虎跳门特大桥深水大孔径钻孔桩施工工艺

The Construction Techniques for the Deep-water and Large Aperture Drilled Piles of Hutiaomen Bridge

以虎跳门特大桥33号墩深水大孔径钻孔桩施工为例,从栈桥平台搭设、钻机选择、钻进参数选择、护筒制作及插打、KTY3000钻机钻进、钢筋笼制作与下放以及水下混凝土灌注等方面详细介绍了深水、大孔径钻孔桩施工工艺。

Taking the construction of the deep-water and large aperture drilled piles of No.33 pier of Hutiaomen Bridge as the example, this paper introduces the construction techniques for the deep-water and large aperture drilled piles in detail from aspects of the erection of the trestle platform, the selection of the drilling machines, the selection of the drilling parameters, the making and sinking of the steel liners, the drilling of KTY3000 drill, the making and sinking of the reinforcement cage, and the pouring of the concrete, etc.