Mechanical Performance of Deep Circular Caisson Sinking in Deep Layered Soft Soil

Table 2

The main physical and mechanical indexes of soil layer.

The name of soil layer	Bulk unit weight of soil (kN/m³)	Internal friction angle (°)	Cohesion (kPa)	Compression modulus (MPa)
Clay	17.5	13.7	23.5	3.15
Sludge mixed with silt	17.2	20.7	5.5	2.39
Silt with sludge	18.9	16.0	11.7	6.81
Sludge	17.1	13.8	13.0	3.26
Slit with sludge	18.9	17.4	15.3	6.70
Mucky clay	17.5	19.4	14.8	3.41
Clay silt	20.2	25.8	15.3	9.38