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Articles 1 - 8 of 8
Full-Text Articles in Geotechnical Engineering
Data Sheet For Vane Shear Testing In Soil-Bentonite Cutoff Wall, Jeffrey C. Evans
Data Sheet For Vane Shear Testing In Soil-Bentonite Cutoff Wall, Jeffrey C. Evans
NSF Soil-Bentonite Slurry Trench Cutoff Wall Datasets
This data sheet shows the measurements taken from vane shear tests in a soil-bentonite slurry trench cutoff wall. The vane obtained for the test was built in accordance to the ASTM standards of designation 2573. Due to the softness of the clay, to ensure the feasibility of acceptable torque resolution, the vane’s diameter, shaft diameter, and vane height at 100 mm, 16.5 mm, and 250 mm respectively were the largest acceptable sizes to use from the abovementioned standards.
Data Sheet For Marchetti Dilatometer In Soil-Bentonite Cutoff Wall, Jeffrey C. Evans
Data Sheet For Marchetti Dilatometer In Soil-Bentonite Cutoff Wall, Jeffrey C. Evans
NSF Soil-Bentonite Slurry Trench Cutoff Wall Datasets
This data sheet shows the measurements taken using a Marchetti dilatometer in a soil-bentonite slurry trench cutoff wall for the purpose of finding the in situ lateral stresses. There are several data sets within the data sheet. Each set is labelled with the time, date, and location along the cutoff wall. The transverse orientation is perpendicular to the wall alignment and the longitudinal orientation is parallel to the wall alignment.
Design And Evaluation Of Iot-Enabled Instrumentation For A Soil-Bentonite Slurry Trench Cutoff Wall, Jeffrey C. Evans, Alan Marchiori, Yadong Li
Design And Evaluation Of Iot-Enabled Instrumentation For A Soil-Bentonite Slurry Trench Cutoff Wall, Jeffrey C. Evans, Alan Marchiori, Yadong Li
Faculty Journal Articles
In this work, we describe our approach and experiences bringing an instrumented soil-bentonite slurry trench cutoff wall into a modern IoT data collection and visualization pipeline. Soil-bentonite slurry trench cutoff walls have long been used to control ground water flow and contaminant transport. A Raspberry Pi computer on site periodically downloads the sensor data over a serial interface from an industrial datalogger and transmits the data wirelessly to a gateway computer located 1.3 km away using a reliable transmission protocol. The resulting time-series data is stored in a MongoDB database and data is visualized in real-time by a custom web …
Experimental Study Of Hydraulic Conductivity Of A Soil-Bentonite Cutoff Wall, Landon Crawford Barlow
Experimental Study Of Hydraulic Conductivity Of A Soil-Bentonite Cutoff Wall, Landon Crawford Barlow
Master’s Theses
Soil-bentonite (SB) cutoff walls are commonly employed in the US to control groundwater flow and subsurface contaminant migration. In these applications, both the short-term (as built) integrity of the barrier and the potential for degradation in the integrity of the barrier over time are of critical importance. Although many laboratory studies have been conducted to investigate the performance of SB cutoff walls as hydraulic barriers and the various factors affecting this performance, field investigations are scarce. With support from the National Science Foundation, a 200 m long, 7 m deep, and 0.9 m wide SB cutoff wall has been designed, …
Restricted Salt Diffusion In A Geosynthetic Clay Liner, Michael A. Malusis, Jong Beom Kang, Charles D. Shackelford
Restricted Salt Diffusion In A Geosynthetic Clay Liner, Michael A. Malusis, Jong Beom Kang, Charles D. Shackelford
Faculty Journal Articles
No abstract provided.
Membrane Efficiency Of A Dense Prehydrated Gcl, Michael A. Malusis, Akmal Daniyarov
Membrane Efficiency Of A Dense Prehydrated Gcl, Michael A. Malusis, Akmal Daniyarov
Other Faculty Research and Publications
No abstract provided.
Chemical Compatibility Of Model Soil-Bentonite Backfill Containing Multiswellable Bentonite, Michael A. Malusis, Matthew D. Mckeehan
Chemical Compatibility Of Model Soil-Bentonite Backfill Containing Multiswellable Bentonite, Michael A. Malusis, Matthew D. Mckeehan
Faculty Journal Articles
The objective of this study was to evaluate the chemical compatibility of model soil-bentonite backfills containing multiswellable bentonite (MSB) relative to that of similar backfills containing untreated sodium (Na) bentonite or a commercially available, contaminant resistant bentonite (SW101). Flexible-wall tests were conducted on consolidated backfill specimens (effective stress =34.5 kPa) containing clean sand and 4.5–5.7% bentonite (by dry weight) using tap water and calcium chloride (CaCl2) solutions (10–1,000 mM) as the permeant liquids. Final values of hydraulic conductivity (k) and intrinsic permeability (K) to the CaCl2 solutions were determined after achieving both short-term termination criteria as …
Compressibility And Hydraulic Conductivity Of Zeolite-Amended Soil-Bentonite Backfills, Catherine Hong, Charles D. Shackelford, Michael A. Malusis
Compressibility And Hydraulic Conductivity Of Zeolite-Amended Soil-Bentonite Backfills, Catherine Hong, Charles D. Shackelford, Michael A. Malusis
Faculty Journal Articles
The effect of zeolite amendment for enhanced sorption capacity on the consolidation behavior and hydraulic conductivity, k, of a typical soil-bentonite (SB) backfill for vertical cutoff walls was evaluated via laboratory testing. The consolidation behavior and k of test specimens containing fine sand, 5.8 % (dry wt.) sodium bentonite, and 0, 2, 5, or 10 % (dry wt.) of one of three types of zeolite (clinoptilolite, chabazite-lower bed, or chabazite-upper bed) were measured using fixed-ring oedometers, and k also was measured on separate specimens using a flexible-wall permeameter. The results indicated that addition of a zeolite had little impact …