2020
DOI: 10.3390/s20174783
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An Electrical Resistivity Method of Characterizing Hydromechanical and Structural Properties of Compacted Loess During Constant Rate of Strain Compression

Abstract: Hydromechanical and structural properties of compacted loess have a significant impact on the stability and reliability of subbase and subgrade, which needs to be quickly determined in the field and laboratory. Hence, an electrical resistivity method was used to characterize the hydromechanical and structural properties of compacted loess during constant rate of strain compression. In the present work, compacted loess samples with a dry density of 1.7 g/cm3, a diameter of 64 mm, a height of 10 mm and different… Show more

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Cited by 14 publications
(13 citation statements)
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“…To verify the applicability and accuracy of the collapsibility coefficient prediction model based on the resistivity index, the same loess was selected in this study and the water content was 11% and 14% according to the same method, and the corresponding dry density was 1.35 g/cm 3 , 1.40 g/cm 3 , 1.45 g/cm 3 , 1.50 g/cm 3 , and 1.55 g/cm 3 and 1.60 g/cm 3 for 12 compacted loess samples, and using the collapsibility coefficient of these 12 samples verification. Figure 13 shows the correlation between the measured value of the collapsibility coefficient of these samples and the predicted value obtained from equation (7). It can be found that the correlation coefficient between them reaches 0.962, which fully proves the rationality and feasibility of using the collapsibility coefficient based on the resistivity index of the compressed loess presented in this study, as a prediction model, and it can be used to predict the collapsibility of compacted loess in the Loess Plateau, especially in Yan'an area.…”
Section: Correlation Between the Loess Collapsibility Coefficient And Resistivitymentioning
confidence: 98%
See 1 more Smart Citation
“…To verify the applicability and accuracy of the collapsibility coefficient prediction model based on the resistivity index, the same loess was selected in this study and the water content was 11% and 14% according to the same method, and the corresponding dry density was 1.35 g/cm 3 , 1.40 g/cm 3 , 1.45 g/cm 3 , 1.50 g/cm 3 , and 1.55 g/cm 3 and 1.60 g/cm 3 for 12 compacted loess samples, and using the collapsibility coefficient of these 12 samples verification. Figure 13 shows the correlation between the measured value of the collapsibility coefficient of these samples and the predicted value obtained from equation (7). It can be found that the correlation coefficient between them reaches 0.962, which fully proves the rationality and feasibility of using the collapsibility coefficient based on the resistivity index of the compressed loess presented in this study, as a prediction model, and it can be used to predict the collapsibility of compacted loess in the Loess Plateau, especially in Yan'an area.…”
Section: Correlation Between the Loess Collapsibility Coefficient And Resistivitymentioning
confidence: 98%
“…Currently, with the implementation and advancement of China's western development strategy, ever more infrastructure projects will start construction in the northwestern region of China where the loess is relatively collapsible [4]. During construction, materials are usually taken onsite, and the loess is compacted as foundation and roadbed filler [7].…”
Section: Introductionmentioning
confidence: 99%
“…e samples and two pieces of ring-shaped filter paper (40 mm inner diameter and 61.8 mm outer diameter) were sandwiched between the upper and lower porous stones attached to the electrodes. e consolidation tests were performed using a developed consolidation apparatus [39,40] (Figure 3). e development of the electrodes, porous stone, and ringshaped filter paper was similar to that of the developed triaxial apparatus.…”
Section: Apparatusmentioning
confidence: 99%
“…At present, with the implementation and advancement of China's "Western Development" strategy, more and more infrastructure projects are being constructed in the Loess Plateau [4]. Local materials are usually used for construction, and the loess is compacted as the filling material in roadbed slopes [7]. However, variable rainfall intensity, changes in groundwater, and surface evaporation in the Loess Plateau, especially in the Yan 'an area, create a regular dry-moist cycle in local soils.…”
Section: Introductionmentioning
confidence: 99%