一、概述在狭窄河谷修建高水头水电站,除了有时遇到的通航建筑物之外,枢纽的合理布置就是主要建筑物——大坝、电厂、泄洪建筑物相互间位置的优化选择。这个问题受水文、地质、地形、水工、施工等多方面因素所制约,包括导流工程的布置。当河谷愈窄、电厂装机愈多、泄洪流量愈大时,峡谷高坝枢纽布置的难 I. Overview The construction of a high-head hydropower station in a narrow valley requires an optimized layout of the main buildings - dams, power plants and flood discharging structures, in addition to the sometimes encountered navigable structures. This issue is subject to various factors such as hydrology, geology, topography, hydraulic engineering and construction, including the layout of diversion works. When the river valley is narrower, the more the power plant is installed, the greater the flood discharge flow, the difficulty of the dam canyon layout