2017
DOI: 10.1007/s11589-017-0187-2
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Application of the microtremor measurements to a site effect study

Abstract: Earthquake has left much life and property damages. The occurrence of such events necessitates the execution of plans for combating the earthquakes. One of the most important methods for combating earthquakes includes assessing dynamic characteristics of soil and site effect. One of the methods by which one can state dynamic characteristics of the soil of an area is the measurement of microtremors. Microtremors are small-scale vibrations that occur in the ground and have an amplitude range of about 0.1-1 micro… Show more

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Cited by 30 publications
(5 citation statements)
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“…It is inferred that these shear wave velocities originate from the deeper strata. On the other hand, phase velocities lower than 300 m/s, as the fundamental mode [7], in a frequency range of 3-15 Hz come from shallower layers. Then, these dispersion curves were converted through inversion processing to estimate the shear-wave velocity (Vs) profiles versus depth, as shown in Figures The dispersion curves in Figure 4 could indicate that the phase shear-wave velocities (Vs) are higher than approximately 300 m/s, which is included in the higher mode [25], in a frequency interval of 1-3 Hz.…”
Section: Methodsmentioning
confidence: 99%
See 1 more Smart Citation
“…It is inferred that these shear wave velocities originate from the deeper strata. On the other hand, phase velocities lower than 300 m/s, as the fundamental mode [7], in a frequency range of 3-15 Hz come from shallower layers. Then, these dispersion curves were converted through inversion processing to estimate the shear-wave velocity (Vs) profiles versus depth, as shown in Figures The dispersion curves in Figure 4 could indicate that the phase shear-wave velocities (Vs) are higher than approximately 300 m/s, which is included in the higher mode [25], in a frequency interval of 1-3 Hz.…”
Section: Methodsmentioning
confidence: 99%
“…Furthermore, some researchers [4][5][6] have also studied the properties of shallow subsurface material by inverting the phase shear-wave velocity from microtremor surveys. The phase shear-wave velocity derived from microtremors versus frequency demonstrates the characteristics of near-subsurface ground [7]. Thus, having the Vs structure can be useful and is widely applied for generating the amplification factor, from which the microzonation map can be established [8].…”
Section: Introductionmentioning
confidence: 99%
“…To interpret these results, one can point to the fact that resonance frequency becomes higher in areas where the depth of the sedimentary cover is greater (Parolai et al 2001). According to Teves-Costa et al (1996); Parolai et al (2001); Gosar (2017) and Rezaei & Choobbasti (2017) this situation is characteristic of bedrock-soil environments because of the presence of bedrock strata far away from the surface.…”
Section: Microzonation Maps Of F0 and A0mentioning
confidence: 99%
“…Microtremor or ambient vibrations are de ned as vibrations with a displacement amplitude of roughly 0.1 to 1 micron and a velocity amplitude of 0.001 to 0.01 cm/s ( Okada & Suto, 2003;Choobbasti et al, 2015;Rezaei & Choobbasti, 2017) induced by both naturally occurring phenomena such as sea waves, earth's rotation and anthropogenic phenomena such as tra c movement and manufacturing machinery. By the measurement of such vibration one can predict ground response (Pandey, 2000;Paudyal et al, 2012), site ampli cation factor (Lu et al, 1992;Molnar et al, 2017), site classi cations (Kanlı et al, 2006;Sulistiawan et al, 2018), liquefaction (Choobbasti et al, 2015b;Huang & Tseng, 2002), and soil pro les (Cho et al, 2021;Karagoz et al, 2015;Ozep et al, 2004;Ridwan et al, 2014).…”
Section: Introductionmentioning
confidence: 99%