The development of drilling and blasting Nowadays, under different geological conditions, construction period and quality requirements, tunnel construction methods are also diverse.

With the compulsory implementation of the policy of "automated replacement of personnel and mechanized reduction of personnel", mechanized construction has significantly improved construction efficiency and safety. The use of rock drilling rigs to make blast holes has been widely used in mountain tunnel construction. In the application process, there are problems such as high loss cost, obvious increase in over-under-excavation rate, and high trolley failure rate. Combining the demand information of a mountain tunnel, it introduces how to implement the "nanny-style" trolley application service and management process, and provides reference for construction units in construction preparation, equipment procurement, construction and maintenance management.

The number and scale of mountain tunnel engineering projects are gradually expanding, and higher requirements are placed on engineering construction technology. During the construction of this type of project, the speed of tunnel excavation will directly affect the construction period of the project, and the excavation operation is restricted by the quality of the operating equipment itself, operating time, operating sequence, and operating steps.