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Block Displacement for the Construction of a Chemical Waste Isolation Barrier
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English
Abstract
Groundwater supplies throughout the United States are threatened by migration of contaminants from numerous sources including solid, chemical and hazardous waste sites. Complete isolation of these sources and their corresponding high concentration migrating plumes is a major step in mitigating the danger of groundwater contamination and is often a cost-effective step in the cleanup process.
The “Block Displacement” technique has been developed for complete isolation of large tracks of contaminated ground. A full-scale demonstration was recently conducted on a 50,000 ft3 block of unconsolidated soil. The technique places an impermeable barrier around and beneath the contaminated zone. In the process, the ground is physically displaced upward by multiple well injection of a barrier material in a slurry state.
Applicability assessment requires a vigorous geotechnical investigation including monitoring the propagation of a separation from a single prenotched test well at the planned bottom barrier depth.
Authors
Citation
Brunsing, T., "Block Displacement for the Construction of a Chemical Waste Isolation Barrier," SAE Technical Paper 831267, 1983, https://doi.org/10.4271/831267.Also In
References
- Brunsing, T.P. Grube, W.E. Jr. “A Block Displacement Technique to Isolate Uncontrolled Hazardous Waste Sites,” National Conference on Management of Uncontrolled Hazardous Waste Sites Hazardous Materials Control Research Institute 1982
- Clearly, J.M. “A Method for Displaying Large Blocks of Earth,” U.S. Patent No. 4230,368 February 1979
- D'Appolonia, D.J. “Soil Bentonite Slurry Trench Cutoffs,” Journal of the Geotechnical Engineering Division, ASCE, 106, GT4 1980 339 417
- Walsh, J.J., et al. “Costs of Remedial Actions at Uncontrolled Hazardous Waste Sites,” EPA Eighth Annual Symposium on Solid and Hazardous Waste Management Cincinnati, OH 1982