| 大跨径隧道双上侧壁导坑法施工技术 |
| |
| 引用本文： | 肖营,胡伦炜.大跨径隧道双上侧壁导坑法施工技术[J].施工技术,2011,40(7). |
| |
| 作者姓名： | 肖营 胡伦炜 |
| |
| 作者单位： | 深圳市建设(集团)有限公司,广东,深圳,518001 |
| |
| 摘 要： | 大跨径隧道双上侧壁导坑法是根据隧道软硬围岩相间的情况,将双侧壁导坑法与上下台阶法相结合的一种技术.以开挖断面的起拱线为界,将隧道横断面分为上下两部分,上部采取双侧壁导坑法施工,下部分左右幅先后开挖,适用于上部围岩较差、下部围岩较好的单向三车道及三车道以上隧道.详细介绍了洞身超前支护、洞身开挖、洞身初期支护与临时支护的施工方法与注意事项.工程应用结果表明,与传统的双侧壁导坑法相比,该方法安全可靠、灵活多变、经济社会效益明显.
|
| 关 键 词： | 大跨径隧道 双上侧壁导坑 软硬围岩 起拱线 |
Construction Technology of Two Upper Side-wall Pilot Tunnel Method for Large-span Tunnels |
| |
| Xiao Ying,Hu Lunwei.Construction Technology of Two Upper Side-wall Pilot Tunnel Method for Large-span Tunnels[J].Construction Technology,2011,40(7). |
| |
| Authors: | Xiao Ying Hu Lunwei |
| |
| Affiliation: | Xiao Ying,Hu Lunwei(Shenzhen Construction(Group) Co.,Ltd.,Shenzhen,Guangdong 518001,China) |
| |
| Abstract: | Based on the condition of weak and hard surrounding rock interphase,construction technology of two upper side-wall pilot tunnel is a new technology combined with both side heading method and benching tunneling construction method.The tunnel is divided into a upper part and a lower part with the springing line of excavation cross-section.The upper part is constructed with both side heading method,and the lower part is excavated in succession from left to right.This technology is suitable for one-way tunnel w... |
| |
| Keywords: | large-span tunnel two upper side-wall pilot tunnel weak and hard surrounding rock springing line |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
