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Bowen Kong, Fan Xia, Bingqi Yu, Tangdai Xia and Zhi Ding
Artificial freezing methods can help highlight the mechanical properties of marine clay. The construction of cross passages in metro tunnels employs the freezing method. Freeze?thaw circulation, which is part of the process, affects the engineering prope...
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Ying Zhao, Bingcheng Si, Hailong He, Jinghui Xu, Stephan Peth and Rainer Horn
Accurate simulation of soil water and heat transfer is critical to understand surface hydrology under cold conditions. Using an extended freezing code in HYDRUS-1D (freezing module), this study was conducted: (1) to evaluate the freezing module using fie...
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Ying Zhao, Bingcheng Si, Hailong He, Jinghui Xu, Stephan Peth, Rainer Horn
Pág. 1 - 18
Accurate simulation of soil water and heat transfer is critical to understand surface hydrology under cold conditions. Using an extended freezing code in HYDRUS-1D (freezing module), this study was conducted: (1) to evaluate the freezing module using fie...
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Elena Bragar, Yakov Pronozin, Askar Zhussupbekov, Alexander Gerber, Assel Sarsembayeva, Tymarkul Muzdybayeva and Ulbossyn Zhangabilkyzy Sarabekova
Destructuring settlements due to frost heave during the structures? exploitation are often not taken into account at the designing stage, although they are indirectly related to the bearing capacity of the soils. The objective of this research was analyz...
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Lei Chen, Dongqing Li, Feng Ming, Xiangyang Shi and Xin Chen
In cold regions, hydraulic conductivity is a critical parameter for determining the water flow in frozen soil. Previous studies have shown that hydraulic conductivity hinges on the pore structure, which is often depicted as the pore size and porosity. Ho...
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Qiang Fu, Renjie Hou, Tianxiao Li, Peiru Yan, Ziao Ma
Pág. 1 - 17
Snow cover is the most common upper boundary condition influencing the soil freeze-thaw process in the black soil farming area of northern China. Snow is a porous dielectric cover, and its unique physical properties affect the soil moisture diffusion, he...
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Torsten Starkloff, Rudi Hessel, Jannes Stolte and Coen Ritsema
In the Nordic countries, soil erosion rates in winter and early spring can exceed those at other times of the year. In particular, snowmelt, combined with rain and soil frost, leads to severe soil erosion, even, e.g., in low risk areas in Norway. In sout...
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Chunyan Miao, Junfeng Chen, Xiuqing Zheng, Yongbo Zhang, Yongxin Xu and Qi Du
The exchange between shallow groundwater and soil water is unusually strong during freeze-thaw periods. The purpose of this study is to determine the effect of four different groundwater table depths (GTDs) and two soil textures on soil water moisture mi...
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Bo Wang, Jun Hu, Xiaoqi Lin and Hui Zeng
In this study, the engineering background of No. 2 complex connecting passage of Binhu Road Station/Jinhu Square Station of Nanning Metro Line 3 is investigated, where the artificial ground freezing technique is adopted. A three-dimensional finite elemen...
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Xinshan Zhuang, Benchi Yang and Heyi Jin
Expanded soils are widely distributed in Xinjiang, China, so roadbeds will inevitably pass through the areas of the expansive soil during road construction. While Xinjiang belongs to the seasonal frozen region, subjected to a freeze?thaw cycle, mud pumpi...
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Bicheng Zhou, Anatoly V. Brouchkov and Jiabo Hu
Frost heaving in soils is a primary cause of engineering failures in cold regions. Although extensive experimental and numerical research has focused on the deformation caused by frost heaving, there is a notable lack of numerical investigations into the...
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Artyom V. Gusarov, Aidar G. Sharifullin and Mikhail A. Komissarov
For the first time, contemporary trends in water discharge, suspended sediment load, and the intensity of overall erosion in the river basins of the North Caucasus region, as one of Russia?s most agriculturally developed geographic areas, were identified...
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Qiyu Bai, Jie Liu, Yong Wang, Haoyuan Du and Bin Wang
In seasonally frozen soil regions, the influence of temperature change on reinforced-soil engineering cannot be ignored. In particular, the mechanical properties of the reinforced-soil interface have an important impact on the overall stability and long-...
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Riccardo Bonanno, Nicola Loglisci, Silvia Cavalletto and Claudio Cassardo
Soil moisture changes are generally due to external factors (precipitation, evaporation, etc.) and internal forces (gravitational force, capillarity, transpiration, etc.). When soil temperatures remain below 0 °C for a long time (hours or even entire con...
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Junfeng Chen, Yizhao Wei, Xiping Zhao, Jing Xue, Shuyuan Xu and Qi Du
Straw mulching is an effective agricultural technology to reduce soil water loss in arid and semi-arid areas. Herein, the soil temperature and soil water content of bare land (LD) and 5 cm (JG5), 10 cm (JG10), 15 cm (JG15), 20 cm (JG20) and 30 cm (JG30) ...
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Chunyan Miao, Junfeng Chen, Xiuqing Zheng, Yongbo Zhang, Yongxin Xu, Qi Du
Pág. 1 - 12
The exchange between shallow groundwater and soil water is unusually strong during freeze-thaw periods. The purpose of this study is to determine the effect of four different groundwater table depths (GTDs) and two soil textures on soil water moisture mi...
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M. Andrés Abellan,C. Wic Baena,F.A. García Morote,M.I. Picazo Cordoba,D. Candel Pérez,M.E. Lucas-Borja
Pág. 379 - 388
Soil storage method may alter enzymatic activity being storage conditions of the soil samples prior to analysis decisive for the results. Studies made on freshly collected soils are generally preferred. However it is always not possible due to practical ...
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Nimazhap Badmaev and Aleksandr Bazarov
The monitoring network for the measurement of atmospheric and soil climate parameters was created at the southern boundary of the permafrost zone within the territory of the Republic of Buryatia, Russian Federation. Based on the obtained data, the proces...
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Leilei Han, Haibin Wei, Yong Zhang, Ji Zhang and Fuyu Wang
In order to achieve the purpose of subgrade frost damage control and waste utilization, this paper proposes a specific kind of composite subgrade structure which is suitable for subgrade in seasonal frozen regions, especially wet subgrade. The composite ...
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Gleb Kraev, Ernst-Detlef Schulze, Alla Yurova, Alexander Kholodov, Evgeny Chuvilin and Elizaveta Rivkina
Evidences of highly localized methane fluxes are reported from the Arctic shelf, hot spots of methane emissions in thermokarst lakes, and are believed to evolve to features like Yamal crater on land. The origin of large methane outbursts is problematic. ...
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