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本专题讲座(六)《旋挖钻斗钻成孔灌注桩》主要阐述旋挖钻斗钻成孔灌注桩的基本原理、优缺点、适用范围、应用情况、施工设备(含主机、钻斗、钻杆及主卷扬等内容),虽然也阐述该桩型的施工,但份量太少满足不了施工需求,现应部分读者建议,本讲主要较为详实地阐述旋挖钻斗钻成孔灌注桩的施工工艺(施工程序、施工特点、稳定液、施工要点、施工注意事项及施工管理检查等),以供设计、施工和监理同行参考。施工程序如图1所示,旋挖钻斗钻成孔灌注桩施工顺序
This seminar (VI) “Rotary Drilling Machine Drilling and Forming Pouring Piles” mainly expounds the basic principle, advantages and disadvantages, applicable scope, application, construction equipment (including mainframe, drill bucket, Drill pipe and the main hoist and other content), although also describes the construction of the pile, but the amount too little to meet the construction needs, it should be recommended by some readers, this talk is mainly a more detailed description of the rotary drilling bucket drilling perforated pile Of the construction process (construction procedures, construction characteristics, stable liquid, construction points, construction precautions and construction management inspection, etc.), for design, construction and supervision of peer reference. Construction program shown in Figure 1, rotary drilling bucket drilling perforated pile construction sequence