Study on Analysis Method and Control Index for Deformation of Super-High Arch Dam Suffering Alkali-Aggregate Reaction
نویسندگان
چکیده
Alkali-aggregate reaction can not only cause uneven expansion of concrete but also lead to cracking and even destruction consequently affect the working behavior long-term safety hydraulic structures. Present researches on alkali-aggregate focus improving composition ratio materials through experimental study inhibit reaction, whereas there is a lack quantitative calculation analysis. In present study, problem in super-high arch dam Jinping I Hydropower Station was taken as an example. The suffering simulated by means overall temperature rise dam. Similarly, yield zone, process, deformation change law with development expansive under various load combinations were analyzed using elastic–plastic finite element method. Finally, control index allowable put forward. research results demonstrated that 400~800 με. Since has low reserve when operating at water level, lowest reservoir level should be raised much possible operation reduce its drawdown rate, thus restraining adverse impact
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ژورنال
عنوان ژورنال: Water
سال: 2023
ISSN: ['2073-4441']
DOI: https://doi.org/10.3390/w15071399