Design and fabrication of a large-scale oedometer

Mokhtari, Mohammad Hossein; Shariatmadari, Nader; R., Ali Akbar Heshmati; Salehzadeh, Hossein

doi:10.1007/s11771-015-2603-x

Cited by 14 publications

(4 citation statements)

References 14 publications

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“…e relationship between K 0 and σ v ′ are plotted in Figures 4(a)-4(c), respectively. Figure 4 shows that the K 0 value of every test specimen tends to decrease with the increment of σ v ′ , which is consistent with the published works [20][21][22][23][24][25]. erefore, studying the relationship of K 0 and σ v ′ has important theoretical significance.…”

Section: Interpretation Of Experimental Resultssupporting

confidence: 87%

Practical Approach to Predicting theK₀Behavior of In Situ Sandy Gravel

Jiang

Jun-gao

Ji³

et al. 2018

Advances in Civil Engineering

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To investigate the scale effect on at-rest earth pressure coefficient K 0 for sandy gravel, a number of K 0 tests for sandy gravel were performed by using a new-developed large-size K 0 apparatus. e test samples with different maximum particle size d M are prepared by different techniques, and the scale effect on K 0 behavior of sandy gravels is investigated. It is found that the vertical stress σ v , preparation technique and d M all have some influence on the value of K 0 for the tested sandy gravels. Since different d M or preparation techniques all induce the scale effect, the scale effect on K 0 of sandy gravel can not be ignored. Based on the test data of sandy gravel, a description of K 0 considering scale effect as well as σ v is proposed and an approach to predict the K 0 behavior of sandy gravel in situ is obtained. Furthermore, the accuracy and applicability of the approach is verified.

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Section: Interpretation Of Experimental Resultssupporting

confidence: 87%

Practical Approach to Predicting theK₀Behavior of In Situ Sandy Gravel

Jiang

Jun-gao

Ji³

et al. 2018

Advances in Civil Engineering

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“…This oedometer had a diameter of 492 mm and a height of 550 mm and was designed, fabricated, and calibrated at the Soil Mechanics Laboratory of the Faculty of Engineering at the University of Guilan (Figure 4). The oedometer consisted of a loading frame, a computer-controlled hydraulic loading plunger, an oedometer cell, displacement, pore pressure, normal and lateral pressure transducers, and a computerized data acquisition system [24].…”

Section: Figure 4 Large Oedometer Testing Apparatusmentioning

confidence: 99%

Statistical investigation on plastic waste recycling by reusing in soil

2022

JCE

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Recycling and reusing plastic waste are key options for ameliorating its negative effects on the environment and the economy. This paper proposes evolutionary polynomial regression (EPR) as a powerful technique to predict the compressibility behavior of sand and high-density polyethylene (HDPE) mixtures. In the investigation, a series of large-scale oedometer experiments were conducted. The results of the coefficients of lateral earth pressure and volume compressibility coefficients of different mixtures were used to develop EPR models. The model parameters were evaluated by sensitivity analyses. The results showed that the best developed EPR model is robust for estimating the characteristics of sand and HDPE mixtures.

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“…Although rational Casagrande odometer is suitable for determining the consolidation speci cation of homogenous ne-graded soil, but it is not suitable for coarse aggregate soils because of scale factor (Maryam et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Application of digital image processing in determination of soil consolidation coefficient

paknejad,

Ejlali,

Fattahi

et al. 2024

Preprint

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In geotechnical engineering, in order to perform analyzes related to consolidation settlement, appropriate values of consolidation coefficient should be available. One-dimensional consolidation test with Casagrande odometer is a conventional method to determine the value of consolidation coefficient. Due to the recent significant developments in digital image technology in the field of geotechnical engineering and due to the reasonable costs and high accuracy of measurement, various researchers have used this technique in the analysis of soil deformation characteristics. In this research, the digital image processing (DIP) technique has been used to determine the deformation of the consolidation sample during the consolidation process. Due to the limitations of the conventional consolidation machine in terms of sample dimensions and also the lack of visibility of the sample and as a result the inability to take pictures, a new large-scale consolidation machine has been made. In order to ensure the proper functioning of the new device, 3 series of consolidation tests have been performed on Tabriz saturated clay samples with the new consolidation device as well as the conventional consolidation device. The comparison of the results shows that the consolidation parameters measured by the new device are comparable to the conventional odometer device. Then, by performing 4 series of consolidation tests with a new consolidation device and taking pictures of the sample during the consolidation process, the information related to the deformation of the sample was recorded and with the help of the DIP technique, the deformation of the consolidation sample, and as a result, the load-deformation information was measured and the consolidation coefficient of the samples has been determined based on them. The results show the accuracy and efficiency of the DIP technique in determining soil consolidation parameters.

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Design and fabrication of a large-scale oedometer

Cited by 14 publications

References 14 publications

Practical Approach to Predicting theK₀Behavior of In Situ Sandy Gravel

Practical Approach to Predicting theK₀Behavior of In Situ Sandy Gravel

Statistical investigation on plastic waste recycling by reusing in soil

Application of digital image processing in determination of soil consolidation coefficient

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Design and fabrication of a large-scale oedometer

Cited by 14 publications

References 14 publications

Practical Approach to Predicting theK0Behavior of In Situ Sandy Gravel

Practical Approach to Predicting theK0Behavior of In Situ Sandy Gravel

Statistical investigation on plastic waste recycling by reusing in soil

Application of digital image processing in determination of soil consolidation coefficient

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Product

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Practical Approach to Predicting theK₀Behavior of In Situ Sandy Gravel

Practical Approach to Predicting theK₀Behavior of In Situ Sandy Gravel