CFEM
This solution is based on the CFEM, which determines the bearing capacity of the foundation soil with the following formula:
Bearing capacity factors:
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Shape factors:
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Inclination factors:
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If H acts in the direction of the base width, then 
= 90°
If H acts in the direction of the base length, then 
= 0°
Other cases:
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Depth factors:
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If D/Bef > 1,0
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If D/Bef ≤ 1,0
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Terrain inclination factors:
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Inclination factors of the footing bottom:
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where: | cu | - | total cohesion of the soil |
b | - | width of the foundation | |
l | - | length of the foundation | |
d | - | depth of the footing bottom | |
δ | - | angle of deviation of the resultant force from the vertical direction | |
α | - | slope of the footing bottom | |
q | - | stress at the level of the footing bottom due to the foundation depth |
Literature: Canadian Foundation Engineering Manual, 4th Edition, 2006