Study on frost heaving characteristics of gravel soil pavement structures of airports in Alpine regions

Liu, Jiying; Cen, Guoping; Chen, Yue

doi:10.1039/c7ra02151h

Cited by 5 publications

(3 citation statements)

References 11 publications

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“…Compared with the numerical analysis method, the test study could obtain the stress performance of airport pavements under a complex environmental load action, which was an important method to study the performance of airport pavements. Fu and Liu investigated the influence of temperature, humidity, frost heave, and snow melting on the dynamic response of airport pavements and showed that the total frost-heaving quantity in the pavement shoulder area was greater than that of the pavement area [14,15]. Park studied the effects of temperature on the deflection and load transfer capacity of airport pavement; the analysis showed that variations in daily expansion and contraction strain cycles were more evident near the top surface of the pavement slab, where the ambient temperature affects it directly [16].…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis and Experimental Study of the Mechanical Response of Pavement Slab Supported on an Inhomogeneous Settlement

Huang,

Sun,

Tan

et al. 2023

Applied Sciences

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The inhomogeneous settlement of subgrade seriously affects the safety of aircraft operation. To investigate the mechanical response of pavement slabs supported on an inhomogeneous settlement, a three-dimensional model of aircraft load–pavement structure–heterogeneous pavement was established; then, the inhomogeneous settlement conditions were simulated by setting a different reaction modulus between adjacent subgrades. Finally, both numerical simulation and experimental study methods were used to analyze the flexural tensile stress and vertical displacement of the pavement slab in inhomogeneous settlement conditions under the loading effects of typical aircrafts (A320 and B737-800). The results indicate that the strain of pavement slabs increases as the change rate of an inhomogeneous subgrade support increases. Increasing the thickness of the pavement slab and reducing the inhomogeneous subgrade support can effectively improve the mechanical performance of the pavement structure. For B737-800, with the change rate of the inhomogeneous subgrade support increasing from 0% to 85.71%, the amplitude of the flexural tensile stress of the pavement slab increased by 34%. The pavement slab with a thickness of 0.36 m experienced flexural–tensile failure. For pavement slabs with thicknesses of 0.38 m and 0.40 m, the maximum inhomogeneity of the subgrade roof support should not exceed 33% or 62%, respectively. Therefore, the effect of the horizontal inhomogeneous subgrade support caused by long-term environmental action should be considered when designing pavement slabs.

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Section: Introductionmentioning

confidence: 99%

Numerical Analysis and Experimental Study of the Mechanical Response of Pavement Slab Supported on an Inhomogeneous Settlement

Huang,

Sun,

Tan

et al. 2023

Applied Sciences

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“…Traditionally, coarse-grained soils are usually identified as frost heave insensitive materials because of the large grain size, small grain surface energy, weak hydrophilic performance, little film water, large porosity, unapparent capillarity, and weak water migration, and water is easy to freeze into ice in situ [1][2][3][4]. However, based on the observation of frost heave of subgrade of Harbin-Dalian high-speed railway in Northeast China and pavement structure foundation of Guoluo Airport located at Qinghai Airport, China, Liu et al [5,6], Zhang [7], and Liu et al [8] found that the coarse-grained soils can also produce obvious frost heave phenomenon under the combination of certain clay content (the mass fraction of the particle with a diameter less than 0.075 mm), initial moisture content, and temperature in seasonal frozen region. us, it is significant to comprehensively research the frost heave characteristics of coarse-grained soil for effectively preventing frost heave deformations of coarse-grained soil foundation.…”

Section: Introductionmentioning

confidence: 99%

“…e research group has devoted to the research of frost damage in seasonal frozen region of Qinghai-Tibet Plateau for many years, especially the systematic and continuous monitoring of frost heave in gravel soil foundation of Guoluo airport pavement structure [8,38]. erefore, the gravel soil in the seasonal frozen region of Qinghai-Tibet Plateau was selected as the representative research object to research the frost heave characteristics of coarse-grained soil.…”

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

Self Cite

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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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Evaluating frost heave susceptibility of well-graded gravel for HSR subgrade based on orthogonal array testing

Luo

Wang

2019

Transportation Geotechnics

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Study on frost heaving characteristics of gravel soil pavement structures of airports in Alpine regions

Abstract: In order to study frost heaving characteristics of gravel soil pavement structures of airports in alpine regions, we designed a 1 : 10 small pavement structure model to conduct laboratory tests.

Cited by 5 publications

References 11 publications

Numerical Analysis and Experimental Study of the Mechanical Response of Pavement Slab Supported on an Inhomogeneous Settlement

Numerical Analysis and Experimental Study of the Mechanical Response of Pavement Slab Supported on an Inhomogeneous Settlement

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

Evaluating frost heave susceptibility of well-graded gravel for HSR subgrade based on orthogonal array testing

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