When the shoulder surface below 0.8H (H is the maximum freezing depth) exist in the scope or intensity of soil frost heaving soil, within the scope of the excavation 0.8H strong frost heaving soil or soil, frost heave of the use of non-A, Group B fillers for filling.

When road shoulders below the 0.8 (H H depth) is the largest freezing cold inflation exists within the frozen soil, or soil, dug up inflation 0.8 H frozen within the inflation rate and inflation rate or the frozen soil, use of non-frozen inflation A , B group of filler for reclamation.

When below the road shoulder surface 0.8H (H is biggest freezing depth) in the scope has the swelling ground or the strong swelling ground, digs except the 0.8H scope in the swelling ground or the strong swelling ground, uses non-heave A, B group of padding trades fills in.

When the shoulder below the 0.8H (h is maximum freezing depth) within exists or when strong frost heave soil frost heave soil, excavation within the 0.8H or strong frost heaving of soil frost heave soil, using the non-frost heave of a category b packed replacement.

, excavate 0.8H it freezes bloated soil to be or strong to freeze bloated soiling in scope, use freeze getting bloated group packing of A and B change and fill out.