挖孔桩在高速公路桥梁基础中的应用  

APPLICATION OF DIGGING PILES IN EXPRESSWAY BRIDGE FOUNDATION

作　　者：邓荣钟 王勇 罗长翔 黄国剑 谭闯 DENG Rong-zhong;WANG Yong;LUO Chang-xiang;HUANG Guo-jian;TAN Chuang(China Construction Second Engineering Bureau Co.,Ltd.,100010,Beijing,China)

机构地区：[1]中国建筑第二工程局有限公司西南分公司,北京100010

出　　处：《建筑技术》2020年第10期1202-1205,共4页Architecture Technology

摘　　要：华丽高速公路第20合同段桥梁基础采用人工挖孔桩,在软石和土质地段使用人工开挖,进入基岩层后改用爆破方式开挖。施工中对提升架、桩孔护壁、桩孔检测、钢筋笼安装、混凝土浇筑等工序制讧技术措施,完成桩基施工。The bridge foundation of the 20th contract section of the Huali Expressway adopts manual digging piles,and artificial excavation is used in the soft rock and soil sections.After entering the bedrock layer,the blasting method is used for excavation.During the construction,technical measures were formulated for the lifting frame,pile hole wall protection,pile hole inspection,steel cage installation,concrete pouring and other procedures,and the pile foundation construction was completed.

关 键 词：挖孔桩技术 高速公路 桥梁基础施工 钢筋笼安装 混凝土浇筑 

分 类 号：TU74[建筑科学—建筑技术科学]