浅埋暗挖地铁隧道穿越地裂缝带施工技术研究  

Research on Construction Technology of Shallow Buried Metro Tunnel Passing Through Ground Fissure Zone

作　　者：聂爱兮 曾赛梅 梁桥[2] NIE Ai-xi;ZENG Sai-mei;LIANG Qiao(First Highway Engineering Group CO.,Ltd.Beijing 100020,China;School of Architectural Engineering,Hunan Institute of Engineering,Xiangtan 411104,China)

机构地区：[1]中交一公局集团有限公司,北京100020 [2]湖南工程学院建筑工程学院,湘潭411104

出　　处：《湖南工程学院学报（自然科学版）》2021年第3期88-94,共7页Journal of Hunan Institute of Engineering(Natural Science Edition)

基　　金：国家自然科学基金资助项目(41272324);湖南省教育厅科研资助项目(18A189).

摘　　要：西安市灞桥区纺织城纺二路站~纺织城站区间地铁隧道工程,位于关中盆地中部地裂缝易开裂活跃地段,其地下水丰富,夹有钙质胶结层,因此需采用浅埋暗挖法施工.选取超前小导管预注浆加固地层、全断面注浆止水、CRD法和台阶法开挖的施工方案.注浆过程中调整优化注浆配合比,取得了良好的止水和加固效果,保证了隧道施工安全,实现了区间隧道的顺利贯通,可以为同类工程的施工提供借鉴和参考.The subway tunnel project between Textile City 2nd Road station and Textile City station in Baqiao District of Xi’an is located in the active section of ground fissure in the middle of Guanzhong Basin.With abundant grundwater and calcium-cement layer,the shallow buried tunneling method is adopted.The con-struction scheme of pre-grouting with small conduit in advance,full face grouting water stop,CRD method and step method for excavation is selected.In the process of grouting.The grouting mix proportion is adjusted and optimized to achieve good water stop and reinforcement effect.It can ensure the safety of tunnel con-struction,and realize the smooth connection of interval tunnel,which can provide reference for the construc-tion of similar projects.

关 键 词：地裂缝 浅埋暗挖法 CRD法 全断面注浆止水 注浆配合比 

分 类 号：U455[建筑科学—桥梁与隧道工程]