Assessing the Impacts of Landfills on Environment using Geotechnical Factors, Case study: Landfill of Quchan
2021
Naeimi, Maryam | Haddad, Abdolhosein | Dehestani, Hojat | Zandifar, Samira
Increased waste production due to population growth and improper landfilling is one of the most significant problems in urban communities. Environmental impact assessment is one of the tools that has been introduced to predict and reduce the destructive and harmful effects of construction projects. Therefore, in the present study, the impacts of unprincipled exploitation of Quchan’s landfill on the environment (EIA) was assessed using existing reports and satellite images, field studies, and considering the influential factors of environmental geotechnics in Iranian matrix. Analyzing the Iranian matrix shows that the number of effects and consequences of the negative algebraic mean is equal to 3 and 5, respectively. However, the negative effect and consequence less than -3.1 in the column and row are related to leveling and ground preparation, bed rupture and wall stability, respectively. More investigation on geotechnical parameters indicated that the factor of safety (FS) of gravel walls needs improvement. It was shown that in Quchan’s landfill, in case of excavation with a slope of less than 35 degrees and excavation height of about 4 meters, the existing trenches will not slip. Therefore, the necessary modification and improvement is necessary for the wall retaining and appropriate results and solutions have been provided to improve the conditions.
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