ISSN 2096-4498
CN 44-1745/U
Tunnel Construction ›› 2017, Vol. 37 ›› Issue (S2): 82-86.DOI: 10.3973/j.issn.2096-4498.2017.S2.012
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HU Jilei, LIU Huabei
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Abstract:
Adding gravelly soil around the shallowburied metro station has some positive effect on decreasing the uplift of the structure, but the method still can be improved. The antiuplift effect of tunnel structure by original design, that by Ushaped gravelly soil and that by improved gravelly soil are compared and analyzed by an elementfinite difference coupling method. The results show that the antiuplift effect of improved gravelly soil is better than that of Ushaped gravelly soil; more severe acceleration response of the structure would be induced the by improved gravelly soil; the antiuplifting mechanism of improved gravelly soil is restraining the accumulation of excess pore water pressure of soil and restricting flow deformation of liquefied soil around the metro station to reduce the uplift displacement of the structure; the performance of uplift control varies with different earthquake density.
Key words: metro station structure, earthquake, liquefactioninduced uplift, gravelly soil, numerical simulation
CLC Number:
U 45
HU Jilei, LIU Huabei. Numerical Experiment of Liquefactioninduced Uplift Response of Metro Station by Improved Gravelly Soil Method[J]. Tunnel Construction, 2017, 37(S2): 82-86.
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http://www.suidaojs.com/EN/Y2017/V37/IS2/82
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