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长螺旋钻孔桩采用长螺旋钻机钻孔,至设计深度后提钻,灌砼,下钢筋笼振捣成桩,既成孔、成桩由一机一次完成任务。该工艺具有成桩速度快,低噪音,无振动,单桩承载力高,综合效益好,适应性强等优点。同时,该种新桩型施工技术性强,桩基质量受施工因素影响较大。因此,根据与传统循环钻机的施工工艺进行对比参照从而了解长螺旋钻孔桩在特定环境下所体现出来的优越性。
Long auger bored pile with long auger drilling machine, to the depth of the design after mentioning drilling, irrigation concrete, the lower steel cage vibrated into a pile, both holes, into a pile by a machine to complete the task. The technology has the advantages of fast pile forming speed, low noise, no vibration, high bearing capacity of single pile, good comprehensive benefits and strong adaptability. At the same time, the new type of pile construction technology is strong, the quality of pile foundation affected by construction factors. Therefore, according to the traditional circulating drilling rig construction process for reference to understand the long spiral bored pile in a specific environment reflected by the superiority.