Study on Mechanical Properties and Nonlinear Strength Model of Deep Water-Sensitive Rock in Xianglu Mountain Tunnel

Table 5

H-B strength parameters corresponding to different modified plastic shear strains in the post-peak softening stage of the two types of rocks.

Modified plastic shear strain
	Limestone	Silty mudstone	Limestone	Silty mudstone	Limestone	Silty mudstone
=0	24.19	14.38	0.98	0.93	0.5	0.61
=0.2	20.20	12.15	0.76	0.66	0.51	0.63
=0.4	15.12	9.25	0.52	0.49	0.54	0.68
=0.6	10.76	7.23	0.32	0.32	0.59	0.73
=0.8	8.35	6.10	0.15	0.15	0.63	0.76
=1.0	7.30	5.79	0.014	0.006	0.65	0.78