深基坑支护及土方开挖施工关键技术分析——以某商业广场为例

深基坑工程具有工程体量大、建造工期紧、安全储备低和不确定性高等特点,工程事故屡有发生,不仅造成经济损失、工期延误,而且还会引起不良社会影响。为顺利完成某商业广场的工程建造任务,在对施工现场及周边环境进行详细调研和勘测的基础上,对工程施工深基坑支护和土方开挖的关键施工技术进行充分研究与分析。结合该项目的工程地质、水文地质及建筑使用的功能和要求,制定深基坑支护及土方开挖关键施工技术,为指导同类工程施工提供经验借鉴。

Deep foundation pit engineering has the characteristics of large engineering volume,tight construction period,low safety reserve,high uncertainty and so on.Engineering accidents occur frequently,which not only cause economic losses and delay,but also cause adverse social impact.In order to successfully complete the construction task of a commercial plaza,on the basis of detailed investigation and investigation of the construction site and surrounding environment,the key construction technologies of deep foundation pit support and earthwork excavation are fully studied and analyzed.According to functions and requirements in terms of engineering geology,hydrogeology and building use of the project,key construction techniques of deep foundation pit support and earthwork excavation are worked out,which provides experience for guiding the construction of similar practical projects.