Analysis of Influence Law of Burial Depth on Surrounding Rock Deformation of Roadway

Table 1

Comparison of displacement of new digging roadway roof to floor.

Depth (m)	300		400		500		600		700		800		900
Displacement of roof to floor (mm)	82.8		139.5		187.8		227.7		259.3		285.5		297.3
Difference value (mm)		56.7		48.3		39.9		31.6		23.2		14.8