长螺旋钻孔压灌砼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。在长螺旋干钻法基础上的压灌砼桩因其不受地下水位的限制,成桩速度快,低噪音,无振动,单桩承载力高,工程造价低,综合效益好,适应性强等优点近几年在全国各地开始广泛使用。同时,该种新桩型施工技术性强,桩基质量受施工因素较大。因此,本人根据实习过程中发现的质量并有关优秀施工单位的施工质量控制技术经验,供大家参考。 Long spiral drilling bored piles are drilled using long auger drills. After the design depth, drills are drilled, irrigations are performed, and the reinforcement cages are vibrated into piles. The existing holes and piles are completed by one machine at a time. The pressure-irrigation piles based on the long spiral dry drilling method are not limited by the groundwater level, they have fast piles, low noise, no vibration, high pile bearing capacity, low construction cost, good comprehensive efficiency, and strong adaptability. Such advantages have begun to be widely used throughout the country in recent years. At the same time, this kind of new pile construction technology is strong, and the quality of pile foundation is affected by construction factors. Therefore, based on the quality found during the internship and related construction quality control experience of excellent construction units, I will provide you with reference.