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A nonlinear elastic-strain hardening model for frozen improved sandy soil under uniaxial compression loading condition Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-04-15 Bo Liu, Yanqing He, Yanhui Han, Guoxuan Wang, Rong Gao, Dongyang Li
Artificial freezing is one of the most effective methods in the excavation of water-rich soils. This work aims at investigating the influence of cement‑sodium silicate grout (C-S grout) and organic polymer stabilizer (OPS) on the uniaxial compressive strength (UCS), stress-strain curve, and unfrozen water content of frozen sandy soil. A series of uniaxial compression tests and nuclear magnetic resonance
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Simplified dynamic calculation model and shaking table test verification of thermal anchor pipe-permafrost system Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-04-10 Xiaolei Wu, Jianhua Dong, Pengfei He, Shilin Su, Lu Wang
To study the seismic response of permafrost slopes supported by the thermal anchor pipe during different freeze-thaw periods, the simplified dynamic calculation model of the thermal anchor pipe permafrost system is established, considering the characteristics of freeze-thaw stratification of permafrost, the additional mass effect of the thawed soil layer, the fluid-solid interaction between the cooling
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Influence of debris cover on the glacier melting in the Himalaya Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-04-10 Shakil Ahmad Romshoo, Basharat Nabi, Reyaz Ahmad Dar
Debris cover either enhances or reduces glacier melting, thereby modulating glacier response to increasing temperatures. Debris cover variation and glacier recession were investigated on five glaciers; Pensilungpa (PG), Drung Drung (DD), Haskira (HK), Kange (KG) and Hagshu (HG), situated in the topographically and climatically similar zone in the Zanskar Himalaya using satellite data between 2000 and
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Damage characteristics of sandstone subjected to freeze–thaw cycles under different stress paths Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-04-10 Sizhe Zhou, Zhandong Su, Yao Niu, Mengyuan Li, Yangnong Zeng
The damage characteristics and failure modes of rock specimens subjected to different freeze–thaw (FT) cycles are vital to rock engineering in cold regions. Hence, in this study, the physical and mechanical parameters of sandstone specimens under different FT cycles were measured, and their deterioration laws were analyzed. The damage features of the rocks in different FT states under loading along
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Investigating the Constitutive Model of Frozen Supersulfate Saline Soil: Insights from Fractional Calculus Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-04-05 Sheng Li, Hongbo Li, Xinrui Kang, Long Shan, Zi Wang, Xuguang Dong, Libo Wu
The study of the mechanical properties of frozen saline soil is one of the key issues in addressing the design of infrastructure in cold regions. This research focuses on the supersulfated saline soil of the Ningxia Yellow River Irrigation Area in China, conducting triaxial tests under negative temperatures (−5, −10, −15 °C, and − 20 °C) with varying water contents (12%, 16%, 20%). Based on fractional
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Laboratory study on the frost-proof performance of a molecular vibration infrared Nano-thermoprobe (MVINT) embankment in seasonally frozen ground regions Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-04-03 Zhijian Wu, Guoxu Wang, Jun Bi, Wang Cao, Chengxin Chu, Yu Lu, Tian Sun, Bowen Tai
Frost heave significantly affects the stability of embankment in seasonally frozen ground regions. Most previous studies focused on the investigation of the passive method for controlling or mitigating frost heave, but its effectiveness diminishes with time. Therefore, proactive method is proposed to address frost heave. In this study, a novel embankment with molecular vibration infrared nano-thermoprobe
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Water transfer in building materials over capillary saturation during freezing Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-03-30 Kazuma Fukui, Satoru Takada
The risk of frost damage to building materials is strongly dependent on the water content, particularly when the water content is high. Therefore, to understand the moisture behavior of materials with high water content is essential to predict the frost damage risks of buildings. While little liquid water transfer takes place over the capillary saturation under unfrozen conditions, the pressure drop
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Thinning and dynamics of the glacier terminus at the Pasterze Glacier (Austria), 2016–2021 Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-03-29 Gernot Seier, Jakob Abermann, Matthias Wecht, Anton Neureiter, Wolfgang Sulzer, Andreas Kellerer-Pirklbauer
As a result of global warming, glaciers worldwide recede and lose mass. Glacier ablation is influenced by surface characteristics, in particular the existence of debris cover. The evolution of glaciers may also be influenced by the existence of proglacial lakes, which are worldwide increasing in number and size. We examine the recent changes of the terminus of Pasterze Glacier by discussing the thinning
