Stand Modeling the Hammer Head–Impact Tool–Rock Mass Interaction
The authors have designed a stand with a pendulum drop hammer to model the hammer head–impact tool–rock mass interaction. The rock mass is simulated with an adjustable gas–liquid dampener, metal plate and marble block. The comparison analysis includes measured impact pulses in the hammer head and the impact tool, and the influence of the hammer head velocity recovery factors on interaction of the hammer head and impact tool with the dampener and rock block.