| 小净距隧道群掌子面间距数值分析研究 |
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| 引用本文： | 吴贲,杨德升,杨小礼.小净距隧道群掌子面间距数值分析研究[J].矿业工程研究,2011,26(3):78-80. |
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| 作者姓名： | 吴贲 杨德升 杨小礼 |
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| 作者单位： | 中南大学土木建筑学院,湖南长沙,410075 |
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| 基金项目： | 中国中铁四局科技项目资助项目 |
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| 摘 要： | 当多隧道并行且属于超小净距隧道群时,如何控制掌子面距离成为保证施工安全同时不耽误工期的一项内容.研究结果表明,掌子面之间距离越大,各隧道特别是处于最后施工并位于中间位置的二号隧道位移、应力逐渐减小,但当掌子面距离增大至一定程度时,变化就很小.综合分析,掌子面距离控制在2倍洞径较为合理.
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| 关 键 词： | 小净距 三线并行 掌子面距离 优化分析 |
Excavation of the tunnel face distance in small clear distance group tunnels |
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| WU Ben,YANG Desheng,YANG Xiaoli.Excavation of the tunnel face distance in small clear distance group tunnels[J].Mineral Engineeering Reseach,2011,26(3):78-80. |
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| Authors: | WU Ben YANG Desheng YANG Xiaoli |
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| Affiliation: | (College of Civil and Architectural Engineering,Central South University,Changsha 410075,China) |
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| Abstract: | When we face the three tunnels or more than three tunnels with small interval tunnel, how to control the distance of the tunnel face becomes a content to ensure the safety of construction and time. Research results show ： as the distances of the tunnel face increase, the displacement and the stress of the tunnel reduce especially in tunnel number 2 which constructs in the middle place later than other tunnels, but when the distance of the tunnel face increases to a certain degree, changes become smaller. Above all, the distance of the tunnel face set as twice tunnel interval will be reasonable. |
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| Keywords: | small clear distance three lines tunnel face distance optimization analysis |
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