樱子水电站设计（大坝、厂房部分）之三水利工程专业.doc

第 1页 贵州樱子水电站设计（大坝、厂房部分）之三 (正常蓄水位：1382.249m) 摘 要 贵州樱子河电站水库无防洪、航运、灌溉等任务，电站建成后的主要任务是发电，水库的正常蓄水位及设计洪水位1388.40m，校核洪水位1390.164m，死水位1385.00m，水库的兴利库容为95万m3，水库的死库容为679万m3总库容为813万m3；电站的多年平均发电量为6470万kW·h，装机容量为1.6万kW，保证出力为1496kW，设计水头是39.8m，设计援用流量为46.0m3/s，大坝和水电站的工程大小均属于小(1)型，且工程级别为Ⅳ级。该电站的主要建筑物有：冲沙底孔、主副厂房，升压站，大坝、引水建筑物。 大坝是一变圆心变外半径的双曲拱坝，坝体的最上面高度为69.347m，坝体的最下面厚度为11.600m，坝顶宽5.000m。为防止坝基渗漏，在坝基靠近上游侧进行帷幕灌浆，并且为了减少坝基的扬压力，灌浆帷幕的后面是排水孔。 樱子水电站为径流式电站，用混凝土双曲拱坝住当水位形成发电水头，应用左岸隧洞引水发电，厂房和开关站均为地上式。本次毕业设计为贵州樱子河水电站的初步设计，设计内容主要有：引水建筑物布置、水电站厂房设计、工程总枢纽布置、大坝布置及应力和稳定计算、冲沙底孔布置。 关键词：双曲拱坝，引水建筑物，取水口，冲沙底孔，厂房。 Abstract Guizhou yingzi River hydropower station reservoir flood control, shipping, irrigation and other tasks, power station after the completion of the main task is power, the reservoir normal water level and the design flood level 1389.00m and check flood level 1389.64m water level 1385.00m die, dead storage reservoirs 679 million m3, Hennessy capacity 95 million m3, with a total capacity of 813 million m3; plant annual average generating capacity for 64.7 million kW / h, installed capacity is 1.6 million KW, ensures that the output 1496kW, design head is 39.8m, design reference flow 46.0m3/s, reservoir and power station engineering scale are small (1) type, and the engineering level to the fourth grade. The main building of the power station are: dam, diversion structures, sand bottom, main and auxiliary power plant, booster station. The dam is a double curvature arch dam variable centres outside radius, the maximum dam height of 69.347m, bottom thickness 11.600m, the width of 5.000m. To prevent dam foundation leakage, the curtain grouting is carried out near the dam foundation, and the uplift pressure of dam foundation is reduced, and the drainage hole is arranged after grouting curtain.. Yingzi hydropower station on Regulating Runoff of hydropower station, the concrete hyperbolic arch dam to intercept water generation head, the left bank diversion tunnel, workshop and switch station are on the ground. The graduation design for the preliminary design of Guizhou yingzi River hydropower station, design content mainly includes: dam layout and force and stability calculation, red sand bottom hole layout, diversion tunnel layout, hydropower station plant design, engineering,general layout of the project. . Keywords: hyperbolic arch dam, diversion structures, sand bottom, plant III 目录 摘 要................................................................I ABSTRACT...........................................................II 第一章综合说明 .....................................................3 1.1 概述...........................................................3 1.1.1 工程概况 .................................................. 3 1.1.2 设计要求....................................................4 1.2 工程特性表.....................................................4 1.2.1 水库特性表 .................................................4 1.2.2 樱子河径流年内分配表.......................................4 1.2.2 樱子河电站设计洪水成果表.................................4 1.2.4 施工设计洪水成果表..........................................5 第二章 设计资料....................................................6 2.1 枢纽任务......................................................6 2.2 地 质 ....................................................6 2.2.1 区域地质概况.............................................6 2.2.2 水库区工程地质条件.......................................7 2.2.3 坝址区工程地质条件.......................................7 2.2.4 引水系统工程地质条件.....................................8 2.2.5 厂房及开关站工程地质条件.................................9 2.2.6 天然建筑材料.............................................9 2.2.7 主要工程地质结论.........................................9 第三章 规模 ......................................................11 3.1 水库规模 .................................................11 3.1.1 正常蓄水位选择..........................................11 3.1.2 死水位选择..............................................11 3.1.3 装机容量的选择..........................................11 3.2 工程选址、选线及总布置.....................................12 3.2.1 坝址选择...............................................12 3.2.2 厂址选择...............................................13 3.2.3 坝线选择...............................................13 第四章 机电施工及环境保护 ........................................14 4.1 机电及金属结构...............................................14 4.1.1 水力机械及主要附属设备...................................14 4.1.2 采暖通风.................................................15 4.1.3 接入系统方式及电气主接线.................................15 4.2 消防.........................................................15 4.3 施工.................................................