摘要
岩溶区大直径钻孔灌注桩在施工中会因地质条件复杂而造成施工困难。以沌口长江公路大桥的钻孔灌注桩施工为例,提出了合理的导向平台安装方法,钻孔难点处理措施和埋钻处理流程以解决岩溶区大直径钻孔灌注桩施工中的关键问题。研究成果有效地指导了沌口长江公路大桥的基础施工,为同类条件下的桩基础施工提供了丰富的经验和成套解决方案。
The construction of large diameter bored caisson piles in karst area is always difficult due to the complex geological conditions. Taking the construction of bored caisson piles of Zhuankou Yangtze River highway bridge as an example, this paper solves the problems by proposing the guiding platform installation method,the action for drilling difficulties,and the treatment process of drill buried to resolve the key issues in the construction of large diameter bored caisson piles in karst area. The results effectively guide the foundation construction of Zhuankou Yangtze River highway bridge,and provide good experiences and complete solutions for piles foundation construction of similar conditions.
作者
由瑞凯
李芳武
张延河
杜俊
孙远
YOU Ruikai LI Fangwu ZHANG Yanhe DU Jun SUN Yuan(China Traffic Second Highway Survey and Design Research Institute Co. ,Ltd. , Wuhan Hubei 430056, China School of Civil Engineering and Mechanics, Huazhong University of Science and Technology, Wuhan,Hubei 430074, China)
出处
《施工技术》
CAS
北大核心
2017年第20期61-64,共4页
Construction Technology
关键词
基础工程
岩溶区
钻孔灌注桩
导向平台
埋钻
施工技术
foundations
karst area
bored caisson pile
guiding platform
buried drill
construction
