Graduation Semester and Year

2015

Language

English

Document Type

Dissertation

Degree Name

Doctor of Philosophy in Civil Engineering

Department

Civil Engineering

First Advisor

Xinbao Yu

Abstract

Geogrids have proven to be economical solution in improving ground conditions for construction in foundations, retaining walls, railway tracks, and pavements. Hence researchers have started studying the geogrid reinforcement in detail to understand the working of geogrid and parameters affecting it. Following the advent of faster computers and efficient algorithms researcher have started using discrete element method (DEM) to study geogrid reinforcement since DEM provides particulate level of interaction and understanding and is the closest resemblance of the physical phenomenon. However, the research works are widely spread lacking comprehensive review of factors that can affect such models. This research studies geogrid reinforcement experimentally by testing geogrid reinforced glass beads in a triaxial setup and develops a 2D DEM model to establish important effect factors. By comparing the trends of the data obtained from the experimental and numerical simulations, the study provides conclusions and recommendations.

Disciplines

Civil and Environmental Engineering | Civil Engineering | Engineering

Comments

Degree granted by The University of Texas at Arlington

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