| 李帅营,张庆文,朱东.不同支护作用下的隧道数值模拟研究[J].唐山学院学报,2025,38(6):36-43 |
| 不同支护作用下的隧道数值模拟研究 |
| Numerical Simulation Research of Tunnels Under Different Support |
| 投稿时间：2024-11-12 |
| DOI：10.16160/j.cnki.tsxyxb.2025.06.007 |
| 中文关键词: 隧道 支护方法 数值模拟 稳定性 衬砌 |
| 英文关键词: tunnel support methods numerical simulation stability lining optimization |
| 基金项目: |
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| 摘要点击次数: 412 |
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| 中文摘要: |
| 运用数值模拟技术分析了4种隧道支护方法对隧道稳定性的影响,包括仅开挖隧道、仅施作锚杆、仅施作喷射混凝土层以及同时施作锚杆和喷射混凝土层;对比了4种方法在塑性区分布、Z方向位移和应力方面的差异,且根据对比结果对4种不同厚度的衬砌进行了筛选。结果表明:单独使用锚杆对提高隧道稳定性效果有限,而喷射混凝土层有效减小了塑性区、降低了位移并优化了应力分布,从而显著提升了隧道稳定性,厚25 cm的衬砌效果最佳。 |
| 英文摘要: |
| Numerical simulation is used to analyze the effects of four tunnel support methods on tunnel stability, including tunnel excavation alone, anchor bolt alone, shotcrete alone, and both anchor bolts and shotcrete at the same time. Differences in plastic zone distribution, Z-direction displacement and stress are compared, and lining thickness optimization is conducted accordingly. The results show that anchor bolt alone has limited stabilizing effects on the stability of the tunnel, while shotcrete layer has significantly improved the stability, reduced plastic zones, lowered displacement, and optimized stress distribution. By comparing the displacement, stress, plastic zone, and together with construction costs,a lining thickness of 25 cm is concluded to be optimal. |
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