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A hydro-bio-mechanical model for settlement and other behaviour in landfilled waste.

McDougall, John (2007) A hydro-bio-mechanical model for settlement and other behaviour in landfilled waste. Computers and Geotechnics, 34 (4). pp. 229-246. ISSN 0266 352X

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Abstract/Description

A conceptual framework for the analysis of settlement and other processes in landfilled waste in relation to coupled hydraulic, biodegradation and mechanical behaviour is presented. The hydraulic model is an unsaturated flow model. The biodegradation model is a two-stage anaerobic digestion model modified to account for enzymatic hydrolysis of solid degradable matter in relation to moisture content, product inhibition, cellulose digestibility and microbial controls. The mechanical model includes an innovative interpretation of the mechanical consequences of decomposition combined with established formulations of load and creep-induced effects to predict settlement under load and over time. A finite element implementation enables simulation of both the filling phase and leachate control practices. Finally, the formulation is tested by comparison with a large-scale laboratory waste compression test.

Item Type: Article
Print ISSN: 0266 352X
Uncontrolled Keywords: Hydro-bio-mechanical model; Landfilled waste; Unsaturated flow; Anaerobic digestion; Enzymatic hydrolysis; Finite element simulations; Filling practice; Leachate control practice; Comparison; Laboratory waste compression test;
University Divisions/Research Centres: Faculty of Engineering, Computing and Creative Industries > School of Engineering and the Built Environment
Dewey Decimal Subjects: 600 Technology > 620 Engineering > 628 Sanitary & municipal engineering
500 Science > 550 Earth sciences & geology
Library of Congress Subjects: Q Science > QE Geology
T Technology > TD Environmental technology. Sanitary engineering
Item ID: 1954
Depositing User: RAE Import
Date Deposited: 31 Jan 2008 11:33
Last Modified: 15 Feb 2013 13:42
URI: http://researchrepository.napier.ac.uk/id/eprint/1954

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