瀑布沟心墙堆石坝地震响应分析
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摘要
在高地震烈度区修建深厚覆盖层上的高土石坝面临许多问题,如大坝的动力稳定、坝基液化问题等,非常有必要对大坝的地震动力响应进行力学分析,以便为设计和施工提供指导。对瀑布沟大坝进行了三维地震动力响应有限元分析,就动力工况下芯墙、防渗墙的抗震能力及基础砂层的液化可能性等进行了研究,并提出了一系列针对坝体结构、材料等的优化措施。通过地震三维有限元分析,并采取一系列针对措施,坝体综合抗震能力得到了提高,可以满足有关规程规范要求,所得结论可以为类似工程提供参考和借鉴。
To build high earth- rockfill dam on thick cover foundation in high earthquake intensity region will face many problems such as dynamic stability,dam foundation liquefaction etc. It is highly necessary to carry out dam's seismic dynamic response to provide the guidance for design and construction of the dam. As an example,three-dimensional dynamic FEM was employed to analyze the seismic response of Pubugou corewall rockfill dam. The earthquake resistance capacity of corewall and seepage proof wall,and the liquefaction possibility of foundation sand layer were researched. According to the analysis results,some optimized measures for dam structure,material,and so on,were put forward to improve the seismic resistance of Pubugou corewall rockfill dam. The conclusions drawn in this paper can provide a reference to similar engineering.
引文
[1]张丙印,于玉贞,张建民.高土石坝的若干关键技术问题[C]//中国土木工程学会第九届土力学及岩土工程学术会议论文集.北京:清华大学出版社,2003:163-186.ZHANG Bingyin,Yu Yuzhen,Zhang Jianmin.Some critical technical problems of high earth-rock dam[C]//In:Symposium on the 9th Aacdemy of China Civil Enginereing of Soil Mechanics and Geotechnical Engineering.Beijing:Tsinghua University Press,2003:163-186.
    [2]张丙印,师瑞峰,王刚.高面板堆石坝面板脱空问题的接触力学分析[J].岩土工程学报,2003,25(3):361-364.ZHANG Bingyin,Shi Ruifeng,Wang Gang.Contact analysis of separation between concrete slab and cushion layer in high concrete face rock fill dam[J].Chinese Journal of Geotechnical Engineering,2003,25(3):361-364.
    [3]高莲士,汪召华,宋文晶.非线性K-G模型在高面板堆石坝应力变形分析中的应用[J].水利学报,2001,(10):1-7.GAO Lianshi,Wang Zhaohua,Song Wenjing.The application of nonlinear uncoupled K-G model to deformation analysis of high concrete face rockfill dam[J].Jouranl of Hydraulic Engineering,2001,(10):1-7.
    [4]黄文熙.高土石坝科研工作中的几个问题[J].水利水电技术,1982,14(4):1-10.HUANG Wenxi.Several problems of high earth-rock dam research[J].Water Resources and Hydro Technology,1982,14(4):1-10.
    [5]杨荣.瀑布沟高土石坝三维非线性分析[J].应用基础与工程科学学报,1995,3(3):260-267.YANG Rong.The 3-d nonlinear stress-strain analysis of Pubugou high rockfill dam[J].Journal of Basic Science and Engeering,1995,3(3):260-267.
    [6]朱晟,顾淦臣,林益才.深覆盖层上混凝土面板堆石坝地震反应分析[J].河海大学学报,1997,(5):80-85.ZHU Sheng,Gu Ganchen,Lin Yincai.The earthquake response analysis of concrete face rock fill dam with thick moraine cover[J].Jouranl of Hohai Unversity,1997,(5):80-85.
    [7]周江平,彭雄志,赵善锐.复杂地基上高土石坝坝体稳定可靠度分析[J].西南交通大学学报,1998,(10):544-549.ZHOU Jiangping,Peng Xiongzhi,Zhao Shanrui.Reliablity analysis of the stability of high earth-rock dam in complex foundation[J].Jouranl of Southwest Jiaotong University,1998,(10):544-549.
    [8]中国水电顾问集团成都勘测设计研究院.四川省大渡河瀑布沟水电站心墙堆石坝三维静动力应力应变分析[R].2009.HYDROCHINA Chengdu Engineering Corporation.Three dimensional static and dynamic stress and strain analysis of Dadu River Pubugou Hydropower Station[R].2009.
    [9]中国水电顾问集团成都勘测设计研究院.四川省大渡河瀑布沟水电站防震抗震研究设计专题报告[R].2009.HYDROCHINA Chengdu Engineering Corporation.Seismic design and quakeproof report of Dadu River Pubugou Hydropower Station[R].2009.

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