基于微震监测的大岗山高拱坝坝踵蓄水初期变形机制研究

doi:10.13722/j.cnki.jrme.2016.1436

Abstract
Figure/Table
References (0)
Related Citation (15)

Download: PDF (13220 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract The safety of the heel of the concrete high arch dam is highly concerned during the initial impoundment. The microseismic monitoring system was installed for the first time in China at the high arch dam heel. The real-time monitoring of the micro-cracks was achieved in the heel zone of the Dagangshan arch dam during the initial impoundment. The deformation mechanism of the arch dam heel and its relationship with the microseismic activities were investigated. The P wave velocity was determined using the manual tapping test and was 4 300 m/s with the error of system positioning less than 8 m. The event waveforms were denoised. The automatic positioning results were manually verified for better accuracy. The results proved the feasibility of applying the microseismic monitoring technology in the large-scale concrete structures. During the initial impoundment period，the microseismic activities of the high arch dam heel were closely related to the water level of reservoir. The accumulation area of micro-cracks was transferred from the dam heel to the dam toe. The deformation of the toe area of dam increased and of the heel area decreased. The process of microseismic deformation of the dam heel zone revealed the inducement of the crack at the base corridor vault at the elevation of 940 m. The results can provide reference for the studies on the microseismic monitoring of concrete high arch dams as well as the dam working performances.

Key words： rock mechanics high arch dam impoundment period microseismic monitoring arch dam heel deformation arch dam toe

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	MA Ke1
	JIN Feng2
	TANG Chun?an1
	LU Pengfei3
	ZHUANG Duanyang1

Cite this article:

MA Ke1,JIN Feng2,TANG Chun?an1, et al. Deformation mechanism of the dam heel of Dagangshan high arch dam based on microseismic monitoring during initial impoundment[J]. , 2017, 36(5): 1111-1121.

URL:

http://www.rockmech.org/EN/10.13722/j.cnki.jrme.2016.1436 OR http://www.rockmech.org/EN/Y2017/V36/I5/1111

