拔贡水电站改扩建工程枢纽布置设计

拔贡水电站改扩建工程枢纽由挡水、泄水、电站等建筑物组成。结合地形地质条件及维持原电站的运行特征水位，不产生新的淹没问题的条件，并考虑管理方便、经济、安全等要素，介绍了电站枢纽布置设计及比选过程。经过比较分析，最终选择了左岸灯泡贯流式厂房＋右岸自由溢流坝的枢纽布置方案。

General Layout Design for Extension Project of Bagong Hydropower Station

The extension project of Bagong hydropower station consists of water-retaining structures, spillway and powerhouse etc. The general layout design of the extension project was proposed based on the topographic and geolog- ic conditions and the requirements on keeping normal pool level of the original station as well as other factors such as convenient management, economic indicators and safety etc. Through comparisons, the extension project adopted a bulb tubular powerhouse at the left bank and a free overflow dam at the right hnnk