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。
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