... 上覆大气 overlying atmosphere 上覆岩层负荷 overburden load 上覆岩层重量 overburden weight ...
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The calculation of structural load on the lining of tunnel with shallow overburden shows that the load on composite lining will be shared by primary support and secondary lining.
隧道衬砌在浅埋段的结构荷载计算表明，复合式衬砌中的初期支护和二次衬砌一般要共同承担荷载。
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