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粉喷桩广泛应用于软基段的水利工程结构物的基础和两侧。施工前粉喷桩施工质量控制,要加强对施工机械设备、原材料的检验,明确粉喷桩的质量标准,进行有效的工艺试桩;施工过程中,要控制好施工场地的平整和压实,清理和压实范围应使粉喷桩机有足够的施工操作场地,并符合设计的长度和宽度;粉喷桩要尽量打至持力层上,并且进入持力层一定的深度;同时,粉体质量的计量控制也很关键;施工时还要严格掌握好钻机提升速度、搅拌叶旋转速度等,确保搅拌的均匀性,尽量采用全桩复搅以保证质量。
DJM pile is widely used in soft foundation section of the foundation of hydraulic structures and both sides. Before construction, the construction quality control of DJM should strengthen the inspection of construction machinery and equipment and raw materials, clarify the quality standards of DJM and carry out effective technology test piling. In the process of construction, it is necessary to control the formation and compaction of construction site, The range of cleaning and compaction should make the powder injection pile machine have enough construction operation site and conform to the designed length and width; the powder injection pile should try its best to hit the holding layer and enter into the holding layer to a certain depth; meanwhile, the powder Body weight measurement control is also crucial; rigorous rigorous rigging to enhance the speed of the rig, stirring leaf rotation speed, etc., to ensure the uniformity of mixing, try to use full pile compounding to ensure quality.