Numerical Analysis on the Performance of the Underwater Excavation

Table 2

Input parameters of the soil layer and structural members for the YDM excavation.

Soil	μ	(kPa)		(MPa)	(MPa)	(MPa)
SM	0.33	0	0.64	18.347	18.347	55.041	0.9	0.5	21.4	0
CL	0.33	23	0.84	22.439	22.439	67.317	0.9	1.0	9.3	0
SM	0.3	11	0.61	23.009	23.009	69.297	0.9	0.5	23.0	0
SM	0.3	8	0.59	31.218	31.218	63.645	0.9	1.0	24.2	0
CB	0.27	5	0.35	132	132	396	0.9	1.0	40.0	10
CL	0.3	30	0.74	32.076	32.076	96.228	0.9	0.5	15.0	0
CB	0.26	5	0.29	198	198	594	0.9	1.0	45.0	15
Structure type		Thickness(m)		E(MPa)					μ
Diaphragm wall		1.2		25200			25		0.15
Cross wall		1.0		25200			25		0.15
Concrete slabs		4.0		23100			24		0.3
Concrete strut		1.0		6200			25		0.15

Young’s modulus was reduced by 20%.