A constitutive framework to model the undrained loading of municipal solid waste

作者：Machado Sandro Lemos^*; Vilar Orencio Monje; Carvalho Miriam de Fatima; Karimpour Fard Mehran

来源：Computers and Geotechnics, 2017, 85: 207-219.

DOI：10.1016/j.compgeo.2016.12.002

• Municipal solid waste
• Constitutive model
• Effective stress
• Undrained loading
• Stress-strain
• Pore water pressures

This paper proposes a model to represent the MSW undrained mechanical behavior, which is an extension of the previous models developed by the authors. A more comprehensive formulation for effective stress is adopted taking into account the compressibility of waste particles and the concepts embraced in the Skempton's equation for effective stress. The model reproduces the main MSW features such as high pore water pressure generation, concave upward curves and high shear strength values, even for u = sigma(3) (zero net confining stress). Model predictions showed good adherence to experimental results. MSW samples of different sources were used in the simulations.

• 出版日期2017-5