湿陷性黄土地区运营地铁盾构隧道加固技术

Reinforcement technology of in-service subway shield tunnel in collapsible loose region

结合南门立交工程的实际情况,介绍了该工程地铁加固中降水井井位定位与降水技术控制措施,并从钻孔灌注桩施工、土方开挖、土体注浆加固等方面,阐述了土地隧道的加固技术,确保了地铁盾构隧道的安全性。

Combining with actual Nanmen overpass engineering conditions,the paper introduces dewatering well orientating and dewatering technology control measures in the subway reinforcement,and describes land tunnel reinforcement technologies from aspects of bored pile construction,earthwork excavation and soil grouting reinforcement,with a view to guarantee the subway shield tunnel safe.