Tunnel lining commonly is curve wall, and the load is complex, so load effect at each section of tunnel lining is not easily obtained.
隧道衬砌通常是曲线壁，和负载是复杂的，所以加载在每个边的隧道衬砌的影响是不容易得到的。
Tunnel lining commonly is curve wall, and the load is complex, so load effect at each section of tunnel lining is not easily obtained.
隧道衬砌通常是曲线壁，和负载是复杂的，所以加载在每个边的隧道衬砌的影响是不容易得到的。
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