平安文祖口水库左岸溢洪道设计精要.doc

摘要 在水利枢纽中，必须设置泄水建筑物，溢洪道是一种最常见的泄水建筑物，用于宣泄规划库容所不能容纳的洪水，防止洪水漫溢坝顶，保证大坝安全。溢洪道除了应具备足够的泄流能力外，还要保证其在工作期间的自身安全和瞎写水流与原河道水流获得妥善的衔接。一些坝的失事，往往是由于溢洪道泄流能力不足或设计、运用不当而引起的。所以安全泄洪是水利枢纽中的重要问题。 平安文祖口水库是《青海省小型水库工程规划》中的17座水库之一，水库位于平安县祁家川流域天重河（亦叫东岔沟）之上，为半注入式年调节水库，由于水库的大坝采用土石坝，坝身不承担泄水，且河谷狭窄，故采用河岸溢洪道。溢流堰的堰型为实用堰，按照《溢洪道设计规范》SL253-2000中的规范要求，确定各部分的边坡及边墙的高度，确定溢流堰的堰面型式，最后根据底流消能的公式计算消力池的尺寸及构造。 关键词：文祖口水库，溢洪道，泄水能力，消能 ABSTRACT In the hydropower project, you must set the discharge structure, spillway is one of the most common discharge structures, capacity planning for catharsis can not accommodate the flood, to prevent overflowing flood crest ensure dam safety. In addition spillway should have sufficient discharge capacity, but also to ensure their own safety and Xia Xie water with the original river flow during operation to obtain proper convergence. Some dam accident, often due to inadequate spillway discharge capacity or design, caused by improper use. So hydropower project safety spillway is an important issue. Peace WenZu mouth reservoir is one small reservoir in Qinghai project planning in 17 reservoirs, reservoir located Ping an County Qijia Chuan River Basin days heavy (also called the East chagou) above, a semi-annual regulating reservoir injection, since dam reservoir using dam, dam discharge does not undertake, and the valley is narrow, so the use of riparian spillway. Weir type of weir, in accordance with the spillway design specifications SL253-2000 in regulatory requirements, determine the height of each part of the slope and side walls, determine weir surface type, final flow energy dissipation according to bottom the formula to calculate the stilling basin size and configuration. Keywords: WenZu mouth reservoir, spillway, discharge capacity, energy dissipation   目录 摘要 I Abstract III 1 绪论 1 2 溢洪道规划 3 2.1 基本资料的收集 3 2.1.1 水库地形、地质情况 3 2.1.2 库容 4 2.1.3 工程条件 6 2.1.4 工程等级 8 2.1.5 洪水标准 8 2.1.6 地震基本烈度及设防烈度 8 2.1.7工程特性表 9 2.2调洪演算 14 2.3 溢洪道的组成 15 3 溢洪道水力计算 17 3.1