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.
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。
The elastoplastic problem for circular pressured tunnel with lining is investigated.
研究含衬砌圆形压力隧洞的弹塑性问题。
The elastoplastic problem for circular pressured tunnel with lining is investigated.
研究含衬砌圆形压力隧洞的弹塑性问题。
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