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The Piletest PSI parallel seismic instrument for pile foundations

PSI

PSI uses the well-known Parallel Seismic method to establish the length of existing foundations (specifically for a pile or deep foundations) where the superstructure  (i.e. existing building) precludes access to the pile heads.
It is sometimes the only pile integrity test that can be performed.

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  • For making reuse of old piles

  • Easy to run test 

  • Measures only the pile length under a structure 

  • Standard compliant with

    • AFNOR NF P94-160-3

    • ASTM D8381-21

 

Application

The test requires the installation of a plastic access tube in parallel and as close as possible to the tested pile. The tube should be carried down to a depth exceeding the assumed pile length by a margin of 8-10 meters and filled with water.

In unsaturated soil the tube should be firmly grouted in the hole to achieve good coupling with the surrounding soil.

When sustainability requires old pile reuse, PSI offers a way to measure what pile length is real there

The Piletest symbol of quality

Reliable

  • Specially designed and tested for a hostile construction environment.

  • 3-year warranty!

  • 10 years free software

  • Rugged connectors, cables & sensors

The Piletest symbol of great features

Easy to Use

The Piletest symbol of high performance

Top Perfromance

  • Highly sensitive acoustic sensors 

  • Check any pile length up to 50m in less than 20 minutes

  • Test all types of piles

  • Weighs under 10Kg

PSI - Technical Specifications

Physical

Housing

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Dimensions

Weight

 

 

Temperature range

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Humidity

Waterproof

Sensor: Rugged metal case

Instrument: Rugged, Environment-proof

210W x 140L x 40H (instrument only)

6.0 kg (instrument with 50m cable)

0.8 kg (instrument only)

13.0kg (Typical shipping)

Operating : -25°C to 50°C

Storage : -40°C to 70°C

90% (non-condensing)

Sensor: Waterproof to 5ATM

Instrument: IP62, 90% condensation (light rain)

Power

External

USB cable, from computing device

Standards

ASTM D8381-21

AFNOR NF P94-160-3

Meets or exceeds

Technical

Hydrophone

 

Cables

Sample rate 
Resolution
Depth accuracy 

100Hz ~ 4kHz in stainless enclosure.

25 mm diameter

Heavy-duty polyurethane on reel.

50kHz (20μS resolution)

16bit A/D + 14 gain levels = 30bit dynamic range .

3mm resolution <0.1% error.

Performance

Pile length

Productivity

Memory Storage

1m-50m
10-15 min (depending on pile length) per pile

Unlimited

Output

Reporting

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Language

Arrival time vs. depth

Pile tip depth

Wave speed in the pile

Multi-lingual report generation in MS Word format

Requirements

Computer (Minimum)

Windows Win7/Win10/Win11.

Screen resolution 1280 x 1024 min.

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