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Seismic response of the anchored frame beam reinforced slopes in seasonally frozen regions: Shaking table test and numerical analysis Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-03-16 Xiaolei Wu, Jianhua Dong, Pengfei He, Bo Lian, Yongbin Xie
Frame beam-anchor geotechnical structures are increasingly utilized to reinforce slopes in earthquake prone areas. Their dynamic responses have been thoroughly explored. However, the influence of seasonal variation in seasonally frozen regions has been largely ignored. This paper investigates the seismic response of slopes reinforced with anchored frame beams, considering the combined effects of seasonal
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Automating avalanche detection in ground-based photographs with deep learning Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-03-16 James Fox, Anna Siebenbrunner, Sandra Reitinger, David Peer, Antonio Rodríguez-Sánchez
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Full-scale tests of deicing with seawater Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-03-16 Ane Sæterdal, Per-Arne Sundsbø
Sea-spray icing is one of the major hazards for small- and medium-sized vessels in polar regions. Predominant anti- and deicing measures include prevention by heeding the weather forecasts and avoiding high-risk situations, protection by enclosing exposed and high-priority areas, manual ice removal by personnel, heat tracing and surplus heat. Energy is in limited supply on vessels, and alternative
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Influence of the ice shape on ice-structure impact loads Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-03-15 Franciska Müller, Angelo Böhm, Hauke Herrnring, Franz von Bock und Polach, Sören Ehlers
Ships that are navigating in ice covered waters are at risk of colliding with icebergs or ice floes, which can lead to severe damage to the ship‘s hull in certain conditions. Predicting these loads is of great importance for the design and safety of ships. Ice loads are driven by a range of parameters, including ice properties such as the compressive strength, the geometry of the ship's hull and values
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SLABS: An improved probabilistic method to assess the avalanche risk on backcountry ski tours Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-03-15 Bart Degraeuwe, Günter Schmudlach, Kurt Winkler, Jochen Köhler
The main danger to which backcountry skiers are exposed are dry slab avalanches triggered by skiers themselves. In this paper we present a new probabilistic method to assess the avalanche risk when planning a ski tour: SLABS (creening the ikelihood of valanches on ackcountry ki tours). The SLABS method is the first fully statistically derived probabilistic method for backcountry skiing. We used a data
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The critical anti-icing power study of the stayed-cable cylindrical structure based on positive temperature coefficient (PTC) electrothermal film with low Curie temperature Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-03-13 Maozheng Wang, Xingliang Jiang, Yu Chen, Lie Ma, Heling Xie, Hongmei Zhang
The low temperature and high humidity regions are prone to freezing rain during winter, causing the formation of icicles on the surface of the stayed-cable cylindrical structure. When dislodged by gravity and wind, these icicles may fall and significantly impede the normal movement of vehicles, posing a danger to pedestrians. In this paper, a new organic positive temperature coefficient (PTC) electrothermal
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Application of the cooling measures in the highway roadbed in permafrost regions of the Qinghai-Tibet Plateau Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-03-12 Qinguo Ma, Tianli Lan, Yuanming Lai, Xiaoxiao Luo, Peifeng He
Permafrost in the Qinghai-Tibet Plateau (QTP) accounts for a total area of 1.05 × 10 km. Many highway engineerings have been through the permafrost regions of the QTP, including the Qingkang Highway (QKH), Qinghai-Tibet Highway (QTH), and Gonghe-Yushu expressway (GYE), and the Qinghai-Tibet expressway (QTE) will be constructed in the future. Under the action of roadbed construction and global warming
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A laser ultrasound system to non-invasively measure compression waves in granular ice mixes Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-03-11 James C. McCaslin, T. Dylan Mikesell, Hans-Peter Marshall
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An experimental study on the influence of ice saturation and sub-zero temperatures on the dynamic mechanical properties of sandstones Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-03-11 Zilong Zhou, Barkat Ullah, E. Yude, Xin Cai, Wang Jingyao
