地铁深基坑下穿高铁施工技术.pdf

·隧道／地下工程· 地铁深基坑下穿高铁施工技术 陈宝军 (中铁二十一局集团第三工程有限公司 陕西咸阳712000) 摘要以西安地铁三号线下穿郑西高铁施工为例，详细介绍深基坑下穿既有高速铁路施工技术措施和施工组织 安排，重点对高铁防护方案和施工过程中的监控量测予以总结。由于前期防护措施到位，施工过程组织得力，不仅 顺利完成地铁结构施工，又保证了既有高铁线路的运行安全，可为类似工程提供经验。 关键词地铁深基坑下穿高铁监控量测 中图分类号U231．3文献标识码B 文章编号1009—4539(2014)07—0091—04 Constructionfor FoundationPitUnder Rail Technology SubwayDeep High-speed ChenBaoJun 21”Bureau (ChinaRailway Group 712000，China) Co．Ltd．，Xianyang AbstractThis Xi’anmetrolinethreein Xi Railconstructionasan Hish-speed paper，taking Zheng example，introduces the foundationunder constructionandconstruction withfocusOn pit high-speedrailway technology organization deep existing thesummarizationofthe and of rail schemeandconstruction key measuringmonitoringhigh-speedprotection process．The measuresinconstructionandeffective not ensuretheSuccessful well·-preparedprotective process organizationonly comple·- tion thesafe of ofthe also the rail Can subwayconstruction，but hish-speedline，which experi— operationexisting provide enceforsimilar engineering． words foundationof under andmeasurement Key deep pit subway；CroSShish-speedrail；monitoring 围护桩间采用鄙@200mm钢筋网喷射砼，桩顶设宽 1 工程概况 mmx800