SOIL-BENTONITE SLURRY TRENCH CUTOFFS
Soil-bentonite cutoff walls constructed by slurry trench methods have been employed for about 3 decades. Soil-bentonite cutoff walls are constructed by excavating a continuous narrow trench under a bentonite slurry that stabilizes the excavation. The trench is backfilled subsequently with a blend of natural soil and bentonite, thereby displacing the slurry. The completed wall acts as a barrier to lateral flow of water and most fluid pollutants. Presented are the results of various investigations made to determine the design factors relating to permeability, compressibility, and strength properties of cutoff walls. These properties are related to the composition of the backfill materials and construction methods. Data are presented on the ability of slurry trench cutoff walls to maintain their integrity under the effect of long-term permeation by various pollutants. Recommendations are made for writing specifications that will achieve required performance at the lowest cost. (AUTHOR)
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Availability:
- Find a library where document is available. Order URL: http://worldcat.org/oclc/3519342
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Corporate Authors:
American Society of Civil Engineers
345 East 47th Street
New York, NY United States 10017-2398 -
Authors:
- D'Appolonia, D J
- Publication Date: 1980-4
Media Info
- Features: Figures; Tables;
- Pagination: p. 399-417
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Serial:
- Journal of Geotechnical and Geoenvironmental Engineering
- Volume: 106
- Issue Number: GT4
- Publisher: American Society of Civil Engineers
- ISSN: 1090-0241
- Serial URL: http://ojps.aip.org/gto
Subject/Index Terms
- TRT Terms: Backfilling; Bentonite; Construction; Contaminants; Costs; Performance based specifications; Slurry trenches; Specifications; Strength of materials
- Old TRIS Terms: Barrier design; Slurry trench construction
- Subject Areas: Construction; Finance; Geotechnology; Highways;
Filing Info
- Accession Number: 00315383
- Record Type: Publication
- Report/Paper Numbers: ASCE 15372
- Files: TRIS
- Created Date: Feb 6 1981 12:00AM