钻孔灌注桩水下混凝土施工技术

摘要

Taking double-line bridge pile foundation engineering of Gui-Guang railway GGTJ-2 standard-adjustment river as an example,the pa-per introduces underwater concrete construction technology and technology methods of bored pile,analyzes construction problems causes such as water receiving nozzle,blocked and pipe laying and so on,and puts forward specific protective countermeasures and measures.%以贵广铁路 GGTJ-2标排调河双线大桥桩基工程为例，介绍了钻孔灌注桩水下混凝土施工工艺及技术方法，针对施工中易遇到的导管进水、堵塞、埋管等问题进行了原因分析，并提出具体的防治对策和措施。