江口水电站枢纽总体布置

摘要

Jiangkou hydropower station has a total reservoir storage of 497Mm3and an installed capacity of 300 MW. The maximum height of the concrete double curvature arch dam is 139 m.The hydro compex is of grade -Ⅱ project.In consideration of the topographic and geologic conditions at the dam site,and of the features of all main structures,the general layout scheme of the hydro complex is selected after a comprehensive comparison.In this layout,the water-retaining and water-releasing structure i.e.the concrete arch dam,is arranged on the river bed,and the underground power house on the left bank and the water diversion tunnel on the right bank.The artificial aggregate system and the high concrete mixing system are arranged at the gentle Dingjia col on the right bank,downstream form the dam.%江口水电站总库容4.97亿m3，装机300MW，混凝土双曲拱坝最大坝高139m，枢纽工程属Ⅱ等。通过对地形、地质，并结合各主要建筑物的特点，经综合比较后选定枢纽总体布置方案。江口水电站枢纽布置为：河床布置挡泄水建筑物混凝土双曲拱坝、左岸布置地下式厂房、右岸布置导流隧洞，利用坝下游右岸地形较平缓的丁家坳布置人工砂石系统及高混凝土拌合系统。