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Articles 1 - 7 of 7
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Assessing The Water Quality Benefits Of Green Infrastructure Stormwater Control Measures., Sam Abdollahian
Assessing The Water Quality Benefits Of Green Infrastructure Stormwater Control Measures., Sam Abdollahian
Electronic Theses and Dissertations
Permeable pavements systems and tree boxes are a common type of Green Infrastructure (GI) Stormwater Control Measures (SCMs) that are often used for mitigating the stormwater runoff. In this study two permeable pavement systems and a tree box installed along parking lanes of an urban street in Louisville, KY, were investigated to evaluate their performance on improving stormwater runoff quality. The water quality monitoring was accomplished by analysis of samples collected from stormwater runoff and the captured stormwater volume at the bottom of the permeable pavements’ sub-base reservoir and by a drain gauge (lysimeter) installed in the tree box. Pollutants …
Geotechnical Laboratory Characterization Of Sand-Zeolite Mixtures., Hong Shang,
Geotechnical Laboratory Characterization Of Sand-Zeolite Mixtures., Hong Shang,
Electronic Theses and Dissertations
Zeolite and sand mixture is an ideal reactive filling material for the Permeable Reactive barrier (PRB) due to its higher hydraulic conductivity and sorption capacity. This study applied three ASTM standard tests to examine the geotechnical engineering properties of ASTM 20-30 sand and zeolite (clinoptilolite) mixtures with varying zeolite mass percentages (25%, 50%and 75%). Conducted lab tests including: Proctor compaction, hydraulic conductivity in rigid wall permeameter and one-dimensional consolidation. The goals of this study were to quantify the impact of zeolite content and compactive effort on the density, conduction and compressibility of the sand-zeolite mixtures.
Macro Model For Solid And Perforated Masonry Infill Shear Walls., Farid Nemati
Macro Model For Solid And Perforated Masonry Infill Shear Walls., Farid Nemati
Electronic Theses and Dissertations
In this dissertation the performance of masonry walls enclosed by frame structures is studied and a new finite element model for these systems is presented. As part of this effort, the common modeling approaches i.e. micro-models and macro-models are briefly reviewed and their specifications are compared. Based on the findings in these comparisons, it was shown that macro modeling is the preferred modeling approach and the development of the new model is presented. The proposed model is described in detail and the calibration procedures along with the material models, used in the proposed model, are presented. To account for the …
Performing A Steady-State Seepage Analysis Using Seep/W : A Primer For Engineering Students., Matthew R. Broaddus
Performing A Steady-State Seepage Analysis Using Seep/W : A Primer For Engineering Students., Matthew R. Broaddus
Electronic Theses and Dissertations
This thesis is comprised of five independent modules that were developed to provide a primer to understanding groundwater seepage. These modules serve as the template to conduct steady-state seepage analyses through embankments utilizing SEEP/W, a finite element seepage modeling program. Module 1 and 2 are more theoretical in nature to provide the background knowledge necessary to conduct a steady-state seepage analysis, while Modules 3, 4, and 5 focus more on the application of seepage models and how they can be used to solve various groundwater seepage problems. Supplementary material, including PowerPoint presentations, handouts, and a manual on how to utilize …
Community Engagement, Environmental Education, And Public Outreach In Sustainable Engineering : A Collaborative Demonstration Project For Water Treatment Using Natural Processes And Sustainable Materials., Venkata Durga Prasad Gullapalli
Community Engagement, Environmental Education, And Public Outreach In Sustainable Engineering : A Collaborative Demonstration Project For Water Treatment Using Natural Processes And Sustainable Materials., Venkata Durga Prasad Gullapalli
Electronic Theses and Dissertations
Community engagement through environmental education for the public is an important component in the link between individual citizens, their community, and local government agencies responsible for maintaining urban recreation and park areas. Streams and waterways passing through urban areas are often misunderstood by the public in terms of whether the waterway is natural, constructed, or a combination of both. Additionally, aspects of water quality or water pollution are often obscure to the community and there are limited means to provide direct information to the public. In any case, the public are often drawn to interact with urban streams through recreation …
Artifical Neural Network Models For The Analysis Of Permeable Pavement Performance., Ata Radfar
Artifical Neural Network Models For The Analysis Of Permeable Pavement Performance., Ata Radfar
Electronic Theses and Dissertations
This dissertation is a numerical modeling study based on the findings of the two installed Permeable Interlocking Concrete Pavements (PICPs) in Louisville, KY and twenty one laboratory models. A new model derived to more accurately predict the captured surface runoff volume by the PICPs using Artificial Neural Networks (ANNs). The proposed model relates rainfall parameters and site characteristics to the runoff volume captured by the permeable pavements. The database used for developing the prediction models is obtained from the collected data of the monitored permeable pavements. The performance of the ANN-based models are analyzed and the results demonstrate that the …
Data Driven Comprehensive Assessment Of The Performance Of Stormwater Best Management Practices., Shanshan Li
Data Driven Comprehensive Assessment Of The Performance Of Stormwater Best Management Practices., Shanshan Li
Electronic Theses and Dissertations
In order to evaluate the performance of the stormwater best management practices (BMPs) installed on the Belknap campus at the University of Louisville, a comprehensive assessment on the stormwater BMPs’ the flow volume reduction, peak flow attenuation, and overflow area abatement was made. We used a two-pronged analysis based on 1) predictive modeling using data mining approach; 2) model-based hydraulic simulation. The novelty of study is that it not only assessed the stormwater BMPs’ performances on flow volume reduction, but also assessed their performance on peak flow attenuation which is neglected in previous studies and assessment practices. Flow volume reduction …