A mathematical model and computer code have been developed to perform seismic analysis of gravity type bridge abutments supported on piles. The model is capable of conducting linear, geometric nonlinear, material nonlinear and total nonlinear analysis. It has been found that gro…
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Reservoir porosity controls the strategies for reservoir management. Porosity is the primary key to a reliable reservoir model. The most economic method of evaluating reservoir porosity on a foot-by-foot basis is from core and well log data analysis. Lateral reservoir porosity i…
This dissertation addresses two interrelated topics: interpretation of data obtained by a broadband phased three-component seismic array and development of new techniques to process and visualize these data. First, I present two techniques I developed for interactive, three-dime…
An analytical technique of integrating a bridge structure and its soil-foundation system into the complete global model is proposed for seismic soil-structure interaction analysis of pile-supported bridges. A simple yet realistic model for single piles and grouped piles is devel…
The response of soil masses during an earthquake is governed by the characteristics of the ground motions and the soil material properties. The ground motions generated during earthquakes are random and nonstationary with respect to both amplitude and frequency. Different method…
Delhi Field is a producing oil field located in northeastern Louisiana. The estimated original oil in place (OOIP) is 357 mmbo and approximately 54% of OOIP has been produced through the primary production and water-flooding. A CO2-EOR program has been implemented since November…
Earthquakes that have occurred recently across the globe in various countries including United States, Japan, New Zealand, Haiti, Turkey and Italy have brought into light the poor seismic performance of older-type, non-ductile concrete buildings. These buildings, mainly designed…
In most design problems, there are multiple schemas, or ways or orienting and organizing the knowledge content in the problem domain, and which by extension defines the range and bearing of solutions. This dissertation examines the properties of individual and clusters of schema…
Accelerated bridge construction (ABC) has become an increasingly appealing alternative to conventional cast-in-place construction (CIP) because of the benefits it offers in reducing onsite construction time and traffic impact. Maintaining joint integrity between precast componen…