Further contributions to the analysis of single axially

Dissertant

al-Ani, Muhammad Majid

University

University of Technology

Faculty

-

Department

Department of Building and Construction Engineering

University Country

Iraq

Degree

Ph.D.

Degree Date

1998

English Abstract

In this study, three models for estimating the Load-Settlement relationship of axially loaded piles arc proposed.

These models are based on a regression analysis of 289S points extracted from exact well established > methods.

The first two assume a linear clastic and elasto-plastic Load-Settlement carves for rigid and compressible piles respectively, while the third covers a solution for a nonlinear behavior in which a hyperbolic function is assumed for the analysis..

All models take into account different cases namely; "floating" (friction) piles, "end bearing" piles, enlarged base pile and non-homogeneous soil conditions.

Other effects such as slippage of pile and existence of rigid stratum beneath the pile are also discussed through the models.

Kuala examples from well-known case studies are solved for each part.

In addition a comparison with other established, more exact solutions are provided.

The study transforms the load settlement behavior lo an equation form .which is easily .used to provide a check on corresponding solution from numerical analysis, and to help identifying the dimensionless parameters that control their behavior.

Design charts can be prepared rapidly using ordinary calculators for a particular soil type showing how the settlement of the pile varies with the stiffness and geometry of the pile.

Examples for preparation and use of such design charts are presented.

The solution is further extended for back analysis of panelists in order to give an estimate of the elastic properties of the soil.

Finally a discussion of the results gained from each model is presented showing die beneficial aspects of using the proposed models in understanding the behavior of piles and the effect of each variable on the control and design of piles.

Model II and HI provide a very good close agreement for providing the Load-Settlement relationship when compared with previous solutions and actual pile tests.

Main Subjects

Civil Engineering

• APA
• MLA
• AMA

Language

English

Data Type

Arab Theses

Record ID

BIM-306368