Design of the Supporting Structures for Large and Unusually Shaped Foundation Pit near the Yangtze River

Table 1

Geotechnical properties of the soil.

Layer soil type		Geochronology	Unit weight (kN/m^3)	Specific gravity (Gs)	Water content (%)	Void ratio	Coefficient of lateral pressure (K0)	Standard penetration Test (N)	Compression modulus, Es(MPa)	Shear parameters, c (kPa)	Strength, φ (°)
A	Miscellaneous fill		19.3	2.72	32.6	0.87	0.42	8	4.16	26	25.3
B	Muddy silty clay		17.0	2.68	41.9	1.17	0.50	3	3.15	27	15.2
C1	Silty clay		19.4	2.68	26.5	0.75	0.37	12	12.49	17	32.2
C2	Silty fine sand		19.4	2.72	25.3	0.74	0.35	28	13.35	15	32.7
D	Gravel sand		20.0	2.73	25.8	>0.57	0.25	96	18.07	0	45
E	Silty fine sand		19.3	2.72	24.7	0.74	0.35	42	15.10	6	33
F	Mudstone	K2p	21.4	2.77	15.7		0.53			100	44.9