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Distribution of Pressures Above the Slip Surface

The distribution of load applied to an anti-slide pile above the slip surface is determined from the magnitudes of forces P and T. Constant, triangular or trapezoidal distributions are considered (for "Anti-Slide Pile" program the distribution of active and passive forces is introduced in the "Determination of earth pressure" frame). For the passive (resisting) force P can also be considered a parabolic distribution, which is approximated for the simplification by combining triangular and trapezoidal part.

Types of distribution of load above the slip surface applied to an anti-slide pile above slip surface

Recommendation for active force distribution

  • Triangle distribution - the layers above the slip surface are made from gravel or sand
  • Rectangular distribution - the layers above the slip surface are made from fine grained soils (clay, silt)
  • Trapezoidal distribution - the layers above the slip surface are made from different types of soils