Parallel Seismic

Parallel Seismic is more accurate, more versatile than other nondestructive surface techniques for determination of unknown foundation depths.

Parallel Seismic (PS) systems are designed to determine the length and integrity of foundations when the top is not accessible or when the pile is too long and slender to test with echo techniques, or below a buried pile cap. Ultimately, Parallel Seismic testing provides information concerning the length and compressional velocity of foundations and can be used on concrete, wood, masonry, and steel foundations. This method also provides information about the soil below the foundation bottom.

Note: Parallel Seismic requires the installation of a grouted, cased borehole.

The PS-1 + SE/IR-1 Model combines Parallel Seismic (PS) with Sonic Echo/Impulse Response (SE/IR) for the best bundled deal. Achieve comprehensive foundation testing at a lower cost than if purchasing the systems separately as the systems share many common components. Call for details!

Data Platform Required, Sold Separately

NDE-DAQ Platform NDE-DAQ
Freedom Data PC
NDE 360 NDE 360
Materials Tested:
  • Deep Foundations
  • Abutment Piers
  • Sheet Piles and Footings
Test For:
  • Foundation Type
  • Length Determination
  • Scour Evaluation
  • Foundation Integrity
Meets ASTM:
  • N/A
Meets ACI:
  • ACI 228.2R

Key Features & Specifications

System design allows for fast and accurate field measurements - depth accuracy can be determined within 5% or better IX Foundation, a seismic analysis and display program allows the full range of data to be viewed at one time, improving the ability to identify the foundation bottom
More economic and versatile than other equipment/techniques used for determination of unknown foundation depths Test piles that are partially/totally submerged
Method and system allows for testing of piles without excavation Determine the tip depths of foundations with complex geometries such as piles under pile caps
System is compact, durable, and easily transported, allowing for multiple tests per day More accurate than other NDT surface techniques for determination of unknown foundation depths when access to foundation top is limited

Hands-on training is available for all of our NDE test methods at our Wheat Ridge, Colorado (USA) location, which is a suburb located approximately 15 minutes northwest of downtown Denver. Training may be available at your location by one of our agents/engineers upon special arrangement.


Save money! Contact Olson when adding on to an existing system, or purchasing multiple systems as some of the components are common to other test methods.

For complete details about any of our products, call our toll free number at 1-888-423-1214 or email Olson Instruments: