underground mine

In the subsection caving method mining without a bottom pillar in the underground mining mine,blasting the operating air shaft or cable shaft will cause serious damage to the cables in the shaft caused by blasting flying stones,affecting the power supply system of the entire stope,and affecting

For development of large equipment，such as drill jumbos，digitalization and intelligence are the trends in future. In order to clarify the research direction of the self-developed drill jumbo，combined with the current status of the drill jumbos applied in China's underground mine，where the drilling