Research on Influence of Pore Sizes for Filter Clothes in Inverted Layers on Probabilistic Seepage Loss for Sandy Soil Particles

TANG Guohang; WANG Naidong; LIU Songtao

doi:10.13204/j.gyjzg21061304

Volume 52 Issue 7

Oct. 2022

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TANG Guohang, WANG Naidong, LIU Songtao. Research on Influence of Pore Sizes for Filter Clothes in Inverted Layers on Probabilistic Seepage Loss for Sandy Soil Particles[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(7): 123-127. doi: 10.13204/j.gyjzg21061304

Citation:

TANG Guohang, WANG Naidong, LIU Songtao. Research on Influence of Pore Sizes for Filter Clothes in Inverted Layers on Probabilistic Seepage Loss for Sandy Soil Particles[J]. INDUSTRIAL CONSTRUCTION, 2022, 52(7): 123-127. doi: 10.13204/j.gyjzg21061304

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Research on Influence of Pore Sizes for Filter Clothes in Inverted Layers on Probabilistic Seepage Loss for Sandy Soil Particles

doi: 10.13204/j.gyjzg21061304

School of Transportation Science and Engineering, Beihang University, Beijing 100191, China

Received Date: 2021-06-13
Available Online: 2022-10-28

Abstract

Abstract

The stress of soil particles in seepage pore channels of sand in penetration processes was analyzed. Based on the criterion for the probability of particles across filter clothes, comprehensively considering the influence of pore sizes for filter clothes in inverted layers and filter wire diameters, hydraulic slopes, grain size distribution, densities and angles of internal friction on the seepage loss of soil particles, the equation for soil particle seepage loss of sand soil based on the probability was established. The radial permeability tests of sandy soil from Yongding River in Beijing were conducted in the conditions of different pore sizes for filter clothes, and the loss of soil particles in tests were collected. The test results were compared with the calculated results by the seepage loss equation of soil particles, and the two were consistent. It could be regarded that the size of filter clothes was positively correlated with the radial permeability coefficient of sandy soil and the soil particle loss. The established seepage loss equation of soil particles based on the probability could be better calculated the seepage loss of sandy soil particles in the condition for the seepage boundary of filters.
- sandy soil,
- filter cloth,
- probabilistic seepage loss of particle,
- radial penetration

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References(15)

References

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