Study on Stress Disturbed Mechanism and Supporting Method of Weakly Cemented Roadway near Chambers

Table 1

The roadway stress test results.

Number of measuring points	Principal stress (MPa)			Dip angle (°)			Azimuth angle (°)
	σ1	σ2	σ3	σ1	σ2	σ3	σ1	σ2	σ3
1#	12.37	16.33	4.52	69.22	14.16	15.62	87.61	23.11	169.24
2#	11.29	17.79	3.87	71.25	12.83	16.17	85.34	25.74	159.33
Average	11.83	17.06	4.20	70.24	13.49	15.89	86.48	24.43	164.29