一、前言流域规划阶段的水工计算是初步设计与计划任务书以前的一个简单的最初计算。它的目的是解决规划报告中所提出的一系列的水利枢纽的技术上的可能性与经济上的合理性,从而选择第一期工程,确定流域规划方案中最近期间的开发措施。为了使开发方案中的各级水利枢纽便于比较,流域规划的水工计算标准必须是一致的。水工布置应该尽量采用普通的、简单的形式。在水工计算上,应该是统一的、合理的、能够进行比较的。在地质地形条件相差不远、资料了解尚不充分的情况 I. Preface Hydraulic engineering in the basin planning stage is a simple initial calculation before preliminary design and planning tasks. Its purpose is to solve the technical feasibility and economic rationality of a series of water control hubs proposed in the planning report, so as to select the first phase of a project and determine the development measures in the recent planning period of the river basin. In order to facilitate the comparison of all levels of a water control project in a development program, the standard for hydraulic engineering in river basin planning must be consistent. Hydraulic layout should try to use ordinary, simple form. In hydraulic calculation, it should be uniform, reasonable, and can be compared. Not far from the geological conditions in the terrain, the information is not fully understood