Compacted Soil Liner Interface Strength Importance
- Authors
- Stark, Timothy D.; Choi, Hangseok; Lee, Chulho; Queen, Brian
- Issue Date
- 4월-2012
- Publisher
- ASCE-AMER SOC CIVIL ENGINEERS
- Keywords
- Slope stability; Landfills; Geomembranes; Geosynthetics; Compacted soil liner; Geosynthetic lined slopes; Interface shear strength
- Citation
- JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING, v.138, no.4, pp.544 - 550
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF GEOTECHNICAL AND GEOENVIRONMENTAL ENGINEERING
- Volume
- 138
- Number
- 4
- Start Page
- 544
- End Page
- 550
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/108809
- DOI
- 10.1061/(ASCE)GT.1943-5606.0000556
- ISSN
- 1090-0241
- Abstract
- This paper describes an interesting slope failure in a liner system of a municipal solid waste containment facility during construction because the sliding interface is not the geomembrane (GM)/compacted low-permeability soil liner (LPSL) but a soil-soil interface within the LPSL. Some of the lessons learned are as follows: (1) compaction of the LPSL should ensure that each lift is kneaded into the lower lift so a weak interface is not created in the LPSL; (2) the LPSL moisture content should be controlled so it does not exceed the specified value, for example 3-4% wet of optimum, because it can lead to a weak interface in the LPSL; (3) drainage material should be placed over the GM from the slope toe to the top to reduce the shear stresses applied to the weakest interface; and (4) equipment should not move laterally across the slope if it is unsupported but up the slope while placing the cover soil from bottom to top. DOI: 10.1061/(ASCE)GT.1943-5606.0000556. (C) 2012 American Society of Civil Engineers.
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Collections - College of Engineering > School of Civil, Environmental and Architectural Engineering > 1. Journal Articles
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