| 地铁浅埋群洞施工工序与关键技术 |
| |
| 引用本文： | 杨宏射.地铁浅埋群洞施工工序与关键技术[J].城市轨道交通研究,2004,7(1):70-72. |
| |
| 作者姓名： | 杨宏射 |
| |
| 作者单位： | 中隧集团二处有限公司烟台项目部,264000,烟台 |
| |
| 摘 要： | 广州地铁2号线越秀公园站车站中部为暗挖分离式、假岛武站台,两端为明挖3层结构,站厅层和站台层采用斜通道相接,结构型式独特.利用明挖段作为暗挖的施工作业面,施工的转换复杂、工序多.暗挖隧道为浅埋、大跨、动载以及在软弱地层条件下修建的群洞,施工来件困难.提出了群洞施工的合理工序.施工的关键技术是减小对夹持土体的扰动以及对土体的加固,可采取拱部长管棚超前支护、中间土体进行注浆加固、设置锁脚锚杆或加大拱脚喷混凝土厚度等方法.
|
| 关 键 词： | 地铁 浅埋隧道 暗挖 "中隔壁加台阶"工法 管棚支护 超前支护 |
| 修稿时间： | 2003年5月26日 |
The Working Procedure and Key Technology in Construction of Metro Tunnel Groups |
| |
| Yang Hongshe Item Branch of nd Co.,Ltd.,China Railway Tunnel Groups,Yantai,China.The Working Procedure and Key Technology in Construction of Metro Tunnel Groups[J].Urban Mass Transit,2004,7(1):70-72. |
| |
| Authors: | Yang Hongshe Item Branch of nd Co Ltd China Railway Tunnel Groups Yantai China |
| |
| Institution: | Yang Hongshe Item Branch of 2 nd Co.,Ltd.,China Railway Tunnel Groups,26400,Yantai,China |
| |
| Abstract: | In the construction of Yuexiu Park Station of Guangzhou Metro Line 2,the separate subsurface excavation technique is adopted,the middle platform takes a false island structure with both ends open cut,and the station hall is accessible to the platform layer through an inclined path.Because of the complicated working procedure,this paper argues that the key technology in the subsurface excavation is to avoid disturbing the tunnel body and to strengthen the platform layer by using pipe shed support and advance support. |
| |
| Keywords: | |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
