摘要
根据钻孔灌注桩施工过程中常见的八类施工事故，提出了相应的预防及处理方法，特别对掉导管及堵管严重的灌注桩，建议采用二次剪球方法接桩，并详细介绍了接桩时机、操作程序及方法。
Based on 8 kinds of common accident in bored cast-in-place piling, put forward corresponding prevention and treatment methods. Especially aimed at guiding pipe falling off and severe plugged piles, second ＂ball cutting＂ （cut off cement filler bottom wired lock and let the cement dropped into borehole suddenly） to connect the plugged pile; connecting occasion, operating procedure and method are introduced in detail.
出处
《中国煤田地质》
2007年第A01期61-62,69,共3页
Coal Geology of China
关键词
钻孔灌注桩
孔斜
掉钻头
浮笼
堵管
二次剪球接桩技术
bored cast-in-place pile
borehole deflection
bit falling off
floating steel bar cage
pipe plugging
second ＂ball cutting＂ connection technique
