摘要
在城市地铁施工中 ,由于隧道埋深相对较浅 ,且经常要穿越工程地质复杂、水文地质极差、围岩级别较低的地段 ,若采用矿山法施工 ,通常要采用大管棚、超前小导管、水平冻结……等辅助措施。文章结合广州地铁二号线纪 -越区间隧道实际施工情况 ,介绍了另外一种辅助工法———水平袖阀管深孔注浆 ,并将它与同时采用的超前小导管注浆进行多方面比较 。
During the construction of shallow-buried metro, complex engineering geology, severe hydrology and weak surrounding rock will be encountered, if excavation by mining method is adopted, some special measures should be used such as large piping roof, advanced pipe grouting, horizontal frozen method, and so on. This paper introduces a new technique-deep hole grouting with horizontal sheathed pipes which was adopted in the construction of the running tunnel from Memorial Hall to Yuexiushan on the No.2 line of Guangzhou metro. As compared with the advanced pipe grouting method adopted simultaneously, the conclusion is that this technique is more superior to the advanced pipe grouting method and is more promising.
出处
《现代隧道技术》
EI
2003年第4期46-51,共6页
Modern Tunnelling Technology
