Physical Modelling of Axial Compressive Bearing Capacity of Instrumented Piles in Oil-Contaminated Sandy Soil

Mohammadi, Amin; Ebadi, Taghi; Boroomand, Mohammad Reza

doi:10.1007/s40996-019-00279-7

Cited by 6 publications

(13 citation statements)

References 45 publications

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“…Based on GB/T 50123-2019, the plastic limits and liquid limits of each oilcontaminated loess corresponded to 2 and 17 mm used as the water content, respectively. Permeability tests were conducted on the clean loess and diesel-contaminated loess with different oil contents (n = 0, 2%, 4%, 8%, 12%, and 16%) and dry densities (ρ d = 1:35, 1.45, and 1.55 g/cm 3 ), and the specimen size was Φ61:8 mm × 40 mm.…”

Section: Methodsmentioning

confidence: 99%

“…Figure 5 illustrates that the permeability coefficient of diesel-contaminated loess decreases gradually with the increase of oil content at the same dry density. When the oil content is low (n < 4%), the permeability coefficient of loess contaminated by diesel oil greatly decreases, and the 5 Geofluids maximum reduction is about 93% at the dry density of 1.45 g/cm 3 . The decrease of the permeability coefficient of diesel-contaminated loess is relatively small at the dry density of 1.55 g/cm 3 , when the oil content is more than 4%.…”

Section: Permeability Of Contaminated Loessmentioning

confidence: 99%

“…When the oil content is low (n < 4%), the permeability coefficient of loess contaminated by diesel oil greatly decreases, and the 5 Geofluids maximum reduction is about 93% at the dry density of 1.45 g/cm 3 . The decrease of the permeability coefficient of diesel-contaminated loess is relatively small at the dry density of 1.55 g/cm 3 , when the oil content is more than 4%. Moreover, the permeability coefficient decreases by 6.5% when the oil content ranges from 4% to 16%.…”

Section: Permeability Of Contaminated Loessmentioning

confidence: 99%

“…As shown in Figure 6(a), at w = 12%, the compression coefficient of diesel-contaminated loess decreases initially, then increases, and then gradually decreases with the increase of oil content. It fluctuates remarkably at ρ d = 1:35 g/cm 3 because diesel contamination has a significant impact on the compression coefficient of loess with low dry density. The compression coefficient of diesel-contaminated loess decreases with the increase of dry density at the same oil content.…”

Section: Effect Of Dry Density On Compressionmentioning

confidence: 99%

“…The cases of soil and water contaminated by oil leakage are increasingly serious [1,2]. Oil leakage causes frequent pollution events to soil and environment, which is a serious problem worldwide [3]. Oil leakage not only contaminates the soil but also changes its physical and mechanical properties [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

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

Zhang

Bai

et al. 2021

Geofluids

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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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Section: Methodsmentioning

confidence: 99%

Section: Permeability Of Contaminated Loessmentioning

confidence: 99%

Section: Permeability Of Contaminated Loessmentioning

confidence: 99%

Section: Effect Of Dry Density On Compressionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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

Zhang

Bai

et al. 2021

Geofluids

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Experimental investigation of the effects of gas oil and benzene on the geotechnical properties of sandy soils

Hanaei

Sarmadi

Rezaee

et al. 2021

Innov. Infrastruct. Solut.

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In recent years, contamination of soils by different hydrocarbon has drawn the attention of geotechnical engineers.However, to our knowledge, no systematic studies have been conducted to investigate the effects of gas oil and benzene contamination on the geotechnical properties of sandy soils. Therefore, the present study investigates the impact of gas oil and benzene contamination on geotechnical properties of two kinds of sandy soil using several laboratory tests such as direct shear, compaction, and permeability tests. The compaction test results showed that optimum moisture content declined in oil-contaminated samples. Otherwise, the maximum dry density increased up to 5% oil content and then decreased by adding oil to the sand soils. The direct shear test indicated that cohesion increased and friction angle decreased after oil contamination. The result of the permeability test revealed that contamination caused a decrease in permeability of sandy soil and the change was a function of oil content and viscosity of oils.

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Prediction of shear strength parameters of hydrocarbon contaminated sand based on machine learning methods

Rezaee

Mojtahedi

Taherabadi

et al. 2020

Georisk: Assessment and Management of Risk for Engineered Syste

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Physical Modelling of Axial Compressive Bearing Capacity of Instrumented Piles in Oil-Contaminated Sandy Soil

Cited by 6 publications

References 45 publications

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

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

Experimental investigation of the effects of gas oil and benzene on the geotechnical properties of sandy soils

Prediction of shear strength parameters of hydrocarbon contaminated sand based on machine learning methods

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