旋挖工艺在城市高架桩基施工中的应用

Application of Spun-digging Technology in Construction of Urban Elevated Pile Foundation

该文通过对合肥市金寨路高架桥桩基的施工条件、交通组织和工期进度等具体情况进行综合分析研究,充分利用旋挖转机安全程度高、操作方便灵活、施工速度快、对现状交通影响小等特点,在城市高架桩基施工中采用旋挖钻孔灌注桩工艺,并采用合理的标段划分,统一招投标形式,既控制了成本,又达到了预期的目的。

The article comprehensively analyzes and studies the detail conditions of construction conditions, traffic organization and working schedule of Jinsai Road elevated bridge pile foundation in Hefei City. It is fully to utilize the characteristics of high safety level, convenient and flexible operation, quick construction and small influence on the present traffic of the spun digger. The spun-digging cast-in-place pile technology is used in the construction of the urban elevated pile foundation. And it is to use the reasonable biding section division and the unified bidding and tendering form, which can not only control the cost, but also reach the expected aim.