首页|Single-station microtremor surveys for site characterization:A case study in Erzurum city,eastern Turkey
Single-station microtremor surveys for site characterization:A case study in Erzurum city,eastern Turkey
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NETL
NSTL
万方数据
The single-station microtremor method is one of the fastest,most reliable,and cheapest methods used to identify dynamic soil properties.This study utilizes 49 single-station microtremor measurements to identify the dynamic soil properties of the Hilalkent quarter of the Yakutiye district in Erzurum.Soil dominant frequency and the amplification factor were calculated by using the Nakamura horizontal/vertical spectral ratio(H/V)method.While the soil dominant frequency values varied between 0.4 Hz and 10 Hz,the soil amplification factor changed between 1 and 10.Higher H/V values were acquired with lower frequency values.The vulnerability index(Kg)and shear strain parameters that are utilized to estimate the damage that may be caused by an earthquake were mapped.Especially in the west side of the study area,higher Kg values were observed.The shear strain map was created with 0.25 g,0.50 g and 0.75 g bedrock accelerations,and soil types that lost elasticity during an earthquake were identified.The average shear wave velocity for the first 30 m(Vs30)was calculated.Finally,it was observed that the western part of the study area,which resulted in a higher period and higher H/V,higher Kg and lower Vs30 values,presents a higher risk of damage during an earthquake.
NETL
NSTL
万方数据
