Pile Integrity and Length Testing

SE-IR EquipmentSubtronic owns and operates a Sonic Echo/Impulse Response (SE/IR) system which is used to determine the integrity and length of piles. SE/IR testing can be done on new and existing foundations, and it works best with columnar type foundations such as piles and drilled shafts. SE/IR testing can also be used on abutment walls, mat foundations, and other similar structures. Concrete, wood, and round steel pipe foundations are all able to be tested.

To perform a SE/IR test, the top of the pile, or as close to the top as possible, is hit with a plastic hammer outfitted with an recording trigger. The impact of the hammer generates a sonic wave and starts data recording, and following a time delay the reflected waves are received and recorded by the equipment. After analysis of the collected data, the length, continuity, and structural integrity of the pile can be determined.

The SE/IR system Subtronic owns is small, rugged, and easily deployed, and is accurate to within 5% in determining foundation depth. Our system offers real-time data viewing while testing, and advanced digital filtering using lowpass, highpass, and basspass options allow enhanced identification abilities of echo events and reduced background noise. The ability to use SE and IR methods simultaneously also allows data correlations to be made between the two methods, strengthening any data observations made.SE-IR graphic

Our concrete inspection equipment is able to be used on:

  • Auger Cast Concrete Piles
  • Driven Concrete Piles
  • Drilled Shafts
  • Wall Piers
  • Wood Piles
  • Round Steel Pipe Piles
  • Bridge Abutments

Our concrete inspection equipment can be used to test:

  • Deep Foundation Depths
  • Cracks
  • Diameter Changes
  • Soil Intrusions
  • Voids
  • Uncured or Weak Concrete