Results 41 to 50 of about 2,155 (217)

Modelling frost heave in unsaturated coarse-grained soils

open access: yes, 2021
© 2020, Springer-Verlag GmbH Germany, part of Springer Nature. Coarse-grained soils were considered not susceptible to frost heave. However, substantial frost heave has been observed in unsaturated coarse fills in high-speed railway embankments.
Liu, J, Zhang, S, Sheng, D, Teng, J
core   +1 more source

Anisotropic frost heaving coefficient of saturated permafrost considering moisture migration process based on standards

open access: yesShuiwen dizhi gongcheng dizhi
Frost heave in positive permafrost is a critical factor leading to frost damage of engineering in the cold region. The frost heave process results from the dynamic interaction of hydro-thermal forces.
Hui GE, Chunxiang GUO, Lei ZHANG
doaj   +1 more source

Experimental and analytical investigation on frost heave characteristics of coarse-grained soils under closed and open systems

open access: yesFrontiers in Earth Science, 2022
Coarse-grained soil is widely used in the seasonal frozen soil region as subgrade filler. However, substantial frost heave has been observed in coarse filler in high-speed railway embankments.
Wanjun Huang   +4 more
doaj   +1 more source

Coupled hydro-thermo-deformation frost heave model for unsaturated expansive soils in seasonally frozen soil regions

open access: yesYantu gongcheng xuebao, 2022
A large area of deep residual deluvial expansive soils is distributed in seasonally frozen soil regions in China. Its unique 'frost heave-thaw settlement' and 'expansion-shrinkage' characteristics induce many engineering diseases.
LING Xian-zhang 1, LUO Jun 2, GENG Lin 3, TANG Liang 1
doaj   +1 more source

Frost heave prediction of chilled pipelines buried in unfrozen soils

open access: yes, 1984
Frost heave is an important consideration in the design of buried chilled pipelines. A procedure for calculating the amount of heave under a chilled gas pipeline is presented based on a finite-difference formulation of the heat and mass transfer in ...
Konrad, J. M., Morgenstern, N. R.
core   +1 more source

Numerical Analysis of Frost Heave and Thaw Settlement for Pipeline Buried in Frost-Susceptible Soil via Thermosiphons

open access: yesApplied Sciences, 2023
Seasonal frost or permafrost soils may encounter frost heave or thaw settlement resulting from atmospheric temperature changes and/or heat emanating from the resource-carrying pipeline. Notably, these soil movements can damage the pipeline. Thus, various
Dong-Su Park   +3 more
doaj   +1 more source

Experimental and Theoretical Determination of the Frost-Heave Cracking Law and the Crack Propagation Criterion of Slab Track with Water in the Crack

open access: yesApplied Sciences, 2019
Crack propagation produced by frost heave affects the durability of slab-track structures in high-humidity and cold regions in China. This work is intended to reveal the evolution laws of frost-heave crack propagation, establish evaluation criteria for ...
Fengzhuang Tong   +5 more
doaj   +1 more source

Experimental Study on Frost Heave Behavior of Steel Fiber Improved Soil

open access: yesGeofluids, 2022
The incorporation of steel fibers into the natural soil is generally considered to be a novel and effective way to reduce the amount of frost heave induced by an artificial freezing process in underground engineering.
Rongjian Shi   +4 more
doaj   +1 more source

Strengthening urban resilience in China through underground infrastructures management: Addressing global climate challenges with technological solutions

open access: yesDeep Underground Science and Engineering, EarlyView.
This paper explores how climate‐resilient technologies, such as smart grids, digital twins, and self‐healing materials, can enhance urban resilience. It highlights the urgent need for proactive planning, public‐private collaboration, and data‐driven innovation to future‐proof underground infrastructure amid accelerating climate and urban pressures ...
Kai Chen Goh   +12 more
wiley   +1 more source

Study on Frost Heave and Thaw Settlement Characteristics of Sanya Estuary Channel Soil Layer

open access: yesApplied Sciences
In order to explore the frost heave and thaw settlement characteristics of soil layers in the Sanya Estuary Channel Project, the frost heave rate and thaw settlement coefficient of gravel sand, fine sand, silty clay, and clay are obtained.
Xiuwen Wu   +4 more
doaj   +1 more source

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