钻孔灌注桩穿越抛石层的成桩施工工艺  

Construction Technology for Cast-in-Place Bored Pile Formation Traversing Riprap Layer

作　　者：赵建钢 熊炜 

机构地区：[1]上海市基础工程集团有限公司,上海200002

出　　处：《建筑施工》2015年第1期28-29,共2页Building Construction

基　　金：上海建工集团股份有限公司重点科研项目课题;课题编号为12JCSF-01

摘　　要：在昆山市中环快速化改造工程中,有一区段的钻孔灌注桩施工须穿越抛石河床,由于受抛石的影响,常规的成孔施工方法难以钻进。为了解决这个难题,采用冲击钻结合回旋钻的施工方法,确保了工程的顺利进行,同时为以后类似的工程积累了宝贵经验。In Kunshan city middle ring expressway reconstruction project, the construction of cast-in-place bored pile in one section traversed the riprap riverbed. Due to the riprap, it is difficult to drill by using the regular pore-forming construction method. The percussion drill combined with abrasion drill construction method is adopted to solve this problem so as to ensure smooth progress of the project, which accumulates precious experience for future similar engineering.

关 键 词：昆山市中环快速化改造工程 钻孔灌注桩 抛石层 回旋钻 冲击钻 

分 类 号：TU997[建筑科学—市政工程]