Engineering Classification of Jointed Rock Mass Based on Connectional Expectation: A Case Study for Songta Dam Site, China

Table 9

The results of rock mass classification.

Adit							The new method	RMR
PDS1	Section 1	−0.6274	−0.2493	−0.1340	−0.7609	−0.7917	3	3
	Section 2	−0.5128	−0.1044	−0.3711	−0.6929	−0.8059	2	2
	Section 3	−0.1627	−0.1954	−0.4255	−0.8725	−1.0000	1	1
PD222	Section 1	−0.7333	−0.4018	0.0750	−0.3143	−0.9226	3	3
	Section 2	−0.3733	−0.2808	−0.2873	−0.7541	−0.9785	2	2
	Section 3	−0.3369	−0.4101	−0.4705	−0.6273	−0.9153	1	1
PD224	Section 1	−0.6548	−0.2621	−0.2503	−0.6012	−0.8064	3	3
	Section 2	−0.4100	−0.1616	−0.3240	−0.6396	−0.9506	2	2
	Section 3	−0.0830	−0.1375	−0.7674	−0.8562	−0.7253	1	1
PD226	Section 1	−0.7835	−0.3276	0.0173	−0.4693	−0.8231	3	3
	Section 2	−0.1145	0.0437	−0.5225	−0.8101	−0.9900	2	2
	Section 3	−0.0648	0.1669	−0.6793	−1.0000	−1.0000	2	2