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Full-Text Articles in Geological Engineering

A Deterministic Method Of Predicting Long-Term Pile Capacity In Cohesive Soils After The Dissipation Of Excess Pore Water Pressure, Eric J. Steward Jul 2011

A Deterministic Method Of Predicting Long-Term Pile Capacity In Cohesive Soils After The Dissipation Of Excess Pore Water Pressure, Eric J. Steward

Doctoral Dissertations

Pile setup or freeze is a phenomenon where the bearing capacity of a pile increases over time both during and after the dissipation of pore pressure and the stabilization of lateral earth pressure. Driven piles gain capacity after installation because of the dissipation of excess pore pressure and soil aging. Incorporating accurate setup prediction into the design of the piles can significantly reduce the cost of many projects by reducing the size or number of required piles. Various simple, empirical mathematical models have been developed to predict pile setup. However, these models are often unreliable, resulting in very conservative designs ...


Using Conditional Probability To Predict Solar-Powered Pump-And-Treat Performance, Erica RenéE Collins Jan 2011

Using Conditional Probability To Predict Solar-Powered Pump-And-Treat Performance, Erica RenéE Collins

Masters Theses

"Green and sustainable remediation can be further environmentally friendly by using renewable energy systems in place of utility-provided power. This project includes the installation of a single-axis tracking photovoltaic (PV) array at a former dry cleaning site that is undergoing remediation under the Missouri Department of Natural Resources (MODNR) Dry cleaning Environmental Response Trust (DERT) Fund program. The PV array provided power to a positive displacement piston pump that extracted ground water from a 15 m deep monitoring well. The tetrachloroethene (PCE)-contaminated ground water was treated using granular activated carbon (GAC) units prior to discharge to the local publicly ...


Waterjet Injection Of Powdered Activated Carbon For Sediment Remediation, Chris J. Redell Jan 2011

Waterjet Injection Of Powdered Activated Carbon For Sediment Remediation, Chris J. Redell

Masters Theses

"In situ sediment remediation through waterjet-activated carbon amendment delivery is an innovative means to mitigate the dangers posed by hydrophobic organic compounds. Ease of use and applicability to inundated environments makes this technique valuable. This work made feasible low-pressure injections of a 15% (by dry weight) carbon/water slurry through a pulsating piston pump waterjet. The project fabricated nozzle tips and a unique injection apparatus comprising a quantitative system for the evaluation of bench scale models. Based on a series of iterative processes, injections of carbon were analyzed for depth and concentration. Injections varied in duration and they were made ...


Visual Inspection And Ground Penetrating Radar Investigation Of The Historical Pulaski County Poor Farm Cemetery, Ibrahim E. Ahmed Jan 2011

Visual Inspection And Ground Penetrating Radar Investigation Of The Historical Pulaski County Poor Farm Cemetery, Ibrahim E. Ahmed

Masters Theses

"This thesis is a comprehensive summary of the geotechnical investigation of the Historical Pulaski County Poor Farm Cemetery, southeast Waynesville, Missouri. This research demonstrates that unmarked graves in an abandoned historical cemetery can be located using visual site inspection and ground penetrating radar techniques.

During the course of these investigations, multiple visual site inspections of Pulaski County Poor Farm Cemetery were conducted and ground penetrating radar data were acquired. Based on the visual site inspections and the interpretation of ground penetrating radar data, a total of one-hundred and fifty-one (151) graves were identified; eighty-seven (87) of the graves were mapped ...


Thermal Modeling Of A Mechanical Integrity Test On An Underground Storage Cavern, Brandon Charles Lampe Jan 2011

Thermal Modeling Of A Mechanical Integrity Test On An Underground Storage Cavern, Brandon Charles Lampe

Civil Engineering Graduate Theses & Dissertations

The objective of this research was to describe how the transient heat transfer phenomena influences the results of mechanical integrity tests (MITs) performed on the well of an underground storage cavern in rock salt. Underground caverns have been developed in salt deposits throughout the world for the purpose of producing brine and storing compressed air, hydrocarbons, and waste products; and are a critical underground infrastructure. Despite the very low permeability of rock salt, limited volumes of stored product may diffuse out of the cavern. Additionally, underground storage caverns change in size because of salt creep, leading to difficulties in estimating ...


Characterization Of The Engineering Properties And Economic Potential Of The Transitional Clay Unit Of The Ripley Formation, Northeast Mississippi, Richard Christopher Wheeler Jan 2011

Characterization Of The Engineering Properties And Economic Potential Of The Transitional Clay Unit Of The Ripley Formation, Northeast Mississippi, Richard Christopher Wheeler

Electronic Theses and Dissertations

Expansive soils, throughout Mississippi and the U.S., have long been a source of problems within the engineering and construction industries, leading to billions of dollars in damage annually. Along with being a source of problems, the clays throughout Mississippi are also of economic importance, being mined for a variety of uses. In this study, the engineering properties of the transitional clay facies of the Ripley Formation are studied, to characterize the swell potential of the transitional clay, and to assist with the evaluation of the possible commercial uses of the soil. The transitional clay is an Upper Cretaceous unit ...


A Field Validation Of Dam Indexing Methods In Mississippi, Steven Thomas Fox Jan 2011

A Field Validation Of Dam Indexing Methods In Mississippi, Steven Thomas Fox

Electronic Theses and Dissertations

Indexing methods are applied to dam inventories throughout the United States to assist in prioritizing resources to maintain aging dam structures. Three published indexing methods and one proposed method were applied to 24 dams through Mississippi. The majority of dams in Mississippi have little to no information concerning the performance records or design specifics of a given dam. Field assessments were conducted to determine the physical condition of each dam, identify potentially deficiencies at dams, and calculate a consequence in the event of a dam failure. The results of the four indexing methods will be compared and advantages and disadvantages ...