The influence of ice saturations on the mechanical properties of rocks in cold regions is of great significance for many engineering projects. This study adopted a nuclear magnetic resonance (NMR) technology to measure the different ice saturations of sandstone specimens accurately. The split Hopkinson pressure bar (SHPB) was espoused to conduct dynamic compressive tests on sandstone with different
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Mechanism and control of preload force loss of precast structural joint bolts under freeze–Thaw environments Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-03-11 Jianghong Mao, Kun Fang, Hongtao Jia, Qingyang Wang, Sili Li, Wei Qian, Feng Xiong, Wenbin Peng
Bolt-connected precast buildings are increasingly prevalent, especially due to their efficient force transfer and accelerated construction processes. However, in cold climates, special attention must be directed towards the effects of freeze-thaw (F-T) damage on concrete at bolt connection sites. This study conducted an accelerated F-test to investigate how concrete F-T damage influences the preload
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Characteristics of turbulent flow around bridge abutments in the presence of vegetation in channel bed under ice-covered flow conditions Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-03-11 Sanaz Sediqi, Jueyi Sui, Guowei Li, Mauricio Dziedzic
During winter, ice cover frequently forms on the water surface of rivers with vegetated channel beds in cold regions. The investigation of the impacts of both ice cover and channel bed vegetation on flow structures around bridge abutments is essential for engineers to gain a comprehensive understanding of the complex interactions occurring in such a situation. In the present study, the flow structure
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Investigation of the liquid water content in composite saline soil containing chloride and sulfate ions Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-03-08 Zean Xiao, Kangliang Li, Jieyun Duan, Shaofei Zhang
Different salt types have different effects on the liquid water content of saline soil, resulting in differences in the physico-mechanical properties and water/salt migration process of saline soil. In order to investigate the phase transition process and the change of the liquid water content in composite saline soil, saline soils with the same total salt content and different ratios of sodium chloride
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On the data-driven investigation of factors affecting the need for icebreaker assistance in ice-covered waters Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-03-07 Cong Liu, Ketki Kulkarni, Mikko Suominen, Pentti Kujala, Mashrura Musharraf
Merchant vessels often require icebreaker (IB) assistance to create safe pathways and improve efficiency when navigating in the Baltic Sea. Since IB resources are limited, an accurate estimation on the need for IB assistance is important. Whether IB assistance is needed depends on multiple factors. While practical experience from captains is naturally a source of valuable information for the decision
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Extreme snowfalls and atmospheric circulation patterns in the Cantabrian Mountains (NW Spain) Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-03-01 Cristina García-Hernández, Juan Ignacio López-Moreno
This research examines the atmospheric patterns associated with damages caused by extreme snowfalls during a 115-year period, using newspapers as the source to document the events and performing then a synthetic damage index. Between 1900 and 2015 there was 180 days with personal and material damages due to snowfalls (without considering associated hazards as snow avalanches or landslides): Apart from
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The influence of sea-ice conditions on crude oil spill behaviour Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-02-29 Diana Saltymakova, Durell S. Desmond, Ryan Galley, Katarzyna Polcwiartek, Thomas D. Neusitzer, Nariman Firoozy, David G. Barber, Gary A. Stern
Sea-ice conditions during a crude oil spill govern oil behaviour and the rate of weathering processes. This study utilized data from past mesocosm experiments conducted at the Sea-ice Environmental Research Facility and compared the sea-ice temperature, salinity, and chemical composition of light crude oil under three sea-ice conditions. An oil spill under discontinuous pack ice showed a decrease in
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Formulation and validation of resistance prediction scheme for ships in ice regime described in WMO egg code Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-02-29 Shotaro Uto, Takatoshi Matsuzawa, Haruhito Shimoda, Daisuke Wako, Takenobu Toyota
