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| 2020, Vol. 57(5): 243- DOI: | ||
| Safety Control Technology for the Newly Constructed Shield Tunnels Approaching Existing Metro Lines Underneath | ||
| (1 China Railway Southwest Research Institute Co. , Ltd. , Chengdu 611731；2 Chengdu Metro Operation Co., Ltd., Chengdu 610036) | ||
| Received null Revised null | ||
| Supporting info | ||
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