深基坑大长边单侧支护半逆做法施工技术  

Construction Technology of the Semi-Reverse Method Applied on the Unilateral Support Structure of the Long Side of the Deep Foundation Pit

作　　者：陈飞飞 CHEN Feifei(Beijing Municipal Third Construction Engineering Co.,Ltd.,Beijing,100062 China)

机构地区：[1]北京市市政三建设工程有限责任公司,北京100062

出　　处：《科技资讯》2023年第7期82-85,114,共5页Science & Technology Information

摘　　要：以东台站站前广场及综合客运枢纽配套工程的深基坑支护结构为研究对象,对深基坑大长边支护单侧的设计、施工等方面进行了一定的探索和总结,并从支护结构顶部水平位移、支护结构顶部竖向位移、深层水平位移、周边建筑及周边地表竖向位移4个方面对支护结构的稳定性进行了模型计算和监控量测。结果表明:使用深基坑大长边单侧支护半逆作法施工技术可以有效地控制基坑支护结构及周边建筑物的竖向位移,可为类似的工程设计和施工提供参考。Taking the support structure of the deep foundation pit in the station square and the auxiliary project of the integrated passenger transportation hub of Dongtai Station as the research object,this paper explores and summarizes the design and construction of the unilateral support structure of the long side of the deep foundation pit,and calculates and measures the stability of the support structure from four aspects:the horizontal displacement of the top of the support structure,the vertical displacement of the top of the support structure,the horizontal displacement of the deep layer,and the vertical displacement of surrounding buildings and surrounding surfaces.The results show that the construction technology of the semi-reverse method used in the unilateral support structure of the long side of the deep foundation pit can effectively control the vertical displacement of the support structure of the foundation pit and surrounding buildings,which can provide reference for similar engineering design and construction.

关 键 词：深基坑 站前广场 单边支护 半逆作法 

分 类 号：TU79[建筑科学—建筑技术科学]