Abstract
In order to study the dynamic response of subway trains to adjacent tunnels at different distances, a numerical simulation method was used to establish a refined three-dimensional segment plus orthotropic material tunnel model, and an excitation load was applied on the track bed to simulate Subway moving load. The results show that as the vertical acceleration decreases, the vibration impact range gradually rises from the bottom of the tunnel to the top of the tunnel; the maximum position of the horizontal acceleration is at the waist of the arch, and the peak value increases significantly with the reduction of the net distance. The peak value is 4.25 times when the net distance is 6.0 m; horizontal vibration is the main direction that causes the stress to increase in the parallel short-distance tunnel; the net distance decreases from 6.0 to 4.0 m. Increase, an increase of 131.3%.
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YL: Investigation—editing and supervision; XD: writing, editing—data analysis and original drafts; XL: writing—editing and checking.
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Li, Y., Du, X. & Li, X. Analysis of Dynamic Response of Subway to Adjacent Tunnel with Different Clear Distances. Geotech Geol Eng 39, 5173–5181 (2021). https://doi.org/10.1007/s10706-021-01822-y
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DOI: https://doi.org/10.1007/s10706-021-01822-y