Article
Thermodynamics
Meng Wang, Xu Li, Xiangtian Xu
Summary: A new heat-pulse method with an average accuracy of around 3% was proposed in this study to measure soil ice content, addressing the challenge of real-time monitoring in cold regions. The method involves a doubleprobe sensor and calibration to establish a relation between the relation area and soil ice content, with successful verification on three types of soil.
APPLIED THERMAL ENGINEERING
(2021)
Article
Engineering, Environmental
Xufeng Lu, Feng Zhang, Weijun Qin, Hao Zheng, Decheng Feng
Summary: This study found that temperature gradient is the core driving force of soil frost heave, while the increase of deviator stress and confining pressure would limit its development. Additionally, the growth of warm end temperature would also restrain soil frost heaving.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2021)
Article
Engineering, Environmental
Wenqiang Zhang, Qihao Yu, Lei Guo, Tianchun Dong, Xinbin Wang, Jinchang Wang
Summary: In this study, a field experiment was conducted to analyze the heat collection performance of a solar circulating heating embankment system (SCHES) and the heating effect on the soil. Numerical simulations were also performed to discuss the effects of different buried forms and depths of the heat accumulation pipe (HAP) on the heating embankment. The results showed that the SCHES can provide a heating temperature of up to 70 degrees C, significantly reduce freezing depth, and decrease frost heave deformation compared to a normal embankment. The concept of an active heating embankment utilizing solar energy can be a reference for preventing and controlling frost heave in seasonally frozen regions.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2023)
Article
Computer Science, Interdisciplinary Applications
Bowen Tai, Zurun Yue, Shouchen Qi, Pengcheng Wang
Summary: This study examines the effectiveness of a new High-speed Railway (HSR) anti-frost cutting bed in a deep seasonally frozen ground region using monitoring data and numerical models, while discussing the impact of snow cover on soil water-heat state and causes of slope instability in cold regions.
COMPUTERS AND GEOTECHNICS
(2021)
Article
Geochemistry & Geophysics
Yongtao Wang, Boyuan Wang, Shoude Pang, Weihang Hua, Zhiqiang Ji, Dayan Wang
Summary: The research comprehensively studied the changes in soil characteristics during freezing with different initial water contents, showing that an increase in initial water content leads to a greater frozen depth, more complex structural formations, and other noticeable changes during the freezing process.
Article
Geochemistry & Geophysics
Yongtao Wang, Boyuan Wang, Shoude Pang, Weihang Hua, Zhiqiang Ji, Dayan Wang
Summary: The water content of the foundation soil plays a crucial role in the frost heave properties. This study investigates the effects of different initial water contents on frozen depth, cryostructure formation, and other freeze-thaw characteristics. The results show that increasing the initial water content leads to significant changes in the freezing behavior and ice segregation.
Article
Chemistry, Multidisciplinary
Seok Yoon, Dinh-Viet Le, Gyu-Hyun Go
Summary: The study conducted a fully coupled thermal-hydro-mechanical analysis to evaluate frost heave behavior in frozen soil and performed a parametric study to analyze the effects of major geotechnical properties. An artificial neural network model was developed to predict frost heave behavior accurately, with verification results showing a reliable accuracy even with test datasets.
APPLIED SCIENCES-BASEL
(2021)
Article
Geosciences, Multidisciplinary
Wanjun Huang, Xuesong Mao, Qian Wu, Shichen Zhao, Jianxun Zhang
Summary: This study investigates the frost heave characteristics of coarse-grained soil in a deep seasonal frozen soil zone through indoor tests. The results show that the freezing process can be divided into four stages and frost heave mainly occurs during the phase transition stage and slow freezing stage.
FRONTIERS IN EARTH SCIENCE
(2022)
Article
Thermodynamics
Haimin Wang, Zexu Zhu, Zhiyuan Ji, Feng Hu, Hao Lin
Summary: A one-dimensional heat transfer model is established to study the characteristics of internal heat source and temperature distribution of a cylindrical battery. The results show that the calculated temperature is close to the measured temperature at 40 degrees C ambient temperature, but there is a significant difference at -10 degrees C ambient temperature.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2023)
Article
Thermodynamics
Haijun Jeong, Hobin Son, Sungjoon Byun, Seounghwan Hyeon, Kwan-Soo Lee, Dong Rip Kim
Summary: An experimental study was conducted to investigate the phase change on a cryogenic cooling surface under forced convection conditions. Measurements were taken for the mass and surface temperature of frost, as well as the heat flux at the cooling surface. The study explored the heat and mass transfer analogy under cryogenic conditions. By using the modified analogy, the estimated mass differed by up to 8% from the experimentally measured mass under various conditions. The density and thermal conductivity of frost at cryogenic temperatures were derived through regression analysis, and the calculated values differed from the measured values by up to 9% and 11%, respectively. A model was developed based on the presented frost density and thermal conductivity correlations to predict heat and mass transfer and improve thermal performance on the cooling surfaces of various cryogenic devices.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2023)
Article
Engineering, Environmental
Yukun Ji, Guoqing Zhou, Veerle Vandeginste, Yang Zhou
Summary: Through the study of multiphase interactions and coupled THM mechanism, an intermittent freezing model has been established to effectively alleviate soil frost heave. The research suggests that the slower growth of ice lens due to the movement of the freezing front is the main reason for frost heave mitigation.
