Calculate Coulomb active pressure coefficient Ka including wall friction δ, wall batter α, and backfill slope β. More general than Rankine. Typical wall friction δ = (1/2 to 2/3)φ for concrete on soil.
2D stress state at a point. All stresses in MPa.
Enter the values for the patient or scenario you are assessing. Calculate Coulomb active pressure coefficient Ka including wall friction δ, wall batter α, and backfill slope β. More general than Rankine. Typical wall friction δ = (1/2 to 2/3)φ for concrete on soil. Use the coulomb pressure result to inform your clinical assessment.