Influence Factors’ Analysis of the Face-End Roof Leaks Exposed to Repeated Mining Based on Multiple Linear Regression

Table 2

Support resistance distribution in each area of the working face.

Support working resistance (MPa)	Working face area support resistance distribution ratio (%)
	1–35	36–70	71–105	105–143	Average
20–30	1.7	1.5	2.3	1.8	1.825
30–40	34.1	25.8	33.5	32.4	31.45
40–50	44.5	48.6	47.3	39.6	45.00
50–60	17.2	22.3	14.0	24.7	19.55
60–70	2.5	1.8	2.9	1.5	2.175