Analysis of Influencing Factors of Roadway Stability and Adaptability Criterion for Gob-Side Pre-Backfill Driving

Table 1

The normal stress at the cross section of the backfill for different buried depth.

Buried depth (m)	250	450	650	850
(MPa)	6.25	11.25	16.25	21.25
(MPa)	28.25	30.74	32.96	35.17

Note. is the overlying surrounding rock stress corresponding to the buried depth.