Dynamic Mechanical Properties and Energy Dissipation Characteristics of Frozen Soil Under Passive Confined Pressure
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DOI: 10.1007/s10338-020-00200-0
Abstract: Impact compression tests on frozen soil samples with different freezing temperatures and subjected to passive confined pressure were performed using a split Hopkinson pressure bar at different loading strain rates. The three-dimensional stress–strain curves of… read more here.
Keywords: confined pressure; energy; frozen soil; passive confined ... See more keywords
Effects and Mechanisms of Ionic Soil Stabilizers on Warm Frozen Soil
Sign Up to like & getrecommendations! Published in 2018 at "Arabian Journal for Science and Engineering"
DOI: 10.1007/s13369-018-3250-y
Abstract: Ionic soil stabilizers (ISS: acidic and alkaline) were adopted for the stabilization treatment of warm frozen soil from the Qinghai–Tibet Plateau. To evaluate the effects and analysis mechanisms of the ISS on warm frozen soil,… read more here.
Keywords: frozen soil; effects mechanisms; warm frozen; soil ... See more keywords
Numerical Analysis of Pipeline Uplift Resistance in Frozen Clay Soil Considering Hybrid Tensile-Shear Yield Behaviors
Sign Up to like & getrecommendations! Published in 2020 at "International Journal of Geosynthetics and Ground Engineering"
DOI: 10.1007/s40891-020-00228-9
Abstract: Pipeline uplift resistance plays an essential role in the design of buried pipelines in permafrost regions or artificially frozen ground. The uplift resistance of a frozen soil is dependent on the soil’s mechanical properties, which… read more here.
Keywords: uplift resistance; soil; frozen clay; frozen soil ... See more keywords
Influence of hydration heat on stochastic thermal regime of frozen soil foundation considering spatial variability of thermal parameters
Sign Up to like & getrecommendations! Published in 2018 at "Applied Thermal Engineering"
DOI: 10.1016/j.applthermaleng.2018.06.069
Abstract: Abstract Construction method of cast-in-situ concrete is very popular for the foundation engineering in permafrost regions. But the hydration heat of concrete can lead to the melt of ice in frozen soil zone, and then… read more here.
Keywords: frozen soil; foundation; stochastic thermal; heat ... See more keywords
A model for predicting the frost-heave effect of a pile embedded in the frozen soil
Sign Up to like & getrecommendations! Published in 2018 at "Cold Regions Science and Technology"
DOI: 10.1016/j.coldregions.2017.10.005
Abstract: Abstract A model for predicting the frost-heave effect on a single pile embedded in the frozen soil is proposed in this study. In the model, the half-space saturated soil is considered to be composed of… read more here.
Keywords: frozen soil; model predicting; frost heave; pile ... See more keywords
Comparison of modulus equations of frozen soil based on spherical template indenter
Sign Up to like & getrecommendations! Published in 2020 at "Cold Regions Science and Technology"
DOI: 10.1016/j.coldregions.2019.102911
Abstract: Abstract In order to provide reliable modulus estimating equation, based on Spherical template indenter test and linear elastic theory, it obtained two different modulus formulations, called as strict solution and modified solution relatively. Following then,… read more here.
Keywords: frozen soil; template indenter; solution; spherical template ... See more keywords
Microscopic mechanisms of microwave irradiation thawing frozen soil and potential application in excavation of frozen ground
Sign Up to like & getrecommendations! Published in 2021 at "Cold Regions Science and Technology"
DOI: 10.1016/j.coldregions.2021.103248
Abstract: Abstract Engineering activities are becoming increasingly frequent in seasonally frozen and permafrost regions. Artificially thawing frozen soil before excavation may significantly increase the efficiency of excavation and reduce cost. Microwave irradiation can thaw frozen soil… read more here.
Keywords: thawing frozen; soil; frozen soil; excavation ... See more keywords
An elastoplastic damage constitutive model for frozen soil based on the super/subloading yield surfaces
Sign Up to like & getrecommendations! Published in 2020 at "Computers and Geotechnics"
DOI: 10.1016/j.compgeo.2020.103842
Abstract: Abstract Soil particles and ice form bonded structure in frozen soil. The modulus and bond strength of frozen soil decrease with the damage of the bonded structure during deformation. An elastoplastic damage constitutive model, based… read more here.
Keywords: soil; damage; model; frozen soil ... See more keywords
Influence of Seasonal Frozen Soil on Near‐Surface Shear Wave Velocity in Eastern Hokkaido, Japan
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DOI: 10.1029/2019gl082282
Abstract: We measured shear wave velocities in the shallow subsurface by applying seismic interferometry to earthquake records from eight vertical borehole arrays in eastern Hokkaido, Japan. We detected an increase of several percent in the seismic… read more here.
Keywords: velocity; shear wave; seasonal frozen; frozen soil ... See more keywords
Mechanical behavior of frozen soil improved with sulphoaluminate cement and its microscopic mechanism
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DOI: 10.1038/s41598-020-73148-3
Abstract: The foundation of constructions built in the permafrost areas undergo considerable creeping or thawing deformation because of the underlying ice-rich permafrost. Soil improvement may be of advantage in treating ice-rich permafrost at shallow depth. Sulphoaluminate… read more here.
Keywords: frozen soil; mechanical behavior; microscopic mechanism; sulphoaluminate cement ... See more keywords
Sensitivity analysis of the frozen soil nonlinear latent heat and its precise transformation method
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DOI: 10.1093/gji/ggab319
Abstract: Latent heat of soil water phase transition is an important parameter affecting the prediction of the temperature field in a frozen soil. With the nonlinear change of unfrozen water content in freezing soil, the latent… read more here.
Keywords: phase; temperature; frozen soil; heat ... See more keywords