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Characterization of Cement-Stabilized Clay Using Experimental and Analytical Techniques
(2015-12)
Problematic soils such as soft, compressible, collapsible, or expansive soils are widespread throughout the world and are often becoming unavoidable due to the continuous expansion of societies. Soil improvement techniques ...
A Comprehensive Investigation on Microscale Properties and Macroscopic Behavior of Natural Expansive Soils
(2012)
Understanding the complicated behavior of expansive soil requires in-depth exploration of microscopic phenomena under varying situations, especially when the soil stays unsaturated and experiences swell-shrink cycles. This ...
Determination and Prediction of Products of Trace Metal Removal in Laboratory and Field Scale Vertical Flow Bioreactors
(2016-05)
Mine drainage is characterized by elevated concentrations of dissolved iron, sulfate, and trace metals and generally exhibits an acidic pH. These constituents, particularly trace metals, can pose serious risks to both ...
Assessing Impacts of Precipitation and Parameter Uncertainty on Distributed Hydrologic Modeling
(2013)
Distributed hydrologic models, based on conservation laws, simulate the flow of water over and through the land surface in response to forcing from precipitation, transpiration, and evaporation. Conservation laws provide ...
UNDERSTANDING ULTIMATE SHEAR BEHAVIOR OF PRESTRESSED CONCRETE GIRDER BRIDGES AS A SYSTEM THROUGH EXPERIMENTAL TESTING AND ANALYTICAL METHODS
(2017-07)
A prestressed concrete bridge is a complex system. The interconnectivity of several girders, a deck, and secondary elements such as diaphragms makes their behavior difficult to represent. Additionally, the shear behavior ...
Iron Transport and Removal Dynamics in the Oxidative Units of a Passive Treatment System
(2016-12)
Abstract
Mine drainage is threat to water systems in legacy mining districts as elevated concentrations of dissolved iron, sulfate, and trace metals have an unmitigated impact on water quality. Changes in pH due to ...
DEVELOPMENT AND EVALUATION OF AN ADVANCED REGIONAL AND GLOBAL HYDROLOGICAL PREDICTION SYSTEM ENABLED BY SATELLITE REMOTE SENSING, NUMERICAL WEATHER FORECASTING, AND ENSEMBLE DATA ASSIMILATION
(2013-12)
This dissertation advanced the traditional hydrological prediction via multi-sensor satellite remote sensing products, numerical weather forecasts and advanced data assimilation approach in sparsely gauged or even ungauged ...
MECHANISTIC INPUT PARAMETERS AND MODEL CALIBRATION FOR DESIGN AND PERFORMANCE EVALUATION OF FLEXIBLE PAVEMENTS IN OKLAHOMA
(2017-12)
The Mechanistic-Empirical Pavement Design Guide (MEPDG) – a product of research and experience involving more than 20 years of traffic, climate and materials data from different regions in the U.S. – has elevated pavement ...
In Situ Testing and its Application to Foundation Analysis in Fine-Grained Unsaturated Soils
(2016-12-16)
The in situ test is an important part of a geotechnical engineer’s arsenal. Currently, there are no established methods for interpreting results of in situ tests in unsaturated soils. The difficulty in interpreting in situ ...
Characterization and Prediction of Flash Flood Severity
(2017-05)
Flash floods, a subset of floods, are a particularly damaging natural hazard worldwide due to their multidisciplinary nature, difficulty in forecasting, and fast response that limits emergency responses. The purpose of ...