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Showing 1 to 14 of 14 for “"geoenvironmental"”.
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Geoenvironmental aspects of coal refuse-fly ash blends
The separate land disposal of coal refuse and fly ash presents difficulties throughout the Appalachian region, both in terms of disposal costs per acre and in terms of its potential environmental impacts on soil, ground water, revegetation, and slope stability. The purpose of this study was to …
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Long-term response of soils subjected to repetitive geoenvironmental loads
… of sands and fines subjected to repetitive geoenvironmental loads under various boundary conditions. The physics-inspired and data-driven approaches applied in this research can be used to enhance the existing design guidelines of geo-structures for long-term performance, serviceability, and …
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Application of the geostatistical program NOMAD-KRIBS to geoenvironmental problems
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2001.
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Asymptotic methods applied to the geoenvironmental problems of ground subsidence and soil vapor extraction
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1998.
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The Chemical Durability of Elastomeric Bituminous Geomembranes (BGMS) in Different Geoenvironmental Applications at Elevated Temperatures
… accelerated immersion tests for different geoenvironmental applications. The effects of elevated temperatures, thickness, and incubation media on the mechanical, rheological, and chemical properties of BGMs are examined. Exposure to elevated temperatures resulted in the thermo-oxidative …
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Measurement of Soil and Water-Quality Parameters to Understand Subsurface Transport Processes
… is indispensable for several hydrological and geoenvironmental processes. The accuracy of the soil moisture transport models used in these studies depends on the precise characterization of saturated and unsaturated soil properties. In this effort, we developed novel experimental methods and …
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Statistical Analysis of the Environmental Geochemistry of an Unmined Uranium Ore Deposit
… extraction site. It presents three studies on geoenvironmental media at Coles Hill. The first study discusses sampling strategies and statistical analysis to address variability in geology, hydrology and climate for baseline assessment and presents an example of such an assessment at Coles …
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Investigation of Temperature, Solution Strength, and Applied Stress Effects on Cation Exchange Processes in Geosynthetic Clay Liners
… respectively) which are all representative of geoenvironmental conditions observed in MSW landfill barrier systems. Cation exchange in the bentonite component of all conditioned Na-B GCL specimens was quantified by measuring the bound cation (BC) complexes and cation exchange capacities (CEC) …
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Facultative Bioreactor Landfill: An Environmental and Geotechnical Study
A relatively new concept of Municipal Solid Waste treatment is known as bioreactor landfill technology. Bioreactor landfills are sanitary landfills that use microbiological processes purposefully to transform and stabilize the biodegradable organic waste constituents in a shorter period of time. …
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The Impact of a Planar Drainage Geocomposite in Unsaturated Soil
The effects of infiltration in geoenvironmental systems characterized by unsaturated soils subject to occasional significant precipitation events has been a subject of concern as practitioners look for improved methods to reduce pressures and divert water from foundations, mechanically stabilized …
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Dimensional Stability of Geosynthetic Clay Liners in Landfill Applications
<p>An investigation was conducted related to the dimensional stability of geosynthetic clay liners (GCLs) in landfill applications. Multiple occurrences of panel separation of overlap seams in GCLs have been documented; however, explanation for the relative contribution of various mechanisms …
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Long-Term Performance of HDPE Geomembranes as Landfill Liners
High density polyethylene (HDPE) geomembranes are normally used as part of a composite liner for waste containment facilities such as municipal solid waste (MSW) landfills and heap leach pads. Field conditions, which include physical stresses on the geomembrane, elevated operating temperatures, and …