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Energy geostructures 33
Figure 2.5 Examples of pipe configurations running (A) perpendicular and (B) parallel to the axis
of energy tunnels.
Figure 2.6 Examples of pipe configurations for energy walls: (A) U-shaped pipe, (B) bent U-shaped
pipe, (C) W-shaped pipe and (D) repeatedly bent pipe. Sterpi, D., Coletto, A., Mauri, L., 2017.
Investigation on the behaviour of a thermo-active diaphragm wall by thermo-mechanical analyses.
Geomech. Energy Environ. 9, 1 20.
