Influences of Saturation and Wetting-Drying Cycle on Mechanical Performances of Argillaceous Limestones from Liupanshan Tunnel, China

Table 2

Mechanical and pore parameters of argillaceous limestones after the wetting-drying cycle.

N	σ0 (MPa)	ε0 (×10^−2)	E0 (GPa)	E50 (GPa)	ϕ (%)	Pe (%)
						0∼0.01 μm	0.01∼0.1 μm	0.1∼1.0 μm	>1.0 μm
0	81.83	1.15	8.89	6.17	8.73	0.10	10.18	87.88	1.84
3	80.13	1.17	8.55	5.75	8.82	0.27	7.83	90.48	1.42
6	79.16	1.21	8.46	5.61	8.84	0.23	6.13	91.32	2.32
8	71.19	1.32	6.65	4.75	9.41	0.02	7.83	90.86	1.29
10	64.49	1.33	5.71	4.53	9.52	0.01	7.06	91.46	1.47
12	51.25	1.43	4.96	3.28	9.55	0.02	7.03	92.24	0.71