Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Effect of Typical Extreme Environments on Concrete Dam
Due to the effect of extreme environments, concrete dams face emerging challenges. Effect of two typical extreme environments, earthquake and climate fluctuation, on concrete dam was studied. Analysis on the effect of earthquake on concrete dam, dealt mainly with seismic damage of Shapai and Tongkou hydropower stations to obtain characteristics of seismic damages, thereby, to propose measures for project rehabilitation. It is to increase our knowledge of objective laws for effect of earthquake on concrete dam and enhance capability against seismic risk. Taking the low temperature event of Xixi reservoir dam due to climate anomaly for example, the effect of climate anomaly on concrete dam was systematically studied. Through analyzing observational data of uplift pressure of the dam foundation, the conclusion that low temperature and increase of reservoir water level leaded to the increase in uplift pressure is drawled qualitatively. To further analysis of the relationship between uplift pressure coefficients and the changes of temperature or water level, the statistical regression model of uplift pressure coefficient was established. Then, the effect of low temperature and reservoir water level on the dam safety was analyzed qualitatively. The results show that in high water level conditions, extreme low temperatures resulting in a larger temperature difference will affect the safety operation of concrete dam.
Effect of Typical Extreme Environments on Concrete Dam
Due to the effect of extreme environments, concrete dams face emerging challenges. Effect of two typical extreme environments, earthquake and climate fluctuation, on concrete dam was studied. Analysis on the effect of earthquake on concrete dam, dealt mainly with seismic damage of Shapai and Tongkou hydropower stations to obtain characteristics of seismic damages, thereby, to propose measures for project rehabilitation. It is to increase our knowledge of objective laws for effect of earthquake on concrete dam and enhance capability against seismic risk. Taking the low temperature event of Xixi reservoir dam due to climate anomaly for example, the effect of climate anomaly on concrete dam was systematically studied. Through analyzing observational data of uplift pressure of the dam foundation, the conclusion that low temperature and increase of reservoir water level leaded to the increase in uplift pressure is drawled qualitatively. To further analysis of the relationship between uplift pressure coefficients and the changes of temperature or water level, the statistical regression model of uplift pressure coefficient was established. Then, the effect of low temperature and reservoir water level on the dam safety was analyzed qualitatively. The results show that in high water level conditions, extreme low temperatures resulting in a larger temperature difference will affect the safety operation of concrete dam.
Effect of Typical Extreme Environments on Concrete Dam
Xiang, Yan (Autor:in) / Yuan, Hui (Autor:in) / Wang, Zhan-jun (Autor:in) / Li, Zi-yang (Autor:in) / Guan, Yun-jie (Autor:in)
Thirteenth ASCE Aerospace Division Conference on Engineering, Science, Construction, and Operations in Challenging Environments, and the 5th NASA/ASCE Workshop On Granular Materials in Space Exploration ; 2012 ; Pasadena, California, United States
Earth and Space 2012 ; 828-839
17.04.2012
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
Concrete in extreme environments
| TIBKAT | 2018
Spatial and Temporal Scaling of Concrete Response to Extreme Environments
| British Library Conference Proceedings | 2001
Three typical concrete bridges
| Engineering Index Backfile | 1949
Developments in Performance Monitoring of Concrete Exposed to Extreme Environments
| Online Contents | 2012