(1. College of Water Conservancy and Hydropower Engineering，Hohai University，Nanjing，Jiangsu 210098，China；2. State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering，Hohai University，Nanjing，Jiangsu 210098，China；
3. Northeast Zhongshui Survey Design Research Corporation Limited，Changchun，Jilin 130021，China)
Abstract：The extra-high arch dam has the characteristics of three high and one strong. It exhibits complex, diverse and time-varying deformation behavior in long-term operation. Among them，the time-varying characteristics imply the evolution of dam system safety. This is of great significance to the service of engineering health. The specification clearly states that the deformation behavior of extra-high arch dams needs to be specifically studied. In this paper，the deformation time-varying characteristics of typical extra-high arch dams in China are analyzed. Then，based on the differences presented by the time-varying effects，the influencing factors and formation mechanism of the aging deformation of the ultra-high arch dam are analyzed in depth. Next，consider that the aging deformation is generated by the superposition of multiple factors and cannot be directly monitored. The aging deformation is regarded as a state vector，the measured deformation is used as the observation sequence，and the trend term of wavelet decomposition is used as the state sequence. A time-sensitive deformation separation method for ultra-high arch dams based on state-space model is proposed. Finally，the discriminant index of time-varying effect is proposed. This enables dam safety judgments from a time-varying perspective. The overall evolution law and trend of the aging deformation of ultra-high arch dams can be revealed, and the healthy service performance of the dam can be diagnosed.
陈 波1，2，吴诚姝1，2，刘庭赫1，2，3，顾冲时1，2. 特高拱坝长期运行时变效应的状态空间诊断方法[J]. 岩石力学与工程学报, 2023, 42(4): 868-878.
CHEN Bo1，2，WU Chengshu1，2，LIU Tinghe1，2，3，GU Chongshi1，2. State space diagnosis method for time-varying effect of extra-high arch dam in long-term operation. , 2023, 42(4): 868-878.
[1] WANG R. Key Technologies in the design and construction of 300 m ultra-high arch dams[J]. Engineering，2016，2(3)：350–359.
[2] 马洪琪. 我国坝工技术的发展与创新[J]. 水力发电学报，2014，33(6)：1–10.(MA Hongqi. The development and innovation of dam engineering technology in China[J]. Journal of Hydroelectric Engineering，2014，33(6)：1–10.(in Chinese))
[3] 朱伯芳. 中国是世界拱坝大国也是世界拱坝强国—在《特高拱坝建设总结及安全运行管理研究》会议上的发言[J]. 水利水电技术，2017，48(2)：1–3.(ZHU Bofang. China is the world?s arch dam power and the world's arch dam power—speech at the conference“summary of the construction of ultra-high arch dams and research on safe operation management”[J]. Water Resources and Hydropower Engineering，2017，48(2)：1–3.(in Chinese))
[4] 吴中如. 水工建筑物安全监控理论及其应用[M]. 北京：高等教育出版社，2003：1–2.(WU Zhongru. Safety monitoring theory and its application of hydraulic structures[M]. Beijing：Higher Education Press，2003：1–2.(in Chinese))
[5] 顾冲时，苏怀智，王少伟. 高混凝土坝长期变形特性计算模型及监控方法研究进展[J]. 水力发电学报，2016，35(5)：1–14.(GU Chongshi，SU Huaizhi，WANG Shaowei. Research progress on calculation model and monitoring method of long-term deformation characteristics of high concrete dam[J]. Journal of Hydroelectric Engineering，2016，35(5)：1–14.(in Chinese))
[6] 林 鹏，王仁坤，康绳祖，等. 特高拱坝基础破坏、加固与稳定关键问题研究[J]. 岩石力学与工程学报，2011，30(10)：1 945–1 958.(LIN Peng，WANG Renkun，KANG Shengzu，et al. Research on key issues of foundation failure，reinforcement and stability of extra-high arch dams[J]. Chinese Journal of Rock Mechanics and Engineering，2011，30(10)：1 945–1 958.(in Chinese))
