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rupture directivity
相关语句
  破裂方向性
    3-D simulation of near-field strong ground motion: basin edge effect derived from rupture directivity
    近场强地面运动的三维模拟:由破裂方向性推断盆地边缘效应
短句来源
    It is briefly described about the strong ground motion characteristics emerged from the strong motion accelerograms recorded from recent devastating earthquakes. They are the effects such as rupture directivity, hanging wall, crust wave guide, along with the amplification effect and the edge effect of sedimentary basin on strong ground motion.
    本文介绍了近几年获取的强震记录中显示出的地震动特征 ,诸如近断裂的破裂方向性效应、上盘效应、影响地震波传播的地壳波导效应、沉积盆地的放大效应和盆地边缘效应 ;
短句来源
  破裂的方向性
    RUPTURE DIRECTIVITY AND HANGING WALL EFFECT IN NEAR FIELD STRONG GROUND MOTION SIMULATION
    近场强地震动模拟中对破裂的方向性效应和上盘效应的表达
短句来源
    From the example of simulations at 21 near field points in a scenario earthquake with 4 dip angles of the fault plane, it is illustrated that the procedure can describe the rupture directivity and hanging wall effect very well.
    对一个设定地震,选用4个断层面倾角,计算了近场21个地点的地震动。 结果表明,本文方法可以很好地表达破裂的方向性效应和上盘效应。
短句来源
    The basic characteristics of near-fault ground motion,including the concentration of near-fault strong ground motions,the surface rupture and fling-step,the rupture directivity effect,the near fault large velocity pulse and the hanging wall effect,are discussed in this paper.
    本文对近断层地震动的基本特征作了详细分析,这些基本特征主要包括近断层强地震动的集中性、地表破裂、地面永久变形、破裂的方向性效应、近断层速度大脉冲和上盘效应。
短句来源
  “rupture directivity”译为未确定词的双语例句
    About 10 sub-events (6 occurred on the major fault and 4 on the minor fault) and the rupture directivity brought about the very complex P waveforms.
    在主断层和次断层上分别分布有6个和4个子地震。
短句来源
    For vertical strike-slip faults,the rupture directivity effect causes as strong spatial variation in ground motions for a given closest distance to the fault.
    对于垂直走滑断层,在给定的距断层最近的范围内,破裂方向效应使地震动产生强烈的空间变化.
短句来源
    For dip-slip faults,there are two prominent effects: the rupture directivity effect and hanging wall effect.
    对于倾滑断层,有两个显著的效应,即破裂方向效应和上盘效应.
短句来源
    The rupture directivity effect is due to rupture propagation and radiation pattern effects.
    破裂方向效应是由破裂传播和辐射图效应引起的.
短句来源
    The paper briefly described the characteristics of strong ground motion, such as rupture directivity, hanging wall, crust wave-guide, along with the amplification effect and the edge effect of sedimentary basin on strong ground motion.
    介绍了强地面运动的研究意义及其主要特征,包括近断层强地面运动的上盘效应和方向效应、地层结构对地震波传播过程的影响及沉积盆地的放大效应等。
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  rupture directivity
Rupture Directivity During the September 7, 1999 (Mw 5.9) Athens (Greece) Earthquake Inferred from Forward Modeling of Strong Gr
      
We have investigated reported rupture directivity and thepossibility of a circular rupture is also examined.
      
The rupture direction was toward the location of the cable break, thus rupture directivity possibly played a role in initiating the slide event.
      
Near-fault long-period ground motions are generated, for the most part, by the source effects of forward rupture directivity.
      
Significant engineeringcharacteristics of the near-field strong motions are discussed, with particularemphasis on the site conditions, rupture directivity effects and transversecomponent orientations relative to the fault.
      
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In this paper, Kikuchi and Kanamori's inversion method on the complex body waves was modified to cover the following: the subevents with geometry parameters of an added minor fault can distribute along the strikes of either the major fault or the minor fault; the rupture direction on the fault plane can be arbitrary.This technique was applied to the 29 May 1976, Longling earthquake (the first one). The results show that this event was caused by the activities of a nearly strike-slip major fault with strike 150°...

In this paper, Kikuchi and Kanamori's inversion method on the complex body waves was modified to cover the following: the subevents with geometry parameters of an added minor fault can distribute along the strikes of either the major fault or the minor fault; the rupture direction on the fault plane can be arbitrary.This technique was applied to the 29 May 1976, Longling earthquake (the first one). The results show that this event was caused by the activities of a nearly strike-slip major fault with strike 150° and a vertically dip-slip minor fault with the same strike. About 10 sub-events (6 occurred on the major fault and 4 on the minor fault) and the rupture directivity brought about the very complex P waveforms. Compared with its not very large magnitude, Longling earthquake is an unusually complex one.

