LPILE Manual – Lpile is a special purpose program that can analyze a pile or drilled shaft under lateral loading. The program computes. User’s Manual for LPile (Using Data Format Version 9). A Program to Analyze Deep Foundations Under Lateral Loading. by. William M. Isenhower, Ph. D. User’s Manual forLPile, Version 6 A Program for the Analysis of Deep Foundations Under Lateral Loading.

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Thanks Fixedearth for uploading that chart about estimating soil lateral capacity. The program uses LPile for lateral analyses and also does other analyses. So far, I have used Lateral Foundation on Silo foundation support, sign support, short span bridge, retaining wall on pier foundation and 3 story residence.

The p-y, t-z q-w and t-r curves may be generated internally ,emplyoing recommnendations ,anual technical literature, or may be entered manually by the user.

Is there a book that you recommend, that I can get these tables and info, for soil classification, from? A set of distributed lateral loading may be applied anywhere along the length of the pile. I don’t know why I didn’t think of joining this forum any earlier, but thanks to all of you, now I feel lpiile I have a support system! Loading may be specified as constant or varying linearly with depth.

LPILE Manual

This book explains SPT values and analysis of laterally loaded piles and piers. A special subroutine effectively incorporates the influence of layered soils.


We’ve never had the geotech run the program. Version 5 allows the user to define multiple sections with nonlinear bending properties.

LPILE Plus for Windows: Technical Manual by Lymon C. Reese | LibraryThing

Product overview is as following. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework. What’s the point of getting them though, the geotech would just use the lower bound values anyways.

These are from “Soil Engineering: The user may thus observe the detailed behavioral measurements of any portion of the depth of each pile sub-group. L-Pile Input Data The help manual should list all the soil conditions that are available. N is the number of blows per foot I believe. The program can internally compute the deflection, bending moment, shear, and soil resistance as a function of depth for each pile.

Testing, Design and Remediation”, F. I will definitely reach for those books. I have seen some geotech reports where they have a table with all the info I need for L-Pile is in it, which was really convenient and helpful, but recently, I have recieved two reports that didnt have that. I usually use the soft clay option, being more conservative, of course.

Lateral Foundation program uses beam on elastic foundation method Hetenyi with lateral subgrade modulus values. It is very complex. My second questions is, where in a geotech report can I get the cohesion, and unit weight of the soil? That and a soil structure interaction class is really beneficial. On Clayey sites they give similar results.

User-defined multipliers are provided to increase or reduce the soil resistance p-y curves at any points along the length of the pile.


You should try this program: Posting Guidelines Promoting, selling, recruiting, coursework and thesis posting is forbidden. The help manual should list all the soil conditions that are available. Unfortunately, I am in a very bad position!! Several pile lengths may be automatically checked by the program in order to help the user produce a design with an optimum pile penetration.

My first questions is, I dont quite see all classes of soil in L-pile, so what can I use for what?

L-Pile Input Data Darn. The piles may lpiel installed vertically or on a batter and their heads may be fixed, pinned, or elastically restrained by the pile cap.

Red Flag This Post Please let us know here why this post is inappropriate. The program wil generate internally the nonlinear response of the soil, in the form of t-z and q-q curves for axial loading, in the form of p-y curves for lateral loading. In this case I use it as sand. L-Pile Input Data Thank you for your help.

LPILE Plus has capabilities to compute the ultimate-moment capacity of a pile’s section and can provide design information for rebar arrangement. I have been doing a lot of online researching and reading, so hopefully I can pick it up fast, but it is still a lot of pressure!