Ice-going vessels encounter variable characteristics of sea ice. An ice chart describes the variability of sea ice as a combination of an ice regime and a WMO egg code for each ice regime. It is used as one of the data sources for the risk assessment of ice navigation such as the Arctic Ice Regime Shipping System (AIRSS) by Transport Canada and the Polar Operational Limit Assessment Risk Indexing System
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Ice thickness distribution and stability of three large freshwater calving glaciers on the eastern side of the Southern Patagonian Icefield Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-02-28 Esteban Lannutti, María Gabriela Lenzano, Paulina Vacaflor, Andrés Rivera, Silvana Moragues, Mauro Gentile, Luis Lenzano
The Southern Patagonian Icefield shows rapid retreat and thinning with variability in magnitude and timing among individual glaciers. To better understand these heterogeneous changes, we estimated the ice thickness distribution within the middle and lower basins of Perito Moreno, Upsala, and Viedma freshwater calving glaciers during the 2017–2018 period. We employed a surface velocity inversion method
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Mechanical and freezing behavior of quarry waste sands stabilized with two nontraditional additives Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-02-28 Benoit Loranger, Diego Maria Barbieri, Karlis Rieksts, Jonas Økern, Siri Sisselsdotter Stolpestad, Inge Hoff, Elena Scibilia
The road sector is actively exploring strategies to reduce greenhouse gas emissions by investigating the potential use of local and recycled materials, including quarry waste sand. This study presents the results of frost heave and repeated load triaxial tests conducted on fully characterized Norwegian quarry waste sands. The tests examined the effects of two nontraditional additives, lignosulfonate
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A poromechanics-based macro-mesoscopic constitutive model for warm frozen soil Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-02-27 Qiong Li, Enlong Liu, Baocun Yang, Dan Wang, Bingtang Song, Jian Kang, Ling Chen, Haotian Wei, Qihao Yu
This paper presents the establishment of a macro-mesoscopic constitutive model based on poromechanics for investigating the mechanics of warm frozen soil. The elastic parameters of warm frozen soil are influenced by the ice content variations during the loading process, considering the pressure melting characteristic of warm frozen soil. Through the integration of poromechanics and mesomechanics, a
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A study of thermal modeling parameters and their impact on modelled permafrost responses to climate warming Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-02-26 K. Roghangar, J.L. Hayley
Climate warming is causing significant changes in the Arctic, leading to increased temperatures and permafrost instability. The active layer has been shown to be affected by climate change, where warmer ground surface temperatures result in progressive permafrost thaw and a deepening active layer. This study assessed the effects of thermal modeling parameters on permafrost ground response to climate
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Temperature and salinity in the Bohai Sea landfast ice: Observations and modelling Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-02-24 Yuxian Ma, Bin Cheng, Matti Leppäranta, Yubing Cheng, Shuai Yuan, Ning Xu, Wenqi Shi
Temperature and salinity are essential thermodynamic properties of sea ice. A 40-day long field campaign was carried out in winter 2020/2021 in the northern Bohai Sea in the landfast sea ice to investigate the seasonal sea ice temperature and salinity evolution. Ice thickness was measured routinely. A thermistor string was used to measure the ice temperature. Ice samples were collected for salinity
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Characterizing the dynamic resilient modulus of subgrade soil treated by BT-SAP subjected to freeze-thaw cycles Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-02-24 Xinzhuang Cui, Yefeng Du, Xiaoning Zhang, Jianwen Hao, Zhenhao Bao, Qing Jin, Xiangyang Li
Freeze-thaw (FT) cycles are regarded as a damage effect to the dynamic resilient modulus () of subgrade soil in seasonal frozen regions and improving the resistance on freeze-thaw cycles must be concerned urgently. For this purpose, the bentonite superabsorbent polymer (BT-SAP) was developed as an available admixture to relieve the attenuation of of subgrade soil under FT cycles. In order to evaluate
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Study on the characterization method and evolution law of the three-dimensional pore structure in frozen loess under loading Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-02-24 Shijie Chen, Wei Ma, Guoyu Li, Juan Li, Xiaoli Ma