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Investigation of the dynamic ascent characteristics of ice core during polar core drilling Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-03-29 Ziyang Hou, Yongsheng Liu, Qingsheng Meng, Haoran Xu, Nan Liang, Gansheng Yang
In polar ice core drilling, continuous coring with air reverse circulation (CCARC) technique can increase the drilling rate, reduces pollution, and prevents air circulation loss. Dynamic collisions occur between ice chips and ice core in the drilling process, resulting in changes in the ice core ascent characteristics. Based on this, the Computational Fluid Dynamics-Discrete Element Model (CFD-DEM)
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Effect of freeze-thaw cycles on the mechanical performance of wheat straw biomass ash modified soil Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-03-28 Zhengfa Chen, Xibin Liu, Quanmin Li, Heng Wu, Jiahao Zhang
In cold regions, freeze-thaw cycles (FTCs) can alter the properties of soil used as a foundation filler, leading to failures in foundation engineering. The increase in biomass power plants has resulted in a significant amount of waste biomass ash, causing negative environmental impacts. To address these issues, waste wheat straw biomass ash (WSBA) is harnessed to enhance the properties of silty clays
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Research on ice shedding and broken conductor in tower-line system based on CR method Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-03-28 Xiaohui Liu, Jiabo Lu, Zhongfei Ye, Chuan Wu, Bo Zhang, Zhongbin Lv
In cold climates, the damage to the transmission tower-line system is usually caused by ice shedding, broken conductors, and broken ground wires. To replicate the ice shedding and broken conductor scenarios more accurately and expeditiously within the transmission tower-line system, we have engineered a finite element computational program leveraging the co-rotational theory method, utilizing the C++
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Bevameter pressure-sinkage testing on snow Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-03-27 Joonas Mähönen, Nina Lintzén, Johan Casselgren
Pressure-sinkage tests for determining vehicle sinkage on soft soils can be done using a bevameter. In this study, pressure-sinkage tests were performed on snow, which, like soil, is a granular material. However, unlike soil, snow layers are inhomogeneous with varying properties. For tracked vehicles, the shape of the track print is rectangular, which is why rectangular plates are often used for pressure-sinkage
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Microscopic mechanism of plastic heterogeneous deformation of columnar-grained polycrystalline ice Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-03-26 Huiling Dai, Shaocheng Di, Yanzhuo Xue
Studying ice deformation starting from crystal scale can provide insight into the microscopic mechanisms of ice deformation. In this paper, a crystal plasticity constitutive model of ice considering the dislocation slip mechanism and grain-size dependence was implemented within the finite element framework, and a modeling approach starting from ice single crystals based on the crystal plasticity finite
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The use of terrestrial monoscopic time-lapse cameras for surveying glacier flow velocity Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-03-23 Niccolò Dematteis, Fabrizio Troilo, Riccardo Scotti, Davide Colombarolli, Daniele Giordan, Valter Maggi
Glacier flow velocity is crucial information to assess the impact of global warming on glaciers since it is related to the ice thickness, its variations provide information on mass balance and, in general, on the current state of glacier “health”. Moreover, flow anomalies are often an indicator of glacier instabilities. Therefore, more attention has been dedicated to surveying glacier kinematics. Historically
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Effect of the experimental parameters on the ice-asphalt adhesion strength and corresponding theoretical model based on the energy-balanced principle Cold Reg. Sci. Technol. (IF 4.1) Pub Date : 2024-03-21 Yujin Yao, Yunhao Jiao, Wencai Zhao, Heping Qiu, Suining Zheng, Huaxin Chen, Yongchang Wu
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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
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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
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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 J. Chris McCaslin, T. Dylan Mikesell, Hans-Peter Marshall
Accurate knowledge of snow mechanical properties, including Young's modulus, shear modulus, Poisson's ratio, and density, is critical to many areas of snow science and to snow-related engineering problems. To facilitate the assessment of these properties, an innovative non-contacting laser ultrasound system (LUS) has been developed. This system acquires ultrasound waveform data at frequencies ranging
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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
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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
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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
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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