全套管拔除柱排式钻孔灌注桩施工技术在城际铁路中的应用

All casing pulling column was bored piles construction technology in the application of the inter-city railway

郑州机场至郑州南站连接线部分工程通过采用全套管拔除柱排式钻孔灌注桩施工技术成功拔除与老郑机城际铁路重合的钻孔灌注桩数十根,本文通过对全套管拔除柱排式钻孔灌注桩施工过程的研究提高了拔桩的速度和质量,为类似工程的施工提供参考。

Zhengzhou airport to zhengzhou station connecting part of the project by using the whole casing pulling column was successfully pulling bored piles construction technology and the bored piles of the inter-city railway overlap LaoZheng machine dozens of root, this article through to the whole casing pulling column was bored piles construction process of research to improve the speed and quality of piles,provide a reference for similar engineering construction.