| 隧道穿越活动断裂区地下结构抗震性能研究 |
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| 引用本文： | 林家桢.隧道穿越活动断裂区地下结构抗震性能研究[J].路基工程,2017,0(1):85-87. |
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| 作者姓名： | 林家桢 |
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| 作者单位： | 铁道第三勘察设计院集团有限公司, 天津 300251 |
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| 摘 要： | 以乌鲁木齐市轨道交通1号线为工程依托，运用有限元计算软件模拟有减震缝隧道衬砌与无减震缝隧道衬砌，对两种工况下衬砌沿隧道轴线方向位移、衬砌沿主震方向位移及衬砌最大剪力部位进行对比分析，研究了隧道结构环向减震缝对衬砌抗震性能影响规律，得出在活动断层区隧道设置减震缝能够有效地对隧道结构起到减震作用。
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| 关 键 词： | 活动断层 数值模拟 对比分析 动力响应 减震缝 |
| 收稿时间： | 2019-11-11 |
Research on Anti-seismic Property of Subsurface Structure in Tunnel-crossing Active Fault Area |
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| Abstract: | Two conditions such as the tunnels with and without shock absorption lining is simulated for Rail Transit Line 1 of Urumqi and using the finite element software, contrastive analysis is performed for the displacement of the lining in principal earthquake direction and the lining part with maximum shearing force to research the rule on impact of circumferential shock absorption joint of tunnel structure on the anti-seismic property of the lining. The result shows that arrangement of the shock absorption joint in the tunnel-crossing active fault area has shock absorption effect on the tunnel structure. |
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