...æ1Õ 关键词 建筑材料，喷混凝土衬砌，结构可靠度，位移方法 [gap=852]Key words architectural material，shotcrete lining，structure reliability，displacement-based method ...
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掘进过程中的支护采用湿喷混凝土，3米厚的基底和穹拱衬砌采用浇注混凝土。
Wet sprayed concrete for supporting purposes during the drive, in situ concrete for the up to 3 m thick Base and for lining the vault.
对隧洞围岩条件良好洞段，论证取消隧洞原圆形钢筋混凝土衬砌，选定马蹄形锚喷断面作为最终优化断面形式。
For tunnel sections with good surrounding rocks, the U-shaped rock-bolted section is selected as a final optimized section instead of the original circular reinforcement concrete lining section.
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