Stress-strain behaviour and shear strength of Municipal Solid Waste (MSW)

The post-peak stress-strain behaviour in undrained shear of three different clays has been investigated by using an indirect method. This method, which is in principle similar to that used by Kallstenius (1963), consists in first compressing a clay specimen to a given post-peak strain between two parallel platens and subsequently determining its current remoulded strength by the laboratory vane method. By a repeated compression procedure, axial strains of up to 200 per cent have been attained. As the three clays tested differed widely in sensitivity, a comparison of their post-peak behaviour made clearly apparent the effect of structural breakdown on the reserve shear strength at large strains.

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Study on the Non-Linear Shear Strength Properties of Municipal Solid Waste

Geoenvironmental Engineering ◽

10.1061/9780784413432.010 ◽

2014 ◽

Cited By ~ 1

Author(s):

Zhenying Zhang ◽

Dazhi Wu ◽

Lijun Yan

Keyword(s):

Shear Strength ◽

Municipal Solid Waste ◽

Solid Waste ◽

Strength Properties ◽

Non Linear ◽

Linear Shear

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Shear Strength of Municipal Solid Waste (MSW): Beyond the Raw Values of “Cohesion” and Friction Angles

Geo-Chicago 2016 ◽

10.1061/9780784480144.026 ◽

2016 ◽

Author(s):

Jaime J. Díaz-Beltrán ◽

Juan J. Iguarán-Fernández ◽

Joan M. Larrahondo ◽

Luis A. Jaramillo

Keyword(s):

Shear Strength ◽

Municipal Solid Waste ◽

Solid Waste

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Study on the Biodegradation Strength Properties for Municipal Solid Waste with Higher Content of Organic Matter

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.71-78.918 ◽

2011 ◽

Vol 71-78 ◽

pp. 918-922

Author(s):

Zhen Ying Zhang ◽

Da Zhi Wu

Keyword(s):

Shear Stress ◽

Organic Matter ◽

Shear Strength ◽

Municipal Solid Waste ◽

Shear Strain ◽

Solid Waste ◽

Test Specimen ◽

Influence Factor ◽

Strength Properties ◽

Strength Parameters

Basing on the new developed direct shear testing instrument, the biodegradation strength properties and strength parameters of municipal solid waste with higher content of organic matter have been studied. The municipal solid waste is divided into three parts: the material that is easy to be biodegraded, reinforced material that is difficult to be biodegraded and the incompressible solid waste material. The proportions of these three parts are 80%, 5% and 15%, respectively. A series of laboratory tests have been performed for different initial void ratios and different vertical pressures applied on the test specimen. Testing results show that the initial void ratio is the main influence factor for the biodegradation strength of the municipal solid waste, the relationship between the biodegradation shear stress and the shear strain is a strain hardening curve, the biodegradation shear stress gradually increases with the shear strain. Besides, the biodegradation shear strength shows a linear relationship to the vertical pressure applied on the test specimen, and it is in accordance with the law of coulomb. According to the testing results, the biodegradation shear strength parameters of municipal solid waste are obtained. The cohesion varies from 11.5 to 24.0kPa, and the internal friction angle varies from 8.3 to 29.0 degree.

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Shear strength testing of intact and recompacted samples of municipal solid waste

Canadian Geotechnical Journal ◽

10.1139/t09-052 ◽

2009 ◽

Vol 46 (10) ◽

pp. 1133-1145 ◽

Cited By ~ 24

Author(s):

Manoj K. Singh ◽

Jitendra S. Sharma ◽

Ian R. Fleming

Keyword(s):

Shear Strength ◽

Municipal Solid Waste ◽

Solid Waste ◽

Effective Stress ◽

Deformation Behaviour ◽

Triaxial Compression ◽

Large Diameter ◽

Shear Behaviour ◽

Triaxial Tests ◽

Strength Testing

This paper presents results of shear strength testing of intact and recompacted samples of municipal solid waste (MSW). A method for in situ sampling of MSW from landfills using a push-in sampler was developed and used to obtain intact samples of MSW from a large municipal landfill. Shear strength testing of MSW was carried out using a large triaxial compression apparatus as well as a large direct shear apparatus. The results are presented in terms of cohesion intercept (c′) and angle of shearing resistance ([Formula: see text]) and are compared with those available in published literature. Based on these results and their favourable comparison with this literature, it can be concluded that meaningful shear strength parameters for MSW can be obtained using consolidated undrained triaxial tests on large-diameter intact and recompacted samples. A fairly consistent picture of the shear behaviour of MSW obtained from effective stress paths in triaxial tests appears to suggest that shear behaviour of MSW can be explained using the effective stress principle. It is suggested that recompacted samples could be used for obtaining reasonable estimates of c′ and [Formula: see text] for MSW; however, it may be necessary to use intact samples to establish the pre-failure deformation behaviour of MSW.

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