桩锚式深基坑支护技术在房屋建筑施工中的应用

Application of Pile-anchor Supporting Technology for Deep Foundation Pit in Building Construction

在深基坑支护施工中,钻孔灌注桩围护体系锚索锚固具有围护结构稳定性好、变形小、施工就位迅速、费用低、安全等优点。结合东莞市某项目深基坑施工,合理地选择深基坑支护方案,制定钻孔灌注桩、蜂窝环切法破桩头、锚索张拉、挂网喷射混凝土等科学有效的施工方案,在实践应用过程中取得良好的效果,为类似房屋建筑、市政或水利工程深基坑支护提供经验借鉴。

In the deep foundation pit supporting construction,the anchor cable anchoring system of bored pile has the advantages of good stability of retaining structure,small deformation,rapid construction,low cost and safety.Combined with the deep foundation pit construction of a project in Dongguan City,reasonable selection of deep foundation pit support scheme,the formulation of drilled pile,honeycomb ring cutting method to break the pile head,cable tension,net shotcrete and other scientific and effective construction scheme,in the process of practical application has achieved good results,for similar housing construction,municipal or water conservancy project deep foundation pit support experience reference.