Seismic ground motion amplification pattern induced by a subway tunnel: Shaking table testing and numerical simulation |
| |
| Institution: | 1. School of Civil Engineering, Iran University of Science and Technology, Tehran, Iran;2. Center of Excellence for Fundamental Studies in Structural Engineering, School of Civil Engineering, Iran University of Science and Technology, Tehran, Iran;1. Center of Excellence for Fundamental Studies in Structural Engineering, School of Civil Engineering, Iran University of Science and Technology, Tehran, Iran;2. School of Civil Engineering, Iran University of Science and Technology, Tehran, Iran;3. Department of Civil Engineering, National Central University, Chungli, Taoyuan, Taiwan;4. Department of Civil Engineering, National Central University, Chungli, Taoyuan, Taiwan;1. Department of Civil Engineering, Zanjan Branch, Islamic Azad University, Zanjan, Iran;2. Geotechnical Engineering Research Center, International Institute of Earthquake Engineering and Seismology (IIEES), No. 26, Arghavan Street, North Dibajee, Farmanieh, Tehran, Iran;3. Department of Civil Engineering, Science and Research Branch, Islamic Azad University, Tehran, Iran;1. Aristotle University of Thessaloniki, Department of Civil Engineering, Research Unit of Soil Dynamics and Geotechnical Earthquake Engineering, Thessaloniki, Greece;2. Institute of Engineering Seismology and Earthquake Engineering, EPPO-ITSAK, Thessaloniki, Greece;3. IFSTTAR French Institute of Science and Technology for Transport, Development and Networks, Nantes, France;1. National Research Council of Italy, Institute of Environmental Geology and Geo-Engineering, Rome, Italy;2. Department of Civil, Architectural and Environmental Engineering of University of Naples Federico II, Naples, Italy;3. Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Tongji University, Shanghai 200092, China;4. State Key Laboratory for Disaster Reduction in Civil Engineering, Tongji University, Shanghai 200092, China;1. Aristotle University of Thessaloniki, Department of Civil Engineering, Thessaloniki, Greece;2. University of Cambridge, Schofield Centre, Cambridge, UK;1. Aristotle University of Thessaloniki, Research Unit of Soil Dynamics and Geotechnical Earthquake Engineering, Department of Civil Engineering, PO Box 424, GR-54124 Thessaloniki, Greece;2. University of Catania, Department of Civil and Environmental Engineering, Sicily, Italy |
| |
| Abstract: | A series of 1 g shaking table tests, followed by the numerical simulations, is performed to investigate the effect of a circular subway tunnel on the ground motion amplification pattern. Effects of various parameters, including shear wave velocity of soil, frequency content of input motion, flexibility ratio and tunnel depth on the amplification pattern is investigated. Experimental study revealed that the tunnel did not affect free field response at dimensionless period greater than 10. Subsequent parametric study demonstrated that the amount of amplifications were mainly controlled by dimensionless period, dimensionless depth and flexibility ratio. Tunnel effect on the amplification pattern is more prominent for dimensionless period between 3 to 10, flexibility ratio greater than 1 and dimensionless depth less than 3. The study revealed that subway tunnel influences the seismic response of low period buildings, constructed above the tunnel. |
| |
| Keywords: | Subway tunnel Amplification pattern Acceleration Ground surface Numerical simulation |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
