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| CD法开挖小净距公路隧道的优化研究 | |
| 引用本文： | 林尔姬,肖翔,李树鹏.CD法开挖小净距公路隧道的优化研究[J].交通科技,2010(1):54-57. |
| 作者姓名： | 林尔姬 肖翔 李树鹏 |
| 作者单位： | 1. 广州地铁设计研究院有限公司,广州,510010 2. 武汉铁路局襄樊工程建设指挥部,襄樊,441003 3. 中铁第四勘察设计院集团有限公司,武汉,430063 |
| 摘 要： | 采用CD法对浅埋小净距公路隧道在不同开挖顺序下进行施工力学数值模拟。通过对不同开挖顺序时的围岩位移和应力进行分析和比较,数值结果表明:在采用CD法施工时,不同的开挖方式最终位移和应力相差不大。综合考虑开挖过程中围岩应力和位移可知,采用先封闭先行隧道,再开挖后行隧道远离先行隧道侧的开挖方式较为适宜。 |
| 关 键 词： | CD法 开挖方案 小净距隧道 数值模拟 |
Optimizstion Research on Small Spacing Tunnel Excavation Scheme by CD Method |
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| Lin Erji,Xiao Xiang,Li Shupeng.Optimizstion Research on Small Spacing Tunnel Excavation Scheme by CD Method[J].Transportation Science & Technology,2010(1):54-57. | |
| Authors: | Lin Erji Xiao Xiang Li Shupeng |
| Institution: | Lin Erji1,Xiao Xiang2,Li Shupeng3(1.Guang Zhou Metro Design &Research Institute Co.,Ltd,Guangzhou 510010,China,2.Wuhan Railway Bureau &Xiangfan Construction Headquarters,Xiangfan 441003,3.China Railway Siyuan Survey , Design Group Co.,Wuhan 430063,China) |
| Abstract: | The numerical simulation of construction sequence was studied for shallow embedded tunnels by CD method.The displacement and stress of surrounding rock were analyzed and compared for different excavating sequences.The results show that the final stress and displacement of surrounding rock is close to each other.The best excavating sequences is enclosing the tunnel first excavated,then excavating the second tunnel side which away from first tunnel. |
| Keywords: | CD method excavation scheme small spacing tunnel numerical simulation |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |