Investigation of New Energy Absorbing Mechanisms Used to Fix Rock Bolt Plates

In this study, different plate fixing designs were tested in order to improve rock bolting performances. Instead of commonly used steel nuts, investigated by both laboratory and site studies. addition, the usability nuts energy absorbers made polyamide type engineering polymer was assess whether they are advantageous for aim supplying high-energy absorbing features. experimental deformation-controlled load tests carried out evaluate bearing absorption capacities totally eight groups specimens. According findings from use material with as an absorber material, rather than using instead supplies good results. As another outcome, it has been determined that proper washers between can significantly It evaluated capacity bolt plates be economically increased up 10 times suitable placed nut parts. concluded polyamides remarkably performances especially masses where high property is needed, like those bursting, squeezing swelling problems.