A New Method for Predicting Residual Strength of Rock in Water Diversion Tunnel Using Drilling Process Monitoring

Table 1

Fitted parameters of the peak and residual strength using the H–B model and the proposed model.

No.	Rock types	Peak strength			Residual strength			φ	C	References
		σc	mi	R^2	ηmi	η	R^2	(°)	(MPa)
1	Amarelo Pais granite	76.59	40.96	0.99	5.35	0.135	0.97	57.59	12.42	Arzúa et al. [35]
2	Blanco Mera granite	131	37.82	0.982	5.12	0.131	0.80	59.52	18.79	Arzúa et al. [35]
3	Vilachan granite	116.29	28.23	0.994	2.98	0.109	0.82	54.91	19.39	Arzúa et al. [35]
4	Blanco Mera granite	122.73	41.61	0.9914	4.88	0.117	0.95	60.37	16.76	Arzúa et al. [37]
5	Stanstead granite	136	25.9	0.982	3.04	0.117	0.77	53.20	24.98	Walton [38]
6	Bunt sandstone	67	10.6	0.967	8.56	0.779	0.99	33.63	16.88	Gowd [39]
7	Indiana limestone buff	74	3.3	0.99	3.30	0.751	0.98	23.09	24.45	Walton et al. [40]
8	Red sandstone	93	6.5	0.99	2.39	0.424	0.98	32.91	25.29	Yang et al. [41]
9	Gosford sandstone	61	13.3	0.99	3.30	0.276	0.93	40.24	14.14	Masoumi [42]
10	Carrara marble	94	5.5	0.99	3.34	0.507	0.96	38.75	22.55	Walton et al. [43]
11	Westerly granite	138	48.3	0.99	7.02	0.145	0.96	64.22	15.79	Walton et al. [29]
12	Rhyolite	103	3.4	0.99	1.92	0.700	0.98	14.20	40.09	Walton et al. [29]
13	Indiana limestone gray	49	7.3	0.99	7.04	0.779	0.97	38.21	9.95	Walton et al. [29]
14	Porphyry	101	11.2	0.98	4.12	0.368	0.96	37.69	24.80	Walton et al. [29]
15	Rajnagar marble	84.8	6.8	0.93	3.33	0.490	0.86	35.69	20.92	Kumar et al. [44]
16	Biotite chlorite schist	67.3	5.4	0.97	5.40	0.395	0.62	31.75	18.60	Kumar et al. [44]
17	Purulia gneiss	153.6	24.3	0.97	3.17	0.131	0.91	51.28	28.76	Kumar et al. [44]
18	Kirthai granite gneiss	143.3	32.2	0.99	2.94	0.109	0.93	53.10	32.80	Kumar et al. [44]
19	Tennessee sandstone	229.2	3.2	0.99	2.40	0.751	0.93	17.62	103.08	Cuss et al. [45]
20	Coal	38.9	6.3	1	0.56	0.490	0.99	30.00	11.23	Yumlu and ozbay [46]
21	Sandstone	81.3	22.7	0.98	3.42	0.151	0.99	52.00	14.00	Yumlu and ozbay [46]
22	Norite	220.1	22.5	0.99	4.67	0.208	0.99	55.00	34.70	Yumlu and ozbay [46]
23	Quartzite	264.8	54.6	1	10.19	0.091	0.99	68.00	25.74	Yumlu and ozbay [46]
24	Hejiata coal G1	37.7	7.7	0.89	3.51	0.456	0.89	37.80	9.40	Gao and kang [47]
25	Hejiata coal G2	37.2	12.6	0.96	2.81	0.223	0.88	44.40	8.00	Gao and kang [47]
26	Coarse marble	71.2	5.1	0.99	2.59	0.507	0.96	28.00	22.14	Yang et al. [48]
27	Medium marble	112.9	7.2	1	7.20	0.565	0.99	34.40	31.70	Yang et al. [48]
28	Sandstone	93.3	7.7	0.99	5.20	0.675	0.97	35.40	28.36	Yang et al. [48]