BULLETIN OF ENGINEERING GEOLOGY AND THE ENVIRONMENT
(2021)
Article
Thermodynamics
Ismael Sanchez-Calderon, Beatriz Merillas, Victoria Bernardo, Miguel Angel Rodriguez-Perez
Summary: Developing advanced, highly insulating materials for reducing heat losses in buildings is crucial. A new methodology for measuring the thermal conductivity of small prototypes of thermal insulating materials has been developed and validated in this study. The results demonstrate the accuracy of the self-developed method in determining the thermal conductivity of samples with small dimensions using a steady-state condition.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Engineering, Geological
Jiazuo Zhou, Wansheng Pei, Xiyin Zhang, Wanlin Liu, Changfu Wei
Summary: This study introduced an easy freezing ring test to assess frost susceptibility of soil, which showed differences in water migration and frost heave capabilities among different soil types and were influenced by initial water content and salt concentration. The freezing ring test is easy and time-saving, making it suitable for large engineering projects.
Article
Geosciences, Multidisciplinary
Alaa A. Masoud, Taiki Kubo, Katsuaki Koike
Summary: This research identifies the geothermal characteristics and control factors of the Gulf of Suez, and determines areas with high geothermal potential through three-dimensional interpolation of temperature, geothermal gradient, and heat flux borehole data. It also highlights the influence of faults on the geothermal resource and provides insights for efficient management of binary power generation and enhanced geothermal systems in the region.
NATURAL RESOURCES RESEARCH
(2023)
Article
Engineering, Environmental
Ruiqiang Bai, Yuanming Lai, Wansheng Pei, Mingyi Zhang
Summary: This study investigated the frost heave behavior of unsaturated silty clay through one-side freezing tests and revealed the phenomena of heat-water-vapor migration and frost heave. The results indicated that temperature variations can be divided into three stages, with the formation of a mix migration layer and segregated ice during freezing, while also resolving the confusion about frost heaving mainly occurring in the top layer of high-speed railway subgrade.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2022)
Article
Engineering, Environmental
Mikael Schlumpf, Jordy Hendrikx, John Stormont, Ryan Webb
Summary: The formation of wet-snow slab avalanches is related to the liquid water content and strength of the snow layers. However, current studies disagree on this relationship and there is limited understanding of snow layers with a saturation level of θ=7% and above.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2024)
Article
Engineering, Environmental
William R. Jacobson
Summary: This study investigates the kinematics of deformation in debris bands associated with an overdeepened basin in Iceland. The research reveals the presence of multiple fabric types, suggesting a complex deformation history. Furthermore, pure shear-dominated strain was observed in an ice-free sediment ridge on the glacier surface.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2024)
Article
Engineering, Environmental
Shanpeng Cao, Caichu Xia, Shuwei Zhou, Yao Zhang
Summary: Precise evaluation of frost heaving force and surrounding rock plastic zone is crucial for preventing freezing damage in cold-region tunnels. This paper presents a new elastoplastic solution for tunnel frost heaving force considering double non-uniform frost heave and intermediate principal stress, which can better guide the frost resistance design of tunnels in cold regions.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2024)
Article
Engineering, Environmental
Sina Niazi, Aimane Najmeddine, Maryam Shakiba
Summary: This study investigates the mechanical response and damage of asphalt concrete under freezing temperatures. A coupled thermo-hydro-mechanical constitutive framework is proposed and validated through simulations and experiments. The effects of microstructural constituents on the mechanical response are also studied through parametric analysis.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2024)
Article
Engineering, Environmental
Shi-chun Cai, Xiao-hua Yang, Fei Ye
Summary: A calculation method based on the Winkler foundation model is proposed for analyzing the stress and deformation in excavation support structures in seasonally frozen soil regions. The method considers various factors and has been validated to exhibit good applicability.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2024)
Article
Engineering, Environmental
Guanjun Wei, Chuanjin Lei, Maoning Gao, Hongyu Zhou, Xin Li, Chaoyue Zhang
Summary: This study introduces a novel approach to improve the accuracy of deformation prediction in frozen soil areas by integrating post-processing deformation from InSAR with a frost heave model using the EnKF assimilation algorithm. Experimental results show that this approach reduces the RMSE to 0.247 mm, indicating its high feasibility and practicality.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2024)
Article
Engineering, Environmental
Cheng Xu, Yugui Yang, Shanshan Hou, Hui Zhang, Chenxiang Li
Summary: This study investigates the properties and characteristics of frozen loess through nuclear magnetic resonance (NMR) tests and flexural tests. The results show that as the temperature decreases, the pore ice content in frozen loess rapidly increases, making the phase transition of residual unfrozen water difficult. The flexural strength, toughness, and roughness of the fracture surface of frozen loess vary under different freezing temperatures and water content conditions.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2024)
