PSI Parallel Seismic Instrument

Overview

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.

  • 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

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.

Easy to Operate Inclination test for Borehole and Pile Foundations, Diaphragm and Secant Walls

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