Seismic Translational Failure Analysis of MSW Landfills Using Modified Pseudo-Dynamic Approach

Annapareddy, V. S. Ramakrishna; Pain, Anindya; Sarkar, Sutanu

doi:10.1061/(asce)gm.1943-5622.0000990

Cited by 30 publications

(2 citation statements)

References 25 publications

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“…Next, the change of the void ratio, β ne is related to the initial void ratio e 0 and the annual change Δ e n . According to equation (4) (Annapareddy et al, 2017), the total change amount Δ e = 1.297 in the 20-year period of the closure period, where in the initial void ratio e 0 of the seal is 4.5 according to equation (1). Therefore, the annual void ratio is distributed according to equation (5) (Hashash et al, 2015), according to the biodegradation law, and the amount of change per e and the amount of change of Δ e can be obtained as Table 4.…”

Section: Methodsmentioning

confidence: 99%

Numerical simulation of uneven settlement of municipal solid waste landfill by FLAC 3D

2021

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After the landfill site is sealed, the uneven settlement is related to the safety of reutilisation of the site, and it is critical to calculate the uneven settlement of the site without error. In this article, the soil parameter of garbage body was changed with biodegradation. Fast Lagrangian Analysis of Continua in three dimensions (FLAC 3D) numerical simulation was applied to the settlement of the landfill site closure. In calculating the settlement of landfill, the soil parameters of landfill with age were obtained by field drilling experiments. The parameters can reflect the characteristics of soil organic matter in different biodegradation stages. Finally, the uneven settlement within 20 years of the closure period was obtained by the numerical simulation taking Jinzhou Nanshan landfill as an example. The results show that the settlement with the age increases gradually, but the rate will be more and more moderate, and the maximum subsidence value in the sealing field after 20 years will be 9.11 m, 15.71% of the maximum elevation. Around the landfill slope position of uneven settlement rate is bigger, and the maximum angle of uneven settlement is up to 45°. But the middle position is small, which is close to 0°.

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Section: Methodsmentioning

confidence: 99%

Numerical simulation of uneven settlement of municipal solid waste landfill by FLAC 3D

2021

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“…The dynamic characteristics and parameters of manually prepared solid waste samples were studied by using a medium-sized cyclic triaxial tester [3,4]. Annapareddy [5], Feng [6,7], Ruan [8], and Zhu [9] used the limit equilibrium method to analyze landfill seismic stability and permanent displacement. However, at present the research on the ground motion of landfill mainly focuses on the stability and dynamic response analysis under uniform ground motion, that is, the same ground motion input is used for the whole landfill, without considering the time-space process of actual ground motion.…”

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Stability Analysis of Landfill under Multi-Point Seismic Ground Motions Considering the Effect of Leachate

Shang¹,

Sun²,

Liu³

et al. 2020

Pol. J. Environ. Stud.

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In recent years, instability of landfills occurs frequently in the process of construction, operation and closure, which poses a great threat to human life, property and living environment. Therefore, ensuring the stability of sanitary landfills is the first prerequisite for their workability [1]. Landfill is different from slope. The main form of instability failure is translational failure [2]. The influencing factors are various and include changes of mechanical parameters of landfill, mechanical parameters of liner surface, leachate water level, height of landfill, and earthquake.

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Probabilistic Stability Analysis of Helical Soil Nailed Wall Using the Monte-Carlo Simulation

Agarwal

Sharma

Pain

2021

Lecture Notes in Civil Engineering

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Seismic Translational Failure Analysis of MSW Landfills Using Modified Pseudo-Dynamic Approach

Cited by 30 publications

References 25 publications

Numerical simulation of uneven settlement of municipal solid waste landfill by FLAC 3D

Numerical simulation of uneven settlement of municipal solid waste landfill by FLAC 3D

Stability Analysis of Landfill under Multi-Point Seismic Ground Motions Considering the Effect of Leachate

Probabilistic Stability Analysis of Helical Soil Nailed Wall Using the Monte-Carlo Simulation

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