Fig. 8.
The panels present normalised cable tension over time at four barrier locations with corresponding barrier states. Panel a shows F B 1 with bottom values increasing to about 0.25 and top values increasing to about 0.75, then both gradually decreasing. Panel b shows F B 2 with bottom values rising to about 0.08 and top values reaching about 0.085, followed by a gradual decrease. Panel c shows F B 3 with bottom, middle, and top values increasing to about 0.05 to 0.07, then decreasing slightly. Panel d shows F B 4 with bottom values reaching about 0.025 and top values about 0.023, followed by a slight decrease. Panels e to h show corresponding barrier conditions with deformation and retained debris at F B 1, F B 2, F B 3, and F B 4.(a)–(d) Time histories of measured forces in the main load-bearing cables of the four flexible barriers. (e)–(h) Front elevation view of respective barriers after the end of debris flow impact