In this study, a functional relationship for frozen soil at different temperatures, confining pressures, and triaxial compressive strengths is established through macroscopic and mesoscopic comparative tests. Additionally, a three-dimensional pore network model at the mesoscopic scale is constructed. Morphological characterization parameters are introduced to quantify the pore structure, and the evolution
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Investigation on the bearing capacity evolution of building pile foundation during permafrost degradation Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-02-23 Kaichi Qiu, Wenbing Yu, Xiangbing Kong, Fenglei Han, Yicong Zhao
The warming and melting of permafrost due to climate warming pose a considerable threat to the integrity of the Pan Arctic building, thus jeopardizing sustainable development. The increase in ambient temperature in permafrost areas will cause deterioration in the bearing capacity of building pile foundations. Considering the continuous deepening of the active layer (z), the present paper used small-scale
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Are the Noah and Noah-MP land surface models accurate for frozen soil conditions? Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-02-18 Theodore Letcher, John Eylander, Sally Shoop, Susan Frankenstein
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Strength criterion of ice-rich moraine soil considering the ice form and temperature based on thermal-mechanical triaxial tests Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-02-18 Rui Wang, Changdong Li, Dongming Gu, Nang Mon Mon Thaw, Jiao Wang
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An experimental investigation of ice and snow shedding from bridge cables with and without surface modifications Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-02-15 Lubomir Matejicka, Philippe Delpech, Christos T. Georgakis, Olivier Flamand
Ice and snow shedding events on cable-supported bridges around the world have become more frequent in recent years. Although they pose a risk to bridge users and lead to lengthy bridge closures, the research so far has focused mainly on the development of various countermeasures and the aerodynamic behaviour of cables with ice or snow accretions. In this paper, a wind tunnel investigation aimed at
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Study on working performance and cooling effect of a novel horizontal thermosyphon applied to expressway embankment in permafrost regions Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-02-08 Mingyang Jin, Ke Shang, Qihao Yu, Kun Chen, Lei Guo, YanHui You
Two-phase closed thermosyphon (TPCT) has been widely used to preserve permafrost subgrade of infrastructure in permafrost regions. However, cracks often occur on the road surfaces of the embankments installed with TPCTs, this is mainly due to the differential frost heave around the TPCT caused by the lateral geotemperature difference, which poses a threat to the stability of the engineering. Aiming
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Study on electrical properties of saline frozen soil and influence mechanism of unfrozen water content Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-02-04 Bo Liu, Lulu He, Congcong Li, Yanhui Han, Yanding Sun, Qian Han, Jingyuan Zeng
Temperature and unfrozen water content are important affecting parameters in soil freezing process. This study aims to explore correlation between electrical conductivity, unfrozen water content, and temperature for silty clay under various salt content conditions and propose new theoretical relationships to predict the changes of related parameters in the freezing process. Frequency domain reflection()sensors
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Long-term responses of permafrost to the dual impacts of climate warming and engineering disturbance along the Qinghai-Tibet Highway Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-01-29 Guanli Jiang, Ziteng Fu, Siru Gao, Hongting Zhao, Ji Chen, Yongzhi Liu, Qingbai Wu
The sensitivity of near-surface permafrost to both climate warming and engineering disturbance is widely acknowledged. However, long-term responses of permafrost to the dual impacts of climate warming and engineering disturbances remain poorly understood. Using a 20-year dataset of ground temperature under roadway and natural ground surface, in this study not only we identify the thermal impacts of
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Thaw settlement susceptibility mapping for roads on permafrost - Towards climate-resilient and cost-efficient infrastructure in the Arctic Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-02-02 Johanna Scheer, Soňa Tomaškovičová, Thomas Ingeman-Nielsen
