在流域规划阶段对施工方面应该考虑的问题一般分为两部分:一为施工组织的规划,一为工程造价的估算。前者对第一期工程的考虑比较详细;对远景阶梯工程的考虑则极为粗略,一般仅作施工及导流方法合理性的判断,并不进行其他任何计算。后者对于第一期工程与远景方案,在工程单价方面分别不大;唯对第一期工程的准备工程费用及机械 In the planning stage of river basin, the problems that should be considered in construction are generally divided into two parts: one is the planning of construction organization and the other is the estimation of construction cost. The former considers the first phase of the project in more detail. The consideration of the long-term ladder project is extremely rough. Generally, it only makes judgments on the rationality of construction and diversion methods and does not make any other calculations. The latter for the first phase of the project and long-term program, the unit price of the project are not large; only the first phase of the project construction costs and machinery