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Pre buried cast concrete pile is drilled and bottomed with a single axis drill, and cement slurry is injected at the pile end and around the pile, and then the embedded pile is embedded into the foundation pile formed in the hole.

This method adopts the embedded method to construct the prestressed prefabricated pipe pile technology. According to the construction steps of drilling, pile end reaming, cement slurry injection, drilling lifting, and pile planting, the pile foundation is made of prefabricated pile body, pile end cement slurry, and soil to jointly bear the load. The construction period is short, without sediment, hole collapse and necking, good adaptability to complex geological soil layers, no soil squeezing effect, low noise and vibration, and small environmental impact. During construction, there is no need for mud circulation, no need for on-site fabrication of reinforcement cage and concrete pouring. Piles of various specifications are all produced in batches in the factory, saving materials, low project cost and stable quality. This method has high construction efficiency, low cost, energy saving and environmental protection.

technical parameter

项目/单位参数
钻孔直径 /MM500-1200
钻孔深度 /M≤80

工能作力 转速 /rpm

50
工能作力 扭矩  /kN·M120
工能作力 动力头上下行程 /M15

工能作力 加压方式

卷扬机钢丝绳加压
工作能力 钻杆加压力 /kN40
桅杆 起塔形式油缸后拉式
桅杆 截面形式正多边形 + 圆管

钻杆 连接方式

六方 + 插销
钻杆 规格 /MM外六方 L=9000
卷扬机升提力 一号卷扬机 /kN15
卷扬机升提力 二号卷扬机 /kN20
卷扬机升提力 三号卷扬机 /kN25
履带底盘 接地比压 /mPa< 0.06 
履带底盘 行走速度 /kM/h0.5

液系压统

额定工作压力 /mP

35

液系压统

主泵最大流量 /L/mi

220
动力头驱动方式变频电机+ 变频器调速系统
控制方式智能+电控
钻机总装机容量 /kW297.2
主机外形尺寸(长×宽×高)/M6.9 × 6.5 × 31
主机重量115


Engineering case