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首页> 外文期刊>Journal of Hydrology >Characteristics of hydroseismograms in Jingle well, China
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Characteristics of hydroseismograms in Jingle well, China

机译：景乐井中水鼠动力图的特征

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摘要

Hydroseismograms reflect the oscillations of well water levels caused by seismic waves. In this study, the relationships between the hydroseismogram oscillation amplitude and three factors (seismic magnitude, epicentral distance, and focal depth) in Jingle well, China were analyzed. The results revealed that hydroseismogram amplitude increases exponentially with seismic magnitude as H-mag = (7.848 x 10(-8)) x e((2.1690xm)) + 0.047(m > Mw5.8) (m - seismic magnitude), decreases exponentially with epicentral distance as H-dis = (-2.1108 x 10(-5)) x e((2.3864x gamma)) + 0.011 (gamma - epicentral distance), and decreases exponentially with focal depth as H-dep = (-1.6438 x 10(-3)) x e((0.0254xd)) -0.203 (d is focal depth). However, these relationships become uncertain when the epicentral distance exceeds 4000 km and are not applicable to nuclear explosions. Based upon the single well-aquifer model constructed for Jingle well, the amplification (mu) of the water level oscillation by ground vibrations (mu = A(b)/A(a)= R-2 -R-2/r(2)) depends on the frequency of the water-level oscillations. For relatively high-frequency oscillations (caused by earthquakes with relatively small epicentral distances), the amplification will be small, while for low-frequency oscillations (caused by earthquakes with relatively large epicentral distances), the amplification will be large. Using the S-transform, the dominant hydroseismogram period increases with the epicentral distance as tau = 0.5826 x gamma + 12.51, which means that the amplification (mu) increases with the epicentral distance. Of course, the amplitude of ground oscillations will be greatly attenuated with increasing epicentral distance. Due to the anisotropy of the earth and seismic wave superposition, the relationships between the hydroseismogram amplitude and the seismic magnitude, epicentral distance, and focal depth become blurred or even uncertain with increasing epicentral distance and focal depth, leading to poor goodness-of-fit between the dominant hydroseismogram period and epicentral distance. The quantitative relationships between the hydroseismogram amplitude and the seismic magnitude, epicentral distance, and focal depth, which determine the ratio between the amplitudes of water-level oscillations and ground vibrations and the relationship between groundwater oscillations and seismic wave transmission, are proposed for the first time in the present work. These results will improve understanding of hydrogeological conditions and could also be important in identifying reliable earthquake precursors.
机译：Hydroseismograms反映引起的地震波以及水位的振荡。在这项研究中，hydroseismogram振荡幅度和丁当三个因素（震级，震中距和震源深度）以及之间的关系，中国进行了分析。结果表明，hydroseismogram振幅与地震量值H-MAG =（7.848×10（-8））XE（（2.1690xm））+ 0.047（M> Mw5.8）（米 - 地震幅度）指数地增加，降低指数地与震中距为H-DIS =（-2.1108×10（-5））XE（（2.3864x伽马））+ 0.011（γ - 震中距离），以及与焦点深度为H-DEP =呈指数下降（-1.6438 X 10（-3））XE（（0.0254xd））-0.203（d是焦深）。然而，当震中距超过4000公里这些关系变得不明朗，并不适用于核爆炸。基于用于叮铃构造的单井含水层模型井，水位振荡的扩增（MU）通过地面振动（亩= A（B）/ A（A）= R-2 -R-2 / R（2 ））取决于水位振荡的频率。对于相对高频振荡（由具有相对小的震中距地震），扩增将是​​小的，而对于低频振荡（与地震引起的相对大的震中距），扩增将是​​大的。使用S-变换，占主导地位的hydroseismogram周期增加与震中距离的tau = 0.5826 X伽马+ 12.51，这意味着与震中距扩增（亩）增加。当然，地振荡的幅度将大大随着震中距衰减。由于地球和地震波叠加的各向异性，hydroseismogram幅度和震级，震中距和震源深度之间的关系变得模糊不清，甚至随着震中距和震源深度不确定，导致拟合优度差主导hydroseismogram周期和震中距之间。的hydroseismogram振幅和地震幅度，震中距，和焦点深度之间的定量关系，由此确定的水位振荡的振幅和地面振动和地下水振荡和地震波传播之间的关系之间的比率，提出用于第一时间在目前的工作。这些结果将改善的水文地质条件的认识，也可能是很重要的识别可靠的地震前兆。

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