Table 1 Values of λ1.

From: An analytical solution for load transfer mechanism of Plum blossom pile foundations

Cross-sectional configuration of plum blossom piles

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Open arc angle of plum blossom pile θ (°)

s1–s2 (cm)

Cross-sectional area of pile (cm2)

a (cm)

li (cm)

li/a (i.e. λ1)

72

10

227.3278

8.5065

0

0

108

10

261.2272

9.4295

0.3108

0.0330

144

10

305.0957

10.5146

0.6599

0.0628

180

10

368.3973

11.8819

0.1053

0.0886

72

20

909.3111

17.0130

0

0

108

20

1044.9087

18.8591

0.6216

0.0330

144

20

1220.3830

21.0292

1.3199

0.0628

180

20

1473.5891

23.7638

2.1061

0.0886

72

30

2045.9500

25.5195

0

0

108

30

2351.0445

28.2888

0.9324

0.0330

144

30

2745.8617

31.5439

1.9798

0.0628

180

30

3315.5755

35.6457

3.1591

0.0886