Shear strength of municipal solid waste for stability analyses

Date

2009-06-01

Author

Stark, Timothy D.
Huvaj Sarıhan, Nejan
Li, Guocheng

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This paper investigates the shear strength of municipal solid waste (MSW) using the back analysis of failed waste slopes as well as field and laboratory test results. Shear strength of MSW is a function of many factors such as waste type, composition, compaction, daily cover, moisture conditions, age, decomposition, overburden pressure, etc. These factors together with non-standardized sampling methods, insufficient sample size to be representative of in situ conditions, and limited shear displacement or axial strain imposed during the laboratory shear testing have created considerable scatter in reported results. Based on the data presented herein, large shear displacements are required to mobilize the peak shear strength of MSW which can lead to displacement incompatibility between MSW and the underlying material(s) such as geosynthetic interfaces and foundation soils. The data presented herein are used to develop displacement compatible shear strength parameters for MSW. Recommendations are presented for modeling the displacement and stress dependent strength envelope in stability analyses.

Subject Keywords

General Engineering, Earth and Planetary Sciences (miscellaneous), Soil Science, General Earth and Planetary Sciences, Pollution, General Environmental Science, Water Science and Technology, Environmental Chemistry

URI

https://hdl.handle.net/11511/40961

Journal

ENVIRONMENTAL GEOLOGY

DOI

https://doi.org/10.1007/s00254-008-1480-0

Collections

Department of Civil Engineering, Article

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Citation Formats

T. D. Stark, N. Huvaj Sarıhan, and G. Li, “Shear strength of municipal solid waste for stability analyses,” ENVIRONMENTAL GEOLOGY, pp. 1911–1923, 2009, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/40961.