New technology for inner horizontal displacement monitoring in high concrete face rockfill dam
HE Ning1, 2, 3, WANG Guo-li1, 2, 3, HE Bin1, 3, WANG Zhang-chun1, 3, ZHOU Yan-zhang1, 3, QIAN Ya-jun1, 3, LI Deng-hua1, 3, ZHANG Gui-rong1, 2, 3
1. Geotechnical Engineering Department, Nanjing Hydraulic Research Institute, Nanjing 210029, China; 2. State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing 210029, China; 3 Key Laboratory of Failure Mechanism and Safety Control Techniques of Earth-Rock Dam of the Ministry of Water Resources, Nanjing 210029, China
Abstract：The design theories and dam construction technologies of concrete faced rockfill dam with the height of more than 300 m in China have reached the advanced world level at present. But the traditional measuring methods are not suitable for the safety monitoring of the high concrete face rockfill dam, and the new techniques for safety monitoring of high concrete face rockfill dam are needed. Tests on the proposed technology for horizontal displacement monitoring the dam by using distributed optical fibers are performed through model tests with 1:1 scale and prototype tests. The test result show that the new technology for horizontal displacement monitoring the dam can be used to measure the inner deformation of the dam 300 m in height with the measurement line 1000 m in length. Its measurement accuracy is verified by both the model and the prototype tests, and the relevant regulatory requirements are satisfied. It can meet the work requirements for the internal horizontal displacement monitoring of high concrete face rockfill dam. Applications in internal horizontal displacement monitoring of embankment dam show that the new technology has unique characteristics and advantages, it is good prospect.
何宁, 王国利, 何斌, 汪璋淳, 周彦章, 钱亚俊, 李登华, 张桂荣. 高面板堆石坝内部水平位移新型监测技术研究[J]. 岩土工程学报, 2016, 38(z2): 24-29.
HE Ning, WANG Guo-li, HE Bin, WANG Zhang-chun, ZHOU Yan-zhang, QIAN Ya-jun, LI Deng-hua, ZHANG Gui-rong. New technology for inner horizontal displacement monitoring in high concrete face rockfill dam. Chinese J. Geot. Eng., 2016, 38(z2): 24-29.
[1] 中华人民共和国发展和改革委员会.大坝安全监测自动化技术规范[S]. 北京: 中国电力出版社, 2005. (The National Development and Reform Commission of The People's Republic of China. Technical specification for dam safety monitoring automation[S]. Beijing: China Electric Power Press, 2005. (in Chinese)) [2] 中华人民共和国水利部. 坝安全自动监测系统设备基本条件[S]. 北京: 中国水利电力出版社, 2001. (Ministry of Water Resources of the People's Republic of China. Fundamental specification of equipment of automation system for dam safety monitoring[S]. Beijing: China Water Power Press, 2001. (in Chinese)) [3] 邓念武, 黄小红, 李 芳. 水平垂直位移计在水布垭面板堆石坝中的应用[J]. 中国农村水利, 2010(12): 125-134. (DENG Nian-wu, HUANG Xiao-hong, LI Fang. Application of horizontal and vertical displacement meter in Shuibuya concrete face rockfill dam[J]. China Rural Water and Hydropower, 2010(12): 125-134. (in Chinese)) [4] 何福江, 甘莉芬. 高土石坝内部变形观测[J]. 四川水力发电, 2010, 29(增刊1): 43-46. (HE Fu-jiang, GAN Li-fen. Observation of inner deformation in high embankment dam[J]. Sichuan Water Power, 2010, 29(S1): 43-46. (in Chinese)) [5] 符伟杰, 谢红兰, 徐国龙. 土坝内部水平位移自动监测系统[J]. 水电自动化与大坝监测, 2003, 27(3): 56-58. (FU Wei-jie, XIE Hong-lan, XU Guo-long. Automatic monitoring system of inner horizontal displacement in embankment dam[J]. Hydropower Automation and Dam Monitoring, 2003, 27(3): 56-58. (in Chinese)) [6] 皱 青, 谭志伟, 张礼兵, 等. 200 m级高面板堆石坝安全监测技术调查与总结报告[R]. 昆明: 昆明勘察设计研究院有限公司, 2014. (ZOU Qing, TAN Zhi-wei, ZHANG Li-bing, et al. Survey and summary report of safety monitor technology of 200 m high rockfill dam[R]. Kunming: Kunming Engineering Corporation Limited, 2014. (in Chinese)) [7] 王其富, 乔学光, 贾振安, 等. 布里渊散射分布式光纤传感技术的研究进展[J]. 传感器与微系统, 2007, 26(7): 7-9. (WANG Qi-fu, QIAO Xue-guang, JIA Zhen-an, et al. Research and development of brillouin distributed optical fiber technology[J]. Transducer and Microsystem, 2007, 26(7): 7-9. (in Chinese)) [8] 李化平. 物理测量的误差评定[M]. 北京: 高等教育出版社, 1993. (LI Hua-ping. Physical measurement error evaluation[M]. Beijing: Higher Education Press, 1993. (in Chinese)) [9] 张启岳. 土石坝观测技术[M]. 北京: 水利电力出版社, 1993. (ZHANG Qi-yue. Technology for safety monitoring of earth and rockfill dam[M]. Beijing: China Water Power Press, 1993. (in Chinese)) [10] 中华人民共和国水利部. 土石坝安全监测技术规范[S]. 北京: 水利电力出版社, 2012. (Ministry of Water Resources of the People's Republic of China. Technical specification for safety monitoring of earth and rockfill dam[S]. Beijing: China Water Power Press, 2012. (in Chinese)) [11] 何 宁, 陈生水, 何 斌, 等. 坝体全断面水平位移监测的分布式光纤测量方法及其系统[P]. ZL201310646844.9, 南京: 南京水利科学研究院, 2016. (HE Ning, CHEN Sheng-shui, HE Bin, et al. The method and system of monitoring horizontal displacement inside dam by distributed optical fiber[P]. ZL201310646844.9, Nanjing: Nanjing Hydraulic Research Institute, 2016. in Chinese)) [12] 傅中志, 霍家平, 傅 华. 习水县铜灌口水库灌区工程大坝筑坝材料试验及三维应力变形分析[R]. 南京: 南京水利科学研究院, 2013. (FU Zhong-zhi, HUO Jia-ping, FU Hua. Material test and three-dimensional stress and deformation analysis of Xishui Tongguankou concrete face rockfill dam[R]. Nanjing: Nanjing Hydraulic Research Institute, 2013. (in Chinese)) [13] 汪明元, 程展林, 林绍忠, 等. 水布垭面板堆石坝的三维弹塑性数值分析研究[J]. 岩土力学, 2004, 25(增刊2): 507-512. (WANG Ming-yuan, CHENG Zhan-lin, LIN Shao-zhong, et al. Research on 3D elastoplastic numerical analysis of stress and deformation of a concrete faced rockfill dam for Shuibuya Project[J]. Rock and Soil Mechanics, 2004, 25(S2): 507-512. (in Chinese))
