Holding fence structure for avalanches or impact from stones/wood has a collecting net (CN) on a net-fastening cable, struts and an alarm device triggered by overload and fracture of the CN

摘要

A collecting net (1) fastens on a net-fastening cable (2). Struts (3) secured by anchoring cables (23) are used to support the net-fastening cable. An alarm-triggering device operates when the collecting net suffers overload and fracture. The net-fastening cable and/or the anchoring cable has an overload cable brake (4) to allow it to extend during a braking operation.