Results 31 to 40 of about 9,019 (250)
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
During the horizontal freezing construction of a subway tunnel, the delay of the closure of the frozen wall occurs frequently due to the existence of groundwater seepage, which can be directly reflected by a freezing temperature field.
Mengkai Li +4 more
doaj +1 more source
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
Low temperature tensile properties of line pipe steels [PDF]
Given the expected increase in Arctic oil and gas exploitation, there is a demand for high-strength line pipe steels able to cope with the Arctic climate. The state-of-the-art of the tensile properties of API 5L steels at low temperatures is reviewed and
De Waele, Wim +2 more
core +2 more sources
Predicting the frost heaving of bottom ash value for road design
Introduction. Most of the researchers dealing with the use of ash and slag materials (especially in the construction) have focused on the study of their mechanical characteristics or assessment of their impact on the environment.
A. A. Lunev +3 more
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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
Experimental study on water transfer of soil-rock mixtures under freezing action
The frost-heaving failure of earth-rock dam slopes is mainly caused by the combined action of sand and gravel cushion, frost heaving of dam fills and water migration.
LI Zhuo 1, 2, JIANG Xin 3, ZHANG Jixun 3, ZHAO Yu 3, WANG Yuqing 3, LU Yang 3
doaj +1 more source
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
Xiaoyong Long +3 more
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Frost heaving of foundation pit for seasonal permafrost areas
Frost heaving can cause support structures to crack and even instability of the foundation pit. This paper describes the frost heaving features of the steel pile pre-stressed tendon composite foundation pit support system (SPPTCFPSS). As a combined rigid–
Guo Chao, Zhengran Lu
doaj +1 more source
The Manzhouli 500 kV electrical transmission line travels more than 218 km through seasonal frozen regions, which result in many freezing soil engineering problems with respect to the transmission tower foundations.
Liang Tang +3 more
doaj +1 more source

