Seepage–Fractal Model of Embankment Soil and Its Application

Zhao, Xiaoming; Yang, Binbin; Yuan, Shichong; Shen, Zhenzhou; Feng, Di

doi:10.3390/fractalfract6050277

Cited by 7 publications

(2 citation statements)

References 37 publications

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“…The existing research results show that the soil moisture content, temperature, and other factors will also have a great impact on the test results [22][23][24][25]. However, since the focus of this paper is on the composition of the new antisliding structure, the soil moisture content and temperature are set 6 Geofluids as a fixed value, and the following research results are explained based on this condition.…”

Section: Test Results and Analysismentioning

confidence: 99%

Experimental Study on the Mechanical Mechanism of Arch-Chord-Coupled Antisliding Structure

Xia

Zheng

et al. 2022

Geofluids

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Arch-chord-coupled antisliding structure is a new type of structure composed of multiple small-diameter piles for strengthening small- and medium-sized landslides, especially suitable for the reinforcement of slopes that are sensitive to deformation. In order to further explore the mechanical properties of the antisliding structure, physical model tests under four cases were carried out to study the deformation and stress characteristics of the structure under different types, and the optimal structural type was determined. The displacement test results show that even if there is no crown beam at the top of the piles, all the piles can deform in coordination, and when the number of rear piles is large, all the piles can basically deform synchronously. The test results of the bending moment of the pile body show that the crown beam has a great influence on the extreme value of the bending moment of each pile. For the structural type with more piles arranged in the rear row, the standard deviation of the extreme value of the bending moment of the pile body before and after adding the crown beam decreases from 2.0 to 1.03; the presence of crown beams effectively adjusts the internal force of each pile. The comprehensive analysis results show that the arch-chord-coupled antisliding structure with more piles in the rear row is the best.

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Section: Test Results and Analysismentioning

confidence: 99%

Experimental Study on the Mechanical Mechanism of Arch-Chord-Coupled Antisliding Structure

Xia

Zheng

et al. 2022

Geofluids

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show abstract

“…The practical applications of fractal analysis can be seen in natural phenomena such as measuring the British coast (origin of fractal application), rocks [16], soil [17], and in the biological field [18]. Due to its ability in quantifying complex compositions, fractal analysis has been applied in measuring the geometric complexity of brain structures [2,8,14].…”

Section: Fractal Analysismentioning

confidence: 99%

Volume of Interest-Based Fractal Analysis of Huffaz’s Brain

et al. 2022

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The robust process in memorising the Quran is expected to cause neuroplasticity changes in the brain. To date, the analysis of neuroplasticity is limited in binary images because greyscale analysis requires the usage of more robust processing techniques. This research work aims to explore and characterise the complexity of textual memorisation brain structures using fractal analysis between huffaz and non-huffaz applying global box-counting, global Fourier fractal dimension (FFD), and volume of interest (VOI)-based analysis. The study recruited 47 participants from IIUM Kuantan Campus. The huffaz group had their 18 months of systematic memorisation training. The brain images were acquired by using MRI. Global box-counting and FFD analysis were conducted on the brain. Magnetic resonance imaging (MRI) found no significant statistical difference between brains of huffaz and non-huffaz. VOI-based analysis found nine significant areas: two for box-counting analysis (angular gyrus and medial temporal gyrus), six for FFD analysis (BA20, BA30, anterior cingulate, fusiform gyrus, inferior temporal gyrus, and frontal lobe), and only a single area (BA33) showed significant volume differences between huffaz and non-huffaz. The results have highlighted the sensitivity of VOI-based analysis because of its local nature, as compared to the global analysis by box-counting and FFD.

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Study on water migration and the microstructure of unsaturated expansive clays

Liu,

Wang

2024

QJEGH

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Because of the characteristics of water-swelling and drying shrinkage, the mechanical performances of expansive clay in semi-arid areas deteriorate with the change in humidity and temperature. So investigating the moisture migration in expansive clays is of great significance. Herein, scanning electron microscopy test and water migration tests of unsaturated soil were carried out to address the water variation law and microscopic mechanism in the unsaturated expansive clay. It is found that small and medium-sized pores (2-10μm) are dominated, and these pores are conducive to the rise of water in the soil. The soil with high water content exhibits a flocculent structure, characterized by a small fractal dimension and a high relative hydraulic conductivity. Conversely, the soil with low water content displays a dispersed structure, featuring a large fractal dimension and a low relative hydraulic conductivity. The water migration tests under constant temperature(5, 20, and 40°C) and variable temperature (15-25°C) show that the migration amount at 5°C and 20°C was about 25%-40%, 40%-60% of that at 40°C, respectively. The amount of water migration under constant temperature was obviously lower than that under variable temperature. The research results have provided technical support for effective control of soil change.

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Seepage–Fractal Model of Embankment Soil and Its Application

Cited by 7 publications

References 37 publications

Experimental Study on the Mechanical Mechanism of Arch-Chord-Coupled Antisliding Structure

Experimental Study on the Mechanical Mechanism of Arch-Chord-Coupled Antisliding Structure

Volume of Interest-Based Fractal Analysis of Huffaz’s Brain

Study on water migration and the microstructure of unsaturated expansive clays

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