Failure mechanism of the deep-buried metro tunnel in mixed strata: Physical model test and numerical investigation

Jutao Qiu,Xiaojun Zhou,Yusheng Shen,Xi Zhang, Bingxin Yu, Yang Luo

Tunnelling and Underground Space Technology（2023）

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摘要

•Reveal soil settlement with quartz sand.•The maximum allowable buried depth of the lining before damage is 150 m.•Tunnel end has the most significant convergence.•Severe damage occurs on the left part of the lining.

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关键词

metro tunnel,mixed strata,numerical investigation,deep-buried

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