[9]	LONDE P. The Malpasset dam failure[J]. Engineering Geology，1987，24(1/4)：295-329.
[10]	KIERSCH G A. Vaiont reservoir disaster[J]. Civil Engineering，1964，34(2)：32-39.
[21]	李蒲健，魏鹏，张群. 拉西瓦水电站首次蓄水期拱坝主要性态综述[J]. 水力发电，2009，35(11)：12-15.(LI Pujian，WEI Peng，ZHANG Qun. Behavior of Laxiwa Ach dam in the period of first impounding[J]. Water Power，2009，35(11)：12-15.(in Chinese))
[29]	纪洪广，贾立宏，李造鼎. 混凝土损伤的声发射模式研究[J]. 声学学报，1996，2(增4)：601-608.(JI Hongguang，JIA Lihong，LI Zaoding. Study on the AE-model of concrete damage[J]. Acta Acustica，1996，2(Supp.4)：601-608.(in Chinese))
[17]	YUAN H，LI D D，ZHANG K. Study on security risk of impounding safety in China[C]// Advanced Materials Research. [S. l.]：Trans. Tech. Publications，2013：1 119-1 122.
[20]	舒涌. 二滩拱坝初次蓄水的变位监测反分析[J]. 水电站设计，2006，22(2)：34-41.(SHU Yong. Back analysis of displacement monitoring results during Ertan arch dam fist impoundment[J]. Design of Hydroelectric Power Station，2006，22(2)：34-41.(in Chinese))
[28]	陈兵，姚武，吴科如. 声发射技术在混凝土研究中的应用[J]. 无损检测，2000，22(9)：387-390. (CHEN Bing，YAO Wu，WU Keru. Application of acoustic emission technique to the study of concrete[J]. Nondestructive Testing，2000，22(9)：387-390.(in Chinese))
[3]	OKAMOTO S，MIZUKOSHI T，MIYATA Y. On the observations of microearthquake activity before and after impounding at the Takase Dam. A special report[J]. Physics of the Earth and Planetary Interiors，44(2)：115-133.
[1]	邢林生，周建波. 大坝蓄水初期事故分析[J]. 水力发电，2015，41(1)：31-35.(XING Linsheng，ZHOU Jianbo. Accident analysis of dam in initial impoundment period[J]. Water Power，2015，41(1)：31-35.(in Chinese))
[5]	杨强，潘元炜，程立，等. 高拱坝谷幅变形机制及非饱和裂隙岩体有效应力原理研究[J]. 岩石力学与工程学报，2015，34(11)：2 258-2 269.(YANG Qiang，PAN Yuanwei，CHENG Li，et al. Mechanism of valley deformation of high arch dam and effective stress principle for unsaturated fractured rock mass[J]. Chinese Journal of Rock Mechanics and Engineering，2015，34(11)：2 258- 2 269.(in Chinese))
[8]	PEMYAKOVA L S，EPIFANOV A P. Formation of the stress-strain state of the dam at the Sayano-Shushenskaya HPP during 2010 filling of reservoir[J]. Power Technology and Engineering，2011，45(3)：188-192.
[12]	陈胜宏，汪卫明，徐明毅，等. 小湾高拱坝坝踵开裂的有限单元法分析[J]. 水利学报，2003，34(1)：66-71.(CHEN Shenghong，WANG Weiming，XU Mingyi，et al. FEM analysis of heel cracking of Xiaowan high arch dam[J]. Journal of Hydraulic Engineering，2003，34(1)：66-71.(in Chinese))
[13]	朱伯芳. 建设高质量永不裂缝拱坝的可行性及实现策略[J]. 水利学报，2006，37(10)：1 155-1 161.(ZHU Bofang. On the feasibility of building high quality arch dams without cracking and the relevant techniques[J]. Journal of Hydraulic Engineering，2006，37(10)：1 155- 1 161.(in Chinese))
[15]	SUN S A，XIANG A M，PING Z，et al. Gravity change and its mechanism after the first water impoundment in three gorges project[J]. Acta Seismologica Sinica，2006，28(5)：485-492.
[22]	赵永. 大朝山重力坝蓄水期实测水平变形分析[J]. 大坝与安全，2004，(6)：48-51.(ZHAO Yong. Study on level displacement observed during the reservoir in Dachaoshan project[J]. Dam and Safety，2004，(6)：48-51.(in Chinese))
[24]	韩世栋，赵斌，廖占勇，等. 小湾特高拱坝蓄水初期垂线监测成果分析评价[J]. 大坝与安全，2010，3：38-41.(HAN Shidong，ZHAO Bin，LIAO Zhanyong，et al. On monitoring data by plumb lines in early impoundment period of Xiawan dam[J]. Dam and Safety，2010，3：38-41.(in Chinese))
[25]	张冲，王仁坤，汤雪娟. 溪洛渡特高拱坝蓄水初期工作状态评价[J]. 水利学报，2016，46(1)：85-93.(ZHANG Chong，WANG Renkun，TANG Xuejuan. Safety evaluation of Xiluodu ultra-high arch dam during the initial impoundment period[J]. Journal of Hydraulic Engineering，2016，46(1)：85-93.(in Chinese))
[36]	GROSSE C U，OHTSU M. Acoustic emission testing[M]. New York：Springer，2008：31.
[2]	汝乃华，姜忠胜. 大坝事故与安全：拱坝[M]. 北京：中国水利水电出版社，1995：1-339.(RU Naihua，JIANG Zhongsheng. Dam failure and safety：arch dam[M]. Beijing：China Water Power Press，1995：1-339.(in Chinese))
[4]	罗丹旎，林鹏，李庆斌，等. 溪洛渡特高拱坝初期蓄水工作性态分析研究[J]. 水利学报，2014，45(1)：18-26.(LUO Danni，LIN Peng，LI Qingbin，et al．Performance analysis of Xiluodu super-high arch dam in im-pounding period[J]. Journal of Hydraulic Engineering，2014，45(1)：18-26.(in Chinese))
[6]	周秋景，张国新，刘毅. 特高拱坝初次蓄水期工作性态仿真反馈和预测方法研究[J]. 水利学报，2013，43(增1)：73-79.(ZHOU Qiujing，ZHANG Guoxin，LIU Yi. A regression analysis and simulation feedback-prediction method for behavior of super high arch dam during first impounding period[J]. Journal of Hydraulic Engineering，2013，43(Supp.1)：73-79.(in Chinese))
