Large-scale direct shear testing of municipal solid waste

Zekkos, Dimitrios; Athanasopoulos, George; Bray, Jonathan D.; Grizi, Athina; Theodoratos, Andreas

doi:10.1016/j.wasman.2010.01.024

Cited by 95 publications

(31 citation statements)

References 13 publications

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“…The shear strength of municipal solid waste is dependent upon shear displacement, and is observed to be increased with an increase in deformation [14]. The strain in MSW was observed to be increased in reported studies [9][10][11]38] leading to high strength of MSW. During the initial stage, the stability of landfills may be influenced by an increase in unit weight and pore water pressure developed within landfill which decreased the shear strength of waste [22,31,40].…”

Section: Disha Thakur Ashok Kumar Gupta Rajiv Gangulymentioning

confidence: 98%

“…The change in the compressibility of waste changes the volume of MSW and affects the differential settlement in the landfill. The shear strength parameters get affected due to varied composition and degradation level of MSW which were considered to be most critical for the analysis of slope stability of landfill [16,18,22,[37][38][39]. The degradation of waste varies shear strength parameters as increases cohesion from 12 to 67 kPa and decreases the angle of internal friction from 38° to 24° [19,22,36,38,40].…”

Section: Disha Thakur Ashok Kumar Gupta Rajiv Gangulymentioning

confidence: 99%

“…The shear strength parameters get affected due to varied composition and degradation level of MSW which were considered to be most critical for the analysis of slope stability of landfill [16,18,22,[37][38][39]. The degradation of waste varies shear strength parameters as increases cohesion from 12 to 67 kPa and decreases the angle of internal friction from 38° to 24° [19,22,36,38,40]. However, the studies of various researchers [22,23,41] showed that the variation in c and φ values of samples did not follow any trend with the rate of degradation and similarly the effect of degradation on shear strength parameters was not following any pattern [23].…”

Section: Disha Thakur Ashok Kumar Gupta Rajiv Gangulymentioning

confidence: 99%

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Geotechnical Properties of Fresh and Degraded MSW In the Foothill of Shivalik Range Una, Himachal Pradesh

Thakur¹

2019

IJRTE

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The aim of the present study is to determine the physical and geotechnical characteristics of municipal solid waste (MSW) from an open dump site located in Una town, Himachal Pradesh (India) for the analysis of settlement and structural stability of landfill. Degraded waste was tested for different time intervals ranging from 6 months to 6 years. The physical characterization and the geotechnical tests were performed to determine the composition and the engineering properties of MSW respectively. The presence of moisture content in the fresh waste was 49.5±1.05% but for the degraded (or old) waste it varied between 39.8 to 51.6%. The specific gravity of fresh and old waste varied between 1.83±0.05 and 1.85 for 6 months old waste and 2.28 for 5-6 years old degraded waste respectively. The maximum dry density (MDD) was observed to be 4.28 kN/m2 for fresh waste at the optimum moisture content (OMC) of 78.1% and 4.47 kN/m3 for 6 months old waste and 6.25 kN/m3 for the degraded waste of 5-6 years at 80.2, 85.4% of OMC respectively. The hydraulic conductivity (k) of MSW was found to be decreasing with the degradation of MSW and the overburden pressure whereas the shear strength increased along with the degradation of the waste. The cohesion (c) and angle of internal friction (φ) increased respectively from 31.2 kPa(fresh) to 38 kPa(degraded) and 14° to 22° with the increase in waste degradation. The compression ratio of fresh waste was within the ranges of 0.19-0.29 and for degraded MSW it varied between 0.12 for 6 months old waste and 0.17 for 5-6 years old degraded waste respectively.

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Section: Disha Thakur Ashok Kumar Gupta Rajiv Gangulymentioning

confidence: 98%

Section: Disha Thakur Ashok Kumar Gupta Rajiv Gangulymentioning

confidence: 99%

Section: Disha Thakur Ashok Kumar Gupta Rajiv Gangulymentioning

confidence: 99%

See 1 more Smart Citation

Geotechnical Properties of Fresh and Degraded MSW In the Foothill of Shivalik Range Una, Himachal Pradesh

Thakur¹

2019

IJRTE

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“…Generally, stability of SWM slope was calculated on soil mechanics in past study (Koelsch, 2009;Zekkos, 2010;Bray, 2009;Towhata, 2010), however there were few data about in-situ shear property of SWM and almost all experiments were performed in laboratory on specific condition. In-situ shear property of SWM has not been solved.…”

Section: Introductionmentioning

confidence: 99%

Simple estimation method of in-situ strength of sedimentary solid waste ground

Omine

Sugimoto

2016

JGS Special Publication

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In-situ direct shear and earth pressure tests were developed for estimating strength of solid waste materials (SWM). Strength properties of solid waste materials were investigated in different sites. Strength parameters of cohesion of frictional angle are obtained from the in-situ direct shear and earth pressure tests. The in-situ earth pressure test was conducted by putting several bars in a line. Strength parameters are evaluated from test results of the in-situ earth pressure test in different embedded length of pile. Cohesion and frictional angle obtained from the in-situ direct shear and earth pressure tests are correlated respectively. The in-situ earth pressure test is very simple method. It is therefore that the strength property of solid waste materials can be estimated as an approximate value.

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“…Generally, stability of solid waste slope was calculated on soil mechanics in past study (Koelsch, 2009;Zekkos, 2010;Bray, 2009), however there were few data about in-situ shear property of solid waste material and almost all experiments were performed in laboratory on specific condition. In-situ shear property of solid waste materials has not been solved.…”

Section: Introductionmentioning

confidence: 99%

In-situ tests for slope stability of solid waste deposit

Omine

Sugimoto

Yamawaki

2015

JGS Special Publication

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Solid waste materials in improper disposal sites or illegal dumping sites contain various types of materials. Mechanical property of solid waste materials has not been clarified sufficiently due to its complex composition. In this study, in-situ direct shear and permeability tests were performed for calculating slope stability of solid waste deposit in Japan, where the large crack was occurred on the ground surface. Strength properties on solid waste material and original ground were obtained from the in-situ direct shear test. Permeability of the ground was also measured by in-situ permeability test. Influence of ground and water conditions on slope stability was discussed based on the calculation results.

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Large-scale direct shear testing of municipal solid waste

Cited by 95 publications

References 13 publications

Geotechnical Properties of Fresh and Degraded MSW In the Foothill of Shivalik Range Una, Himachal Pradesh

Geotechnical Properties of Fresh and Degraded MSW In the Foothill of Shivalik Range Una, Himachal Pradesh

Simple estimation method of in-situ strength of sedimentary solid waste ground

In-situ tests for slope stability of solid waste deposit

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