| 建筑物下大断面隧道施工方案及开挖模拟分析 |
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| 引用本文： | 庞继高.建筑物下大断面隧道施工方案及开挖模拟分析[J].城市轨道交通研究,2004,7(3):45-48. |
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| 作者姓名： | 庞继高 |
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| 作者单位： | 中铁十三局集团有限公司二公司,518083,深圳 |
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| 摘 要： | 针对南京地铁鼓楼站--玄武门站停车线段双洞隧道地表有建筑物、两洞小间距且其中一个为大断面隧道的特点,提出了相应的施工工法,并采用二维有限元理论分析,论证了工法的合理性.分析表明,大断面隧道双侧导坑的上台阶、核心土的上台阶及小断面隧道的上台阶等开挖引起的地面沉降量较大.
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| 关 键 词： | 隧道施工 大断面隧道 有限元分析 |
| 修稿时间： | 2004年1月9日 |
Construction Scheme of Large Span Tunnels under Building and the Calculation Analysis |
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| Pang Jigao Author's address Second Dep. of China Railway th Engineering Group,Shenzhen,China.Construction Scheme of Large Span Tunnels under Building and the Calculation Analysis[J].Urban Mass Transit,2004,7(3):45-48. |
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| Authors: | Pang Jigao Author's address Second Dep of China Railway th Engineering Group Shenzhen China |
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| Institution: | Pang Jigao Author's address Second Dep. of China Railway 13th Engineering Group,518083,Shenzhen,China |
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| Abstract: | This paper is an analysis based on the construction of the double-hole tunnels in Nanjing Metro,a section between the Drum-tower and Xuanwu Gate.The tunnels are dug under buildings on the ground,which made the space between two holes very narrow and one tunnel with a large span.The author discusses the construction method of the tunnels against difficult situation,and proves this method to be rational through 2D FEM analysis.This analysis,as the author argues,will guide the design and construction of tunnels with same background. |
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| Keywords: | tunnel project small space tunnels large span FEM |
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