深孔大直径桩基钻头打捞的方案比选及安全防护  

Scheme Comparison and Safety Protection of Bit Salvage in Foundation of Deep Hole and Large Diameter Pile

作　　者：万小波[1] 任海军[1] 王桂正 

机构地区：[1]长江科学院,湖北武汉430010

出　　处：《福建建筑》2014年第8期79-80,76,共3页Fujian Architecture & Construction

摘　　要：钻头打捞是桩基施工中常见工程事故处理方式,如方案比选不对、预判不周或遇偶然事件,极易发生安全事故,造成钻孔报废,给工程造成极大安全隐患。本文结合江口大桥6-4#桩基钻孔埋钻事故的处理过程及安全防护要点,介绍一种深孔大直径桩基钻头打捞方案,取得了预期结果,值得同类工程事故处理借鉴。Bit salvage is common in course of pile foundation construction engineering accident handling, such as loose scheme than choose wrong, anticipationor meet accident, safety accidents extremely easily, cause borehole scrap, has greatly safety engineering. Estuary bridge, this paper 6 - 4# drilling hole pilefoundation accident treatment process and key points of safety protection, this paper introduces a deep hole of large diameter pile foundation drilling salvageplan, achieve the expected results, is worthy of reference for the similar engineering accident treatment.

关 键 词：钻头打捞 桩基 安全防护 

分 类 号：TU753.3[建筑科学—建筑技术科学]