特大桥钻孔灌注柱钻芯取样施工技术

Coring technology of cast-in place pile of the large bridge

结合贡嘎雅鲁藏布江特大桥钻孔灌注桩钻芯取样工程实例,阐述了在无法清理桩头、回填土层较厚的特殊条件下,成功钻取混凝土芯样的施工工艺。

Taking coring engineering cast-in place pile of the Gougga,Brahmaputra Bridge as an example,described coring technology of concrete samples in special conditions,such as waste piles that is hard to remove,and the thick back fill soil.