Development and Application of Rock-Drilling Equipment in China
(1 China Railway Yanfeng Chengdu Science and Technology Co. Ltd., Chengdu 611731; 2 China Railway Southwest Research Institute Co. Ltd., Chengdu 611731)
Abstract：
Through researching the development of rock- drilling technology, data collection and site surveys, a technical and economic analysis of hydraulic drilling equipment and pneumatic rock-drilling equipment for tunnel drilling operations was conducted. The results show that hydraulic drilling equipment has obvious advantages over pneumatic rock-drilling equipment in terms of construction efficiency, energy savings, emissions reduction, personnel management, etc., and hydraulic drilling equipment for tunnel drilling is the development trend of the future. It is recommended that a drill jumbo suitable for the technical characteristics of domestic tunnel construction should be developed considering existing equipment techniques and tunnel geological conditions.
2018, Vol. 55 