Study on the Vibration Response Characteristics of Broken Roof Rock in Coal Roadway
نویسنده
چکیده
Received: December 18, 2015 Revised: September 29, 2016 Accepted: October 18, 2016 Abstract: Background: Aiming at the challenges in control and perdition of roof strata which caused by the complexity of coal mine roof, the force and vibration characteristics of drill bit have been analyzed considering the coupling vibration between drill bit and coal rock, and the characteristics of coupled vibration have been studied under the condition of different rock hardness.
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