Engineering:P-y method
In geotechnical civil engineering, the p-y method is a method of analyzing the ability of deep foundations to resist loads applied in the lateral direction. This method uses the finite difference method and p-y graphs to find a solution. P-y graphs are graphs which relate the force applied to soil to the lateral deflection of the soil. In essence, non-linear springs are attached to the foundation in place of the soil. The springs can be represented by the following equation:
- [math]\displaystyle{ p = ky }[/math]
where k is the non-linear spring stiffness defined by the p-y curve, y is the deflection of the spring, and p is the force applied to the spring.
The p-y curves vary depending on soil type.
The available geotechnical engineering software programs for p-y method include FB-MultiPier by the Bridge Software Institute, PileLAT by Innovative Geotechnics, LPile by Ensoft, and PyPile by Yong Technology.[citation needed]
References
- Salgado, R. (2007). "The Engineering of Foundations." McGraw-Hill, in press. (1)[yes|permanent dead link|dead link}}]
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