| 软流塑状Ⅵ级围岩浅埋隧道施工技术 |
| |
| 引用本文： | 解方亮. 软流塑状Ⅵ级围岩浅埋隧道施工技术[J]. 隧道建设, 2010, 30(2): 186-189 |
| |
| 作者姓名： | 解方亮 |
| |
| 作者单位： | 中铁十九局集团兰渝铁路项目部, 甘肃 定西743001 |
| |
| 摘 要： | 在兰渝铁路南坪隧道出口段施工中遇到浅埋偏压现象，围岩为软流塑状Ⅵ级围岩。采用地表管桩控制软流塑状围岩的溜塌；采用大拱脚及加强支护措施来控制变形坍塌；在暗挖施工中经过施工方案比选，采用三台阶预留核心土法；并在严密配套的洞内外监测技术的指导下，安全顺利的通过了浅埋偏压Ⅵ级围岩地段。
|
| 关 键 词： | 软流塑状围岩 浅埋隧道 管桩 加固技术 |
| 收稿时间： | 2010-01-04 |
| 修稿时间： | 2010-03-11 |
Construction Technology for Shallow-buried Tunnels in Grade VI Plastic-flow Ground |
| |
| XIE Fangliang. Construction Technology for Shallow-buried Tunnels in Grade VI Plastic-flow Ground[J]. Tunnel Construction, 2010, 30(2): 186-189 |
| |
| Authors: | XIE Fangliang |
| |
| Affiliation: | Lanzhou Chongqing Railway Project Headquarters of China Railway 19th
Bureau Group Co., Ltd., Dingxi 743001, Gansu, China |
| |
| Abstract: | The exit portal section of Nanping tunnel on Lanzhou-Chongqing railway is located in Grade VI plastic-flow ground with unsymmetrical pressure.Pipe plies are installed from the ground surface to control the collapse of the plastic-flow ground;enlarged arch feet and strengthened reinforcement are adopted to control deformation and collapse;3-bench excavation method with core soil is adopted on basis of construction scheme analysis and strict monitoring is performed inside and outside the tunnel.In the end,the... |
| |
| Keywords: | plastic-flow strata tunnel under shallow cover pipe pile consolidation technology |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《隧道建设》浏览原始摘要信息 |
|
点击此处可从《隧道建设》下载免费的PDF全文 |
