Assessing frost susceptibility of soils using PCHeave

Sheng, Daichao; Zhang, Sheng; Yu, Zhiwu; Zhang, Sheng

doi:10.1016/j.coldregions.2013.08.003

Cited by 104 publications

(36 citation statements)

References 19 publications

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“…This demonstrates the positive correlation between water content and frost heave ratio. Similarly, the effect of temperature on frost heave in this study was consistent with past research [9,13,17].…”

Section: Results Of Improved Frost Heave Experimentssupporting

confidence: 93%

“…For single factors, the results of the improved frost heave experiments indicated that the frost heave ratio was indeed a function of water content, compactness, and temperature, consistent with conclusions obtained from previous OFAT trials [35]. Sheng et al [13] analyzed the sensitivity of the frost heave ratio of clay to compactness, temperature, and groundwater level, showing that this increased significantly as groundwater level increased, causing the water content of clay to increase and providing source material for ice lens formation and aggravated frost heave [36,37]. This demonstrates the positive correlation between water content and frost heave ratio.…”

Section: Results Of Improved Frost Heave Experimentssupporting

confidence: 86%

“…Uncompacted soil has high pore space that frozen ice lens cannot fill, while compacted soil has tightly structured soil particles with low pore space that is more easily filled by frozen ice lenses, leading to obvious frost heaving deformation [38]. This result was consistent with Sun et al [21] and Bao [22], but other studies have concluded that increasing compactness reduces frost heave [13,39,40]. This contrast shows that the relationship between compactness and frost heave is affected by interactions [23] between compactness and other factors such as water content, as demonstrated in our analysis.…”

Section: Results Of Improved Frost Heave Experimentssupporting

confidence: 81%

“…The study of frost heave mechanisms began in 1961, when Everett [10] proposed the first theoretical basis for this process. This was followed by further research proposing many mathematical models [11][12][13][14], further defining frost heaving as hydrothermal coupling and migration manifested as the growth of ice lens bodies in the soil [13,15,16]. However, few studies have focused specifically on frost heaving in unsaturated soils, making further research on the mechanisms of frost heave behavior in unsaturated soil and analyses of influential factors of great significance for the prevention and control of frost damage in cold regions.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Prediction of Seasonal Frost Heave Behavior in Unsaturated Soil in Northeastern China Using Interactive Factor Analysis with Split-Plot Experiments and GRNN

Wan

Bian

et al. 2019

Water

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Few studies of frost heave mechanisms have considered multifactor interactions, particularly in unsaturated saline soils typical of northeastern China. We collected soil samples in western Jijin Province and assessed their potential frost heave behavior with reference to four controllable factors: soluble salt content (CSS), compactness (C), temperature (T), and water content (WC) using a two-level split-plot experiment. The resulting frost heave ratio was between −0.6% and 2.1%. Analysis of variance showed that water content, compactness, and temperature had significant effects on frost heave behavior, with water content having the strongest correlation (factor coefficient of 0.82), while content of soluble salt (CSS) had no significant effect. The interaction factors (products of single factors) CSS × WC and C × WC had significant effects on frost heave behavior. A correlation analysis using these interaction factors with experimental data drawn from previous research showed results consistent with the improved frost heave experiment as the significant effects of single factors on frost heave behavior ranked from WC > C > T and the interaction factors CSS × WC and C × WC gain had significant effects. We then established two generalized regression neural network (GRNN) models based on the single and interaction factors in order to predict frost heave behavior, showing that adding the latter to the input dataset improved the model accuracy. Thus, future research on predicting frost heave behavior in unsaturated saline soils should consider multiple interacting factor for greater accuracy.

