大藤峡水利枢纽总体布置研究

Studies on general layout of Datengxia Hydraulic Project

大藤峡水利枢纽是西江水系集防洪、航运、发电、补水压咸和灌溉等综合利用于一体的流域控制性工程。前期勘察设计历时较长,期间工程任务及规模均有不同程度的变化,受其影响,坝址、坝线及建筑物规模也进行了多次调整。针对选定的工程规模,依据坝址地形地质条件,结合施工导流方式、施工期通航安全、充分考虑初期发电效益,对影响坝线选择及枢纽总体布置的船闸、厂房进行多方案比选,最终确定枢纽布置方案。

Datengxia Hydraulic Project,as a control works of the Xijiang River Basin,integrates the benefits of flood control,navigation,power generation,supplement freshwater to reduce saltwater intrusion and irrigation.Owing to the long period of reconanssance and design,changes of missions and scale of the project,it has experienced several adjustments for the dam site,dam axis and structure scale.According to the engineering scale and topographical and geological conditions of the dam site,multi-scheme comparison has been made to the dam axis and general layout of shiplock and power plant,with considerations to the diversion method,navigation safety during the construction period,power generation in the early stage,which helps to determine the general layout of the hydraulic project.