Combined drilling bottom-enlarging pile-planting construction method
A construction method and a combined technology, applied in the direction of drilling equipment and methods, percussion drilling, rotary drilling, etc., can solve the problem of affecting the quality of prefabricated piles, reducing the technical performance of implanted piles, and affecting the construction of piles Efficiency and other issues
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[0026] Such as Figure 1-7 As shown, a combined drilling and bottom drilling system for planting piles includes a power head assembly 1, a multi-section drill rod 3 with a stirring blade 31 retaining ring 32, a spiral drill rod 7 with a spiral blade 71, and an enlarged The cutting wing 41 and the drilling tool 4, the support frame 6, the drill rod fixing frame 8 and the pile frame 5 of the cutting wing 41 and the cutting wing 42 and the control system including the column rotation system, the drilling rig control system, the pile frame control system and the grouting control system. The component 1 includes a lifting pulley 11, a frame 12 with a rear guide block 121, a vertical motor and a reduction box 122, a hydraulic pipeline and a grouting pipeline. The reduction box 122 has a hollow output shaft 124; the retaining ring 32 includes a retaining ring 321 , A pair of plug-in boards 322, 322' and a pair of sockets 323, 323'; the pile frame 5 includes a host chassis 51 with at le...
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