本文发展了Kikuchi和Kanamori的P波反演方法,使之适应于多断层活动和破裂在断层面上沿任意方向传播的情况,并用来研究了1975年5月29日龙陵第一大震的震源过程。结果表明,该震是由一个以走滑错动为主的主断层(走向150°)和另一个走向相同但作垂直倾滑错动的次断层同时活动引起的。在主断层和次断层上分别分布有6个和4个子地震。这种多重破裂和破裂传播的方向性效应,使龙陵地震P波波形和震源过程非常复杂。

It is briefly described about the strong ground motion characteristics emerged from the strong motion accelerograms recorded from recent devastating earthquakes. They are the effects such as rupture directivity, hanging wall, crust wave guide, along with the amplification effect and the edge effect of sedimentary basin on strong ground motion. Three methods, i.e. experimental attenuation model, random vibration method and broad band Green function method for strong ground motion prediction were also...

It is briefly described about the strong ground motion characteristics emerged from the strong motion accelerograms recorded from recent devastating earthquakes. They are the effects such as rupture directivity, hanging wall, crust wave guide, along with the amplification effect and the edge effect of sedimentary basin on strong ground motion. Three methods, i.e. experimental attenuation model, random vibration method and broad band Green function method for strong ground motion prediction were also summarized and reviewed in this paper. Finally, the key points in predicting the strong ground motion caused by active faults are discussed.

本文介绍了近几年获取的强震记录中显示出的地震动特征 ,诸如近断裂的破裂方向性效应、上盘效应、影响地震波传播的地壳波导效应、沉积盆地的放大效应和盆地边缘效应 ;归纳了强地震动估计的三种方法 ,简要综述了经验性衰减模型、预测强地震动的随机法和宽频带格林函数法 ;讨论了估计活断层引起的地震动所应把握的要点

A random synthesis procedure based on finite fault model is adopted for near field strong ground motion simulation, in this paper. The fault plane of the source is divided into a number of sub-sources; the whole moment magnitude is also divided into more sub-events. The Fourier spectrum of ground motion caused by a sub-event in given sub-source, then can be derived by means of taking the point source spectrum, attenuation with distance, energy dissipation, and near surface effect, into account. A time history...

A random synthesis procedure based on finite fault model is adopted for near field strong ground motion simulation, in this paper. The fault plane of the source is divided into a number of sub-sources; the whole moment magnitude is also divided into more sub-events. The Fourier spectrum of ground motion caused by a sub-event in given sub-source, then can be derived by means of taking the point source spectrum, attenuation with distance, energy dissipation, and near surface effect, into account. A time history is synthesized from this amplitude spectrum and a random phase spectrum, combined with an envelope function. The ground motion is worked out by superposition of all time histories from each sub-event in each sub-source, with time lags that depend on the differences between the triggering times of sub-events and distances of the sub-sources. From the example of simulations at 21 near field points in a scenario earthquake with 4 dip angles of the fault plane, it is illustrated that the procedure can describe the rupture directivity and hanging wall effect very well. To validate the procedure, the response spectra and lime histories recorded at three near fault stations MCN, LV3 and PCD during the Northridge earthquake in 1994, are compared with the simulated ones.

为了模拟近场强地震动,采用了基于有限断层模型的一种随机合成方法。震源破裂面被剖分成一定数量的子源,总的地震矩分成数量更多的子震的矩。一给定子源中一次子震引起的场地地震动的傅氏谱,通过考虑点源的谱、随着距离的衰减、能量耗散及近地表效应等导出。据此幅值谱和一个随机相位谱,并与一个时程包络函数结合,合成一个子震时程。将各子源中各个子震引起的所有时程叠加,得出场地的地震动时程。叠加中,各子震时程之间的时滞,据子震发震时差和子源至场地的距离差别引起的时差确定。对一个设定地震,选用4个断层面倾角,计算了近场21个地点的地震动。结果表明,本文方法可以很好地表达破裂的方向性效应和上盘效应。为了验证方法的可靠性,对1994年美国北岭地震中3个近断层台站MCN,LV3和PCD模拟的地震动与实际记录的加速度反应谱和时程作了比较。

 
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