Abstract：The rockfall attenuator system aims at preventing rockfall hazards by controlling the rockfall trajectory and attenuating the rock impact energy. In order to study the energy dissipating performance of the system，the laboratory rockfall impact experiment was conducted，a multiposition distributed counterweight method was put forward based on the net deformation analysis，and a numerical model was built to study the performance of the system under high-speed rockfall impact and to simulate the protecting process of the system against the rockfall impacting simultaneously or continuously. The research results show that the multiposition distributed counterweight method obviously improves the protection performance of the system. The attenuation rates of the rockfall velocity and the kinetic energy increase by 20.02% and 21.56% at most respectively. The counterweights at different positions on the net improve the protection performance of the system differently. The closer the counterweight to the falling position，the more obvious the improvement. Meanwhile，by using distributed counterweight method，the high-speed rockfall impact and simultaneous/continuous rockfall impact can also be defended successfully. The research results can provide a reference for the design and engineering application of the rockfall attenuator system.
崔廉明，石少卿，汪 敏，王文康. 多位置分布配重下引导式落石缓冲系统冲击防护性能研究[J]. 岩石力学与工程学报, 2019, 38(2): 332-342.
CUI Lianming，SHI Shaoqing，WANG Min，WANG Wenkang. Research on the impact protection performance of the rockfall attenuator system under multiposition distributed counterweights conditions#br#. , 2019, 38(2): 332-342.
BUZZI M，SPADARI A，GIACOMINI S，et al. Experimental testing of rockfall barriers designed for the low range of impact energy[J]. Rock Mechanics and Rock Engineering，2013，46(4)：701-712.
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2019, Vol. 38 
