Assessing the Effects of Rey-Sari Oil Pipeline on the Environment Using Environmental Geotechnics Parameters
2020
Naeimi, Maryam | Haddad, Abdolhosein | Nokandeh, Saber | Zandifar, Samira | Lashgari, Ali
Oil pollution in the pipelines transporting petroleum products is an inevitable consequence of population growth and industrialization of communities. In addition to negative environmental effects such as groundwater and soil contamination, it causes changes in the geotechnical properties of local soil. Changes in soil engineering properties can lead to soil rupture and poor performance of transmission lines. Therefore, this study intended to assess the effects of the oil pipeline in the north of Iran on the environment using environmental geotechnic parameters during operation. By analyzing the Iranian matrix, it was found that there were 5 negative effects and consequences in the row and column. The consequences in the column were related to the diversion of the river, creating dams, and spinning, while in the row, these were related to landslides and soil contamination. The results of laboratory studies to investigate the effect of soil contamination on geotechnical parameters showed that the uniaxial strength of samples is decreased by 22%. In addition, the analysis of soil rupture by PLAXIS software showed that by changing the angle of the reinforcements from 20 to 23 degrees, the slope reliability of the soil decreases to less than the minimum reliability in the regulations. Finally, it was suggested that in order to reduce the negative effects and consequences of the projects, the pipelines should not be crossed through forested and sloping areas as much as possible.
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