Permafrost thaw induces terrain instabilities and hazards that severely threaten the integrity of roads and, by extension, the socio-economic development of Arctic communities. The research aimed at identifying paved road sections currently susceptible to permafrost thaw settlements and their damages, in Ilulissat, West Greenland. To this end, we developed and implemented a Thaw Settlement Susceptibility
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Study on dynamic response characteristics of compacted loss slope under freeze-thaw cycles and earthquake loads Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-02-01 Zhijian Wu, Jingjing Jing, Yu Lu, Wei Ma, Xinming Pan, Chao Liang, Dawei Chen
The understanding of the dynamic behavior characteristics and mechanisms of seismic landslides in seasonal frozen soil areas following severe freeze-thaw damage is currently limited. Taking a compacted loess slope in Lanzhou National New Area of China as the prototype, freeze-thaw cycle tests and large-scale shaking table tests were conducted, and the dynamic responses of freeze-thaw slope and non-freeze-thaw
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Probabilistic analysis of the thermal insulation length demand of tunnels in cold regions via the FEM-CFD coupled method Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-01-23 Qionglin Li, Lei Peng, Yanhu Mu, Yanzhi Ji, Dangxian Li
In winter, cold air flowing into tunnels undergoes heat exchange with the surrounding rock and lining, rendering frost protection a critical concern. In this paper, a practical procedure for integrating the FEM–CFD coupled method into probabilistic analysis is presented for determining the thermal insulation length demand of tunnels in cold regions, in which uncertainties in the air temperature and
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Shear strength model of unsaturated frozen soil based on soil freezing characteristic and soil water characteristic Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-01-23 Huie Chen, Qi Ding, Haotian Guo, Jinfeng Li, Xiang Gao, Sitan Li
The strength characteristics of unsaturated soil after freezing significantly influence the safety of engineering construction in frozen soil regions. In this study, the soil freezing characteristic curve (SFCC) and soil water characteristic curve (SWCC) of unsaturated lean clay were tested. Based on the similarity between SFCC and SWCC, the unfrozen water content of SFCC was used to replace the water
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A new interpolation method to resolve under-sampling of UAV-lidar snow depth observations in coniferous forests Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-01-23 Vasana Dharmadasa, Christophe Kinnard, Michel Baraër
Obtaining accurate snow depth estimates under dense canopies using airborne lidar (light detection and ranging) techniques is challenging due to the under-sampling of ground and snow surfaces. Existing interpolation techniques do not adequately address this problem and they often result in an overestimation of under-canopy snow depths. To address this issue, we introduce and evaluate a new interpolation
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Degrading permafrost beneath road embankments of the Qinghai-Tibet Highway from 1995 to 2020 Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-01-23 Zhizhong Sun, Wei Ma, Guoyu Li, Yongzhi Liu, Guilong Wu
Degradation of permafrost damages infrastructure and housing. For the sustainability of the Qinghai-Tibet Highway, a monitoring system of ground temperature under 9 typical road embankments was initiated in 1995. In this study, permafrost changes were analyzed based on the collected data until 2020. Field observations demonstrated widespread degrading of permafrost and variational features of the artificial
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Friction behaviors and flow resistances of rock-ice avalanches Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-01-22 Zhi-bo Dong, Li-jun Su, Bing-li Hu, Shuai-sheng Miao
Rock-ice avalanches have high mobility and enormous destructive potential. However, the friction behaviors and flow resistance during the transition of flow regimes of the rock-ice avalanche remains an unsolved problem. Based on a series of measurements of normal, shear stress and pore water pressure at the rotating drum in a temperature-controllable laboratory, we quantify the influence of the ice
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Applicability of the principle of effective stress in cold regions geotechnical engineering Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-01-22 Jilin Qi, Wenyu Cui, Dongyong Wang
The principle of effective stress is widely recognized as the cornerstone of soil mechanics, with its application extending beyond soils to other porous materials such as rocks and concrete. In recent decades, there has been a significant surge in scientific research and engineering practice in cold regions, where the classical framework of effective stress in soil mechanics is frequently invoked.
