十三陵抽水蓄能电站上水库工程结构抗震复核研究与评估
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摘要
本文是鉴于《中国地震动参数区划图》(GB 18306—2015)对十三陵上库工程区50年超越概率10%的地震动峰值加速度,由0.15g调整为0.20g,原设计场地基本烈度Ⅶ度提高为Ⅷ度区,为进一步核实十三陵抽水蓄能电站上库工程安全稳定运行的可靠性,采用拟静力法和非线性动力有限元法对电站上水库工程主坝、副坝等重点部位开展结构抗震复核计算,按照坝体单元抗震安全性的评价方法以及坝坡抗震稳定性的动力时程线法,并结合坝体应力变形的分析结果,对坝体抗震安全性进行了评价,为电站上水库工程安全稳定及运行期的精准管理提供科学依据和保障。
Based on seismic ground motion parameters zonation map of china(GB18306—2015),the ground motion peak acceleration for the upper reservoir engineering area of Ming Tombs Pumped Storage Power Station,which was 10% of the 50 years transcendental probability,was changed from 0.15 g to 0.20 g. The earthquake intensity of original design site was improved from 7degree to 8 degree. In order to research the operation reliability of the upper reservoir engineering under earthquake action,the antiseismic calculation for the main dam and auxiliary dam was carried out,using pseudo-static method and nonlinear dynamic finite element method. According to the evaluation method of seismic safety of dam body element and dynamic time history analysis of seismic stability of dam slope,and combined with analysis results of seismic safety of dam body,we carried out seismic safety evaluation for the dam. The research results provide scientific basis and guarantee for the safety and stability of the upper reservoir project and the precise management of the operation period.
Based on seismic ground motion parameters zonation map of china(GB18306—2015),the ground motion peak acceleration for the upper reservoir engineering area of Ming Tombs Pumped Storage Power Station,which was 10% of the 50 years transcendental probability,was changed from 0.15 g to 0.20 g. The earthquake intensity of original design site was improved from 7degree to 8 degree. In order to research the operation reliability of the upper reservoir engineering under earthquake action,the antiseismic calculation for the main dam and auxiliary dam was carried out,using pseudo-static method and nonlinear dynamic finite element method. According to the evaluation method of seismic safety of dam body element and dynamic time history analysis of seismic stability of dam slope,and combined with analysis results of seismic safety of dam body,we carried out seismic safety evaluation for the dam. The research results provide scientific basis and guarantee for the safety and stability of the upper reservoir project and the precise management of the operation period.
引文
[1]GB 18306—2015,中国地震动参数区划图[S].北京:中华人民共和国国家质量监督检验检疫总局,2015.GB 18306—2015,Seismic Ground Motion Parameters Zanotion Map of China[S]. Beijing:General Administration of Quality Supervision,Inspection and Quarantine of the People’s Republic of China,2015.
[2]北京勘测设计研究院.十三陵抽水蓄能电站技施设计报告第五篇水工建筑物上池工程[R].北京:北京勘测设计研究院,1997.Beijing Engineering Corporation. Technical design report of the Ming tombs pumped storage power station-Chapter v upper pool engineering hydraulic structures[R]. Beijing:Beijing Engineering Corporation,1997
[3]NB 35047—2015,水电工程水工建筑物抗震设计规范[S].北京:国家能源局,2011.NB 35047—2015,Codefor SeismicDesignof Hydraulic Structures for Hydropower Projects[S]. Beijing:National Energy Administration,2011.
[4]DL/T 5016—2011,混凝土面板堆石坝设计规范[S].北京:国家能源局,2011.DL/T 5016—2011,Design Specification for Concrete Face Rockfill Dams.[S]. Beijing:National Energy Administration,2011.
[5]朱晟,石高峰,周建平.碧口心墙堆石坝抗震复核分析[J].岩石力学与工程学报,2011,30(1),2954-2962.ZHU Sheng,SHI Gaofeng,ZHOU Jianping. Analysis of Seismic Review of Bikou Rockfill Dam with Earth Core[J].Chinese Journal of Rock Mechanics and Engineering,2011,30(1),2954-2962.
[6]徐泽平.混凝土面板堆石坝应力变形特性分析[M].北京:黄河水利出版社,2005.XU Zeping. Analysis of Stress and Deformation Characteristics of Concrete Face Rockfill Dam[M]. Beijing:The Yellow River conservancy press,2005.
[7]顾淦臣.土石坝地震工程[M].南京:河海大学出版社,1989.GU Ganchen. Earthquake Engineering for Earth-rock Dams[M].Nanjing:Hohai University Press,1989.
[8]徐泽平,岳跃真,李萌.十三陵抽水蓄能电站上库工程结构抗震复核报告[R].北京:中国水利水电科学研究院,2017.XU Zeping,YUE Yuezhen,LI Meng. Seismic Recheck Report on the Upper Storage Structure of the Ming Tombs Pumped Storage Power Station[R]. Beijing:China institute of water resources and hydropower research,2017.
[2]北京勘测设计研究院.十三陵抽水蓄能电站技施设计报告第五篇水工建筑物上池工程[R].北京:北京勘测设计研究院,1997.Beijing Engineering Corporation. Technical design report of the Ming tombs pumped storage power station-Chapter v upper pool engineering hydraulic structures[R]. Beijing:Beijing Engineering Corporation,1997
[3]NB 35047—2015,水电工程水工建筑物抗震设计规范[S].北京:国家能源局,2011.NB 35047—2015,Codefor SeismicDesignof Hydraulic Structures for Hydropower Projects[S]. Beijing:National Energy Administration,2011.
[4]DL/T 5016—2011,混凝土面板堆石坝设计规范[S].北京:国家能源局,2011.DL/T 5016—2011,Design Specification for Concrete Face Rockfill Dams.[S]. Beijing:National Energy Administration,2011.
[5]朱晟,石高峰,周建平.碧口心墙堆石坝抗震复核分析[J].岩石力学与工程学报,2011,30(1),2954-2962.ZHU Sheng,SHI Gaofeng,ZHOU Jianping. Analysis of Seismic Review of Bikou Rockfill Dam with Earth Core[J].Chinese Journal of Rock Mechanics and Engineering,2011,30(1),2954-2962.
[6]徐泽平.混凝土面板堆石坝应力变形特性分析[M].北京:黄河水利出版社,2005.XU Zeping. Analysis of Stress and Deformation Characteristics of Concrete Face Rockfill Dam[M]. Beijing:The Yellow River conservancy press,2005.
[7]顾淦臣.土石坝地震工程[M].南京:河海大学出版社,1989.GU Ganchen. Earthquake Engineering for Earth-rock Dams[M].Nanjing:Hohai University Press,1989.
[8]徐泽平,岳跃真,李萌.十三陵抽水蓄能电站上库工程结构抗震复核报告[R].北京:中国水利水电科学研究院,2017.XU Zeping,YUE Yuezhen,LI Meng. Seismic Recheck Report on the Upper Storage Structure of the Ming Tombs Pumped Storage Power Station[R]. Beijing:China institute of water resources and hydropower research,2017.