Continuous Flight Auger (CFA)

CFA technique (continuous flight auger) is an injection method. The soil is drilled with a continuous flight auger and it is injected with concrete through the same auger. Once injection is finished a metal cage is placed in the ground.

DAT instruments, datalogger for drilling, MWD, jet grouting, soil mixing, deep mixing, CFA, vibroflotation

Project parameters can be set up on the JET S 104 PC software and then sent to the JET 4000 AME / J datalogger. Following the projects specifications, piles are automatically executed by the datalogger.

Display, directly on datalogger LCD, of instantaneous and average recorded parameters, of graphics in terms of depth and of summarizing data. Automatic start of the equipment when starting recording, automatic stop when reaching required depth, automatic management of rod ascent (on/off or continuous proportional control). Automatic recognition of rod changing operation. Automatic recording suspension. Data downloading to PC in order to process, file, export and print exhaustive reports. Measuring and recording of the following selectable parameters (by appropriate sensors, both during drilling and withdrawal rod movement):

  • drill depth (JET DEPTH)
  • translation rod speed (JET DEPTH)
  • boring rod rotation torque (JET TORQ)
  • boring rod rotation speed (JET ROT)
  • X and Y mast inclination (JET INCL XY)
  • concrete pressure (JET PRESS)
  • concrete flow and volume (JET FLOW)
  • injected pile length
  • date, time (beginning and end of work), duration
  • input for GPS receiver

DAT instruments, dataloggers for Jet grouting - Grouting - Cement injection - TAM grouting - Drilling - MWD - CFA - Deep mixing - Soil mixing - Vibroflotation - Diaphragm walls - Lugeon test - Mineral investigation

DAT instruments, dataloggers for Jet grouting - Grouting - Cement injection - TAM grouting - Drilling - MWD - CFA - Deep mixing - Soil mixing - Vibroflotation - Diaphragm walls - Lugeon test - Mineral investigation