Monitoring and Prediction Analysis of Settlement for the Substation on Soft Clay Foundation

Table 3

HSS model input parameters.

Parameters	Description	Soil layer number
		①	②	③	④	⑤	Reinforced soil
	Effective cohesion	15	13	19	5	5	46
	Effective friction angle	11.8	19.4	13.1	32	24	41
(degree)	Dilatancy angle	0	0	0	2	0	9
(kPa)	Reference stress for stiffness	100	100	100	100	100	100
	Power for the stress-level dependency of stiffness	0.8	0.5	0.8	0.5	0.5	0.8
	Poisson ratio	0.2	0.2	0.2	0.2	0.2	0.2
(MPa)	Reference shear modulus at very small strain	79.5	191.7	91.8	224	199.8	540
(MPa)	Reference tangent stiffness for primary oedometer loading	9.3	21.3	10.2	36	22.2	63.5
(MPa)	Reference secant stiffness in standard drained triaxial test	9.3	21.3	10.2	36	22.2	63.5
(MPa)	Reference unloading/reloading stiffness at engineering strains	26.1	63.9	30.6	78	66.6	180
	value for normal consolidation	0.79	0.67	0.77	0.47	0.59	0.34
	Failure ratio	0.9	0.9	0.9	0.9	0.9	0.9
	Shear strain at which	2.4	2.5	2.3	2.7	2.9	3.2