HORIZONTAL DTH-DRILLING IS A GAME CHANGER

bdth 4.PNG

Bortech's clients have relied on their expertise and innovation to solve the task of drilling through all soil and rock types. 

ONE METHOD SOLUTION TO THE
UNPREDICTABLE UNDERGROUND

Bortech DTH Method Benefits

  • Drill diameters from 8" to 48"

  • Drill lengths up to 300'

  • Same tool for all soil types

  • Fast set up time

  • No concrete pad, starter block or thrust block

  • Power source is above ground

  • Remote control keeps all personnel out of pit 

  • Only method that can penetrate hard rock

  • Only method for cobbles, boulders and shot rock

  • Jacking pit of 21' for 10' steel casing segments

  • Ring bit tolerance eliminates exterior grouting

  • No bentonite for casing lubrication needed  

Bit RIng and Shoe.PNG
  • Welded casing shoe to starter casing prevents pilot bit leading the casing

  • Hammer action pulls casing through the bore hole

  • Closed face bit prevents ground infiltration into the casing pipe

  • Drill hydraulically adjust line and grade eliminating on grade jacking pit floor

  • Hammer force adjusts to what is needed to advance the casing pipe

  • The hammer energy is directed straight into the rock through the carbide point resulting in less radial vibration

  • Spiral flush pilot bit air channels direct exhaust air from hammer across the bit into the ring bit and casing pipe to prevent charging the ground

Problematic Conditions for Other Methods 
 

Mixed Face

Hard Rock

Boulders

CANMIN, MN