Porous metal materials are a new style of engineering materials with structural and functional properties of energy absorption

shock absorption and damping.According to the energy absorption characteristic of porous metal materials

the criterion of energy dissipation of porous metal material was studied.And then the feasibility of porous metal material applied to roadway support of rock burst was analyzed.Based on the criterion of energy dissipation of porous metal material

the structural model of rigid-flexible energy absorbing support was established for the first time

and the porous metal materials were applied to supporting structure of energy absorption of rock burst.The impact failure process of roadway with energy absorbing support was studied by FLAC3D calculation software.The results show that rigid-flexible energy absorbing support structure with porous metal material can absorb impact energy efficiently

reduce impact load and increase the reliability of roadway substantially.In a word

the structural mo-del of rigid-flexible energy absorbing support established provides a new method for reducing rock burst and preventing dynamic disaster.