Sonic Integrity Testing (SIT or PIT)

Sonic Integrity Testing (SIT/PIT)

The Sonic Integrity Testing or Low Strain Impact Testing from Allnamics is a powerful tool for determining the integrity of deep foundations and pile shafts.

In accordance to ASTM D5882, EuroCode, and other national codes for low strain impact testing, i.e. EA Pfähle 2012, CUR-Aanbeveling 109:2013

 

Key benefits

  • SIT-USB can be connected to any laptop or pc with a USB port
  • Efficiently reveals potential defects (i.e. major cracks, necking, soil inclusions)
  • Pile length indication
  • Easy to use software for measuring, interpretation and reporting
  • Rugged and waterproof pile sensor
  • High quality hardware for maximum quality measurements to detect also smaller defects
  • Supported by the Allnamics team with more than 50 years of experience
  • Customer Support
  • Extensive reporting options to PDF and MS Word format
  • In compliance with national and international standards (ASTM D5882, EuroCode, etc.)

The method of Sonic Integrity Testing (SIT/PIT)  

PIle Integrity Testing (PIT) or Low Strain Impact Testing (LSIT) has been developed as Sonic Integrity Testing SIT) in the Netherlands in the 1960s. It’s a fast and cost-effective testing method to determine defects in piles, to check the condition of deep foundation elements (as built versus designed or desired). Major cracks, necking and soil inclusions can be determined and indicates the pile length.

Allnamics' PDR is the wireless data acquisition unit for Static, Rapid and Dynamic Load Testing

Allnamics SIT-USB is an easy to use equipment for Sonic Integrity Test or Low Strain Impact Testing of foundation piles, based on an advanced sensor, to be connected to the USB connector of any computer or tablet
Allnamics SIT-USB is an easy to use equipment for Sonic Integrity Test or Low Strain Impact Testing of foundation piles, based on an advanced sensor, to be connected to the USB connector of any computer or tablet

Wireless monitoring avoids cable handling during onshore and offshore Dynamic Load Testing

Allnamics-SIT-USB on CFA pile of 20 m length
Allnamics-SIT-USB on CFA pile of 20 m length

Allnamics-SIT software gives a clear presentation of the measured signals, as well during testing as in an automated generated report

Allnamics-SIT software gives a clear presentation of the measured signals, as well during testing as in an automated generated report
Allnamics-SIT software gives a clear presentation of the measured signals, as well during testing as in an automated generated report

SIT-USB designed by the inventors

For low strain testing of concrete piles, to determine the integrity of piles, Allnamics engineers have developed their first SIT equipment back in 1960s. Based on the gained experience, both in developing equipment and more in performing tests and interpretation of test results, Allnamics has developed the state-of-the-art Pile Integrity Testing monitoring system which can be used in combination with the PDR  (SIT-PDR) and with any laptop computer, using the USB port (SIT-USB). With the advanced sensor, high quality sonic measurements can be made.

The professional SIT system is fully capable for the testing of deep foundations and foundation piles to efficiently reveal potential defects and indicates pile length.

The powerful and easy to use software enable to analyze the results directly on site. Signals and results can be shared with colleagues and office.

The testing engineer is supported by the voice response option of the SIT software.

 

The Site Characteristic Signal  

To distinguish reflections caused by soil from that of pile defects, signals of individual piles have to be compared to Site Characteristic Signal. The Site Characteristic Signal present all soil influences. Piles that shows signals deviating from the Site Characteristic Signal are suspected and needs extra analysis or additional testing.

The Allnamics-SIT present signals of all individual piles against the Site Characteristic Signal.

Wireless monitoring avoids cable handling during onshore and offshore Dynamic Load Testing

Signals of each pile is compared with the Site Characteristic Signal to distinguish reflections from soil influences from reflections to pile anomalies
Signals of each pile is compared with the Site Characteristic Signal to distinguish reflections from soil influences from reflections to pile anomalies

ALLWAVE-SIT for Quantitative Interpretation  

In addition to the normal qualitative interpretation, AllWave-SIT is available for Signal Matching techniques to quantify detected defects. The result of the AllWave-SIT Signal Matching process are the dimensions of the pile.

Wireless monitoring avoids cable handling during onshore and offshore Dynamic Load Testing

Use AllWave-SIT to determine the pile dimensions from SIT signals (low strain impact testing)
Use AllWave-SIT to determine the pile dimensions from SIT signals (low strain impact testing)

Allnamics Training courses

Allnamics Academy offers training courses in low strain impact testing. Dedicated training courses for test engineers in how to obtain interpretable signals. And for consulting engineers in analyzing and interpretation of signals, for clients and others who has to rely on pile tests in understanding the results and reports, including possibilities and limitations of pile integrity testing.

 

SPECIFICATIONS 

  • Allnamics-SIT-USB, high quality data acquisition system
  • Fast and Accurate
  • Sample rate 50 kHz
  • 24 bit conversion
  • Class IP66 housing
  • Robust design
  • Intelligent sensor (USID)
  • In compliance with ASTM Standard D5882, EA Pfähle 2012, CUR-Aanbeveling 109:2013, AFNOR NF P 94-160-2 and NF P 94-160-4.
  • Software program for monitoring, processing and reporting included

Software  

  • Software program for monitoring and signal processing
  • Powerful Analysis tools
  • Professional engineering reports
  • Unlimited measurements per pile
  • Shows averages for piles and site (SCS)
  • Compares signals to Site Characteristic Signal (SCS)
  • Filtering and amplification of signals
  • Operates in metric SI or Imperial/US units
  • Support multiple languages (English, German, Spanish, other on request)
  • Voice response

ADVANTAGES

  • SIT-USB can be connected to any laptop or pc with a USB port
  • Efficiently reveals potential defects (i.e. major cracks, necking, soil inclusions)
  • Easy to use software for measuring, interpretation and reporting

Rapid Load Testing in Hamburg, Germany

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