| 铜锣山隧道新型洞门结构计算 |
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| 引用本文： | 李强,王明年,林国进.铜锣山隧道新型洞门结构计算[J].公路,2005(2):160-165. |
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| 作者姓名： | 李强 王明年 林国进 |
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| 作者单位： | 中交第一公路规划勘察设计研究院,西安市,710075;西南交通大学地下工程系,成都市,610031;西南交通大学地下工程系,成都市,610031;四川省公路勘察设计研究院,成都市,610041 |
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| 摘 要： | 结合有限元分析方法,对铜锣山隧道邻水端新型洞门结构进行了三维数值模拟分析,研究结果表明: 洞门衬砌结构只需构造配筋,即可满足要求,并进行了断面钢筋布置;提出了基底最小承载力不应小于0.5MPa, 同时也表明,基底应力全部为压应力,洞门结构整体是稳定的。根据计算结果,提出了相应的施工注意事项。
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| 关 键 词： | 新型洞门 三维数值分析 应力分布 基底承载力 |
| 文章编号： | 0451-0712(2005)02-0160-06 |
| 修稿时间： | 2004年8月16日 |
Structure Calculation of Late-Model Portal of Tongluo Mountain Tunnel |
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| LI Qiang,WANG Ming-nian,LIN Guo-jing.Structure Calculation of Late-Model Portal of Tongluo Mountain Tunnel[J].Highway,2005(2):160-165. |
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| Authors: | LI Qiang WANG Ming-nian LIN Guo-jing |
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| Institution: | LI Qiang 1,2,WANG Ming-nian 2 LIN Guo-jing 3 |
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| Abstract: | Combined with finite element method (FEM), the stress mechanics of late-model portal structure by 3-D numerical analysis are simulatingly analysed. The results of the study show that the portal structure only needs constructional steel bars, and the layout of steel bars is designed on tunnel cross-section; and that the lowest bearing capacity of the foundation should not be less than 0.5 MPa is also suggested. The results also indicate that the foundation base stress is compressive stress and the portal structure is stable. According to the calculating result, the corresponding construction measures are put forward. |
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| Keywords: | late-model portal 3-D numerical analysis stress distribution foundation base bearing capacity |
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