Optimization of Measuring Points Layout around a Tunnel in the Transversely Isotropic Rock Mass

Table 4

The radial displacements and average relative errors when λ = 5.

Line	Radial displacement of each measuring point										(cm^−1)
	N1 (cm)	N2 (cm)	N3 (cm)	N4 (cm)	N5 (cm)	N6 (cm)	N7 (cm)	N8 (cm)	N9 (cm)	N10 (cm)
L1	16.70	12.99	10.23	8.36	7.05	6.08	5.35	4.77	4.30	3.92	0.15
L2	15.47	11.92	9.36	7.64	6.44	5.56	4.88	4.35	3.92	3.57	0.17
L3	12.10	8.99	6.99	5.68	4.77	4.11	3.61	3.22	2.90	2.64	0.23
L4	7.50	5.00	3.75	3.00	2.50	2.14	1.88	1.67	1.50	1.36	0.43
L5	2.90	1.01	0.51	0.32	0.23	0.17	0.14	0.12	0.10	0.09	5.38
L6	−0.47	−1.92	−1.86	−1.64	−1.44	−1.27	−1.13	−1.02	−0.92	−0.85	0.94
L7	−1.70	−2.99	−2.73	−2.36	−2.05	−1.80	−1.60	−1.43	−1.30	−1.19	0.57