Efficient horizontal directional drilling

Flexible pipe installation using GRUNDODRILL directional drilling machines

Withfluid-assistedHDDthe GRUNDODRILLdirectional drilling machine (not to be confused with a jetting machine for hydro cleaning) first creates a pilot bore along a flexible bore path using a steerable drilling head. When the drill rods are pulled back, the borehole is upsized by an expanding head and the pipe attached is pulled into the bore path. That way, longitudinal bores, crossings and underpasses of waters and other traffic ways can be carried out using HDD drilling even in rocky ground.
The drilling fluid consisting of water and the organic clay mineral Bentonite supports excavation of the soil, removes the cuttings, stabilises the bore channel and reduces the friction of the casing of the pipe.
 
With the GRUNDODRILL jetting machines TRACTO-TECHNIK offers a complete series of broadly applicable, powerful Midi HDD rigs in perfomance classes 40 to 280 kN. Their application range covers:

• all pipe construction measures for gas, district heating and drinking water supply
• installation of sewage pressure pipes and cable protection pipes for broadband supply, telecommunications, e-mobility and wind power 
• further innovative application of directional drilling rigs in drainage and well construction as well as geotechnics

Advantages of Grundodrill directional drilling machines 

• Quality ‚Made in Germany‘. i. e long service life, minimum wear, low maintenance requirements
• As a standard equipped with bore automatics and power level control 
• Anchor drilling system for maximum stability during drilling
• Spacious rod magazine with rod exchange system for long HDD bores 
• Serially equipped for bores in solid rock, partly pre-equipped for cable-guided bores 
• Perfectly matched drilling tools for optimum bore progress in every type of soil 
• High productivity, flexibility and profitability from the first metre on

Application range of the Grundodrill directional drilling machines 

• Undercrossings
  directional drilling under streets, rivers, railway embankments and other obstacles 
• Longitudinal bores
  directional drilling parallel to streets, waters and buildings
• Installation of protection pipes
  for all kinds of media and pipes the using flexible HDD method
• Rock drilling 
  directional drilling in geologically complex terrains up to solid rock 

SPECIAL horizontal directional drilling applications

• Drainage construction
  vibration free drainage of dykes, slopes and or dumps using directional drilling
• Well construction
  Construction of horizontal drinking water wells or intakes using HDD
• Geotechnical applications
  using directional drilling, e.g. to stabilise dams 
• and much more