Mechanical Properties of High-Strength High-Performance Reinforced Concrete Shaft Lining Structures in Deep Freezing Wells

Table 10

The force parameter table of concrete.

Model	E (×10^4 MPa)	Poisson ratio	(MPa)	(MPa)	(MPa)
A-1	3.66	0.2	39.2	65.3	7.18	0.45	0.9
A-2	3.72	0.2	43.3	72.2	8.10	0.45	0.9
A-3	3.77	0.2	46.1	76.8	8.35	0.45	0.9
A-4	3.59	0.2	40.7	67.9	7.45	0.45	0.9
A-5	3.67	0.2	44.5	74.2	8.21	0.45	0.9
A-6	3.75	0.2	47.6	79.3	8.42	0.45	0.9
A-7	3.62	0.2	37.3	62.2	6.71	0.45	0.9
A-8	3.78	0.2	47.0	78.3	8.39	0.45	0.9

Note: is the modulus of elasticity; is the yield stress; is the uniaxial tensile strength of concrete; is the shear transfer coefficient when cracks open; and is the shear transfer coefficient when the crack closes.