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提高岩基混凝土重力坝沿坝底抗滑稳定性的工程措施
引用本文:王宏硕,陆述远,李步娟.提高岩基混凝土重力坝沿坝底抗滑稳定性的工程措施[J].武汉大学学报(工学版),1986(2).
作者姓名:王宏硕  陆述远  李步娟
作者单位:武汉水利电力学院水利水电工程建筑及施工系 (王宏硕,陆述远),武汉水利电力学院水利水电工程建筑及施工系(李步娟)
摘    要:本文以坝底最不利点未达到屈服状态作为稳定准则,并采用了真实弹性抗剪强度这一新概念,研究讨论了在弹性工作状态下,混凝土重力坝坝底应力分布和抗滑稳定性,提出了改善坝底应力分布和提高其抗滑稳定性的工程措施。并证明了设置托承和在坝踵处设置人工缝对减小坝踵区附近的拉应力有更显著的效果。

关 键 词:岩石基础  重力坝  应力  稳定分析  措施

Engineerng Measures for Increasing Stability against Sliding along the Base of Concrete Gravity Dams on Rock Foundation
Wang Hongshuo, Lu Shuyuan, Li Bujuan.Engineerng Measures for Increasing Stability against Sliding along the Base of Concrete Gravity Dams on Rock Foundation[J].Engineering Journal of Wuhan University,1986(2).
Authors:Wang Hongshuo  Lu Shuyuan  Li Bujuan
Affiliation:Wang Hongshuo; Lu Shuyuan; Li Bujuan
Abstract:A suggestion that the stress state of the most unfavourable point for shear on the dam bas remains lower than the yield point is presented as the creteria of stability, and a new concept, the real elastic shear strength is adopted. The stress distribution and stability against sliding under elastic state along the base of concrete gravity dams are discussed, and the engineering measures for improving stress and increasing stability against sliding are proposed. It is proved that the effect of the fillet and the man-made crack at dam heel for decreasing tensile stress around the heel is obvious.
Keywords:rock foundation gravity dam  stress  stability analysis  measures
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