Effect of Geological Conditions on Vibration Characteristics of Ground Due to Subway Tunnel: Field Investigation
| Autor: | Yahua Wang, Song Yue, Qiang Chen, Ming-tao Gao |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Vibration acceleration
Hydrogeology Field (physics) 0211 other engineering and technologies Soil Science Moving load Geology 02 engineering and technology 010502 geochemistry & geophysics Geotechnical Engineering and Engineering Geology Octave (electronics) 01 natural sciences Frequency spectrum Vibration Architecture Geotechnical engineering Ground vibrations 021101 geological & geomatics engineering 0105 earth and related environmental sciences |
| Zdroj: | Geotechnical and Geological Engineering. 39:4689-4696 |
| ISSN: | 1573-1529 0960-3182 |
| DOI: | 10.1007/s10706-021-01767-2 |
| Popis: | Field measurements of the ground vibrations due to subway moving load are carried out in two distinct geological conditions (soft soil ground, granite ground) in China. Vibration measurements are performed on the tunnel ground after the vibration generated by another running subway transmitting in the medium. Vibration accelerations, frequency spectrum and 1/3 octave curves are obtained and the effects of geological conditions of the measured ground vibrations are well considered. It is found that vibration acceleration of the granite ground is approximately 5 times higher than soft soil ground under the subway trains moving load. In addition, much higher frequency vibrations is observed in the granite ground, which is absent in the soft soil ground. Furthermore, the maximum vibration level in granite ground is nearly 90 dB that seriously affects adjacent structures, sensitive machineries, and even passengers. |
| Databáze: | OpenAIRE |
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