Diaphragm Walls - Hydromill

The excavation of diaphragm walls with hydromill allows the construction of panels with max deviation from the vertical of about 0.3-0.5%, at depths beyond 200 m. With this technology, it is possible to excavate diaphragm walls in soil layers and bedrocks with compressive strength – UCS – up to 60-80 MPa. The hydromill also allows to correct any deviation from the vertical while excavating, in order cut competent.

The special diaphragm wall construction sequence by hydromill and primary-secondary panels overlapping ensure higher chances of watertight joints than conventional grabs.

With the hydromill technology it is possible to excavate diaphragms of a thickness of more than 2,000 mm at a depth exceeding 100-150 m.

Technology
The diaphragm wall construction phases by hydromill are the following:
• site preparation
• construction of guide walls
• pre-trench excavation
• panel excavation
• slurry de-sanding
• installation of reinforcement cage
• concreting

The panels are divided into primary and secondary panels. The primary panels can be realized by either single or multiple bites.

Request information
Trevi S.p.A. 5819, Via Dismano 47023 Cesena Italy | Phone +39.0547.319311 Fax +39.0547.319313
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