The Miniaturization of Diaphragm Wall Technique â€“ the CUBE System-PPT Presentation

PPT Presentation

Pdf Summary

The presentation introduces the BAUER Cube System, a miniaturized diaphragm-wall construction system designed for confined and low-head spaces. It responds to urbanization, electrification, and sustainability demands for equipment with a small footprint, low height requirements, and minimal emissions and disruption. Potential applications include work beneath bridges and dams, underground transport and parking projects, utility tunnels, and energy storage.<br /><br />The system comprises a compact trench cutter, pumping equipment, a main winch, and a separate reinforcement-and-concreting unit. The cutter is 3.6 m high and excavates trenches 2.4 m long and 640–1,000 mm wide. The reinforcement-and-concreting unit can handle reinforcement cages up to 1.86 m high and uses modular tremie pipes, which are installed and removed in sections.<br /><br />BAUER tested the system at a site in Aresing across seven trench locations: five primary and two secondary panels. Six trenches reached 15 m, and one reached 42 m; the trials also simulated rock embedment. The soil profile alternated between sand and clay.<br /><br />Test results showed excavation rates of 15–25 cm per minute in primary panels and 1–5 cm per minute during simulated rock embedment. The maximum tested depth of 42 m was identified as the limit for the HDS drums and winch. Connecting the cutter and pumping units took about 15 minutes. Reinforcement installation required roughly 15 minutes per segment connection. For a 40 m trench, concreting took about three hours using a concrete pump, while installing tremie pipes with a small lifting device took about one hour.

Keywords

BAUER Cube System

diaphragm wall construction

miniaturized trench cutter

confined spaces

low-head clearance

urban infrastructure

reinforcement installation

tremie pipes

test trench excavation

sustainable construction equipment