Bat enclosure tunnel Forst and Hirsau

In the two existing tunnels "Forst" and "Hirsau"

Reopening of the Weil der Stadt - Calw section as Hermann

Hesse-Bahn for the bats living there. For this purpose, a continuous separation is to be installed in the tunnels in order to spatially separate the "railway chamber" from a future "bat chamber". This separation is carried out by a steel structure with full-surface infill by aluminum elements, as is common in noise barrier constructions.

Trennwandkonstruktion:

Excavation approx. 2,600 m³

Produce foundations approx. 860 m3

Micropiles approx. 320 pcs

Wiederauffüllung ca. 1,650 m³

Steel construction approx. 1,350 t

Lärmschutzelemente ca. 12,000 m²

Trapezblecheindeckung ca. 2,000 m²

Cross-linking open enclosure approx. 4,500 m²

Rettungstreppe:

Rockfall protection net with edge rope and anchors approx. 150 m²

Foundation reinforced approx. 42 m³

Staircase construction with supports S 235 J2+N approx. 10 t

Füllstabgeländer ca. 144 m

Gratings with steps approx. 108 m²