不同力源作用下九江地震台井水位仪与伸缩仪的体应变响应分析
|
摘要
根据潮汐因子计算结果,确定了井水位观测格值。又由线应变和水位与体应变转换公式,分别计算了在固体潮、大气压、强远震和承压含水层排水作用下伸缩仪与水位仪的的体应变响应量,二者相对变化率(体应变比值)在0.242~0.668之间,分析比较了二者的响应特征,并初步解释了水位与应变同步变化的物理机制。
Based on calculation results of the tidal factor,the paper determines the value of the observation grid of well water level. Then,according to conversion formula of the linear strain and volumetric strain,the paper calculates the volumetric strain magnitudes of the extensometer and water-level instrument caused by tide,atmospheric pressure,strong teleseismics and drainage action of confined aquifer. The relative variance ratios of volumetric strain are between 0.242 and 0.668. The paper analyzes the response characteristics of both,and preliminarily explains the physical mechanism of synchronous changes in the water level and the strain.
Based on calculation results of the tidal factor,the paper determines the value of the observation grid of well water level. Then,according to conversion formula of the linear strain and volumetric strain,the paper calculates the volumetric strain magnitudes of the extensometer and water-level instrument caused by tide,atmospheric pressure,strong teleseismics and drainage action of confined aquifer. The relative variance ratios of volumetric strain are between 0.242 and 0.668. The paper analyzes the response characteristics of both,and preliminarily explains the physical mechanism of synchronous changes in the water level and the strain.
引文
[1]Bodvarsson G.Confined fluids as strain meters[J].J Geophy Res,1970,75(14):2711-2718.
[2]汪成民,车用太,万迪堃,等,地下水微动态研究[M].北京:地震出版社,1988.
[3]刘序俨,郑小菁,王林,等.承压井水位观测系统对体应变的响应机制分析[J].地球物理学报,2009,52(12):3147-3157
[4]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.
[5]陈莹,刘序俨.汶川大震时福建四种观测系统的体应变响应分析[J].华南地震,2009,29(4):85-94.
[6]李航.地下水位与应变的相关性分析[J].内陆地震,2001,15(3):247-251.
[7]江西地质矿产勘查开发局.中华人民共和国地质图说明书(海会幅H-50-89-A)[M].北京:地质出版社,1993.
[8]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.
[9]苏恺之,李海亮,张钧,等,钻孔地应变观测新进展[M].北京:地震出版社,2003.
[10]张凌空,牛安福,不同周期气压波对钻孔体应变仪观测结果的影响[J].中国地震,2008,24(4),415-421.
[11]H H Cooper.The Response of Well-Aquifer Systems to Seismic Waves[J].J Geophysical Res,1965,70(16):3915-3926
[12]车用太,王铁成,鱼金子.我国水震波研究的现状与动向[J].地震,1989(20):70-72
[13]刘序俨,郑小菁,陈莹,等,承压井与非承压井水位潮汐效应及其定量分析[J].大地测量与地球动力学,2013,33(1):35-39.
[14]毛根海,邵卫云,张燕,等,应用流体力学[M].北京:高等教育出版社,2006,.
[2]汪成民,车用太,万迪堃,等,地下水微动态研究[M].北京:地震出版社,1988.
[3]刘序俨,郑小菁,王林,等.承压井水位观测系统对体应变的响应机制分析[J].地球物理学报,2009,52(12):3147-3157
[4]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.
[5]陈莹,刘序俨.汶川大震时福建四种观测系统的体应变响应分析[J].华南地震,2009,29(4):85-94.
[6]李航.地下水位与应变的相关性分析[J].内陆地震,2001,15(3):247-251.
[7]江西地质矿产勘查开发局.中华人民共和国地质图说明书(海会幅H-50-89-A)[M].北京:地质出版社,1993.
[8]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.
[9]苏恺之,李海亮,张钧,等,钻孔地应变观测新进展[M].北京:地震出版社,2003.
[10]张凌空,牛安福,不同周期气压波对钻孔体应变仪观测结果的影响[J].中国地震,2008,24(4),415-421.
[11]H H Cooper.The Response of Well-Aquifer Systems to Seismic Waves[J].J Geophysical Res,1965,70(16):3915-3926
[12]车用太,王铁成,鱼金子.我国水震波研究的现状与动向[J].地震,1989(20):70-72
[13]刘序俨,郑小菁,陈莹,等,承压井与非承压井水位潮汐效应及其定量分析[J].大地测量与地球动力学,2013,33(1):35-39.
[14]毛根海,邵卫云,张燕,等,应用流体力学[M].北京:高等教育出版社,2006,.
版权所有：© 2023 中国地质图书馆 中国地质调查局地学文献中心