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LPILE
LPILE is a special-purpose and internationally recognized computer program based on rational procedures for analyzing a pile under lateral loading using the p-y method. LPILE solves the differential equation for a beam-column using a finite difference approach. The program computes deflection, bending moment, shear force and soil response over the length of the pile.
Nonlinear lateral load-transfer from the foundation to the soil is modeled using p-y curves generated internally using published recommendations for various types of soils, or user-inputted p-y curves. Specialized procedures are also available for computing p-y curves for layered soils and rocks.
Downloads
p-y Curves
Various built-in p-y curves including:
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Soft Clay (Matlock).
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API Soft Clay With User-defined J.
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Sand (Reese | API).
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Liquified sand (Rollins | Hybrid Model).
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Silt (Cemented c-φ).
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Stiff Clay with or without free-water (Reese).
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Modified Stiff Clay without free-water.
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Weak rock (Reese).
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Strong rock (Vuggy Limestone).
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Massive Rock.
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Piedmont Residual.
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Loess.
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Elastic Subgrade.
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User-input p-y curves.
Boundary Conditions
Specify conditions at the pile head and/or pile tip including,
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Free pile-head
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Pinned pile-head with sway
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Fixed pile-head with sway
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Elastically restrained with or without sway
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Lateral and/or rotational spring at pile-tip
See response of pile under lateral or bending moment, or specify lateral displacement or rotation at pile-head.
Output
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Pile bending moment, shear force, mobilized sectional properties, or curvature of piles under each load case, and more are outputted for each example.
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Detailed printer-friendly generated output files report all influencing parameters used for computation of internally generated p-y curves, deflection, bending moment, shear, mobilized soil reaction, moment-curvature, interaction diagram, and more, with the option to to export all results into Microsoft Excel.
