The Development of a 2-Dimensional Microtremor Survey Method Based on Spac Method using Sequential Linear Arrays
The Development of a 2-Dimensional Microtremor Survey Method Based on Spac Method using Sequential Linear Arrays
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基于空间法的序列线阵二维微震测量方法的发展
DOI：
10.3997/2214-4609-pdb.247.11
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
Haldun Bingol
中科院分区：
文献类型：
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作者：
Takaho Kita;K. Hayashi;Haldun Bingol
近年来，岩土工程和地震工程领域对快速、经济地获取横波速度剖面的需求越来越大。为了满足这种需要，已经开发了许多类型的表面波方法，并且已经变得广泛。然而，要找到能迅速提供大于30米深度处剪切波速度横截面的测量方法并不容易。为了克服这一局限性，我们在SPAC方法的基础上发展了一种新的二维地脉动观测方法。我们称这种测量方法为“二维线阵微动测量（2D-LAMS）方法”。我们将这种新方法应用于实地调查，并对结果进行了评估。因此，我们证实，由这种新方法获得的横波速度的横截面是一致的，通过常规的地球物理勘探方法，如2D-MASW，地震反射测量和电阻率测量所获得的横截面。与MASW相比，二维线阵微动探测方法在探测深度方面具有优势。此外，与其他传统测量方法比较，这种方法不易受环境噪音影响。
The demand to quickly and economically obtain S-wave velocity profiles in geotechnical and seismic engineering fields has been increasing recently. in order to satisfy this need, many types of surface wave methods have been developed and have become widespread. It is, however, not easy to find survey methods which rapidly provide cross sections of the shear-wave velocities at depths of greater than about 30m. in order to overcome this limitation, we have developed a new 2-dimensional microtremor survey method based on the SPAC method using sequential linear arrays. We call this survey method “2-Dimensional Linear Array Microtremor Survey (2D-LAMS) Method”. We applied this new method to field surveys and evaluated the results. Consequently, we confirmed that the cross sections of the shear-wave velocities obtained by this new method were consistent with the cross sections obtained by such conventional geophysical survey methods as 2D-MASW, seismic reflection surveys and electrical resistivity surveys. the 2-Dimensional Linear Array Microtremor Survey Method has advantages in terms of the depths of Investigation in comparison with MASW. in addition, this method is less susceptible to ambient noises when compared with the other conventional survey methods.