This paper presents a simulation for a full-scale falling rock protection net by using 3D-distinct element method. In addition, the proposed method reproduced the unevenness to represent the planar elements like clump model. First the collision experiment carried out in advance, the dynamic deformation process of wire net is recorded by video and high-speed camera, and the tensions of wire ropes are measured. Second, the net and wire ropes are modeled by cylindrical and spherical elements. The reproductivity of the analysis results is examined by comparing with the experimental results. Therefore, the interlocking between the wire and the dead weight, and relationship between the impact load and time in the experiment can be represented by the proposed method.
