Micro-Tunneling (MTBM)

Micro-Tunneling is generally defined as remotely controlled pipe-jacking (personnel-entry is not required) whereby the soils at the cutter face are controlled to maintain balance.  Muck removal is conducted by a pressurized slurry transport via variable frequency controlled centrifugal pumps. 

BTrenchless has the most advanced Information and Control System available, located for easy access by the operator. 



  • Large Diameters (>36")
  • All Ground Types
  • Continuous Face Support
  • Long Distance
  • Above or Below Water Table
  • EXTREMELY Accurate
  • Can be use in areas with hazardous materials/soils with minimal exposure to personnel


  • Most expensive trenchless method
  • Short drives are not economical
  • Requires larger work area