Seismic Behavior and Dynamic Site Response of Municipal Solid Waste Landfill in India

Abstract

Seismic behavior of landfills need for a better understanding of the dynamic properties of municipal solid waste (MSW) and site response of MSW landfill during seismic events. This chapter presents unit weight, shear wave velocity, strain-dependent normalized shear modulus reduction, and material damping ratio relationships for Mavallipura landfill based on field testing, laboratory measurements, and validated using semi-empirical methods. In addition, one-dimensional seismic response analysis by an equivalent linear method for Mavallipura landfill, Bangalore is done using software like SHAKE2000 and DEEPSOIL. Results indicated that the MSW landfill has less shear stiffness and more amplification due to the loose filling and damping, which need to be accounted for by seismically safe MSW landfill design in India. Also, results of seismic response analyses performed by the authors and other researchers are examined to assess the impact of stiffness and height of the landfill refuse fill on the overall response.