玉树州查隆通水电站导流洞设计

目录

第一章绪论 (1)

1.1概述 (1)

1.2 工程条件 (1)

1.2.1 气象 (1)

1.2.2 水文 (1)

1.2.2 工程地质 (2)

1.3 工程任务和规模 (3)

1.3.1 工程建设任务 (3)

1.3.2 工程建设规模 (3)

1.4 工程选址、工程布置及建筑物设计 (3)

1.4.1 工程等别和标准 (3)

1.4.2 工程选址和基本坝型选择 (4)

1.4.3 工程总布置及主要建筑物 (4)

1.5 工程施工 (5)

1.6 经济评价结论 (5)

第二章水文 (7)

2.1 流域概况 (7)

2.2 气象 (7)

2.3 水文站基本情况 (7)

2.4 设计径流 (7)

2.4.1 多年平均径流量 (7)

2.4.2 设计径流及其年内分配 (10)

2.4.3 枯水径流 (15)

2.4.4 生态基流 (15)

2.5 设计洪水 (15)

2.5.1 暴雨特性 (15)

2.5.2 历史洪水调查 (15)

2.5.3 洪水资料插补延长 (15)

2.5.4 设计洪水成果 (16)

2.5.5 拟建电站坝址处设计洪水 (17)

2.5.6 拟建电站坝址处设计洪水过程线 (17)

2.6 泥沙 (21)

2.7 冰情 (21)

第三章地质 (23)

3.1区域地质 (23)

3.1.1地形地貌 (23)

3.1.2地层岩性 (23)

3.1.3地质构造与地震 (24)

3.2水库工程地质条件 (25)

3.2.1基本地质条件 (25)

3.2.2主要工程地质问题及评价 (27)

第四章导流建筑物总体布置 (29)

4.1导流建筑物工程地质条件 (29)

4.2导流隧洞布置的基本原则 (30)

4.3导流洞布置 (30)

4.3.1导流明渠段 (30)

4.3.2隧洞进口段 (31)

4.3.3洞身段 (31)

4.3.4隧洞出口段 (31)

4.3.5出口明渠段 (31)

4.4上游围堰布置 (31)

4.5下游围堰布置 (31)

第五章围堰的设计 (33)

5.1平面布置 (33)

5.1.1上游围堰的平面布置及设计 (33)

5.1.2下游围堰的平面布置及设计 (33)

5.3围堰的防渗 (34)

5.4围堰的接头处理 (35)

5.5围堰的防冲 (35)

5.6围堰的拆除 (35)

第六章导流洞的设计 (37)

6.1导流洞的断面形式 (37)

6.2衬砌计算 (39)

6.2.1洞身衬砌截面形式及尺寸 (39)

6.2.2设计荷载 (39)

6.2.3衬砌材料 (39)

6.2.4计算简图及基本结构 (39)

6.2.5钢臂长度C的计算 (40)

6.2.6形常数计算 (40)

6.2.7载常数计算 (40)

6.2.8各截面弯矩值计算 (43)

表6-4 截面M值计算 (45)

6.2.9各截面轴向力计算 (45)

6.2.10内力计算校核 (46)

6.2.11截面应力计算 (47)

6.2.12截面应力验算 (47)

第七章消力池计算 (49)

7.1下游消能计算 (49)

7.1.1检查闸下水流衔接状态 (49)

7.1.2试求池深 (49)

7.2消力池池长计算 (50)

7.3消力池厚度 (50)

结论 (51)

附录 (53)

参考文献 (55)

致谢信 (57)

玉树州查隆通水电站导流洞设计

摘要

导流洞是一个临时的施工导流隧洞，它的特点之一是工期往往是很紧迫的，如果不能按期完成，就会造成整个工程的工期延长。水库运行时利用放水钢管对下游进行灌溉、人饮供水、生态基流放水并兼顾水库放空。因此，一定要根据现场的地质、地形情况，枢纽的规划任务，按照一洞多用的原则，恰当的采用的各建筑物布置形式。这样既可减小工程量、降低造价、有利于整个工程的流水行作业，又可大大提高工程进度。

本设计依据对玉树州查隆通水电站的两岸地质地形、水文等资料的研究总结，在水库右岸将导流洞与放水洞合一布置，将临时性的导流隧洞部分封堵改建为永久放水隧洞。在整个工程施工过程中用导流洞担任导流任务，在大坝建成后兼顾冲砂清淤、水库放空等任务。

查隆通水电站右岸导流泄洪洞设计流程为：水文地质和气象和两岸地质条件等资料的考察→总结设计所需基本资料→参考设计规范→导流洞部分设计→放水洞部分设计→下游消能防冲设计。各设计包括必要的水力计算、衬砌计算等计算说明。最终得出一套完整的导流放水洞以及上下游围堰图纸。

关键词：导流放水洞，水力计算，衬砌计算，体型设计

Yushu Charlon Through The Design Of

Hydropower Station Diversion Tunnel

Abstract

Diversion tunnel is a temporary construction of diversion tunnel, is one of the characteristics of its time limit for a project is often very urgent, if can not be completed on schedule, it will cause prolonged the duration of the whole project. The reservoir operation using steel discharge for irrigation, drinking water supply to the downstream, and taking into account theecological base flow water reservoir

emptying. Therefore, we must according to the geology and topography of the site, the hub of the planning task, in accordance with the principle of a multi hole, proper use of the building layout. This can reduce the engineering quantity, reduce the cost, is beneficial to the whole project of water do the job, but also greatly enhance the progress of the project.

According to the design of Yushu state Chalon sur pass hydropower station on both sides of the geological, geomorphological, hydrological data of the research summary, in the right bank of the reservoir will guide hole and a discharge hole close arrangement, temporary diversion tunnel partially blocked reconstruction is a permanent drainage tunnel. In the whole process of engineering construction in diversion tunnel as the diversion task, after the completion of the dam in both washed sand dredging, the emptying of the reservoir and other tasks.

Chalon sur pass hydropower station right bank diversion tunnel design process for: hydrological and meteorological and on both sides of the geological conditions of the study, summary design in the required basic data and reference design specification, diversion tunnel section design, drainage hole part of the design, energy dissipation downstream scour protection design. The design includes instructions for calculating, the necessary hydrauliclining computing etc.. Finally a complete set of water diversion tunnel and downstreamcofferdam.

Keywords:Water diversion tunnel, Hydraulic calculation, Lining calculation, Shape design