Secondary lining of inverted arch 反拱二次衬砌 ; 二次衬砌仰拱
inverted-arch 反底拱
inverted-arch floor 倒拱底板
The loading ratio is 40% and 60% respectively for the initial supports and secondary linings. The stress of the secondary lining is pressure stress,which is the largest on the upper arch loin and is smaller on the inverted arch.
在标准断面地铁隧道中左、右线墙脚位置初期支护与围岩之间接触压力较大,表明这两位置承受了大部分垂直压力;初期支护与二次衬砌承受的荷载比例为40%和60%;二次衬砌混凝土基本受压,拱腰及以上位置应力较大,仰拱处应力较小。
参考来源 - 黄土地区浅埋暗挖地铁隧道衬砌受力分析·2,447,543篇论文数据，部分数据来源于NoteExpress
以上来源于: WordNet
According to the final results of analysis, a reasonable excavation length of inverted arch in one step was put forward and applied to the construction of multi-arch tunnel in loess.
最后提出了最佳的黄土仰拱一次性开挖长度，并应用于黄土连拱隧道的施工。
According to the special structure of precast block of inverted arch for TBM construction tunnel, the dynamic construction state is modeled by FEM with surrounding rock - structure calculating model.
针对TBM施工隧道仰拱预制块的特殊结构，采用围岩-结构模式，进行了模拟施工动态的受力影响计算分析。
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