Filling rock mass joint weak intercalated layer reinforcing device and operation method

A filled rock mass joint weak intercalated layer reinforcing device comprises a tunneling cutterhead system, a coarse aggregate screening and conveying system, a soil retaining system, a climbing wheel supporting system, a machine tool system, a grouting system and a base system, the tunneling cutterhead system is installed at the front end of the machine tool system, and the coarse aggregate screening and conveying system is located behind the tunneling cutterhead system; a slag inlet of the tunneling cutterhead system is communicated with a material inlet of the coarse aggregate screening and conveying system; the soil retaining system is installed on the machine tool system, and the climbing wheel supporting system is arranged behind the soil retaining system and installed on the machine tool system. The grouting system is installed at the rear end of the machine tool system, and the base system is installed on the plane outside the rock body. The invention further provides an operation method for reinforc