发布时间 : 星期一 文章积石峡水电站枢纽布置及均质土坝设计更新完毕开始阅读f2bfd84edf80d4d8d15abe23482fb4daa48d1d6a
毕业设计（论文）
说明书
题 目 积石峡水电站枢纽布置及均质土坝设计 专 业 水利水电工程 班 级 学 生 指导教师
2015 年
积石峡水电站枢纽布置及均质坝设计
摘 要
土石坝作为世界应用最多的坝型，不但在数量上施工工艺占有绝对优势，而且在高坝中也有不错的前景。设计说明书对积石峡水利枢纽进行了较为详细的设计。大坝坝体为均质坝坝，最大坝高为95m。泄水建筑物为表孔溢流式的溢洪道和深孔无压式的泄洪洞。引水隧洞为有压式。
主要的设计内容包括:采用半图解法进行调洪计算；枢纽布置的详细说明；详细的论述大坝剖面设计的过程；针对溢洪道和泄洪洞，进行了详细的设计与水面线计算；通过水力学方法进行渗流分析；通过采用瑞典圆弧法进行坝坡稳定计算；并结合坝址的地质特点，详细的设计了坝体、坝基开挖、帷幕灌浆、断层破碎带的处理等。
本次设计是根据碾压式土石坝设计规范系统的对积石峡水电站枢纽部分的设计和演算。
所提交的成果包括：计算说明书一份，CAD图纸共9张。
关键字：积石峡均质坝；溢洪道设计；稳定分析；调洪演算
Design of station layout and homogeneous dam
of Jishixia Hydropower
2
ABSTRACT
Earth rock dams can be used as the world most dam type, not only in the number of construction technology occupies absolute advantage, but also has a good prospect in the dam.The design specification of the detailed design of Jishixia Gorge Water conservancy.The dam is a homogeneous dam, the dam height is 95m.Water release structures which are flood discharge tunnel and spillway tunnel is free-flow outlet. The diversion tunnel for pressure.
The design of the main content includes: flood regulating calculation using semigraphical method; hub layout in detail; detail dam section design process; for spillway and spillway tunnel, detailed design and the water surface line calculation; the hydraulic method is used in seepage analysis; through the use of Sweden Arc Method for dam slope stability calculation; and combined with the geological characteristics of the dam site, detailed design dam, dam foundation excavation, curtain grouting, fault fracture zone.
This design is based on the design specification of rolled embankment dam system of Jishixia Hydropower Station hub part design and calculation.
The submitted results include: Calculation of a manual, CAD total of 9 drawings.
Key Words:Jishixia homogeneous dam; The design of spillway;
Stability analysis; Flood diversion calculation
目录
3
第1章 工程概述 ............................................................................... 5
1.1 工程概况 ................................................................................. 5 1.2工程特征表 .............................................................................. 6 1.3设计说明 .................................................................................. 8
1.3.1设计阶段 ........................................................................ 8 1.3.2设计任务 ........................................................................ 8 1.3.3设计依据 ........................................................................ 9 2.1.1流域概况 ........................................................................ 9
第3章 调洪计算 ............................................................................. 17
3.1调洪计算说明 ........................................................................ 17 3.1.1调洪计算目的 ..................................................................... 17 3.1.2调洪演算的原理................................................................ 17 3.2调洪计算结果整理 ............................................................... 18
3.2.1调洪演算基本资料 .................................................... 18 3.2.2调洪计算过程及结果 .................................................. 20
第5章 枢纽布置 ............................................................................. 39
5.1坝址比选 ................................................................................ 39 5.2坝轴线比选 ........................................................................... 40 5.3坝型比选 ................................................................................ 40 5.4枢纽布置 ................................................................................ 40 第6章 建筑物设计 ......................................................................... 41
6.1剖面设计 ................................................................................ 41
6.1.1坝顶高程 ...................................................................... 41 6.1.2坝顶宽度 .................................................................... 45 6.1.3坝高 .............................................................................. 45 6.1.4坝坡 .............................................................................. 45 6.2泄洪洞设计 ............................................................................ 45
6.2.1泄洪洞说明 .................................................................. 45 6.2.2体型设计 ...................................................................... 46 6.2.3水面线计算 .................................................................. 48 6.3.2渗流分析计算 .............................................................. 51 第7章 溢洪道设计 ............................................................. 70 7.1溢洪道说明 ..................................................................... 70 8.3帷幕灌浆 ............................................................................ 80
4