Acceptance Sampling for Clay Liner Design

by Kingsley Harrop-Williams, BDM Corp, McLean, VA, USA,

Document Type: Proceeding Paper

Part of: Geotechnical Practice for Waste Disposal '87


The assurance of the quality of constructed clay liners has been a problem for geotechnical engineers. Compliance with minimum standards is necessary to ensure the liner performance capability. In this paper, using a probabilistic description of the permeability of clay liners developed from considerations of the heterogeneity of the soil, confidence levels associated with possible ranges of the permeability are established. A sampling plan based on these confidence levels is then developed to allow the designer to determine the number of samples needed to be taken and the design permeability necessary to satisfy the requirements of the regulators and minimize his loss.

Subject Headings: Clay liners | Soil analysis | Clays | Confidence intervals | Permeability (soil) | Hazardous wastes | Statistics | Waste disposal

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