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一、大川坝概要大川坝是日本建设省作为综合开发阿贺野川的一部分,正在该河干流中游施工的多目标工程。建坝的任务是,防洪、灌溉、生活供水、工业给水和发电(常规水电和抽水蓄能)。该坝高75米、坝体积100万立方米,水库总库容5750万立方米。坝体结构特点是在河床处有大型坝基底板(图1、2),这是由于基岩条件不好和
Outline of Okahashi Dam Okawaba is a multi-purpose project under construction in the middle reaches of the main river as part of the comprehensive development of Agano River in Japan’s Ministry of Construction. The dam’s task is to flood control, irrigation, domestic water supply, industrial water supply and power generation (conventional hydropower and pumped storage). The dam is 75 meters high, the dam volume of 1 million cubic meters, the reservoir total storage capacity of 57.5 million cubic meters. The dam structure is characterized by a large dam foundation at the riverbed (Figures 1 and 2) due to poor bedrock conditions and