Synergistic combination of arbuscular mycorrhizal fungi and plant growth-promoting rhizobacteria modulates morpho-physiological characteristics and soil structure in Nitraria tangutorum bobr. Under saline soil conditions
December 2022
Nitraria tangutorum Bobr., a typical xero-halophyte, can be used for vegetation restoration and reconstruction in arid and semiarid regions affected by salinity. However, global climate change and unreasonable...
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Effect of the frozen layer on the stability of cut soil slopes during seasonal freezing and thawing
October 2022
Research on the stability of soil slopes in seasonally frozen regions has mainly focused on slope failures during the thawing window. There are few studies on slope stability during the freezing window...
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Thermal-hydro-mechanical coupled analysis of unsaturated frost susceptible soils
August 2022
Damage caused by frost heave leads to costly maintenance in cold regions, like Hokkaido, Japan. Therefore, the study of the frost mechanism with experimental and numerical methods has been of great...
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Discussion on pile axial load test methods and their applicability in cold regions
August 2022
The measurement of pile axial load is of great significance to determining pile foundation design parameters such as skin friction and end bearing capacity and analyzing load transfer mechanisms. Affected...
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Experimental study on mesostructural damage evolution of sandstone subjected to freeze-thaw cycling under uniaxial compression
October 2022
In perennially frozen or seasonally frozen soil regions, freeze-thaw cycling adversely impacts the mechanical properties of rock mass, resulting in landslides, rock erosion, and other geological disasters....
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Triaxial test on glass beads simulating coarse-grained soil
August 2022
It is feasible to study the mechanical characteristics of coarse-grained soil by simulated granular materials such as glass beads. In this paper, 3 mm diameter glass beads are used to conduct drained...
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The hydrothermal changes of permafrost active layer and their impact on summer rainfall-runoff processes in an alpine meadow watershed, northwest China
December 2022
The freezing-thawing variation of permafrost active layer increases the complexity of rainfall-runoff processes in alpine river basins, Northwest China. And alpine meadow is the prominent ecosystem...
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Temporal and spatial analysis of vegetation fire activity in the circum-Arctic during 2001–2020
February 2023
Vegetation fires become the concern worldwide due to their substantial impacts on climate and environment, and in particular in the circum-Arctic. Assessing vegetation fires and associated emissions...
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Identifying hot spots of long-duration extreme climate events in the northwest arid region of China and implications for glaciers and runoff
December 2022
China's Northwest Arid Region (NAR), with dry and cold climate conditions and glaciers widely developed in the high mountains, provides vital water resources for Asia. The consecutive cold, warm, dry...
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Purification of heavy metal chromium in saturated sand by artificial freezing: Mechanism and method optimization
December 2022
Heavy metal pollution of soil has become one of the most common hazards in human development. The artificial freezing method, especially the progressive freezing method, can reduce heavy metal pollutants...
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Study on stability of permafrost slopes during thawing
October 2022
A numerical simulation platform that analyzes the variation of the slope factor of safety with time instantaneously is proposed based on heat conduction theory to study the law of stability development...
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Sand control effect of HDPE sandbreak nets with different porosity structure
December 2022
Straw checkerboard sand barriers with a porous structure that consists of a pervious upper portion and a dense lower portion are widely used to achieve great sand control effect. Considering this, and...
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Numerical simulation of frost jacking response of a single pile considering hydro-thermo-mechanical coupling
October 2022
Permafrost is widely distributed in China and around the world. In permafrost regions, soil frost heave and thawing are severe and frequent, and can destabilize pile foundations. To this end, a finite...
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Application of automated cone penetrometer for railway investigation using correlations with DCPI and deflection modulus
August 2022
Portable in-situ devices have been used for characterizing low accessible field, such as the railway subgrade. In this study, the automated cone penetrometer (ACP) was designed for the application on...
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Numerical modelling of vibration response in loess hills due to a high-speed train on railway viaduct
October 2022
In order to accurately analyze vibration characteristics and site effects of loess hills under moving load of a high-speed train, four types of loess hill models under railway viaduct was established...
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Numerical study on surrounding rock mass temperature field of Kangding tunnel no. 2 considering wind flow
October 2022
Based on the Kangding Tunnel No. 2 project, this study analyzes the heat exchange between air and the rock mass surrounding the tunnel under wind flow by the finite difference method. The influence...
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A spring-like interface between saturated frozen soil and circular tunnel lining under the moving load in cold regions without considering frost heave
December 2022
The vibration of underground or buried piping during construction and long-term operation causes secondary disasters, and becomes more complex when tubes are buried in cold regions. The interface between...
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Numerical evaluation of the effectiveness of frost heave mitigation strategies for chilled arctic gas pipelines
October 2022
To prevent the thawing of ice-rich permafrost, it is suggested that gas should be transported in a chilled state (below the freezing temperature) in pipelines buried in permafrost. However, frost heave...
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The particular species determining spatial heterogeneity in shady and terrace on the Qinghai-Tibetan Plateau, China
February 2023
Spatial patterns of plant species and patchy community are important properties in grasslands. However, research regarding spatial patterns of formed patches with various species has not fully advanced...
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The influence of the underpassing frozen connecting passage on the deformation of the existing tunnel
August 2022
Based on the engineering background of the contact channel between Shangyang and Gushan of Fuzhou Metro Line 2 undercrossing the existing tunnel line, the freezing temperature field of the contact channel,...
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Influence of freeze tube deviation on the development of frozen wall during long cross-passage construction
August 2022
This paper investigates the influence of the deviation in freeze pipe installation on the development of the frozen wall in long cross passages by numerical simulation with ANSYS software. The study...
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Frozen curtain characteristics during excavation of submerged shallow tunnel using Freeze-Sealing Pipe-Roof method
August 2022
The Freeze-Sealing Pipe-Roof (FSPR) method, which has been applied for the first time in the Gongbei Tunnel of the Hong Kong-Zhuhai-Macao Bridge, is a new approach of tunnel pre-support that allows...
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Impact of a retrogressive thaw slump on surrounding vegetation communities in the Fenghuoshan mountains, Qinghai-Tibet Plateau
February 2023
Under global warming, permafrost around the world is experiencing degradation which is especially so on the Third Pole, the Qinghai-Tibet Plateau (QTP), China. Retrogressive thaw slump (RTS) is one...
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Thermal–moisture dynamics and thermal stability of active layer in response to wet/dry conditions in the central region of the Qinghai–Tibet Plateau, China
February 2023
The amount of rainfall varies unevenly in different regions of the Qinghai-Tibet Plateau, with some regions becoming wetter and others drier. Precipitation has an important impact on the process of...
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Field observation of the thermal disturbance and freezeback processes of cast-in-place pile foundations in warm permafrost regions
February 2023
The bearing capacity of pile foundations is affected by the temperature of the frozen soil around pile foundations. The construction process and the hydration heat of cast-in-place (CIP) pile foundations...
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