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长江三峡围堰一期、二期工程的初设推荐方案为混凝土防渗心墙风化砂堰体型式。围堰的特点是堰体高、工程量大、断面结构复杂、施工工期紧,其复杂性和难度在国内外的建坝史上是罕见的。 在国家科委和水电部科技司主持的“三峡科研协调会”上有水利水电科学研究院等六个单位参加三峡围堰的研究工作。本文综合了水科院等六个单位的计算、研究成果,并对各种方案的计算成果进行了合理性和规律性分析,论证了初设方案的可靠性,为围堰设计寻求最优方案提供了依据。
The recommended scheme of the first phase and second phase of the Yangtze Three Gorges cofferdam is the weathered sandstone weir body type of concrete impervious core wall. Cofferdam is characterized by high weir, large amount of engineering, complex cross-section structure, construction period is tight, its complexity and difficulty in the history of the construction of the dam is rare. At the “Three Gorges Scientific Research Coordination Conference” hosted by the Science and Technology Department of the State Science and Technology Commission and the Ministry of Science and Technology of the Ministry of Water Resources, there are six units including the Water Resources and Hydropower Research Institute participating in the research work of the Three Gorges cofferdam. In this paper, the calculation and research results of six units such as the Hydrology Institute are integrated and the rationality and regularity of the calculation results of various schemes are analyzed. The reliability of the initial design scheme is demonstrated, and the optimal scheme is found for the design of the cofferdam Provided the basis.