A Method for Calculating the Horizontal Scale of Fluctuation of Soil Based on Cone Penetration Test

XIAO Ying; TAN Xiaohui; FEI Suozhu

doi:10.3724/j.gyjz.G23021411

Volume 55 Issue 3

Mar. 2025

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XIAO Ying, TAN Xiaohui, FEI Suozhu. A Method for Calculating the Horizontal Scale of Fluctuation of Soil Based on Cone Penetration Test[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(3): 204-210. doi: 10.3724/j.gyjz.G23021411

Citation:

XIAO Ying, TAN Xiaohui, FEI Suozhu. A Method for Calculating the Horizontal Scale of Fluctuation of Soil Based on Cone Penetration Test[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(3): 204-210. doi: 10.3724/j.gyjz.G23021411

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A Method for Calculating the Horizontal Scale of Fluctuation of Soil Based on Cone Penetration Test

doi: 10.3724/j.gyjz.G23021411

School of Resources and Environmental Engineering, Hefei University of Technology, Hefei 230009, China

Received Date: 2023-02-14
Available Online: 2025-06-07
Publish Date: 2025-03-20

Abstract

Abstract

Due to geological and environmental effects， the soil mass has spatial variability. The fluctuation scale of soil parameters is an important parameter for random field simulation when the spatial variability is taken into account. The auto-correlation function method and semi-variation function method are used to calculate the fluctuation scale， which requires the data distribution to be collinear and equidistant. To solve this limitation and estimate horizontal scale of fluctuation in the condition that the location of cone penetration tests （CPT） is neither collinear nor equidistant， it is necessary to preprocess the CPT sounding hole data by the grouping and induction method. The feasibility of the method was verified by calculating the horizontal scales of fluctuation with the CPT data of clay layers in four sites in Hefei by the auto-correlation function method and the semi-variation method. The results showed that it would be best to use the mean column distance （h_a） as the group spacing， the （LGS） model was used in the auto-correlation function method， and the semi-variation function method using the （SQX） model was suitable for solving the horizontal scales of fluctuation of non-collinear and non-equidistant sounding holes.
- spatial variability,
- horizontal scale of fluctuation,
- clay,
- random field theory,
- geostatistics

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References(23)

References

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