Application Research of Intelligent Courtyard Drilling Rig in Deep Vertical Shaft Construction of Jiufengshan Pumped Storage Power Station
Due to the advantages of high mechanization,high construction efficiency,low manual labor intensity,safety and reliability,and good well completion quality,the raise drill has gradually replaced the traditional semi-mechanized drilling and blasting methods such as common method,lifting tank method,climbing tank method,etc.,and has been widely used in water conservancy and hydropower system in China.The traditional rail-wheel shaft drilling rig has some disadvantages such as not being able to turn by itself,difficult transportation,long construction preparation time,low comprehensive operation efficiency and low intelligence level.How to realize safe,intelligent,green and efficient shaft construction is an urgent problem to be solved.Based on this,on the background of application of CY-R120VD crawler self-propelled intelligent patio rig in deep shaft construction of Jiufengshan pumped storage power Station,the technical characteristics and selection method of intelligent patio rig are introduced in detail,the construction technology of patio rig in unstable rock formation is summarized,and the construction scheme of intelligent shaft under complex conditions is proposed,which has been successfully applied in actual production.The results show that the application of crawler self-propelled intelligent patio drill can significantly improve the construction efficiency and greatly reduce the safety risk,and provide important support for promoting the intelligent construction of water conservancy and hydropower projects in China.
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