The construction method of large diameter rotary jet grouting pile is to use the diameter of150A mm bit drilled the guide hole and equipped with a jet monitor to turn on the high pressure jet when the designed toe level was reached. The spray treatment is initiated by breaking up the soil particles using high-pressure grouting, which is then sprayed and mixed for stirring under the rotation and upward motion of the nozzle. withDCMIn contrast, the coverage of mechanical drilling in the construction of large diameter rotary jet grouting pile is much smaller, and the construction drill of large diameter rotary jet grouting pile can meet the requirements of site height limit. As a result, the chance of encountering obstacles will be smaller, and the large diameter rotary jet grouting pile drill can drill holes in rock obstacles by pre-drilling.

Pile construction process of large diameter rotary jet grouting pile:

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