Article
Engineering, Environmental
Jianguo Lu, Wansheng Pei, Mingyi Zhang, Xusheng Wan, Jiacheng Zhang, Yindong Wang
Summary: This paper investigates the effects of freeze-thaw cycles and salt erosion on the mechanical and microstructural properties of concrete modified with nano-TiO2 and nano-SiO2. The results show that the added nanoparticles and environment media significantly influence the overall performance of concrete samples. The SCF has the greatest influence on degradation, and the compressive strength of NS-modified concrete is lower than that of NT-modified concrete. The optimal nanoparticles ratios for NS and NT modified concretes are 1% and 2%, respectively. Furthermore, NS modification leads to better filling effect on pore structure and larger crystals on the concrete surface compared to NT modification. In the first 90 freeze-thaw cycles, the gel micro-pores increase while the macro-pores decrease, but this trend reverses within the 90-150 cycles. This research provides important insights into the erosion and frost resistance of nano-concretes in marine and cold region engineering.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2024)
Article
Engineering, Environmental
Florian McLelland, Floris van Breugel
Summary: In this study, a proof-of-concept approach for automatically assessing qualitative aspects of snow type while skiing using strain sensors is explored. The algorithm developed achieves a 97% accuracy in correctly assigning qualitative labels to different segments of a skiing trajectory. This method has the potential for improving quantitative characterization of ski performance, providing snow-specific recommendations, and developing skis with automated stiffness tuning based on snow type.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2024)
Article
Engineering, Environmental
Purushottam Kumar Garg, Aparna Shukla, Mohd. Farooq Azam
Summary: This study remotely investigates 25 well-distributed glaciers in the western Himalaya and finds that these glaciers were in an overall retreating phase from 1990 to 2015. The study also reveals changes in glacier dynamics before and after 2000, including reduced terminus retreat and deglaciation rates, increased surface velocity, and the presence of more glacial lakes and supraglacial debris. The study highlights the importance of topography and local surface conditions in the heterogeneity of glacier response to climate.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2024)
Article
Engineering, Environmental
Junru Chen, Shuna Feng, Lang Jia, Jiagui Hou, Miles Dyck, Xiaobin Li, Qingbai Wu, Hailong He
Summary: The heat pulse method is commonly used to measure thermal properties of frozen soil, snow, or glaciers, but the phase change caused by ice melting affects the measurement accuracy. This study observed the thermal response of ice under different heating strategies and compared numerical simulations and analytical solutions. The results showed that optimizing phase change parameters improved accuracy and the numerical method effectively improved the calculation accuracy of ice thermal conductivity.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2024)
Article
Engineering, Environmental
Kazuma Fukui, Chiemi Iba
Summary: By studying the evolution of pore water pressure in brick walls during cyclic freezing and thawing, we found that the water pressure in a south facing wall increases significantly during the night in cold regions. Incomplete freeze-thaw cycles are more damaging to building materials than a monotonous repetition of complete freezing and thawing.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2024)
Article
Engineering, Environmental
Yasir A. Malik, Norbert Karpen, Elmar Bonaccurso, Ilia Roisman, Jeanette Hussong, Philippe Villedieu
Summary: This study quantitatively analyzes the accretion and shedding phenomena caused by ice crystal icing on heated and non-heated surfaces. Experimental findings show the accretion threshold and shed areas under different parametric conditions. The results not only consolidate previous studies, but also identify new phenomena on unheated surfaces with mixed-phase conditions at negative wet bulb temperatures and positive wet bulb temperatures.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2024)
Article
Engineering, Environmental
Ezieddin Madi, Kevin Pope, Weimin Huang
Summary: This study experimentally investigates the impact of ice thickness on the energy required for de-icing. It is found that an increase in ice thickness at the heater's edge leads to a significant increase in de-icing duration. The results suggest that employing a correlation between ice thickness at different locations can help reduce the thermal energy needed for ice removal from airfoil or cylindrical surfaces.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2024)
Article
Engineering, Environmental
K. Riska, R. Bridges
Summary: Understanding the properties and parameters of ice growth models is crucial for assessing the impact of ice on facilities and ship navigation. This paper investigates the theoretical formulations for ice growth and compares calculated results with measurement data. The study focuses on level sea ice growth models and their application in brash ice consolidation modeling, considering factors such as snow cover, salinity, porosity, and atmospheric boundary including wind effect. The findings contribute to a better understanding of ice growth and consolidation processes, informing modeling techniques for marine design and operations.
COLD REGIONS SCIENCE AND TECHNOLOGY
(2024)