| 浅埋小净距隧道开挖顺序优化研究 |
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| 引用本文： | 吕栋. 浅埋小净距隧道开挖顺序优化研究[J]. 交通标准化, 2009, 0(13): 72-76 |
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| 作者姓名： | 吕栋 |
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| 作者单位： | 河北锐驰交通工程咨询有限公司; |
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| 摘 要： | 以某高速公路浅埋小净距隧道建设为工程背景，通过数值模拟的方法，对不同开挖顺序对空间围岩位移、塑性剪应变、应力的影响进行对比分析，可知“先开挖、支护一侧隧道，然后再开挖另一隧道内侧”是比较优化的施工方案，这可为类似隧道优化设计和施工提供科学依据。
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| 关 键 词： | 浅埋小净距隧道 开挖顺序 数值模拟 |
Optimum Sequence for Excavating the Shallow-buried Neighborhood Tunnel |
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| LU Dong. Optimum Sequence for Excavating the Shallow-buried Neighborhood Tunnel[J]. Communications Standardization, 2009, 0(13): 72-76 |
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| Authors: | LU Dong |
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| Affiliation: | Hebei Reach Traffic Engineering Consultants Co.;Ltd.;Shijiazhuang 050000;China |
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| Abstract: | A shallow-buried neighborhood expressway tunnel is selected as the engineering background. They are contrasted and analyzed that the distribution of displacement, plastic shear strain and stress in surrounding soil which are got by numerical simulation for different excavation sequences. The optimization excavation sequence is excavating the inboard soil of latter tunnel after one tunnel has been finished. It can provide scientific basis for design and construction of similar tunnels. |
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| Keywords: | shallow-buried neighborhood tunnel excavation sequence numerical simulation |
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