Multifactor Evaluation of Multiple Service Support and Optimization of Working Resistance of New Support Based on Dynamic Pressure

Table 1

Actual rated working resistance of the support.

Support number	Left column (MPa)	Resistance loss rate of the left column (%)	Right column (MPa)	Resistance loss rate of the right column (%)	Actual rated working resistance of the support ri (kN)	Resistance loss rate of the support (%)
49	/	/	39	7	/	/
61	26	38	37	11	7917	25
62	40	4	41	2	10178	3
64	41	2	32	23	9173	13
67	39	7	32	23	8922	15
68	38	9	39.5	6	9739	8
84	33	21	36	14	8671	18
85	38	9	/	/	/	/
86	40	4	/	/	/	/
88	35	16	38	9	9173	13
89	39	7	39	7	9801	7
90	34	19	/	/	/	/
91	40	4	36	14	9550	9
108	41	2	40	4	10178	3
110	/	/	28	33	/	/
111	38	9	40	4	9801	7
118	41	2	/	/	/	/
120	39	7	33	21	9048	14
129	38	9	36	14	9299	11
Average	37.6	10	37	11.3	p' = 9300	12