Geotechnical Evaluation of Diesel Contaminated Clayey Soil
| Autor: | Pamela García Ramírez, Christian E. Hernández-Mendoza, Omar Chávez Alegría |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Technology
Suction QH301-705.5 QC1-999 0211 other engineering and technologies 02 engineering and technology 010501 environmental sciences 01 natural sciences diesel Diesel fuel environmental geotechnics Shear strength (soil) Friction angle Cohesion (geology) General Materials Science Geotechnical engineering Biology (General) QD1-999 Instrumentation 021101 geological & geomatics engineering 0105 earth and related environmental sciences Fluid Flow and Transfer Processes Physics Process Chemistry and Technology General Engineering clay geotechnical properties Contamination Engineering (General). Civil engineering (General) Soil contamination Computer Science Applications Chemistry contaminated soil Soil water Environmental science TA1-2040 |
| Zdroj: | Applied Sciences Volume 11 Issue 14 Applied Sciences, Vol 11, Iss 6451, p 6451 (2021) |
| ISSN: | 2076-3417 |
| DOI: | 10.3390/app11146451 |
| Popis: | Soil contamination by different hydrocarbons has rapidly expanded worldwide, surpassing the self-purification capacity of soils and increasing the number of contaminated sites. Although much effort has been devoted to study the effects of diesel contamination on the geotechnical properties of soil, there is still limited available information about it. Moreover, there is no available information about the maximum diesel retention that soil can have and its effect on the geotechnical behavior of the soil. Thus, in this paper, we determined the maximum diesel retention by an unsaturated clayey soil and evaluated the impact of diesel contamination on its geotechnical properties. The results showed that the soil could only retain 12.6% of the added diesel and the excess was expulsed. At such a diesel concentration, the saturation rate of the soil was lower than 80%. Diesel contamination increased the plasticity and the internal friction angle of the soil, while its cohesion was considerably decreased. It should be noted that the matric suction of contaminated soil was lower than the one obtained for natural soil. However, its osmotic suction was considerably higher. This indicates that osmotic suction must be considered to evaluate the shear strength of contaminated soils. |
| Databáze: | OpenAIRE |
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