Centrifugal modeling of the bearing capacity of a waterlogged clay base under an inclined load

Conclusions

• 1. The bearing capacity of a clay base decreases markedly with increase of the angle of inclination of the load to the vertical.

• 2. For particular values of the physical and mechanical properties of clays (ϕ=18°, c=0.006 MPa, c_V <1·10⁷ cm²/yr) the following equation can be used for an approximate calculation of the bearing capacity of a plastically inhomogeneous waterlogged clay base under the effect of an inclined force on a strip footing:

  $$P_{\delta + 0} = P_{\delta - 0} K_1 /K_2 $$

  , where P_δ=0 is the bearing capacity of the base under a vertical load; K₁ is a correction coefficient, determined experimentally. Its values when δ=0, 5, 10, 20, and 30° are, respectively, 1, 0.8, 0.7, 0.5, and 0.3; K₂ is the factor of safety, K₂=1.4.

• 3. To determine the coefficient K₁, which takes into account the effect of an inclined load, it is necessary to conduct experiments with other types of soils and their states by the given method.