鋼製落石防護柵の落石による衝撃特性

抄録

The impulsive behavior for steel barriers protecting a falling rock is experimentally investigated. A sand layer or a pile of used tires is usually laid on the steel barriers as a shock-absorbing material against a falling rock.
Investigation has been carried out from the following points of view:
(1) a discrepancy of the shock-absorbing potentialities and the effects of a dispersion of an impulsive force through both materials.
(2) behavior of steel barriers under a static load and a impulsive force.
(3) the effect of flexibility of steel barriers upon the impulsive behavior.
From the test results the impulsive design load and the applying area of it to the barriers are proposed.