Dynamic Effect of the Earth Fissure Sites in the Yuncheng Basin, China

Earth fissures are widely distributed worldwide, and the Fenwei Basin in China is one of the regions with the most significant number and scale of fissures in the world. The Yuncheng Basin is an important constituent basin of the Fenwei Basin in China, where earth fissures are densely developed and...

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Bibliographic Details
Published in:Applied sciences 2023-09, Vol.13 (17), p.9923
Main Authors: Cao, Ge, Deng, Yahong, Chang, Jiang, Xuan, You, He, Nainan, Mu, Huandong
Format: Article
Language:English
Subjects:
amplification effect
Construction
earth fissure
Earthquakes
Fault lines
Groundwater
microtremor testing
Seismic engineering
spectrum analysis
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Summary:Earth fissures are widely distributed worldwide, and the Fenwei Basin in China is one of the regions with the most significant number and scale of fissures in the world. The Yuncheng Basin is an important constituent basin of the Fenwei Basin in China, where earth fissures are densely developed and cause severe damage. In particular, the impact of earth fissures on the seismic response of the site is still unknown and is an urgent problem that needs to be solved. Based on microtremor tests, three types of typical earth fissure sites in the Yuncheng Basin were selected for field testing. Through spectrum analysis, the dynamic response characteristics of the earth fissure sites were determined. The results show that the dynamic response of the site is significantly affected by the earth fissures. The dynamic response strength of the site is the largest on both sides of the earth fissures, and it decreases and gradually stabilizes with increasing distance from the fissures. The influence range of the earth fissures on the hanging side is slightly longer than the heading side.
ISSN:2076-3417
2076-3417
DOI:10.3390/app13179923