Construction technique for red sandstone roadbed filling

The invention discloses a construction technique for red sandstone roadbed filling. The construction technique for red sandstone roadbed filling comprises the steps that firstly, a certain section of a pre-filled roadbed is selected to serve as a test road section; secondly, a base of the pre-filled roadbed is pretreated, a central pile of the roadbed is discharged out of the base of the pre-filled roadbed, and edge piles are discharged according to the center pile; thirdly, the base of the cleaned pre-filled roadbed is ground, and a certain type of red sandstone is laid on the ground base; fourthly, the base, where the red sandstone is laid, of the pre-filled roadbed is paved and flattened; and fifthly, the paved and flattened base of the pre-filled roadbed is ground in a heavy-duty machine combined way, and thus the red sandstone-filled roadbed is obtained. According to the construction technique for red sandstone roadbed filling, red sandstone padding is fully used for roadbed construction, and the problem