我国特高拱坝的建设成就与技术发展综述

结合二滩、溪洛渡、锦屏一级、大岗山、小湾等一系列特高拱坝的建设实践,总结了我国特高拱坝的建设成就,阐述了我国特高拱坝建设关键技术的研究进展,包括建基面的研究与确定、体形优化设计、应力分析与强度设计、拱座抗滑稳定、整体稳定、抗震设计、混凝土材料、混凝土温控防裂、基础处理、施工技术等10个方面的内容。认为我国混凝土拱坝建设技术已处于国际领先水平,指出我国特高拱坝建设需深化研究的4个问题,即特高拱坝安全评价体系建设、特高拱坝风险设计、特高拱坝抗震研究以及特高拱坝安全运行健康诊断技术研究。

Review of construction achievements and technological development of super-high arch dam in China

Based on construction and operation of a series of super-high arch dams in China, such as the Ertan Arch Dam, Xiluodu Arch Dam, Jinping-I Arch Dam, Dagangshan Arch Dam, and Xiaowan Arch Dam, construction achievements of super-high arch dams are summarized, and advances in key technologies for super-high arch dam construction are described, including determination of arch dam foundation, shape optimization design, stress analysis and strength design, techniques for stability of dam foundation against sliding, techniques for dam body stability, anti-seismic design, concrete material study, and temperature control and crack prevention of concrete, foundation treatment, and construction technology. It is suggested that construction technology of concrete arch dams in China has reached an internationally leading level. It is pointed out that four issues in construction of super-high arch dams should be further studied: construction of dam safety evaluation systems, dam risk design, anti-seismic measures, and dam health diagnosis technology.