复杂地质条件下的大口径钻孔灌注桩成孔  

Formation of Large Diameter Bored Pile Holes in Complicated Geological Conditions

作　　者：孙义俊[1] 尹起亮[1] 

机构地区：[1]山东省水利勘测设计院,山东济南250013

出　　处：《桥梁建设》2004年第6期45-47,共3页Bridge Construction

摘　　要：结合奉节长江大桥主墩灌注桩钻孔施工,阐述了在"岩层破碎带、大倾角斜岩面、岩层漏浆等"条件下的大口径钻孔技术和事故处理方法,供类似工程借鉴。With reference to the construction of bored piles of the main piers of Fengjie Changjiang River Bridge, this paper demonstrates the boring techniques and methods for handling boring accidents during construction of the large diameter bored piles in the complicated geological conditions like rock rupture zones, dip rock surfaces and leakage in rock strata, and it is expected that the techniques and methods herewith may serve as reference to the construction of the similar projects.

关 键 词：桥梁基础 钻孔灌注桩 施工方法 

分 类 号：U445.551[建筑科学—桥梁与隧道工程]