福建省井水位、体应变仪与伸缩仪对汶川地震的响应分析
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摘要
在对福建井水位观测值进行格值标定的基础上,分别对井水位、体应变仪、伸缩仪对四川汶川8.0级大震的体应变响应进行了分析。结果表明,上述3种观测系统的体应变响应约为10-7～10-8数量级,与月亮与太阳的起潮力所引起的二阶位的半日波的体应变相当。
On the basis of the scale value calibration of well-water-level system in Fujian,the body strain responses of well water level,body strainmeter and extensometer to Wenchuan Ms8.0 earthquake are analyzed.The results show that all the response extent of above three instruments is about 10-7～10-8 which corresponds to the body strain of semi-diurnal wave induced by tide-generating force from moon and sun.
On the basis of the scale value calibration of well-water-level system in Fujian,the body strain responses of well water level,body strainmeter and extensometer to Wenchuan Ms8.0 earthquake are analyzed.The results show that all the response extent of above three instruments is about 10-7～10-8 which corresponds to the body strain of semi-diurnal wave induced by tide-generating force from moon and sun.
引文
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2汪成民,等.地下水微动态研究[M].北京:地震出版社,1988.(Wang Chengmin,et al.Ground water micro dynam-ics research[M].Beijing:Earthquake Press,1988)
3车用太,等.三峡井网地下流体动态在水库蓄水前后的变化[J].大地测量与地球动力学,2004,(2):14-22.(Che Yongtai,et al.Subsurface fluid behaviors and its changes in Three Gorges well network before and after[J].Jouranl of Geodesy and Geodynamics,2004,(2):14-22)
4张卫华,等.长江三峡水库二期蓄水前后地下水动态特征分析[J].大地测量与地球动力学,2007,(5):94-98.(Zhang Weihua,et al.Anslysis of dynamic characteristics of ground water before and after second impoundment of Three Gorges reservoir[J].Jouranl of Geodesy and Geodynamics,2007,(5):94-98)
5王吉易,董守玉,陈建民.地下流体地震预报方法[M].北京:地震出版社,1997.(Wang Jiyi,Dong Shouyu and Chen Jianming.The methods of earthquake prediction through subsurface fluid observation[M].Beijing:Seismological Press,1997)
6Brodsky E E,et al.A mechanism for sustained groundwater pressure changes induced by distant earthquakes[J].Jour-nal of Geophysical Research,2003,108(B8)2390.doi:1029/2002JB002321,2003,SDE10.1-10.4.
7Chia Y P,et al.Changes of ground water level due to the1999Chi-Chi earthquake in the Choshui river Alluvial Fan[J].Bulletin of Seismological Society of America,2001,91(5):1062-1068.
8郑小菁,陈莹.福建数字地下流体网对远处大震映震能力分析[J].国际地震动态,2007,3:31-37.(Zheng Xiao-jing and Chen Ying.Analysis on the reflecting capacity for large distant earthquakes by use of digital underground water monitoring network in Fujian Province[J].Recent Develop-ments in World Seismology.2007,3:31-37)
9刘序俨,等.福建井水位对汶川大震体应变的响应[J].大地测量与地球动力学,2009,(3):28-33.(Liu Xuyan,etal.Response of well level to crust body strain caused by WenchuanM8.0earthquake[J].Jouranl of Geodesy and Ge-odynamics,2009,(3):28-33)
10晏锐,等.从昌平井体应变、水位对地震波的响应特征求算含水层的SKEMPTON常数[J].地震学报,2008,30(2):144-152.(Yan Rui,et al.Calculating B value of aquifer from volume strain and water level response to seis-mic waves at Changping seismostation[J].Acta Seismolog-ica Sinica,2008,30(2),144-152)
11W D米恩斯著.丁中一,殷有泉译.应力和应变[M].北京:科学出版社,1952.(Means W D(Author),Ding Zhongyi,Ying Youquan,Wang Ren(Tranl.).The stress and strain[M].Beijing:Science Press,1952)
12王敏中,王炜,武际可.弹性力学教程[M].北京:北京大学出版社,2002.(Wang Minzhong,Wang Wei and Wu Jike.The course of elastic mechanics[M].Beijing:Bei-jing University Publishing house,2002)
13刘序俨,黄声明,梁全强.正交曲线坐标系的应变张量转换[J].大地测量与地球动力学,2008,(2):71-76.(Liu Xuyan,Huang Shengming and Liang Quanqiang.Con-version of strain tensor metrice between two orthogonal cur-velinear coordinates[J].Jouranl of Geodesy and Geodynam-ics,2008,(2):71-76)
14中国地震局监测预报司编.地壳形变数字观测技术[M].北京:地震出版社,2003.(Sci-Technology and Mo-nitoring Deparmeat of China Earthquake Administration.Digital observation Technology for Seism-related crust de-formation[M].Beijing:Seismological Press,2003)
15刘序俨,李平,张雁滨.地表的面应变和体应变固体潮理论值计算及其调和分析[J].地壳形变与地震,1988,(4):354-358.(Liu Xuyan,Li Ping and Zhang Yanbin,Calculation of theoretical value of cubic expansion tide and its harmonic analysis[J].Crustal Deformation and Earth-quake,1988,(4):354-358)
16刘序俨,杨军.地壳形变分析预报方法[M].地震出版社,1998.(Liu Xuyan and Yang Jun.The methods of anal-ysis and predicting of crust deformation[M].Seismological,Press,1982)
17Thorne L and Terry C W.Modern global seismology[M].Academic Press.
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