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Showing 1 to 20 of 272 for “"liquefaction"”.
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Liquefaction and ring shear device
<p>Liquefaction flow slides triggered by earthquakes or heavy rainfall in saturated granular soils have produced great damage in landslide-prone areas worldwide. A major aspect that needs more study is how the 'residual strength' remaining in the liquefied material evolves at the high strain levels …
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Autoclave Studies of Lignite Liquefaction
… effect of time at reaction temperature on the liquefaction of lignite using hydrogen or synthesis gas was studied. A slurry contain ing 200 grams of moisture-ash-free (MAF) lignite, 100 grams of water, and 400 grams of hydrogenated anthracene oil solvent was fed into the University of North …
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Safety of foundations against liquefaction
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 1995.
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Hydrothermal Liquefaction of Municipal Sludge: Feedstock Composition, Inorganic Interactions, and Co-Liquefaction as a Dewatering Alternative
… polyfluoroalkyl substances (PFAS). Hydrothermal liquefaction (HTL) is a near-term solution for wet sludge conversion because subcritical water tolerates the 96–99% moisture content of waste activated sludge (WAS) without the need for extensive drying. Three decades of HTL research have …
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Carbon products from coal liquefaction fractions
… for the production of carbon products. Coal liquefaction samples are made under various processing conditions, e.g. temperature, pressure, solvent. Softening points, ash content and coking values of the samples are determined at WVU by ASTM methods. These samples were also examined for coke …
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Modeling of continuous coal liquefaction processes
Includes bibliographical references (pages 173-185).
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Numerical Modeling of Blast-Induced Liquefaction
A research study has been conducted to simulate liquefaction in saturated sandy soil induced by nearby controlled blasts. The purpose of the study is to help quantify soil characteristics under multiple and consecutive high-magnitude shock environments similar to those produced by large …
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Statistical modelling of earthquake-induced liquefaction
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1986.
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Liquefaction probability mapping in greater Boston
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1988.
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Wave-induced liquefaction processes in marine sediments
An investigation for seabed liquefaction induced by progressive water waves is vital for the protection of marine structures from damage to the structure foundations. The residual liquefaction in sedimentary seabed has been found to be of progressive nature and experiments have also demonstrated …
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Stochastic Analysis of Seismic Safety Against Liquefaction
Liquefaction of sand deposits during earthquakes is studied as a problem of random vibration of nonlinear-hysteretic systems. The random vibration results lead to the determination of the mean and standard deviation of the strong-motion duration of a random seismic loading with a given intensity …
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Seismic Response and Liquefaction of Saturated Sands
An analytical procedure is developed to study the liquefaction potential and seismic response of saturated sands. Method treats the saturated granular soil system as a two-phase nonlinear medium with constituent materials being the granular solid skeleton and the pore water. An elasto-plastic …
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The catalyzed liquefaction and gasification of coal.
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Chemical Engineering, 1973.
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Analysis of a supercritical hydrogen liquefaction cycle
In this work, a supercritical hydrogen liquefaction cycle is proposed and analyzed numerically. If hydrogen is to be used as an energy carrier, the efficiency of liquefaction will become increasingly important. By examining some difficulties of commonly used industrial liquefaction cycles, several …
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Liquefaction Triggering Model for Subduction Zone Earthquakes
Liquefaction is one of the major causes of ground failures during an earthquake. Recent evidence shows that the existing variants of the "simplified" liquefaction evaluation procedure lead to inaccurate results for megathrust earthquakes in subduction interfaces. To overcome this drawback and to …
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Passive Site Remediation for Mitigation of Liquefaction Risk
… proposed for non-disruptive mitigation of liquefaction risk at developed sites susceptible to liquefaction. It is based on the concept of slow injection of stabilizing materials at the edge of a site and delivery of the stabilizer to the target location using the natural groundwater flow. …
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Rheological Study of a Direct Liquefaction Feed Slurry
<p>A rheological study was made of a liquefaction startup- feed slurry. The slurry consisted of North Dakota lignite sized to 70% less then 200 mesh and a carrier solvent of an thracene oil. The rheological behavior of the slurries, o with coal concentrations of 0 to 40% at 40 C, was shown to be …
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CO-steam coal liquefaction in a batch reactor
Includes bibliographical references.
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