Further contributions to the analysis of single axially

مقدم أطروحة جامعية

al-Ani, Muhammad Majid

الجامعة

الجامعة التكنولوجية

الكلية

-

القسم الأكاديمي

قسم هندسة البناء و الإنشاءات

دولة الجامعة

العراق

الدرجة العلمية

دكتوراه

تاريخ الدرجة العلمية

1998

الملخص الإنجليزي

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.

التخصصات الرئيسية

الهندسة المدنية

• APA
• MLA
• AMA

لغة النص

الإنجليزية

نوع البيانات

رسائل جامعية

رقم السجل

BIM-306368