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首页> 外文期刊>Journal of Volcanology and seismology >On the Long-Range Influence of Earthquake Rupture Zones
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On the Long-Range Influence of Earthquake Rupture Zones

机译：论地震破裂区的远程影响

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This paper proposes a new approach to estimating the long-range influence of crustal volumes that involve anomalous stress behavior. It is shown that the consideration of this problem within elasticity theory underestimates the long-range action, determining a rapid decrease in the influence of the volume involving anomalous stresses on the state of stress in the earth crust, as one goes away from the source of the anomaly. In these approaches the influence of the anomaly at great distances (100 radii of the anomalous volume) is due to a reduction of strain by a factor of 10(6) compared with the deformation in the anomalous volume. It is proposed in estimating the long-range influence of anomalous volumes to take account of the fact that there are extensive regions in a supercritical state at different crustal horizons. Such regions are fault zones in the upper crust and layers of high fluid pressure in the middle crust (waveguides). The presence of regions of supercritical deformation where the earth behaves inelastically (pseudoplastic and quasiplastic behavior) produces a different regime of long-range influence due to incipient anomalies of stress, different from the purely elastic response. We showed that in the 2-D case (a plane horizontal layer) and the classical Coulomb-Mohr criterion, the reduction in the stress disturbance due to an anomalous inclusion can be given by the law 1/r (r is the lateral distance relative the center of the inclusion when normalized by the size of the inclusion). The expressions derived in this study show that the level of disturbed strain at great distances is reduced by a factor of only 100 when under horizontal compression or tension. This is lower by a factor of 10(4) compared with what would be expected in an elastic medium. Consequently, the change in the level of stress due to an anomaly in a medium that is experiencing irreversible deformation occurs at a substantially lower rate in relation to increasing distance than in
机译：本文提出了一种估算涉及异常应力行为的地壳体积远程影响的新方法。结果表明，在弹性理论中对这个问题的考虑低估了远程作用，确定了涉及涉及异常应力的体积对地壳状态的影响的快速减少，因为一个人远离源头异常。在这些方法中，异常在远距离（异常体积的100根半径）的异常的影响是由于与异常体积的变形相比，应变的减少10（6）。提出估计异常卷的远程影响，考虑到不同地壳视野的超临界状态存在广泛的区域。这些区域是上层地壳中的断层区域和中地壳（波导）中的高流体压力层。由于初始弹性反应的初始强调，地球行为（假塑料和Quasiasastic行为）产生超临界变形的区域的存在，从而产生不同的强调的异常的远程影响的不同状态。我们表明，在2-D情况下（平面水平层）和经典库仑 - MOHR标准，法律1 / R（R是横向距离相对的引起的夹杂物引起的应力干扰的降低在夹杂物的大小归一化时纳入的中心）。在本研究中衍生的表达表明，在水平压缩或张力下，距离距离处的受扰动应变水平仅为100。与在弹性介质中的预期相比，这较低了10（4）倍。因此，在经历不可逆变形的介质中由于异常而导致的压力水平的变化以与增加的距离相比的基本上更低的速率发生

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