柳沟河大桥桩基施工技术

柳沟河大桥位于黄土地区,覆盖层土质疏松而且具有湿陷性,压缩量大,此外,该地区气候干燥,冬季严寒,在桩基施工中遇到不少困难。文章结合该桥的施工实践,介绍黄土地区桥梁桩基施工过程中的测量桩标埋设、成孔方法及砼材料选用等施工方案,为类似工程施工提供参考。

Construction Technology for the Pile Foundation of Liugouhe Great Bridge

Liugouhe river great bridge is located in the loessland.The soil on the cover layer is loose with the character of collapsibility and large draught.On the other hand,the climate in this area is dry and the winter is very cold,which brings great difficulties to the pile foundation construction.Based on the construction practices of this bridge,the Paper makes an introduction to the construction process of pile foundation in loessland,including embedding of measure pile,hole boring method and selection of concrete material etc.It will provide reference for similar works.