重视高坝大库的抗震安全——纪念唐山大地震30周年
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摘要
本文概述了我国面临高坝建设的历史机遇和其抗震安全的严重挑战,提出确保大坝工程抗震安全的基本理念。首先,大坝抗震安全评价必须要遵照坝址地震动输入、坝体结构体系的地震响应和大坝材料的动态抗力三个方面相互配套的原则;同时要有敢于突破传统、敢于创新的精神;最后,提出了在当前我国高坝中占主位的拱坝的抗震安全关键技术问题,并简要报导了在其地震动输入、坝体结构体系的地震响应和大坝材料的动态性能三个方面的最新研究进展。
This paper is written in commemoration of the 30~(th) anniversary of Tangshan earthquake.The author recalls the enlightenment,inspiration and encouragement induced by the impressions during the field investigation on earthquake damage at the Douhe Dam near Tangshan on the first day of the event.It is appealing to pay great attention to the seismic safety of high dams with large reservoir.Historic opportunities and rigorous challenges in high dam construction in China are briefly described.Two arisen basic conceptions ensuring the seismic safety of large dams are emphasized,i.e.the principal of coordination among three aspects of seismic input,responses of dam system and dynamic resistances of dam materials for seismic safety assessment,and the inspiration of bold innovation and breaking through of popular traditions in seismic design of dams.Finally,some recent advances in researches of the abovementioned three aspects for arch dams during the past 30 years are briefly introduced.
This paper is written in commemoration of the 30~(th) anniversary of Tangshan earthquake.The author recalls the enlightenment,inspiration and encouragement induced by the impressions during the field investigation on earthquake damage at the Douhe Dam near Tangshan on the first day of the event.It is appealing to pay great attention to the seismic safety of high dams with large reservoir.Historic opportunities and rigorous challenges in high dam construction in China are briefly described.Two arisen basic conceptions ensuring the seismic safety of large dams are emphasized,i.e.the principal of coordination among three aspects of seismic input,responses of dam system and dynamic resistances of dam materials for seismic safety assessment,and the inspiration of bold innovation and breaking through of popular traditions in seismic design of dams.Finally,some recent advances in researches of the abovementioned three aspects for arch dams during the past 30 years are briefly introduced.
引文
[1]Chen Houqun.Seismic Safety for Hydropower Engineering in China[A].Proceedings of United Nations Symposium onHydropower and Sustainable Development[C].Beijing,China,2004.27-29.
[2]赵黛青,余颖琳,万英.我国能源的现状与发展[A].科学对社会的影响[C].北京,2006.
[3]陈厚群.大坝的抗震设防水准及相应性能目标[J].工程抗震与加固改造,2005,27(增刊).
[4]陈厚群,郭明珠.重大工程场地设计地震动参数选择[A],现代地震工程进展[C].南京:东南大学出版社,2002.
[5]Nakayama T,Fujiwara H,Komatsu S,Sumida N.Nonstationary response and reliability of linear systems under seismicloadings[A].Structural Safety and Reliability[C].Balkema,Rotterdam,1994.2176-2189.
[6]Chen Houqun,Tu Jin,Zhang Boyan.Study an seismic behavior of Xiaowan high arch dam[A].Proc.of 21thCongress onLarge Dams[C].2003,Q.83 R.68,1183-1194.
[7]陈厚群,吴胜兴,马怀发,丁卫华.全级配大坝混凝土动态性能研究[A].新世纪水利工程科技前沿[C].天津:天津大学出版社,2005.
[2]赵黛青,余颖琳,万英.我国能源的现状与发展[A].科学对社会的影响[C].北京,2006.
[3]陈厚群.大坝的抗震设防水准及相应性能目标[J].工程抗震与加固改造,2005,27(增刊).
[4]陈厚群,郭明珠.重大工程场地设计地震动参数选择[A],现代地震工程进展[C].南京:东南大学出版社,2002.
[5]Nakayama T,Fujiwara H,Komatsu S,Sumida N.Nonstationary response and reliability of linear systems under seismicloadings[A].Structural Safety and Reliability[C].Balkema,Rotterdam,1994.2176-2189.
[6]Chen Houqun,Tu Jin,Zhang Boyan.Study an seismic behavior of Xiaowan high arch dam[A].Proc.of 21thCongress onLarge Dams[C].2003,Q.83 R.68,1183-1194.
[7]陈厚群,吴胜兴,马怀发,丁卫华.全级配大坝混凝土动态性能研究[A].新世纪水利工程科技前沿[C].天津:天津大学出版社,2005.
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