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Soil Reinforcement for Anchor Plates and Uplift Response by Hamed Niroumand

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Appendix L

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

[1] [2] [3] [4] [5]
Model size D (mm) L/D Depth (mm) Breakout factor, Nqimage
Square plates 100 1 100 3.37
2 200 7.36
3 300 12.98
4 400 20.21
Rectangular plates 200 1 200 8.14
2 400 21.77
3 600 41.90
4 800 68.51

Image

Friction angle in loose sand: Ø=38 degrees

Unit weight: 15 kN/m3

Breakout factor, Nqimage

Nq=1+LDtanØ(

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