| 南京纬三路大直径越江盾构隧道冻结法出洞方案研究 |
| |
| 引用本文： | 魏龙海,郭小红,乔春江,史世波.南京纬三路大直径越江盾构隧道冻结法出洞方案研究[J].现代隧道技术,2011,48(3):80-86. |
| |
| 作者姓名： | 魏龙海 郭小红 乔春江 史世波 |
| |
| 作者单位： | 中交第二公路勘察设计研究院有限公司,武汉,430056 |
| |
| 摘 要： | 南京纬三路过江通道在江中段采用盾构法修建,其内设上下层双向四车道,直径为14.5 m.该隧道江北盾构出洞时主要穿越淤泥质粘土,土体含水量大,承载力低,若采用普通加固方式很难保证盾构出洞破壁时土体的稳定和有效隔水,设计采用人工地层冻结加固技术.结合现场实际情况,利用数值方法,就冻结施工时土体冻胀效应对地下连续墙安全性的影...
|
| 关 键 词： | 越江隧道 大直径盾构 盾构出洞 冻结法 数值模拟 |
Study on Freezing Method Applied for Large Diameter River-crossing Shield Tunnel in Nanjing City |
| |
| Wei Longhai,Guo Xiaohong,Qiao Chunjiang,Shi Shibo.Study on Freezing Method Applied for Large Diameter River-crossing Shield Tunnel in Nanjing City[J].Modern Tunnelling Technology,2011,48(3):80-86. |
| |
| Authors: | Wei Longhai Guo Xiaohong Qiao Chunjiang Shi Shibo |
| |
| Institution: | Wei Longhai Guo Xiaohong Qiao Chunjiang Shi Shibo(CCCC Second Highway Consultants Co.Ltd,Wuhan 430056) |
| |
| Abstract: | The river-crossing passage through Weisan Road of Nanjing will be built by shield tunneling,with two storeys,two-way four lanes and 14.5m diameter.The north exit approach mainly passes through muddy silt with rich water and low bearing capacity,and it is difficult to ensure the stability of soil and effective waterproofing by ordinary consolidation method.So it was designed to adopt artificial ground freezing.With the help of numerical method incorporating the site conditions,the effect of soil frost swelli... |
| |
| Keywords: | River-crossing tunnel Large diameter shield shield breakthrough Freezing method Numerical simulation |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
