Browsing Theses - Geological Engineering by Title
Now showing items 1-20 of 41
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ACOUSTIC EMISSIONS ANALYSIS AND 2-D P-WAVE TOMOGRAPHY ALONG A ROUGH LABORATORY FAULT UNDERGOING STICK-SLIP CYCLES
(2018)The distributions and magnitudes of seismicity within fault systems could be highly influenced by the heterogeneity of shear stress field according to the geometric structure, fractures and asperities. However, the ... -
Assessing the Chemical and Physical Characteristics of Aged Recycled Concrete Aggregate in Road Construction
(2018-05-31)EXECUTIVE SUMMARY The use of recycled concrete aggregates (RCA) in pavement construction applications is well established and successful, particularly its use as a granular and/or stabilized base course. However, leaching ... -
Assessing the Life Cycle Benefits of Recycled Material in Road Construction
(2016-10-11)Executive Summary There is interest in determining and validating the environmental and economic benefits of incorporating recycled materials into road construction using life cycle assessments (LCA) and life cycle cost ... -
Beneficial Use of Dredged Materials in Great Lakes Commercial Ports for Transportation Projects
(2015-04-02)1.1 . Scope This chapter briefly introduces the problems and opportunities associated with dredged material DM) management in the Great Lakes region and historical options for beneficial use of DM. The overall objective ... -
COUPLED HEAT AND MOISTURE TRANSFER IN UNSATURATED SOIL FOR THE MODELING OF SHALLOW HORIZONTAL GROUND LOOPS
(2014-01-03)INTRODUCTION In recent decades, ground-source heat pump (GSHP) systems have received considerable attention as an energy efficient technology for residential and commercial heating and cooling. Approximately 50,000 GSHP ... -
DEVELOPMENT AND ANALYSIS OF THREE APPROACHES FOR GCL DESICCATION CYCLING
(2014-08-22)Geosynthetic clay liners (GCLs) are hydraulic barriers that contain of a thin layer of Nabentonite clay encased by two geotextiles and are held together by needle-punching fibers or glue. Na-bentonite, mainly comprised ... -
District-Scale Geothermal System Performance Evaluation using Thermodynamic and Environmental Analysis
(2019)The focus of the work presented in this thesis aims to improve geothermal heat system efficiency by investigating subsurface thermal properties that influence system performance over the lifetime of the system, as well ... -
District-Scale Ground Heat Exchange Performance with Fiber Optic Distributed Temperature Sensing
(2018-01-03)Chapter 1: Introduction Ground-source heat pumps (GSHP) systems have great potential as an energy-efficient alternative to conventional space heating and cooling systems. The basic principal behind GSHP technology is ... -
Drainage Characteristics of Recycled Materials for Mechanically Stabilized Earth Walls
(2021-05)With the expansion of transport, commercial, and residential infrastructure to support the needs of a growing populous, greater amounts of construction materials are required. These aspects place increased amounts of stress ... -
DURABILITY PERFORMANCE OF CEMENTITIOUSLY STABILIZED LAYERS
(2012-05-20)The ability to retain stability and integrity over years of exposure to the destructive forces of weathering is one of the most important aspects of cementitiously stabilized layers (CSL) in pavement design. However, the ... -
Effect of Ammonium on the Hydraulic Conductivity of Geosynthetic Clay Liners and Measurement in the Exchange Complex of Bentonite
(2013-08-25)Geosynthetic clay liners (GCLs) are hydraulic barriers that consist of a thin layer (<10 mm) of sodium bentonite clay encased by geotextiles or geomembranes held together by needle punching or glue. Sodium bentonite, mainly ... -
THE EFFECTS OF CLIMATIC CONDITIONS AND BRICK CONTENT ON RECYCLED ASPHALT PAVEMENT AND RECYCLED CONCRETE AGGREGATE AS UNBOUND ROAD BASE
(2012-12-23)This study evaluates the use of recycled concrete aggregate (RCA) and recycled asphalt pavement (RAP) as an unbound road base. This investigation looked at the climatic behavior (i.e., temperature effects, wet/dry cycling) ... -
EVALUATING THE METHODOLOGY AND PERFORMANCE OF
(2013-08-25)Compaction of backfill in confined spaces on highway projects is often performed with small vibratory plates, based solely on the experience of the contractor, leading to inadequate compaction. As a result, the backfill ... -
Field and Laboratory Measurement of Radon Flux and Diffusion for Uranium Mill Tailings Cover Systems
(2016-10-11)Disposal Facilities for uranium mill tailings have been constructed as required by the Uranium Mine Tailing Radiation Control Act (UMTRCA) of 1978. Nearly all of these facilities rely on a low-permeability, compacted clay ... -
GEOMECHANICAL ANALYSIS OF THE GEOTHERMAL RESERVOIR AT SAN EMIDIO, NEVADA AND FRACTURE TOUGHNESS ANISOTROPY OF EGS COLLAB TESTBED ROCKS
(2022-05)The WHOLESCALE (Water and Hole Observations Leverage Effective Stress Calculations and Lessen Expenses) project is aiming to simulate the spatial distribution and temporal evolution of stress throughout the geothermal ... -
Impact of Increasing Freight Loads on Rail Infrastructure from Fracking Sand Transportation
(2014-01-03)The increased use of the hydraulic fracturing technique, used extensively in the United States, for oil and natural gas extraction, has significantly expanded the frac sand market and impacted freight rail corridors. This ... -
Impacts of Changing Frozen Ground Regimes on Groundwater Recharge
(2021-06)The spring snowmelt accounts for a large percentage of annual groundwater recharge in northern latitudes. Many factors control the proportion of snowmelt that becomes groundwater or runoff, including the volume of snow, ... -
INFLUENCE OF COUPLING EROSION AND HYDROLOGY ON THE LONG-TERM PERFORMANCE OF ENGINEERED SURFACE BARRIERS
(2012-08-26)The main goal of this study was evaluate design strategies that couple erosion and hydrology for barriers of low level radioactive waste (LLRW) disposal facilities. This objective was met by conducting long-term (1000 yr) ... -
Investigation of Non-Uniform Erosion at the Kenosha Sand Dunes in Wisconsin
(2022-08-31)Coastal erosion is both a natural and anthropogenically induced earth process that can be costly to landowners, communities, and valuable ecosystems. Often, it is a complex issue that can occur at variable rates in both ... -
Leaching from Roadways Stabilized with Additive Coal Combustion Products (CCPs): Data Assessment and Synthesis
(2015-05-17)Approximately 37% of the electrical power used in the United States is generated by coal-fired power plants. Air pollution control systems installed on coal-fired power plants collect solid byproducts of coal combustion, ...