Results 31 to 40 of about 100,828 (240)
For the oil and gas pipeline operating in the permafrost regions, buckling deformation is usually caused by frost heaving and thaw settlement of the foundation soil, which affects the safety and stability of pipeline seriously.
Wei WANG +5 more
doaj +1 more source
In view of the imperfection of the calculation method of horizontal frost heaving force in the design of L-shaped retaining wall in permafrost area, based on the Lifkin foundation model and the cooperative deformation principle between retaining wall and
DONG Jian-hua +4 more
doaj +1 more source
This work is aimed at investigating the structural deterioration and the frost heaving force evolution characteristics of flawed rocks using a self-developed frost heaving force (FHF) measurement system. Three kinds of preflawed rocks with different flaw
Yu Wang +4 more
doaj +1 more source
In order to study the variation of temperature field and horizontal frost heaving force during the one-dimensional freezing and melting process of loess with different water content, the one-dimensional freezing and melting test under closed system was ...
Zheng ZHANG, Xuening MA, Qiyou ZHU
doaj +1 more source
Research in the Frost-heaving of Forest Road in Winter [PDF]
As a fundamental investigation for the maintenance of forest road surface in winter, we measured frost-heaving of forest road. We set 8 measure points and measured the frost-heaving height of each point at intervals of about 10 days from early in ...
井上, 裕, 井, 博道
core +1 more source
Influence of Uneven Subgrade Frost Heave on Deformation and Damage of CRTSIII Slab Track
The problem of uneven frost heave deformation of high-speed railway subgrade in seasonal freezing areas seriously affects the service state and service life of slab track structures and threatens the safe operation of high-speed vehicles.
Hongge Wang +5 more
doaj +1 more source
A Generalized Secondary Frost Heave Model
A generalized model for secondary frost heave is developed. Secondary frost heave arises during freezing owing to cryostatic suction effects that can increase the upward water permeation to facilitate ice-lens growth and increased heave. Nondimensionalization and scaling are used to simplify the model equations and to identify a dimensionless group ...
Fowler, A, Krantz, W
openaire +3 more sources
Antifreeze design, scientific operation, and maintenance of tunnels with broken surrounding rock in seasonal frozen areas are key factors that affect the safety of tunnel.
Cui Guangyao, Xiong Yong
doaj +1 more source
Secondary Frost Heave in Freezing Soils [PDF]
Summary: A mathematical model of secondary frost heave in freezing, gravelly soils is presented. This model is due to \textit{K. O'Neill} and \textit{R. D. Miller} [Water. Resour. Res., 21, 281-296 (1985)], who sought numerical solutions. Here, their model is made nondimensional and is analyzed using asymptotic analysis.
openaire +2 more sources
The frost heaving pressure is induced by water-ice phase transition in water-bearing cracks in addition to thermal stress at low temperature in rock engineering in cold regions.
HUANG Shi-bing 1,2, LIU Quan-sheng 3, LIU Yan-zhang 1, CHENG Ai-ping 1
doaj +1 more source

