance,high single-stage hy⁃drostatic pressure,large pressure difference between upstream and downstream of energy dissipation valve,low tem⁃perature in winter,large total sand transport in upstream river,many pressure zones leading to complicated linkage of water transmission system.Design scheme is put forward in view of the above mentioned design difficulties.