Cold Regions Science and Technology
Papers 2965
1 page of 297 pages (2,965 results)
Abstract This work presents a comprehensive study of the performance of rubber on icy pavement both experimentally and theoretically. The experimental tests involve four different rubber tread compounds and two pavement surfaces exhibiting different roughness characteristics. Tests are carried out at three different background temperatures ranging from −5 to −20 °C, and at the sliding speed at 40 km/h. The viscoelastic properties of the rubber specimens are quantified using dynamic mechanical an...
#1Seyed Zanyar Seyed Mousavi (SBUK: Shahid Bahonar University of Kerman)
#2Hossein Tavakoli (SBUK: Shahid Bahonar University of Kerman)
Last. Mohammad Rezaei (UKH: University of Kurdistan Hewler)H-Index: 14
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Abstract Freezing-thawing (F-T) process significantly affects the mechanical parameters of rocks in cold regions. Consequently, the effect of this phenomenon on rock properties should be evaluated before and during the construction of any engineering projects. In this regard, uniaxial compressive strength (UCS) of rocks is a good criterion for assessing the rock durability against the weathering factors. In this paper, some boreholes were drilled in the schist rock of Angouran open-pit mine of I...
Abstract Most frozen soils contain unfrozen water – water that remains liquid at subfreezing temperatures – which affects a frozen soil's strength and contributes to frost heave. Among the variables that influence the flow of unfrozen water through a freezing soil is the presence of clay minerals and their adsorbed cations. Zeta potential (ζp) is one measure of clay mineral surface properties that may provide insight into the interaction of mineral surfaces with unfrozen water films; however, on...
#1Xusheng Wan (SWPU: Southwest Petroleum University)H-Index: 3
Last. Zhaohui Yang (UAA: University of Alaska Anchorage)H-Index: 9
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Abstract Pore water freezing point and unfrozen water content heavily depend on the properties of ion solutions, ice–liquid interface energy, and pore radius and are essential for analyzing the thermal and mechanical behavior of saline soils in cold regions. This paper focuses on the analyses of pore water freezing characteristics and estimation of the unfrozen water content in saline soils. Based on the thermodynamic principles, a general equation based on the chemical potential was used to des...
#1Xiao Tan (Sichuan University)H-Index: 1
#2Mousong Wu (WHU: Wuhan University)
Last. Jingjing Chen (Zhejiang University of Technology)
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Abstract Accurate prediction of hydraulic properties in frozen soils is of importance for the role of frozen soil water dynamics in cold region water cycles. Furthermore, the existence of solute is known to complicate the water, heat and solute transport in frozen soils. To predict hydraulic properties in saline frozen soils more accurately, experiments on soil water characteristic curves (SWCCs) and soil freezing characteristic curves (SFCCs) were conducted under five solute types combined with...
#1Dahu Rui (CAS: Chinese Academy of Sciences)H-Index: 2
#1Dahu RuiH-Index: 1
Last. Yuzuru ItoH-Index: 1
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Abstract Heavy metal contaminants in clay soils can be removed through freeze–thaw cycles and washing, but the removal efficiency is low. In this study, the cause of low remediation efficiency was analyzed through the influence of eluent concentration and replenishment sequence on the frost heave of soil in combination with one-dimensional freezing soil column experiments. Results showed that the viscosity coefficient of 0.15 mol/L ethylene diamine tetraacetic acid (EDTA) increased by approximat...
#1Mochamad Raditya Pradana (NUS: National University of Singapore)H-Index: 4
#2Xudong Qian (NUS: National University of Singapore)H-Index: 16
Abstract Discrete Element Method (DEM) with inter-element bond has emerged as a promising numerical approach to simulate the ice-structure interaction. This approach simulates ice physically during pre- and post-failure, and thus offers reasonable ice load predictions when the ice mechanical properties are modeled accurately. However, achieving the desired mechanical properties in DEM often requires extensive trial-and-error process. This paper attempts to alleviate the iterative work by investi...
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#1Guanli Jiang (CAS: Chinese Academy of Sciences)H-Index: 3
#1Jiang GuanliH-Index: 4
Last. Wu QingbaiH-Index: 9
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Abstract Road engineering produces thermal influences on the permafrost on both sides of the road, but this impact is unclear yet. In this study, the thermal influences of the highway on the permafrost underneath different surfaces conditions were investigated by means of permafrost monitoring in two sites along the Qinghai-Tibet Highway (QTH). The results show that on both sides of the QTH there is a significant thermal influence on the permafrost, but this influence is closely related to the d...
#1Zhenyu Zhang (CAS: Chinese Academy of Sciences)
#2Qihao Yu (CAS: Chinese Academy of Sciences)H-Index: 13
Last. Guilong Wu (CAS: Chinese Academy of Sciences)
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Abstract Temperature-controlled ventilated embankment (TCVE) is a feasible air-cooled embankment. It can control the heat transfer mode in ventilated duct of duct ventilated embankment according to the ambient air temperature with auto-temperature-controlled wind doors installed in the duct nozzle. For investigating the cooling performance and engineering effect of TCVE, a prototype testing section of the expressway was constructed on Qinghai-Tibet Plateau. The field observation data showed that...
#1Yiqiang Han (Clemson University)H-Index: 6
#2Shivuday Kala (Clemson University)
Last. Jose Palacios (PSU: Pennsylvania State University)H-Index: 12
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Abstract Experimental and analytical results modeling partially melting ice particles are presented in this research paper. The partially melting behavior of ice particles is of interest in the context of aircraft engines, as glaciated ice crystals partially melt inside the engine to potentially refreeze. The multi-phase flow process is complex and requires experimentally verified modeling tools to predict ice crystal ice accretion. In this study, a total of 14 experimental test cases were condu...
Top fields of study
Sea ice
Geotechnical engineering