Underground grouting pile-forming multipurpose drill bit and designated pile diameter injection system construction method
A technology for forming piles and drilling bits, which is applied to drilling with liquid/gas jets, drilling equipment and methods, sheet pile walls, etc. Disturbance, long action time, small effect of surrounding environment
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[0038] Below in conjunction with accompanying drawing and concrete application embodiment, content of the present invention is described further: Accompanying drawing is shown as underground grouting specified pile diameter injection system construction method SJS of the present invention, MJS / RJP process flow chart and construction flow chart and underground injection Structural schematic diagram of the multi-purpose drill bit for grouting pile formation. The multi-purpose drill bit for underground grouting pile formation includes the reverse suction section 1, the upper cutting water section 2, the slurry return section 3, the transition section 4, the slurry outlet section 5, the lower cutting water section 6, the upper Cutting water outlet 7, slurry return port 8, ground internal pressure sensor 9, main slurry nozzle (1) 10, main slurry nozzle (2) 11, cross cutting nozzle 12, simulated slurry 13, main slurry air hole 14, main slurry hole (1 ) 15, the main slurry hole (2) 16...
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