文档介绍：某水电站枢纽布置设计
摘要:勐乃水电站位于云南省槟榔江上, 开发任务为水力发电。本设计中大坝选定为混凝土重力坝,,坝轴线总长为161m。本枢纽的主体工程由非溢流坝段、溢流坝段、进水口坝段及其建筑物组成。非溢流坝主要是确定基本剖面,然后校核坝基面抗滑稳定和坝体强度是否满足要求,溢流坝主要确定了堰顶高程、孔口尺寸及堰面曲线,验算溢流坝段的泄流能力,并对底流消能做了设计。排架柱是设计深入部分,主要确定了柱的截面尺寸并对柱进行合理的配筋。另外,还对坝体的一些细部构造进行了设计。
Abstract: Mongnai power station is on the section of the Bing lang Jiang in Yunnan Province,development tasks for the hydro-electric power The type of the Dam is concrete gravity dam. The largest dam height is , the total length of dam is 161 m. The main part of this project is the non-overflow dam, the spillway, the intake section and their ancillary buildings. The non-spillway dam is usually used to affirm the fundamental cutaway section, and then check the dam foundation and dam stability against sliding surface meets the requirements of strength. The spillway dam mainly takes a main part in the process of identifying the top elevation weir, the size of the dam and the weir curve, reaffirming the leaking stream capability. It also makes a solution about how to get rid of the energy dissipation at the bottom. The Bent column which affirms the size of its cross section dimension and matches proper tendon with it is the deep part of the design. In addition to these, it also makes some design in detailed structures.
关键词:混凝土重力坝,非溢流坝,溢流坝,进水口,排架柱。
Keywords:Concrete Gravity Dam,Non-spillway dam,Spillway,inflow orifice,Column bent.
1 工程设计资料
槟榔江为大盈江右岸一级支流,槟榔江勐乃水电站位于盈江县盏西乡境内的槟榔江中下游河段,电站距盈江县城88km,距昆明市786km。
Km2,,‰。,、。设计引用流量107m3/s。
图(一) 槟榔江勐乃水电站坝址设计洪水成果表(单位:m3/s)
项目
频率(%)
1
2
5
10
20
坝址流量
1474
1300
1072
898
724
690
587
406
324
因槟榔江勐乃水电站的坝址及厂址位置很接近,,厂址的洪水成果直接移用坝址的洪水成果。
,,。挡水建筑物最大坝高不超过50m,电站装机容量不超过25MW。根据《水电枢纽工程等级划分及设计安全标准》(DL5180-2003)和《小型水力发电站设计规范》(GB50071-2002)规定,本工程为Ⅳ等小⑴型工程。
主要建筑物(挡水建筑物、泄洪建筑物、引水发电建筑物)为4
级。次要建筑物为5级。临时性建筑物为