[7] 张国新，陈培培，周秋景. 特高拱坝真实温度荷载及对大坝工作性态的影响[J]. 水利学报，2014，45(2)：127–134.(ZHANG Guoxin，CHEN Peipei，ZHOU Qiujing. The real temperature load of the extra-high arch dam and its influence on the working behavior of the dam[J]. Journal of Hydraulic Engineering，2014，45(2)：127–134.(in Chinese))
[8] 何金平，施玉群，龚 静. 混凝土坝时效变形特性研究[J]. 长江科学院院报，2010，27(6)：18–22.(HE Jinping，SHI Yuqun，GONG Jing. Study on aging deformation characteristics of concrete dam[J]. Journal of Yangtze River Scientific Research Institute，2010，27(6)：18–22.(in Chinese))
[9] 程 恒，张国新，廖建新，等. 高拱坝谷幅变形特征及影响因素分析[J]. 水利水电技术，2020，51(5)：65–70.(CHENG Heng，ZHANG Guoxin，LIAO Jianxin，et al. Analysis of valley deformation characteristics and influencing factors of high arch dam[J]. Water Resources and Hydropower Engineering，2020，51(5)：65–70.(in Chinese))
[10] 张国新，程 恒，周秋景，等. 高拱坝蓄水期谷幅时效变形机理分析[J]. 中国科技论文，2019，14(1)：77–84.(ZHANG Guoxin，CHENG Heng，ZHOU Qiujing，et al. Analysis of valley amplitude aging deformation mechanism during the impoundment period of high arch dam[J]. China Science Paper，2019，14(1)：77–84.(in Chinese))
[11] 王仁坤. 我国特高拱坝的建设成就与技术发展综述[J]. 水利水电科技进展，2015，35(5)：13–19.(WANG Renkun. A review of the construction achievements and technological development of extra-high arch dams in China[J]. Advances in Science and Technology of Water Resources，2015，35(5)：13–19.(in Chinese))
[12] 伯 芳. 论混凝土坝的几个重要问题[J]. 中国工程科学，2006，(7)：21–29.(BO Fang. On several important issues of concrete dams[J]. Strategic Study of CAE，2006，(7)：21–29.(in Chinese))
[13] 汤 灿. 混凝土受压徐变模型及应力–应变关系研究[博士学位论文][D]. 哈尔滨：哈尔滨工业大学，2016.(TANG Can. Concrete compressive creep model and stress-strain relationship study[Ph. D. Thesis][D]. Harbin：Harbin Institute of Technology，2016.(in Chinese))
[14] 顾冲时. 特高拱坝变形安全监控理论方法及其应用[M]. 南京：河海大学出版社，2018：185–192.(GU Chongshi. Theoretical method and application of safety monitoring of deformation of extra-high arch dam[M]. Nanjing：Hohai University Press，2018：185–192.(in Chinese))
[15] 李富强. 大坝安全监测数据分析方法研究[博士学位论文][D].杭州：浙江大学，2012.(LI Fuqiang. Research on data analysis methods for dam safety monitoring[Ph. D. Thesis][D]. Hangzhou：Zhejiang University，2012.(in Chinese))
[16] 汪 程，杨 光，祖安君，等. 混凝土坝变形Wavelet-EGM -PE-ARIMA组合预测模型[J]. 长江科学院院报，2019，36(8)：67–72.(WANG Cheng，YANG Guang，ZU Anjun，et al. Concrete dam deformation Wavelet-EGM-PE-ARIMA combined prediction model[J]. Journal of Yangtze River Scientific Research Institute，2019，36(8)：67–72.(in Chinese))
[17] 徐洪俊，张锦东，张其林. 基于时间序列模型和扩展卡尔曼滤波算法的结构响应预测[C]// 第十九届全国现代结构工程学术研讨会论文集. [S. l.]：[s. n.]，2019：389–393.(XU Hongjun，ZHANG Jindong，ZHANG Qilin. Structural response prediction based on time series model and extended Kalman filter algorithm[C]// Proceedings of the 19th National Symposium on Modern Structural Engineering. [S. l.]：[s. n.]，2019：389–393.(in Chinese))
[18] 王继敏，顾冲时，张 晨，等. 基于面板时空模型的锦屏一级大坝变形性态分析[J]. 水力发电学报，2020，39(11)：21–30.(WANG Jimin，GU Chongshi，ZHANG Chen，et al. Analysis of deformation behavior of Jinping Class 1 dam based on panel spatiotemporal model[J]. Journal of Hydroelectric Engineering，2020，39(11)：21–30.(in Chinese))
[19] 吴中如，顾冲时. 重大水工混凝土结构病害检测与健康诊断[M]. 北京：高等教育出版社，2005：345–349.(WU Zhongru，GU Chongshi. Disease detection and health diagnosis of major hydraulic concrete structures[M]. Beijing：Higher Education Press，2005：345–349.(in Chinese))
[20] 徐洪钟，吴中如，李雪红，等. 基于小波分析的大坝变形观测数据的趋势分量提取[J]. 武汉大学学报：工学版，2003，(6)：5–8.(XU Hongzhong，WU Zhongru，LI Xuehong，et al. Trend component extraction of dam deformation observation data based on wavelet analysis[J]. Engineering Journal of Wuhan University，2003，(6)：5–8.(in Chinese))
[21] 王少伟. 特高混凝土坝变形时变效应分析方法研究[博士学位论文][D]. 南京：河海大学，2016.(WANG Shaowei. Study on time-varying effect analysis method of deformation of extra-high concrete dam[Ph. D. Thesis][D]. Nanjing：Hohai University，2016.(in Chinese))
2023, Vol. 42 
