Deformation Mechanism and Control of the Surrounding Rock during Gob-Side Entry Driving along Deeply Fully Mechanized Caving Island Working Face

Table 4

Monitoring table of vertical stress.

Monitoring point	Vertical stress (MPa)	Vertical stress concentration factor	Monitoring point	Vertical stress (MPa)	Vertical stress concentration factor
1	6.4	0.47	14	18.2	1.34
2	9.0	0.66	15	16.9	1.24
3	12.6	0.93	16	16.3	1.20
4	19.8	1.46	17	15.9	1.17
5	28.5	2.10	18	15.5	1.14
6	33.3	2.45	19	15.5	1.14
7	33.9	2.49	20	14.7	1.08
8	29.8	2.19	21	14.6	1.07
9	26.1	1.92	22	14.3	1.05
10	23.5	1.73	23	14.3	1.05
11	21.4	1.57	24	14.0	1.03
12	19.9	1.46	25	13.6	1.00
13	18.7	1.38