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Soil Reinforcement for Anchor Plates and Uplift Response by Hamed Niroumand

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Appendix M

Variation of Breakout Factor With Embedment Ratio Based on the Murray and Geddes Theory (1987) in Dense Sand

[1] [2] [3] [4] [5]
Model size D (mm) L/D Depth (mm) Breakout factor, Nqimage
Square plates 100 1 100 3.91
2 200 8.83
3 300 15.74
4 400 24.65
Rectangular plates 200 1 200 9.79
2 400 26.57
3 600 51.34
4 800 84.09

Image

Friction angle in loose sand: Ø=44 degrees

Unit weight: 17 kN/m3

Breakout factor, Nq:image

Nq=1+LDtanØ

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