奥林匹克公园B27-2项目塔式起重机基础替代抗浮锚杆设计及施工技术

TOWER CRANE FOUNDATION REPLACEMENT ANTI-FLOATING ANCHOR DESIGN AND CONSTRUCTION TECHNOLOGY OF OLYMPIC PARK B27-2 PROJECT

针对奥林匹克公园B27-2项目B标段基础抗浮问题,提出了一种采用厚塔式起重机基础压重代替部分锚杆的基础抗浮设计方法。通过把塔式起重机基础设置成为筏形下沉基础,用塔式起重机基础代替抗浮锚杆进行等效抗浮计算,从而实现厚塔式起重机基础压重代替部分锚杆,节约了成本,解决了塔式起重机基础低标高锚杆不易钻孔,同时加快了塔式起重机基础施工工期,为今后同类工程提供了一种新的施工思路。

Ananti-floating calculation and design method of tower crane foundation is proposed for the building foundation floating resistance problem in section B of Olympic Park B27-2 project,which utilizes the weight of the tower crane to replace the part of the anchor.By setting the tower crane foundation as raft foundation,the tower crane foundation instead of the anti-floating anchor is used to validate anti-floating capacity,so as to replace part of the anchors with weight of crane foundation.This method saves the cost and solves the difficulty in anchor drilling with low elevation,whichspeeds up the tower construction and provides a new idea for the construction of similar projects in the future.