Abstract
This paper investigated an optimal strategy of constructing the tunnel with double-arch section, which the one-cave benching tunneling construction and twin side heading construction were replaced by the center drift combining CRD method and the center drift combining twin side heading method. And the proposed measure was applied to construct the back-turning section of the Clover Park Station which was located in metro line 2 Nanjing, China. The economy and practicality of the proposed method was demonstrated by the application to this practical tunnel
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