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首页> 外文期刊>Geotechnical & Geological Engineering >Liquefaction Hazard Assessment of Earth Quake Prone Area: a Study Based on Shear Wave Velocity by Multichannel Analysis of Surface Waves (MASW)
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Liquefaction Hazard Assessment of Earth Quake Prone Area: a Study Based on Shear Wave Velocity by Multichannel Analysis of Surface Waves (MASW)

机译：地震多发地区液化危险性评估：基于横波多通道分析的横波速度的研究

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摘要

The shear wave velocity (VS) profile based on the dispersive characteristics of fundamental mode of Rayleigh type surface waves indicate underground stiffness change with depth as well as near surface stiffness. The most important utility of shear wave velocity (VS) is to estimate the liquefaction hazard potential of an area particularly in seismically active region. Rayleigh type surface waves were utilized to estimate the velocity (VS) of shallow subsurface covering a depth range of 30–50 m employing multichannel analysis of surface waves. The liquefaction hazard map predicts an approximate percentage of an area that will have surface manifestation of liquefaction during an earth quake. The surface wave data acquired in an earth quake prone region of Jabalpur (Seismic zone III), India, yields a velocity (VS) range of 200–750 m/s corresponding to the subsurface depth of 30–35 m. The results were analyzed for possible liquefaction hazard in the study area and presented here besides the N values.
机译：基于瑞利型表面波基本模式的色散特性的剪切波速度（V S ）曲线表明地下刚度随深度以及近地表刚度而变化。剪切波速度（V S ）的最重要用途是估算某个区域的液化危险潜力，尤其是在地震活跃地区。利用表面波多通道分析，利用瑞利型表面波来估计覆盖30–50 m深度范围的浅层地下速度（V S ）。液化危险图可预测在地震期间液化的表面表现形式的大约百分比。在印度贾巴尔普尔（地震三区）地震多发地区采集的表面波数据产生的速度（V S ）范围为200-750 m / s，对应于地下30层深度–35 m。分析结果以研究区域中可能的液化危害，并在此处给出N值。

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