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Scaling ice-induced vibrations by combining replica modeling and preservation of kinematics Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-01-19 Tim C. Hammer, Otto Puolakka, Hayo Hendrikse
A modeling approach to simulate ice-induced vibrations of vertically sided offshore structures in ice tank experiments is presented. The technique combines replica modeling with the preservation of kinematics during ice-structure interaction. The technique was chosen based on the theoretical understanding that ice-induced vibrations are caused by an energy exchange between the structure and the ice
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Micro-scale investigations on the mechanical properties of expansive soil subjected to freeze-thaw cycles Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-01-14 Qimin Chen, Bibek Ghimire, Libin Su, Yong Liu
Freeze-thaw (FT) cycle is one of the most important factors contributing to the deterioration of expansive soil properties in seasonal frozen regions. In this study, a multiscale approach was used to investigate the impact of FT cycles on the volume deformation, mechanical properties and microstructure of expansive soil with different initial compaction states. FT cycle, unconfined compression, scanning
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Experimental study on strength characteristics and constitutive behavior of frozen chloride silty clay Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-01-13 Yu Tang, Ping Yang, Lin Li, Zhiliang Zhou
Artificial ground freezing (AGF) technology is sometimes adopted to reinforce the surrounding soil to ensure the safety of subway tunnels during construction in the eastern coastal areas of China. The mechanical characteristics of frozen soil are subjected to change due to the incorporation of chlorine salt, and the soil strength decreases significantly with an increase of salt content. The mechanical
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Influence mechanism of seasonal rainfall on hydrothermal changes of permafrost active layer in the central Qinghai-Tibet Plateau Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-01-12 Zhixiong Zhou, Fengxi Zhou, Mingli Zhang, Qiang Ma, Anjing Ma
The Qinghai-Tibet Plateau (QTP) has prominent seasonal variations in rainfall, which affect the thermal-moisture regime of the active layer in permafrost regions. However, few studies have been conducted on the influence of seasonal rainfall on the hydrothermal changes of the permafrost active layer. Therefore, a validated water-vapour-heat (WVH) coupling model that optimises the surface energy boundary
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Under cover ice transport processes under equilibrium and non-equilibrium conditions Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-01-11 Randula Senarathbandara, Shawn P. Clark, Karen Dow
The transport of ice particles beneath a stable ice cover (referred to as cover load transport), and the processes leading to ice deposition and erosion are highly dynamic and complex. Based on the strong analogous relationship between bed load and cover load transport processes, knowledge from bed load transport research can be used when developing experiments for cover load transport processes. This
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Droplet supercooling in marine icing tests Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-01-08 O. Puolakka
Droplet supercooling in marine icing tests is studied theoretically using established correlations for convection and evaporation. The effect of freestream turbulence on heat and mass transfer is included through an empirical modification to the Nusselt and Sherwood numbers. Droplets are shown to cool following a modified exponential decay, with the trajectory length and shape determined by a thermal
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Thermo-hydro-mechanical (THM) analysis of rock-ice avalanches: Considering the effects of particle breakage in the sliding zone Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-01-07 Haotian Wei, Enlong Liu, Xueli Wei, Chuan He, Ling Chen, Qiong Li
The high-speed and long-distance sliding characteristics of large-scale rock-ice avalanches usually make them a catastrophic event, which seriously threatens the safety of human beings and infrastructure. Obviously, apart from the lubrication of ice and water, the fragmentation of particles in the slip zone is also an important contribution to the hypermobility of rock-ice avalanches. Up to now, existing
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Influence of freeze-thaw cycles on the shear performance of silty clay-concrete interface Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-01-06 Boxin Wang, Jiaqi Liu, Qing Wang, Xianzhang Ling, Jingjing Pan, Ruichang Fang, Zilong Bai
