Study on Calculation of Pile Sliding Interval of Large-Diameter Steel Pipe Piles on Offshore Platforms

Table 2

The parameters of soil layers and calculation results of soil parameters.

number	property	thickness/m	cohesion/kPa	friction angle/(°)	unit weight/kN·m^−3	floor elevation/m	pile end resistance/kN	dynamic friction resistance/kN	static friction resistance/kN
1	medium dense fine to coarse sand	2.4	0	39	8.5	3.0	3291.7	39	/
2	soft to hard clay	7.9	35	0	8.9	10.9	259.9	/	1024.1
3	dense silt	2.3	0	37	8.9	13.2	5944	112.3	/
4	dense sandy silt and hard clay interbedded	7.8	70	0	8.6	21.0	519.8	/	1644.2
5	hard silty clay	3.6	50	0	9.2	24.6	371.25	/	411.9
6	dense silty fine sand	8.4	0	39	8.5	33.0	9084.6	271.7	/
7	dense silty fine sand	20.3	90	0	8.3	53.3	668.3	/	5501.6
8	hard silty clay	6.1	80	0	9.0	59.4	594	/	1447.9
9	hard silty clay	5.4	0	36	8.6	64.8	15598.1	582.7	/
10	hard clay	11.4	100	0	8.8	76.2	742.5	/	3389.1
11	dense sandy silt	3.4	0	36	8.3	79.6	13963.5	717	/
12	hard silty clay	29.3	120	0	8.5	108.9	891	/	10587.5
13	dense sandy silt	2.9	0	36	8.5	111.8	2655.4	1394.5	/
14	hard clay	19.6	160	0	9.0	131.4	1188	/	9443