Installation sequence

1. Pipe positioning

The pipe is positioned against defined trench geometry, alignment requirements and installation tolerances before support is applied.

2. Keyhole support geometry

The method creates a controlled support geometry around the pipe, reducing the amount of selected imported material required around the installation.

3. Sprayed foam application

Sprayed structural polyurethane foam is applied to create engineered support and restraint according to the project-specific installation design.

4. Controlled restraint

The installation sequence is managed to control pipe movement, restraint and stability through the relevant stages of the work.

5. Verification / PGMS

Positioning and verification records can capture pipe location, alignment and installation progress as part of the quality record.

6. As-built data

As-built data supports technical review, handover, future asset understanding and comparison with the project assumptions used in PACE.

Material movement

Reducing dependence on imported aggregate

Conventional restrained pipeline installation can require significant imported aggregate, selected backfill, haulage and spoil handling. HydroFoamer changes the construction activity around the pipe by using engineered sprayed foam support and a controlled installation sequence.

  • Less dependency on selected imported aggregate where the project design allows.
  • Reduced haulage and material movement can improve constructability in remote or constrained locations.
  • Foam design, trench geometry, access, pipe specification and ground conditions remain project-specific inputs.
  • PACE helps compare the material, logistics, cost and programme effects before deeper project review.

Request a technical briefing

Share the installation context, constraints and business-case question. HydroFoamer can help frame a scenario before detailed project work begins.

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