Auger Drilling Techniques | Percussion Drilling Techniques | OdexTM or TUBEX | Grout Pumps | Grout Sources
Vibratory Drilling Techniques (Crane & Mandrel) | Air Rotary or Rotary Wash | Grout Mixes | Slump Test

This method utilizes continuous flight augers to remove the soil from the borehole as the drill bit advances. Once the augers have reached the desired depth, the drill tools are removed from the hole and a steel injection casing is inserted to the full depth. The drill hole is typically sized slightly larger than the outside diameter of the steel casing. The annular space between the drill hole and the casing can be filled with a fine sand to establish intimate contact if necessary. Additionally, the compressive forces produced during the injection of the grout tend to compress the soils around the grout injection pipe. This technique is the least disruptive to the insitu soils. Auger drilling can typically be used in any soil condition that will maintain an open hole long enough to install the steel casing, however, in soils where boulders exist or where rock must be drilled, other methods should be utilized.