Municipal solid waste landfill site selection: a geotechnical and geoenvironmental-based geospatial approach

Assessing the physical and geotechnical properties of subsoils within an active municipal solid waste dumpsite for secured future urban growth

“…However, according to Handy [53] and Abd El Aal and Rouaiguia [28], soils with clay content <32% are likely to collapse, thus the use of deep foundation such as piers, piles as well as continuous strip footings as shallow foundation may be required in the study area since clay particles at each sampling depth at all the sampling locations was less than 32%. The activity values for all soil samples were <0.75, an indication of inactive clay of low moisture affinity [29,54]. The % silt ranged from 9.4 to 13.4% and did not follow clear trend with sampling depths.…”

“…The stability of engineering structures depends on factors such as foundation design, nature of building materials, geotechnical behaviours of receiving sub-soil amongst others [25,26]. Soil provides the needed support for engineering structure placed on it, thus the need to check the suitability of near surface soils that are used for foundation, landfill liner or as a construction materials [27][28][29][30]. In addition, the durability and strength of building materials is a function of its efficiency in response to the load placed on the near-surface soil, thus a detailed understanding of the soil properties with depths will provide needed information to avert likely engineering and environmental problems [23,29].…”

“…Soil provides the needed support for engineering structure placed on it, thus the need to check the suitability of near surface soils that are used for foundation, landfill liner or as a construction materials [27][28][29][30]. In addition, the durability and strength of building materials is a function of its efficiency in response to the load placed on the near-surface soil, thus a detailed understanding of the soil properties with depths will provide needed information to avert likely engineering and environmental problems [23,29]. For instance, Alabi [26] evaluated the geotechnical properties of residual soil to assess its suitability to bear the load of engineering structure within a residential community while Fatoyinbo et al [29] assessed residual soils within Akure metropolis in order to select those with excellent geotechnical properties for landfill liners.…”