钻孔压浆桩基本原理钻孔压浆桩施工法是利用长螺旋钻孔机钻孔至设计深度,在提升钻杆的同时通过设在钻头上的喷嘴向孔内高压灌注制备好的以水泥浆为主剂的浆液,至浆液达到没有塌孔危险的位置或地下水位以上0.5～1.0 m处;起钻后向孔内放入钢筋笼,并放入至少1根直通孔底的高压注浆管,然后投放料 The basic principle of drilling grouting pile Drilling grouting pile construction method is the use of long auger drilling machine drilling depth to the design, while raising the drill pipe through the nozzle located in the drill bit high pressure perforated prepared hole to cement Slurry as the main agent of the slurry to the slurry to reach the danger of collapse hole position or above the groundwater level 0.5 ~ 1.0 m Department; after drilling into the hole into the steel cage, and placed at least one through-hole bottom of the high-pressure grouting Tube, and then cast material