globalchange  > 气候变化与战略
DOI: 10.1007/s11069-021-04735-4
论文题名:
Seismic ambient noise tomography to retrieve near-surface properties in soils with significant 3D lateral heterogeneity: the case of Quinta Colorada building in Chapultepec, Mexico
作者: Cárdenas-Soto M.; Piña-Flores J.; Escobedo-Zenil D.; Vidal-Garcia M.C.; Natarajan T.; Hussain Y.; Sánchez-Sesma F.J.
刊名: Natural Hazards
ISSN: 0921030X
出版年: 2021
卷: 108, 期:1
起始页码: 129
结束页码: 145
语种: 英语
中文关键词: Ambient noise tomography ; HVSR method ; Local subsidence ; Seismic interferometry ; Surface waves
英文摘要: Structural failure due to local soil subsidence is a severe issue in the urban environment, particularly in cities located on thick sediments. We present such a case from Mexico City, where the near-surface soil characteristics beneath a subsided building were examined using 3D ambient noise tomography. We acquired data using dense arrays of 4.5 Hz vertical geophones placed around the building in two geometries. We performed cross-correlation analyses for 12 central frequencies in the range of 4–12 Hz to built tomographic images of surface wave group velocity. The results indicated a low-velocity layer (~ 120 m/s) for the first 10 m depth which we interpret as the typical clay layer of the Lake Zone of the city. Below, a more complex stiff layer (~ 500 m/s) appeared with significant lateral variations. In another independent analysis of HVSR, we observed that the site period varied between 0.4 and 0.55 s, which further signify the complexity of the subsurface. Thus, the conspicuous structural failure was due to the lack of stiffness of the shallow foundation, which subjected to differential motions between consistent materials from the foot of Chapultepec hill, and the soft lacustrine clays of the Lake Zone. As shown in this case, the seismic response variations in short distances, and short periods, for near-source events could be of great importance as demonstrated in Mexico City during the recent Puebla-Morelos Earthquake (M7.1) of September 19th, 2017. © 2021, The Author(s), under exclusive licence to Springer Nature B.V.
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被引频次[WOS]:2   [查看WOS记录]     [查看WOS中相关记录]
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/168934
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作者单位: Facultad de Ingeniería, Universidad Nacional Autónoma de México, Ciudad Universitaria, Apdo. Postal 70-472, Coyoacan Mexico City, 04510, Mexico; Centre for Earth Sciences, Indian Institute of Science, Bangalore, 560012, India; Department of Geology, University of Liege, Liege, Belgium; Instituto de Ingeniería, Universidad Nacional Autónoma de México, Ciudad Universitaria, Apdo. Postal 70-472, Coyoacan Mexico City, 04510, Mexico; Posgrado de Ingeniería, Universidad Nacional Autónoma de México, Ciudad Universitaria, Apdo. Postal 70-472, Coyoacán México City, 04510, Mexico

Recommended Citation:
Cárdenas-Soto M.,Piña-Flores J.,Escobedo-Zenil D.,et al. Seismic ambient noise tomography to retrieve near-surface properties in soils with significant 3D lateral heterogeneity: the case of Quinta Colorada building in Chapultepec, Mexico[J]. Natural Hazards,2021-01-01,108(1)
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