[7]	ALEKSANDROVSKAY É K. Stress-strain state of the Sayano-Shushenskoe dam during filling of the reservoir[J]. Hydrotechnical Construction，1986，20(3)：123-129.
[11]	潘坚文，金峰，徐艳杰，等. KOLNBREIN拱坝坝踵开裂探讨及极限承载力分析[J]. 水力发电学报，2010，29(3)：148-153.(PAN Jianwen，JIN Feng，XU Yanjie，et al. Analysis of dam heel cracking and ultimate bearing capacity of KÖLNBREIN arch dam[J]. Journal of Hydroelectric Engineering，2010，29(3)：148-153. (in Chinese))
[14]	ZHANG G，LIU Y，ZHENG C，et al. Simulation of influence of multi-defects on long-term working performance of high arch dam[J]. Science China Technological Sciences，2011，54(1)：1-8.
[16]	TOMIDA N，SATO N， SODA H，et al. Estimation of rockfill dam behavior during impounding by elasto-plastic model[C]// SCHLEISS A J，BOES R M ed. Dams and Reservoirs under Changing Challenges. London：Taylor and Francis Group，2011：27-34.
[18]	ZHOU Q J，ZHANG G X，LIU Y. Prediction of and early warning for deformation and stress in the Xiaowan arch Dam during the first impounding stage[C]// Applied Mechanics and Materials. [S. l.]：Trans. Tech. Publications，2013：2 463-2 472.
[19]	李瓒. 石门拱坝的坝踵裂缝[J]. 水利学报，1999，(11)：61-65.(LI Zan. Study on cracks at the heel of the arch dam of Shimen project[J]. Journal of Hydraulic Engineering，1999，(11)：61-65.(in Chinese))
[23]	魏超，田振华，张博. 李家峡拱坝水平变形监测资料统计模型对比分析[J]. 河海大学学报：自然科学版，2010，38(6)：651-654.(WEI Chao，TIAN Zhenhua，ZHANG Bo. Statistical model analysis of observed data of horizontal displacement of Lijiaxia arch dam[J]. Journal of Hohai University：Natural Science，2010，38(6)：651-654.(in Chinese))
[27]	张泷，刘耀儒，杨强，等. 基于地质力学模型试验的大岗山拱坝整体稳定性分析[J]. 岩石力学与工程学报，2014，33(5)：971-982.( ZHANG Long，LIU Yaoru，YANG Qiang，et al. Geomechanical model tests on global stability of an arch dam at Dagangshan[J]. Chinese Journal of Rock Mechanics and Engineering，2014，33(5)：971-982.(in Chinese))
[31]	胡少伟，陆俊，范向前. 混凝土断裂试验中的声发射特性研究[J]. 水力发电学报，2011，30(6)：16-19.(HU Shaowei，LU Jun，FAN Xiangqian. Study on acoustic emission technique for normal concrete fracture test[J]. Journal of Hydroelectric Engineering，2011，30(6)：16-19.(in Chinese))
[32]	刘超，唐春安，李连崇，等. 基于背景应力场与微震活动性的注浆帷幕突水危险性评价[J]. 岩石力学与工程学报，2009，28(2)：366-372.(LIU Chao，TANG Chun′an，LI Lianchong，et al. Analysis of probability of water inrush from grout curtain based on background stress field and microseismicity[J]. Chinese Journal of Rock Mechanics and Engineering，2009，28(2)：366-372.(in Chinese))
[33]	XU N W，TANG C A，LI L C，et al. Microseismic monitoring and stability analysis of the left bank slope in Jinping first stage hydropower station in southwestern China[J]. International Journal of Rock Mechanics and Mining Sciences，2011，48(6)：950-963.
[35]	纪洪广，侯昭飞，张磊，等. 混凝土材料声发射信号的频率特征及其与强度参量的相关性试验研究[J]. 应用声学，2011，30(2)：112-117.(JI Hongguang，HOU Zhaofei，ZHANG Lei，et al. Experimental studies on the frequency characteristics of acoustic emission in concrete material and its dependence on strength parameters[J]. Applied Acoustics，2011，30(2)：112-117.(in Chinese))
[37]	EKSTROM G，ENGLAND P. Seismic strain rates in regions of distributed continental deformation[J]. Journal of Geophysical Research：Solid Earth，1989，94(B8)：10 231-10 257.
[26]	董建华，谢和平，张林，等. 大岗山双曲拱坝整体稳定三维地质力学模型试验研究[J]. 岩石力学与工程学报，2007，26(10)：2 027-2 033.(DONG Jianhua，XIE Heping，ZHANG Lin，et al. Experimental study of 3D geomechanical model on global stability of Dagangshan double curvature arch dam[J]. Chinese Journal of Rock Mechanics and Engineering，2007，26(10)：2 027-2 033.(in Chinese))
[30]	唐春安，朱万成. 混凝土损伤与断裂——数值试验[M]. 北京：科学出版社，2003：13.(TANG Chun′an，ZHU Wancheng. Concrete damage and failure—numerical test[M]. Beijing：Science Press，2003：13.(in Chinese))
[34]	马克，唐春安，梁正召，等. 基于微震监测的地下水封石油洞库施工期围岩稳定性分析[J]. 岩石力学与工程学报，2016，35(7)：1 353-1 365.(MA Ke，TANG Chun′an，LIANG Zhengzhao. Stability analysis of the surrounding rock of underground water-sealed oil storage caverns based on microseismic monitoring during construction[J]. Chinese Journal of Rock Mechanics and Engineering，2016，35(7)：1 353-1 365.(in Chinese))
[38]	MAXWELL S C，URBANCIC T I，PRINCE M，et al. Passive imaging of seismic deformation associated with steam injection in Western Canada[C]//SPE Annual Technical Conference and Exhibition. Society of Petroleum Engineers，SPE84572，2003.