【摘要】 以超高拱坝拱座及抗力体抗滑稳定中主要工程地质问题为研究重点,总结研究了二滩、锦屏一级、溪洛渡、大岗山、拉西瓦、小湾等水电站特高拱坝左右岸抗滑稳定条件、底滑面及侧滑面和滑移组合模式分析、结构面参数取值、抗力体地质缺陷分析及处理、地下水及岩体渗透性影响。针对上述特高拱坝的抗力体及拱座地质缺陷,归纳总结了抗滑稳定分析评价方法、结论及其处理经验。相关经验可为今后类似工程提供可借鉴的技术依据。更多还原

【Abstract】 In this paper, the main engineering geological problems of anti-sliding stability of arch abutment and resistance body of super high arch dams in China are studied. The research mainly contains the anti-sliding stability of abutments, the bottom slip surface and the lateral slip surface and slip combination model, the structural plane parameters, the analysis and treatment of the geological defects of the resistance body, the influence of groundwater and permeability of the rock mass for six super high arch dams, i.e, Ertan, Jinping I, Xiluodu, Dagangshan, Laxiwa and Xiaowan Hydropower Stations. The experiences of anti-sliding stability analysis and defects treatment of arch abutment and resistance body are also summarized. It can provide a reference for the similar projects in future.更多还原