Results 41 to 50 of about 6,675,201 (223)
Advances in Materials Science and Engineering, 2019 An experimental study on the normal frost-heave force generated by loess was conducted by subjecting loess with various water contents and densities to different temperature conditions.
Zai-kun Zhao +3 more
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Stability of the Foundation of Buried Energy Pipeline in Permafrost Region
Geofluids, 2021 During operation, a buried pipeline is threatened by a variety of geological hazards, particularly in permafrost regions, where freezing-thawing disasters have a significant influence on the integrity and safety of the buried pipelines. The topographical
Yan Li +4 more
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Modeling of frost depth and frost heave in the Luoma test site [PDF]
, 2013 Construction work in Finland is a year-round operation, regardless of the challenges that the cold Finnish winter presents. Finland is located in a region where frost effects must always be taken into consideration as a part of designing and construction
Tieaho, Ilkka
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Deep Underground Science and Engineering, EarlyView.The evolution of the temperature field and frozen wall under different fracture conditions was examined by an artificial ground freezing‐based thermal‐hydraulic coupled model. It was observed that fracture inclination affects the interaction extent of freezing pipes and fracture, while phase transition extent is the dominant factor for heat transfer in
Chenyi Zhang +9 more
wiley +1 more source
Frost heave prediction of chilled pipelines buried in unfrozen soils
, 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.
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Frontiers in Earth Science, 2022 The initiation and reception of shields are major risk events for shield construction in water-rich and weak strata. Although the freezing method and the steel sleeve method receiving-shield tunneling technologies both have engineering applications, the ...
Y. Mei +4 more
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Deep Underground Science and Engineering, EarlyView.B1 is bord width 1, B2 is bord width 2, L is the pillar length, W is the pillar width, red color and letter A represent the pillars, and white color and number 1 represent excavated areas. Pstress is the average pillar stress; σv is the vertical component of the virgin stress, MPa; and e is the areal extraction ratio. e = B o B o + B P ${\rm{e}}=\frac{{
Tawanda Zvarivadza +4 more
wiley +1 more source
Frost heave in compressible soils [PDF]
, 2010 We develop a mathematical model of frost heave in compressible soils based on a morphological instability of the ice–soil interface. The theory accounts for heave and soil consolidation,while avoiding the frozen fringe assumption.
Sander, Graham +3 more
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Cold Storage Frost Heave Prevention [PDF]
, 2022 Selecting a frost heave prevention method for cold storage facilities focuses on the issue of frost heave, the prevention methods available, and the builders' preferences when it comes to applying those methods, dependent on the region and size of the ...
Rahn, Keith A., Sanford, Douglas
core
Guan'gai paishui xuebao【Objective】Saline soils in seasonal frozen regions are often used as channel foundations but are prone to frost heave and salt migration, which can compromise structural stability.
KANG Xinrui +4 more
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