沙洲水电站枢纽方案设计书说明书.docVIP

本科毕业设计说明书 题 目 沙洲水电枢纽拱坝设计（含体型比较） 学 院 水利水电学院 专 业 水利水电工程 　 学生姓名 000 　 学 号 000000000000000 年级 2007级 　 指导教师 qqq 　 二0一一 年 六 月 二日 沙洲水电枢纽拱坝设计（含体形比较） (水利水电工程专业) 学生：000 指导老师：000 摘 要：沙洲水电枢纽是木里河干流开发的最后梯级，位于木里河中下游。主要开发任务是发电，采用混合式开发，兼顾下游生态用水。枢纽建筑物主要由双曲薄拱坝、坝身泄洪孔、引水隧洞、地面厂房组成。依据水利水电工程设计规范，以及参考各种资料文献，对沙洲水电枢纽大坝进行了初步设计，首先，在充分收集资料的基础上，依据规范等确定工程等级及洪水标准，并利用列表法及程序法进行调洪演算，确定拱坝泄水建筑物的形式、尺寸及设计洪水位、校核洪水位等特征水位。其次进行拱坝的设计，包括单曲拱坝和双曲拱坝。接着利用拱冠梁法进行应力分析，并通过刚体极限平衡法进行拱座三维块体的稳定分析。根据应力、稳定计算结果，并结合拱坝的平面、剖面形式进行体型比选，选定双曲拱坝为最终布置形式。最后，在各项设计均符合规范的基础上，对拱坝进行了细部构造的设计。设计的重点落在拱坝枢纽布置和体型比选两大方面。提交的成果有说明书、计算书各一份，工程图纸四张。 关键词：单曲拱坝；双曲拱坝；体型比选；拱圈；拱冠梁；应力分析；稳定验算 Design for Shazhou Hydropower Project of Muli River Designed by aaa Tutor:aaa Abstract: Shazhou hydropower project is the last cascade of Muli main river, which is located between the midstream and downstream of Muli.Its primary function is power generation. It adopts hybrid exploitation and is mainly composed by concrete arch dam, outlets in dam body, derivation tunnel and ground workshop. According to the design standards of water resource and hydroelectric engineering, the Handbook of Hydraulic Structure Design, as well as other references, the preliminary arch dam has been carried on. Firstly, relying on the basic design material, the gradation of the Shazhou hydropower project has been segmented, and the return period of flood has been obtained. Then compute the design flood level, the exception flood level and the size of the outlet holes by reservoirrouting which is carried on by schedule method and computer. Secondly, design the curvature arch dam shape, including the design of single arch dam and double- curvature. The stress analysis is carried on by multi-arch beam method while the analysis of stability against