In regions with seasonal frozen soil, mechanical properties of soil are impacted by freeze-thaw cycles, which influence the shear resistance of soil-concrete interface in geotechnical engineering. For evaluating shear properties at the soil-concrete interface, freeze-thaw cycles and direct shear experiments were conducted in this research. The stress-displacement curves, shear strength and parameters
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Experimental study on the dealkalization of red mud using the freeze-thaw and acid washing method Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-01-06 Dahu Rui, Mingpu Li, Mintae Kim, Jun Zhang, Wenjun Nie, Shuren Wang, Guoyu Li, Shengjie Liu
The strong alkalinity of red mud is a key reason that threatens the environment and restricts the secondary use of red mud. Freeze-thaw (FT)-acid washing (AW) is proposed to remove alkali to improve the dealkalization efficiency of red mud. FT-AW tests were performed using red mud with oxalic acid (OA) and citric acid (CA) to examine the effect of FT cycles and eluent concentration on the dealkalization
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Rapid permafrost thaw under buried oil pipeline and effective solution using a novel mitigative technique based on field and laboratory results Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-01-04 Yapeng Cao, Wei Ma, Guoyu Li, Kai Gao, Changqing Li, Dun Chen, Yunhu Shang, Xiaobin Wei, Zhixiang Chen, Gang Wu, Pengchao Chen, Luyao Bai, Liyun Tang, Hailiang Jia, Jianwei Yue
The China–Russia crude oil pipeline (CRCOP) has been in operation for over 10 years. In order to obtain the necessary data for pipeline research and provide real-time warning for pipeline operation, an in-situ composite monitoring system of pipeline–permafrost interaction along the CRCOP was established. Monitoring results has shown that a thaw bulb develops around the CRCOP, urging consolidation in
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Mechanical behavior of steel fiber reinforced concrete at cryogenic temperatures: Characterization with 3D meso-scale modelling Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2023-12-27 Liu Jin, Likun Jia, Renbo Zhang, Wenxuan Yu, Xiuli Du
To investigate the mechanical properties of SFRC (Steel Fiber Reinforced Concrete) in low-temperature environments, a 3D mesoscale model approach was employed to simulate the mechanical behavior of SFRC specimens at cryogenic temperatures. The model considers SFRC a multiphase material composed of mortar, aggregate, ITZ (Interface Transition Zone), and steel fiber. Using the mesoscale modelling, the
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Influence of anionic polyacrylamide on the freeze–thaw resistance of silty clay Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2023-12-30 Jiale Yang, Shuangyang Li, Honggui Di, Deren Liu, Xu Wang, Yongchun Zhao
Freeze–thaw (FT) alternation can severely affect the properties of fine–grained soils, often leading to the failure of foundation backfill projects, such as open canals and roads in cold regions. To address these problems, a water–soluble anionic polyacrylamide (APAM) was used to improve the properties of fine–grained soils, particularly silty clay. This study aims to analyze the effects of the APAM
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Experimental investigation of the partitioning of radiation in the melt pond–ice–ocean system Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2023-12-26 Hang Zhang, Miao Yu, Peng Lu, Jiaru Zhou, Fei Xie, Qingkai Wang, Zhijun Li
To study the partitioning of solar radiation over the melting Arctic sea ice and address the lack of systematic measurements of the optical properties of melt ponds and the underlying ice, four experiments in non-Arctic regions were designed to explore the distribution of solar irradiance on pond surface, pond bottom, and underlying ice. These experiments also investigated the influence of different
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Small-scale computational fluid dynamics modelling of the wave induced ice floe-grease ice interaction in the Antarctic marginal ice zone Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2023-12-28 Rutger Marquart, Alfred Bogaers, Sebastian Skatulla, Alberto Alberello, Alessandro Toffoli, Carina Schwarz
Computational sea ice models have been developed to simulate sea ice formation, melt and motion characteristics on a regional scale. However, the highly dynamic sea ice behaviour in the Antarctic marginal ice zone (MIZ), the area where sea ice and ocean waves interact, still eludes reliable prediction. This is due to the complex sea ice composition consisting of relatively small and mobile ice floes
