地铁盾构区间岩溶处治施工技术

Subway Shield Zone Karst Treatment Construction Technology

地铁隧道以盾构施工为主,在岩溶发育地段施工存在较大的安全隐患,容易使盾构机下部土体不稳定而塌陷,导致突水、突泥和盾构机具陷落等事故,从而引发严重的安全事故,后续处理非常困难。在岩溶地区兴建地铁隧道工程尤其应进行专门的基础处理,本文介绍南宁地铁2号线玉洞—金象站盾构隧道溶洞处理实例并进行分析研究。

Subway tunnel construction in order to shield the main, there is a big security risk in karst area construction, easy to make the lower part of the shield machine of soil instability and collapse, causing sudden water, mud and shield machines sudden collapse and other accidents, giving rise to serious security incidents, follow-up treatment is very difficult.The construction of the subway tunnel project in the Karst region in particular, should be the basis for special treatment, this article describes Nanning Yu-dong Subway Line 2-Golden Elephant Cave Treatment instance Shield Tunnel station and analysis.