| 浅埋大跨公路隧道施工技术 |
| |
| 引用本文： | 王海珍,孙星亮.浅埋大跨公路隧道施工技术[J].土工基础,2007,21(5):19-20,23. |
| |
| 作者姓名： | 王海珍 孙星亮 |
| |
| 作者单位： | 1. 石家庄铁路职业技术学院土木系,石家庄,050041;上海交通大学船舶与建筑学院,上海,204453
2. 石家庄铁道学院土木分院,石家庄,050043 |
| |
| 摘 要： | 某隧道最大开挖跨度达16.4 m,高跨比仅有0.57,洞口段埋深较浅,属典型的大跨公路隧道。根据大跨扁平隧道的受力和变形特点,在施工过程中采用小导管超前支护加固围岩,CD工法分块开挖并及时进行支护,同时进行拱顶沉降监测,保证了施工安全。
|
| 关 键 词： | 浅埋大跨隧道 超前支护 施工技术 |
| 文章编号： | 1004-3152(2007)05-0019-02 |
| 修稿时间： | 2006年6月26日 |
Construction Technique of Large Span Highway Tunnel with Low Depth |
| |
| WANG Hai zhen,SUN Xing liang.Construction Technique of Large Span Highway Tunnel with Low Depth[J].Soie Engineering and Foundation,2007,21(5):19-20,23. |
| |
| Authors: | WANG Hai zhen SUN Xing liang |
| |
| Abstract: | A highway tunnel,the excavation width up to 16.4m,the ratio of height to width as 0.57 and the low-depth portal sections can be regarded as a typical highway tunnel with large span and low depth.According to the mechanical and deformational properties,technical measures,such as small-pilot-steel-pipe pre-support before excavation,CD-excavation method and field measuring at typical cross section after excavation are adopted to ensure the security of construction. |
| |
| Keywords: | low depth and large span tunnel pre-support construction technique |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