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Feasibility of winter construction for prefabricated subway station: Waterproof performance analysis of composite cross-section gasket treated by low temperature Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2023-12-26 Xiangxun Kong, Shaojun Wang, Wangyuan Zhang, Xianzhang Ling, Jian Zhao
The construction of prefabricated subway stations in northeastern China necessitates a focused investigation into the behavior of composite cross-section gaskets with ethylene propylene diene monomer (EPDM) and water swelling rubber (WSR) under low-temperature conditions. This research conducted experimental and numerical studies to analyze the mechanical and waterproof properties of WSR-EPDM gaskets
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Experimental study of natural convection and cooling capacity of closed crushed-rock layers affected by summer rainfall in cold regions Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2023-12-25 Yang Lv, Fenglei Han, Hang Cao, Yongqi Geng, Kaichi Qiu, Lu Cheng, Wei Yang, Kaiyu Deng
Climate-induced rises in air temperature and humidity on the Qinghai-Tibet Plateau modify the hydrothermal conditions of closed crushed-rock embankments (CRE). This alternation arises from the infiltration of summer rainfall, which is closely correlated with the cooling performance of the crushed-rock layers (CRL). Nevertheless, the cooling performance of the closed CRL during the summer rainfall season
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Numerical method used for the simulation of fluid–solid transitions based on the VOF and SAM models and prediction of snow distributions on large-span roofs Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2023-12-22 Jianshuo Wang, Xinyi Wang, Wei Ren, Zhihua Chen, Jiadi Liu, Zhuangzhuang Wang, Tinghao Meng, Hongbo Liu
During a snowfall, the surfaces of the snow beds on roofs change dynamically with time and wind conditions. The generation of body-fitted computational fluid dynamics grids for simulating dynamic snow surfaces using the moving-grid method remains challenging. Therefore, a numerical method was developed to simulate the fluid–solid transition based on the volume of the fluid model and solidification
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Estimation of unfrozen water content in frozen soils based on data interpolation and constrained monotonic neural network Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2023-12-17 Jiaxian Li, Junping Ren, Xudong Fan, Pengcheng Zhou, Yiqing Pu, Fanyu Zhang
Accurately predicting the unfrozen water content (UWC) in frozen soils is crucial for modeling various soil processes in cold regions. However, existing empirical and theoretical models suffer limitations due to oversimplified assumptions or limited applicable conditions. Meanwhile, data-driven approaches are typically challenged by insufficient high-quality data and poor alignment with the underlying
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Design, development and deployment of a novel sea spray collector for sea-spray flux measurements Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2023-12-19 Sushmit Dhar, Masoud Naseri, Hassan Abbas Khawaja, Kåre Edvardsen, Tiantian Zhu
The risk of sea-spray icing on vessels and marine structures in cold regions highlights the need for an accurate and robust marine-icing estimation model. To develop such a model, it is crucial to accurately determine the quantity of liquid water available for freezing on the structure, as it directly influences ice formation. As sea spray constitutes the primary source of liquid water contributing
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Assessment and enhancement of soil freezing characteristic curve estimation models Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2023-12-18 Jun Bi, Laifu Li, Zhenyu Liu, Zhijian Wu, Guoxu Wang
The soil freezing characteristic curve (SFCC) represents a vital parameter in cold regions. Special instruments and highly trained personnel must measure the SFCC experimentally, a process that is both cumbersome and labor-intensive. Consequently, several estimation models have emerged to indirectly gauge the SFCC, yet the effectiveness of these models has rarely been examined. This study scrutinized
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Uncertainty analysis of IceCube instrument to enhance accuracy of specific surface area measurements Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2023-12-22 Leena Leppänen
The specific surface area (SSA) is a measure of the snow microstructure and can be determined using an instrument called IceCube. IceCube measures the reflectance from surface of a snow sample with a 1310 nm infrared laser. In this study, the uncertainties associated with IceCube measurements of SSA were analyzed in two locations: Sodankylä, Finland and Queen Maud Land, Antarctica. The study tests