| 隧道顶部溶洞对围岩稳定性的影响分析 |
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| 引用本文： | 史世雍,梅世龙,杨志刚.隧道顶部溶洞对围岩稳定性的影响分析[J].地下空间与工程学报,2005,1(5):698-703. |
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| 作者姓名： | 史世雍 梅世龙 杨志刚 |
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| 作者单位： | [1]同济大学地下建筑与工程系,上海220092 [2]贵州省公路工程总公司,贵阳550008 |
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| 基金项目： | 交通部西部交通建设科技项目 |
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| 摘 要： | 结合夏家庙隧道实际工程,运用ANSYS有限元软件研究了隧道顶部不同大小、不同距离的溶洞分布对隧道围岩稳定性的影响,并与现场实测数据进行对比分析.研究结果表明：隧道顶部溶洞大小和距离的变化对隧道顶底板主应力将产生明显的影响,对隧道围岩拱顶下沉亦有明显影响,数值模拟结果与现场监测结果基本吻合.
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| 关 键 词： | 溶洞 隧道 围岩稳定性 现场监测 |
| 文章编号： | 1673-0836(2005)05-0698-05 |
| 修稿时间： | 2005年3月6日 |
Research on the Influence of Karst Cave in the Roof of Tunnel on Stability of Surrounding Rock |
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| SHI Shi-yong,MEI Shi-long,YANG Zhi-gang.Research on the Influence of Karst Cave in the Roof of Tunnel on Stability of Surrounding Rock[J].Chinese Journal of Underground Space and Engineering,2005,1(5):698-703. |
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| Authors: | SHI Shi-yong MEI Shi-long YANG Zhi-gang |
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| Affiliation: | SHI Shi-yong~1,MEI Shi-long~2,YANG Zhi-gang~2 |
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| Abstract: | Based on the Xiajiamiao tunnel real engineering,a numerical analysis concerning the influence of the change of size and distance of karst caves in the roof of tunnel on stability of the surrounding rock masses is carried out through the ANSYS software system,the result is compared to locale monitor data, The findings indicate that the principal stress of adjoining rock will be influenced obviously and.the settlement of arch top will be effected distinctly by the Karst cave in the roof.The result of numerical simulation is in agreement with in-situ monitoring data basically. |
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| Keywords: | karst cave tunnel stability of surrounding rock in-situ monitoring |
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