新渭南高架车站桥梁钻孔灌注桩后压浆技术

Post-Grouting Techniques for Bored Piles of Bridges of New Weinan Elevated Railway Station

郑西客运专线新渭南高架车站桥梁设计受桥上布置道岔的影响,对桥梁基础承载能力及工后沉降控制提出了更为严格的要求,为减少基础工后沉降、进一步提高基础承载能力,高架车站桥梁设计范围内采用钻孔灌注桩后压浆技术。

Affected by the arrangement of railway switches on the bridge decks, the more rigorous requirements were set for the carrying capacity and settlement control of the completed bridge foundations in the design of bridges of the New Weinan Elevated Railway Station on Zhengzhou-Xi＇an Passenger Dedicated Railway. In order to reduce the settlement and to further raise the carrying capacity of the foundations, the post-grouting techniques for bored piles of the foundations were applied within the design range of the bridges of the Elevated Railway Station.