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Section: Results Of Improved Frost Heave Experimentssupporting

confidence: 93%

Section: Results Of Improved Frost Heave Experimentssupporting

confidence: 86%

Section: Results Of Improved Frost Heave Experimentssupporting

confidence: 81%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Prediction of Seasonal Frost Heave Behavior in Unsaturated Soil in Northeastern China Using Interactive Factor Analysis with Split-Plot Experiments and GRNN

Wan

Bian

et al. 2019

Water

View full text Add to dashboard Cite

show abstract

“…It has always been a focus and hot spot to conduct research on soil frost heave characteristics. Since Everett [9] proposed the first frost theory and Miller [10] put forward second frost theory, there has been a lot of research [11][12][13][14][15][16][17][18][19] in frost-heaving mechanism, and achieved certain results. With the deepening of the understanding on frost-heaving mechanism in permafrost, the frost-heaving fillers, especially the frost heave characteristics of the coarse-grained soil, are also studied.…”

Section: Introductionmentioning

confidence: 99%

Experimental Research on Frost Heave Characteristics of Gravel Soil and Multifactor Regression Prediction

Long

Cen

Cai

et al. 2018

Advances in Materials Science and Engineering

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Gravel soil is usually considered to be insensitive to frost heave. However, many frost heave deformations of foundation in seasonal frozen region indicate that gravel soil may also produce frost heave under certain special conditions. In order to gain a deep insight into the frost heave characteristics of gravel soil, a series of laboratory experiments on one-dimensional frost heave were conducted under the open- and closed-water replenishing condition using an improved experiment apparatus. The influence of various factors including initial moisture content, clay content, compactness, overlying load, and water replenishing on frost-heaving ratio of gravel soil were analyzed. And the basic frost heave characteristics including frost heave amount, frost heave speed, frozen depth, freezing speed, and moisture content distribution after freezing in a gravel soil sample were analyzed. The corresponding mechanisms were also discussed. Results showed that in the open water replenishing condition, there exists a linear relationship between initial moisture content, overlying load, and frost-heaving ratio and a quadratic polynomial relationship between clay content, compactness, and frost-heaving ratio. Frost-heaving ratio in the open water replenishing condition can be found to increase over three times than that under the closed water replenishing condition. Multifactor regression empirical formula was obtained by multiple regression analysis to predict the frost-heaving ratio of gravel soil under certain collocation of factors and levels under the closed water replenishing condition. The significant effects on frost-heaving ratio were, in order, water replenishing > initial moisture content > clay content > compactness > overlying load.

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A framework for constructing elasto‐plastic constitutive models for frozen and unfrozen soils

Guo

2021

Num Anal Meth Geomechanics

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The need for unified constitutive models for frozen and unfrozen soils in simulating frost heave and thaw consolidation has been recognized. However, a reliable and easy‐to‐implement model is not yet available. This paper extends the one‐dimensional elasto‐plastic model proposed by Yu et al. to solve multi‐dimensional problems. In the extended model, total and effective stresses are taken as the stress variables for frozen and unfrozen soils, respectively. A critical‐state‐based mode, Clay And Sand Model (CASM), is employed for soil at unfrozen states. The emphasis is placed on how a basic constitutive model for unfrozen soils is extended to describe the elasto‐plastic behavior for both unfrozen and frozen soils in two steps: (1) extension of the constitutive model from unfrozen to frozen soils by considering ice‐bonding effect, and (2) integration of descriptions for soils at unfrozen and frozen states using the concept of residual stress (by Nixon and Morgenstern). The freeze‐thaw cycling effect is naturally incorporated by the introduction of residual stress line that is used to determine the initial stress state and preconsolidation pressure of thawed soil. After being implemented into FORTRAN subroutines for ABAQUS, the performance of the proposed model is demonstrated by simulating triaxial compression tests on frozen sand at different temperatures under confining pressures, and freeze‐thaw cycling processes of silty clay under loading.

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Assessing frost susceptibility of soils using PCHeave

Cited by 104 publications

References 19 publications

Prediction of Seasonal Frost Heave Behavior in Unsaturated Soil in Northeastern China Using Interactive Factor Analysis with Split-Plot Experiments and GRNN

Prediction of Seasonal Frost Heave Behavior in Unsaturated Soil in Northeastern China Using Interactive Factor Analysis with Split-Plot Experiments and GRNN

Experimental Research on Frost Heave Characteristics of Gravel Soil and Multifactor Regression Prediction

A framework for constructing elasto‐plastic constitutive models for frozen and unfrozen soils

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