| 新建隧道爆破震动对既有隧道影响的数值分析 |
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| 引用本文： | 冯仲仁,文曦.新建隧道爆破震动对既有隧道影响的数值分析[J].爆破,2008,25(4). |
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| 作者姓名： | 冯仲仁 文曦 |
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| 作者单位： | 武汉理工大学土木工程与建筑学院,武汉,430070;武汉理工大学土木工程与建筑学院,武汉,430070 |
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| 摘 要： | 新建复线隧道与既有隧道的净间距一般都较小,因此,复线隧道施工爆破对既有隧道会有较大的影响.采用MIDAS/GTS软件对既有隧道受邻近新建隧道爆破震动影响进行了研究.结果表明近距离爆破会对既有隧道衬砌安全性产生很大的影响,需采用相应的措施来减小爆破振动对既有隧道衬砌的扰动.最后提出了隧道爆破施工中减轻振动的几种措施.
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| 关 键 词： | 隧道工程 爆破分析 有限元 数值模拟 |
Numerical Simulation of Blasting Vibration from Excavation of a New Tunnel on Existed Tunnel |
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| FENG Zhong-ren,WEN Xi.Numerical Simulation of Blasting Vibration from Excavation of a New Tunnel on Existed Tunnel[J].Blasting,2008,25(4). |
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| Authors: | FENG Zhong-ren WEN Xi |
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| Affiliation: | FENG Zhong-ren,WEN Xi (School of Civil Engineering , Architecture,Wuhan University of Technology,Wuhan 430070,China) |
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| Abstract: | In general,as the distance between double line tunnel and existing tunnel is very small,excavating blast in double line tunnel will affect structure safety of existing tunnel.The influence of blasting vibration from excavation of a new tunnel on close-in existed tunnel is studied by use of midas/gts program.The results of study and analysis show that blasting near-by affect structure safety of existing tunnel lining.We must adopt corresponding measures to decreases excavating blast affect to existing tunnel... |
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| Keywords: | tunnel engineering blasting analysis finite element method numerical simulation |
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