Lateral response of a monopile in sand

The program predicts the load-displacement and moment-rotation response of a monopile (with L/D < 5) subjected to an eccentric lateral load. The methodology follows that outlined in:

Wang, H., Lehane B.M., Bransby, M.F., Wang, L.Z., Hong, Y. and Askarinejad, A. (2023). Lateral behavior of monopiles in sand under monotonic loading. Ocean Engineering, 277, 114334.

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The ultimate lateral geotechnical capacity is also computed using the formulation in the following publication:

Wang, H., Lehane B.M., Bransby, M.F., Wang, L.Z. and Hong, Y. (2020). A simple approach for predicting the ultimate lateral capacity of a rigid pile in sand. Geotechnique Letters, 10, 429-435.

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Scope and limits

• Sand or sandy soils — the average I_c over the embedded length must be below 2.2. The program rejects clay or silty profiles automatically.
• Short piles with L/D less than 5. For higher aspect ratios, the program issues a warning as the assumption of a short pile may be invalid.
• No load or material factors are applied. Bending stresses in the monopile section are not checked.