摘要
以北京地铁16号线苏州街站为工程背景,介绍了PBA工法车站导洞有限空间内采用反循环工艺在富水卵石地层中机械成孔过程中发生塌孔后的应急处理及后处理措施,为类似工程提供借鉴经验。
Taking the Suzhoujie Station of Beijing Metro Line 16 as project background,this paper introduces the emergency treatment and post-treatment measures after hole-collapsing while making holes with machine in water-rich cobble stratum by reverse circulation technology within limited space at the station pit excavated by PBA method,which can serve as a reference for similar projects.
出处
《铁道建筑技术》
2015年第5期79-83,共5页
Railway Construction Technology
基金
中铁十四局集团公司技术开发计划项目(KJ2013-06)
关键词
PBA工法
反循环工艺
塌孔
应急处理
PBA method
reverse circulation technology
hole-collapsing
emergency treatment
