7Volkwein A,Gerber W.Stronger and lighter—evolution of flexible rockfall protection systems[R].In IABSE-IASS 2011 London Symposium Report:Taller,Longer,Lighter;IABSE:Zurich,Switzerland,2011.
8EOTA,ETAG 27.Guideline for European technical approval of falling rock protection kits[S].European Organization for Technical Approvals,2012.
9Gerber W.Guideline for the approval of rockfall protection kits.Environment in practice[R].Bern:Swiss Agency for the Environment,Forests and Landscape(SAEFL),Swiss Federal Research Institute WSL,2001.
10Maegawa Koji,Tajima Tomonori,Iwasaki Masa.Weight impact tests on a simple and flexible rock-fence using a PE-net[J].Journal of Structural Engineering A,2005,51A(3):1615―1624.