Effects of Oil Contamination on the Physical-Mechanical Behavior of Loess and Its Mechanism Analysis

Oil leakage will not only pollute the soil but also change its physical-mechanical behavior, and loess has complex properties in the environment of oil presence. Artificial loess contaminated by diesel oil is collected as the research object. The physical and mechanical properties of clean loess and...

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Main Authors: Shibin Zhang, Rongjian Li, Weishi Bai, Qiang Yang
Format: Article
Language:English
Published: Wiley 2021-01-01
Series:Geofluids
Online Access:http://dx.doi.org/10.1155/2021/3691549
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author Shibin Zhang
Rongjian Li
Weishi Bai
Qiang Yang
author_facet Shibin Zhang
Rongjian Li
Weishi Bai
Qiang Yang
author_sort Shibin Zhang
collection DOAJ
description Oil leakage will not only pollute the soil but also change its physical-mechanical behavior, and loess has complex properties in the environment of oil presence. Artificial loess contaminated by diesel oil is collected as the research object. The physical and mechanical properties of clean loess and contaminated loess, including liquid and plastic limits, permeability, compression properties, and compressive strength characteristics, are estimated through a series of laboratory tests under different oil contents, water contents, and dry densities. Results show that liquid limits, plastic limits, and permeability coefficient of diesel-contaminated loess decrease with the increase of oil content. The compression modulus and compressive strength of diesel-contaminated loess increase with the increase of dry density at the same oil content. Adding diesel oil, the change law of the unconfined compressive strength of contaminated loess is opposite at the two different water contents. The variation of the compression modulus and unconfined compressive strength of diesel oil-contaminated loess is basically identical at the same condition. The findings of this study would be expected to bridge the gap between theory and practice in treatment and remediation of contaminated soil in the region of oil production.
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spelling doaj-art-a8bd9ebef959471c9f20bb29282099102025-02-03T07:24:13ZengWileyGeofluids1468-81232021-01-01202110.1155/2021/3691549Effects of Oil Contamination on the Physical-Mechanical Behavior of Loess and Its Mechanism AnalysisShibin Zhang0Rongjian Li1Weishi Bai2Qiang Yang3Institute of Geotechnical EngineeringInstitute of Geotechnical EngineeringInstitute of Geotechnical EngineeringInstitute of Geotechnical EngineeringOil leakage will not only pollute the soil but also change its physical-mechanical behavior, and loess has complex properties in the environment of oil presence. Artificial loess contaminated by diesel oil is collected as the research object. The physical and mechanical properties of clean loess and contaminated loess, including liquid and plastic limits, permeability, compression properties, and compressive strength characteristics, are estimated through a series of laboratory tests under different oil contents, water contents, and dry densities. Results show that liquid limits, plastic limits, and permeability coefficient of diesel-contaminated loess decrease with the increase of oil content. The compression modulus and compressive strength of diesel-contaminated loess increase with the increase of dry density at the same oil content. Adding diesel oil, the change law of the unconfined compressive strength of contaminated loess is opposite at the two different water contents. The variation of the compression modulus and unconfined compressive strength of diesel oil-contaminated loess is basically identical at the same condition. The findings of this study would be expected to bridge the gap between theory and practice in treatment and remediation of contaminated soil in the region of oil production.http://dx.doi.org/10.1155/2021/3691549
spellingShingle Shibin Zhang
Rongjian Li
Weishi Bai
Qiang Yang
Effects of Oil Contamination on the Physical-Mechanical Behavior of Loess and Its Mechanism Analysis
Geofluids
title Effects of Oil Contamination on the Physical-Mechanical Behavior of Loess and Its Mechanism Analysis
title_full Effects of Oil Contamination on the Physical-Mechanical Behavior of Loess and Its Mechanism Analysis
title_fullStr Effects of Oil Contamination on the Physical-Mechanical Behavior of Loess and Its Mechanism Analysis
title_full_unstemmed Effects of Oil Contamination on the Physical-Mechanical Behavior of Loess and Its Mechanism Analysis
title_short Effects of Oil Contamination on the Physical-Mechanical Behavior of Loess and Its Mechanism Analysis
title_sort effects of oil contamination on the physical mechanical behavior of loess and its mechanism analysis
url http://dx.doi.org/10.1155/2021/3691549
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AT weishibai effectsofoilcontaminationonthephysicalmechanicalbehaviorofloessanditsmechanismanalysis
AT qiangyang effectsofoilcontaminationonthephysicalmechanicalbehaviorofloessanditsmechanismanalysis