大藤峡工程金属结构布置与设计

Metal structure arrangement and design of Datengxia Project

大藤峡工程金属结构涉及泄水、发电、航运、灌溉和生态及鱼道系统等,闸门及启闭设备类型多,为做好金属结构布置与设计,前期开展了人字闸门结构、下闸首人字闸门、水动力及启闭特性研究,以及泄水高低孔弧形工作闸门流激振动试验及数值模拟等18项科学研究工作,解决了枢纽金属结构设计中的诸多重大技术难题。本文着重介绍枢纽泄水、发电和通航等系统金属结构设备布置与设计情况,详细阐述各部位闸门设计原则、技术参数和结构型式以及启闭设备的主要技术参数。

The metal structures of Datengxia Dam project relate to water release,power generation,navigation,irrigation and ecosystem and fish passage system,with involvement of varies types of sluice gates and opening and closing equipment.Aiming at solving the key technical issues with design of metal structures,a total of 18 scientific studies have been undertaken,including miter gate structure,lower head miter gate structure,hydrodynamic and opening and closing characteristic studies,flow induced vibration experiment for outlet hole of radial gate and numerical simulation and so on.It makes an introduction on the arrangement of metal structure equipment and design for water release,power generation and navigation.Detailed explanations are given to the principle of designing each part of the sluice gate,technical parameters and type of structure,and also the main technical parameters of opening and closing equipment.