试析前撑注浆钢管自稳式支撑体系在建筑基坑中的应用  

Analysis on the application of self-stabilizing support system with front support grouting steel pipe in building foundation pit

作　　者：张飞 

机构地区：[1]中骏集团控股(上海)有限公司

出　　处：《住宅产业》2020年第6期51-56,共6页Housing Industry

摘　　要：前撑注浆钢管自稳式支撑体系属基坑围护结构设计中目前较为常用的一种型式,其在基坑安全、造价和工期等方面综合优势明显,使其在长三角软土地基基坑中的应用越来越普遍。本文以上海市闵行区某项目基坑围护设计和实施的具体案例为基础,对前期设计选型、中期实施过程和后期运行效果进行简要分析,阐述其既满足了基坑自身安全和环境保护要求,又取得了基坑围护在经济性和加快施工方面的良好综合效果,以期对上海地区乃至长三角类似项目基坑围护设计施工提供参考。The self-stabilizing support system with front support grouting steel pipe is a common type in the design of foundation pit enclosure structure,which has obvious comprehensive advantages in the aspects of safety,cost and construction periodof foundation pit,therefore it is more and more widely used in the soft soil foundation pit of Yangtze River Delta.Based on the specific case of foundation pit enclosure design and implementation in Minhang District of Shanghai,this paper briefly analyzes the early design selection,mid-term implementation process and later operation effect,and expounds that the system not only meets the requirements of foundation pit self-safety and environmental protection,but also achieves good comprehensive effect in economy and construction acceleration of foundation pit support,whichcan provide a referencefor similarprojects of foundation pit enclosuredesign and constructionin Shanghai and the Yangtze River Delta at large.

关 键 词：基坑围护 注浆钢管 自稳式支撑体系 软土地基基坑 水平内支撑 斜抛撑 斜撑钢管 

分 类 号：TU753[建筑科学—建筑技术科学]