地下结构外墙后浇带的预封闭结构及施工技术  

PRE-ENCL OSED STRUCTURE AND CONSTRUCTION TECHNOLOGY OF POST-POURING BELT FOR EXTERIOR WALL OF UNDERGROUND STRUCTURE

作　　者：杨长虹 秦小锋 Yang Chang-hong;Qin Xiao-feng(CCCC(Guangzhou)Construction Co.,Ltd.,510000,Guangzhou,China;Guangdong Provincial Lean Construction Engineering Technology Research Center for Municipal Rail Transit,510000,Guangzhou,China)

机构地区：[1]中交(广州)建设有限公司,广州510000 [2]广东省市政轨道交通精益建造工程技术研究中心,广州510000

出　　处：《建筑技术》2025年第5期575-577,共3页Architecture Technology

摘　　要：研究在分析地下结构外墙后浇带设置对施工、结构防水不利影响的基础上,提出地下结构外墙后浇带预封闭结构需要同时满足能够承担地下结构外墙回填后的水土压力荷载和具备较好防水能力的两个功能要求。在调研国内外学者研究成果基础上,设计了预制钢筋混凝土板+接缝遇水膨胀止水条的防水的结构,验算了结构的可靠性,并应用于横沥地下空间项目,取得一定成效,以供讨论、参照。On the basis of analyzing the adverse effects of the setting of the post-pouring belt on the construction and structural waterproofing of the exterior wall of the underground structure,this paper proposes that the pre-closed structure of the post-pouring zone of the external wall of the underground structure needs to meet the two functional requirements of being able to bear the water and soil pressure load after the backfilling of the external wall of the underground structure and having good waterproof ability.On the basis of the research results of scholars at home and abroad,the waterproof structure of prefabricated reinforced concrete slab+joint expansion waterstop strip was designed,the reliability of the structure was checked,and it was applied to the Hengli underground space project,and achieved certain results for discussion and reference in the industry.

关 键 词：地下结构 外墙 后浇带 预封闭 防水 

分 类 号：TU74[建筑科学—建筑技术科学]