[1]崔旭廷,刘晓静,刘 俊,等.基于坝体损伤及坝基稳定的重力坝动力分析及安全评价[J].华南地震,2022,(02):93-101.[doi:10.13512/j.hndz.2022.02.13]
 CUI Xuting,LIU Xiaojing,LIU Jun,et al.Dynamic Analysis and Safety Evaluation of Gravity Dam Based on Dam Damage and Dam Foundation Stability[J].,2022,(02):93-101.[doi:10.13512/j.hndz.2022.02.13]
点击复制

基于坝体损伤及坝基稳定的重力坝动力分析及安全评价()
分享到:

华南地震[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2022年02期
页码:
93-101
栏目:
土木工程防震减灾
出版日期:
2022-06-30

文章信息/Info

Title:
Dynamic Analysis and Safety Evaluation of Gravity Dam Based on Dam Damage and Dam Foundation Stability
文章编号:
1001-8662(2022)02-0093-09
作者:
崔旭廷1刘晓静1刘 俊1祝福源23
1.南京市水利规划设计院股份有限公司,南京 210000;2.河海大学水利水电学院,南京 210098;3.水发规划设计有限公司,济南 250100
Author(s):
CUI Xuting1LIU Xiaojing1LIU Jun1ZHU Fuyuan23456
1.Nanjing Water Planning and Designing Institute , Co., Ltd., Nanjing 210000, China;2.College of Water Conservancy&3.Hydropower Engineering , Hohai University , Nanjing 210098, China;4.Shuifa Planning&5.Design Co., Ltd.,ji'6.nan 250100, China
关键词:
重力坝动力损伤动力接触模型抗滑稳定超载法
Keywords:
Gravity dam Dynamic damage Dynamic contact model Anti-sliding stability Overloading method
分类号:
TV312
DOI:
10.13512/j.hndz.2022.02.13
文献标志码:
A
摘要:
强震区高混凝土坝的坝体强度和动力稳定是关系大坝抗震安全最为重要的两个因素。为了全面研究地震作用下的混凝土坝的抗震安全,采用混凝土塑性损伤及动力接触模型来分析模拟地震中坝体的损伤及坝基滑裂面的破坏、张开、滑移的全过程。通过构建坝体—基岩三维有限元非线性动力接触模型综合分析震后坝体损伤区域分布、坝基滑移面的接触状态及塑性区的动态分布,避免了采用单一判据的评价的局限性。以某重力坝为例,采用超载法进行大坝动力损伤及动力稳定性进行计算并对大坝的抗震安全进行评价,得到大坝的超载安全系数。工程算例表明:该方法可以全面的评价地震过程中大坝的坝体损伤和稳定性并能够考虑其相互影响,为混凝土坝抗震安全评价提供了新的途径。
Abstract:
The strength and dynamic stability of high concrete dam in strong earthquake area are the two most important factors related to the seismic safety of the dam. In order to comprehensively study the seismic safety of concrete dam under earthquake, this paper uses concrete plastic damage and dynamic contact model to analyze and simulate the whole process of dam damage and dam foundation slip surface damage,opening and slip. Through the three-dimensional finite element nonlinear dynamic contact model between dam body and bedrock, the damage area distribution of dam body, the contact state of dam foundation slip surface and the dynamic distribution of plastic zone are analyzed comprehensively,which avoids the limitation of evaluation by using single criterion. Taking a gravity dam as an example, the overloading method is used to calculate the dynamic damage and dynamic stability of the dam, and the seismic safety of the dam is evaluated to obtain the overloading safety factor of the dam. The engineering example shows that this method can comprehensively evaluate the dam damage and stability during the earthquake and consider their interaction, which provides a new way for seismic safety evaluation of concrete dams.

参考文献/References:

[1]林红,阮璐,李少飞.上第三系软岩重力坝坝基复合加固处理技术[J].人民长江,2020,51(11):153-160.
[2]涂劲,周立本,李德玉,等.重力坝深层抗滑稳定研究[J].水利学报,2003,34(10):96-100.
[3]周伟,常晓林,徐建强.基于分项系数法的重力坝深层抗滑稳定分析[J].岩土力学,2007(02):315-320.
[4]郭明伟,李春光,王水林.基于有限元应力的三维边坡稳定性分析[J].岩石力学与工程学报,2012,31(12):2494-2500.
[5]栾茂田,武亚军,年廷凯.强度折减有限元法中边坡失稳的塑性区判据及其应用[J].防灾减灾工程学报,2003(03):1-8.
[6]史俊涛,孔思丽,任琪.有限元强度折减法边坡失稳判据适用性分析[J].人民黄河,2014,36(02):135-137+140.
[7]赵尚毅,郑颖人,张玉芳.极限分析有限元法讲座——Ⅱ有限元强度折减法中边坡失稳的判据探讨[J].岩土力学, 2005(02):332-336.
[8]程明.基于塑性损伤和扩展有限元的混凝土损伤破坏对比研究[D].广州:华南理工大学,2017.
[9]齐虎,李云贵,吕西林.混凝土弹塑性损伤本构模型参数及其工程应用[J].浙江大学学报(工学版),2015,49 (03):547-554+563.
[10]吴建营,徐世烺.混凝土多裂缝各向异性弹塑性损伤模型理论及应用[J].水利学报,2012,43(S1):110-117.
[11]于海祥,武建华.基于无损受力状态的混凝土弹塑性损伤本构模型[J].工程力学,2009,26(10):79-86.
[12]梁辉.混凝土坝—地基体系整体稳定地震易损性分析和抗震安全评价[D].北京:中国水利水电科学研究院,2019.
[13]王高辉.极端荷载作用下混凝土重力坝的动态响应行为和损伤机理[D].天津:天津大学,2014.
[14]李斌.混凝土重力坝结构稳定性分析与疲劳计算[D].武汉:华中科技大学,2013.
[15]王超.重力坝系统动力性态的随机数学分析[D].天津:天津大学,2012.
[16]何迪,李宗利.地震荷载作用下重力坝坝踵裂缝内水压分布研究[J].人民长江,2011,42(09):72-75.
[17]向衍,马福恒,袁辉.地震对英得尔水库溃坝的影响分析[J].长江科学院院报,2007(05):31-33+43.
[18] Bathe K J. On the constraint function method for contact problems[J]. Computers & Structures,1997,64(5-6):1069-1085.
[19] Eterovic A L.,Bathe K J . On the treatment of inequality constraints arising from contact conditions in finite element analysis[J]. Computers & Structures,1991,40(2):203-209.
[20]国家能源局.NB35047-2015:水电工程水工建筑物抗震设计规范[S].北京:中国电力出版社,2015.
[21]赵堃,王春青,张旸,等.基于ADINA的重力坝流固耦合动力特性分析[J].科学技术与工程,2012,12(32):8788-8792.

备注/Memo

备注/Memo:
收稿日期:2021-11-18
基金项目:国家自然科学基金项目(51579085)
作者简介:崔旭廷(1988-),男,工程师,主要从事水利工程设计与抗震分析研究。E-mail:602147441@qq.com
更新日期/Last Update: 2022-06-30