大直径扩底灌注桩设计

Design of large-diameter expanded-bottom cast-in-place pile

以合肥滨湖时代广场C2栋高层建筑为依托,对该栋建筑桩基础进行了设计,经过对拟建场地的土层情况、水文地质条件及场地与地基的地震效应的分析,并按照相关规范及评审专家意见,确定采用大直径挖孔扩底灌注桩基方案,经计算分析表明,大直径挖孔扩底灌注桩以桩端的端阻力为主,不考虑侧摩阻力。

Based on C2 high-rise building of Binhu Times square in Hefei city,the paper designs the building pile foundation.Through analyzing proposed field soil condition,hydraulic condition,and seismic effect between the proposed field and the foundation,according to relevant norms and assessment experts proposals,it determines to adopts the scheme of large-diameter expanded-bottom cast-in-place pile.The calculating analysis shows that the large-diameter expanded-bottom cast-in-place pile takes the pile-end resistance as the orientation without considering the side-friction resistance.