Abstract：The collapse vibration performance laws of city viaduct to metro tunnel were obtained by using ANSYS/LS-DYNA software. The calculation model of collapse bridge impact to the underground tunnel of the city was established. Dynamic response of metro tunnel including three-direction vibration velocity and stress process of typical units was also obtained by comparison different conditions. The results show that as a main form of composite protective structure consists of Steel Plate-Rubber Tires system can make maximum of metro tunnel vibration velocity, compressive stress and tensile stress were decreased by 98.7%、95.6% and 94.4% compared with the absence of protective measures. It has shown excellent agreement between measured data and simulation results. Metro tunnel borne vibration speed is lower than the administration proposed safety threshold requirement and the design of comprehensive protection system achieved the expected result.
钟明寿1，龙源1，刘影1，路亮2，刘健峰1，纪冲1. 城市高架桥塌落冲击地铁隧道结构的动态响应及防护技术[J]. 振动与冲击, 2017, 36(16): 11-17.
ZHONG Ming-shou1, LONG Yuan1, LIU Ying1, LU Liang2, LIU Jian-feng1, JI Chong1. Dynamic response and protection technology research on metro tunnel under collapse vibration of city viaduct. JOURNAL OF VIBRATION AND SHOCK, 2017, 36(16): 11-17.
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