39 Result(s)
within
**g-Tian **e
Earth Sciences, general
Geography, general
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Article
Numerical simulation of flow field deposition and erosion characteristics around bridge-road transition section
Wind-sand flow generates erosion and deposition around obstacles such as bridges and roadbeds, resulting in sand damage and endangering railway systems in sandy regions. Previous studies have mainly focused on...
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Article
Tunnelling performance prediction of cantilever boring machine in sedimentary hard-rock tunnel using deep belief network
Evaluating the adaptability of cantilever boring machine (CBM) through in-depth excavation and analysis of tunnel excavation data and rock mass parameters is the premise of mechanical design and efficient exca...
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Article
Rock characteristics and dynamic fragmentation process of the 2018 Daanshan rockslide in Bei**g, China
This study investigated the failure mechanism associated with the rock mass structure and the dynamic fragmentation process of blocky rocks of the 2018 Daanshan rockslide that occurred on 11 August, 2018. It w...
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Article
Negative Poisson’s ratio and peripheral strain of an NPR anchor cable
Materials with a negative Poisson’s ratio effect perform significantly better than traditional materials for rock mass impact resistance, shear resistance, and energy absorption. Based on these advantages, a n...
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Article
Formation and reactivation mechanisms of large-scale ancient landslides in the Longwu River basin in the northeast Tibetan Plateau, China
The northeastern Tibetan Plateau exhibits steep topography and strong internal or external dynamic geological effect and is frequently subjected to strong earthquakes and heavy rainfall. The geological evoluti...
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Article
Reconstructed annual glacier surface mass balance in the Ányêmaqên Mountains, Yellow River source, based on snow line altitude
Annual mass balance is an important factor that reflects glacier change and glacier meltwater resources. In this study, we analyzed the changes in glacier area, snow line altitude (SLA) and surface elevation i...
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Article
Cumulative damage effect on debris slopes under frequent microseisms
Debris slopes are widely distributed across the Three Gorges Reservoir area in China, and seasonal fluctuations of the water level in the area tend to cause high-frequency microseisms that subsequently induce ...
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Article
Impacts of anthropogenic and biophysical factors on ecological land using logistic regression and random forest: A case study in Mentougou District, Bei**g, China
Ecological land is an important guarantee to maintain urban ecological security and sustainable development. Although increasing studies have been brought to ecological land, with few explorations of the relat...
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Article
Soil moisture response to land use and topography across a semi-arid watershed: Implications for vegetation restoration on the Chinese Loess Plateau
Soil moisture is a limiting factor of ecosystem development in the semi-arid Loess Plateau. Characterizing the soil moisture response to its dominant controlling factors, such as land use and topography, and q...
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Article
Multi-scale analysis of ecosystem services trade-offs in an ecotone in the Eastern Margin of the Qinghai-Tibetan Plateau
Understanding the trade-offs among ecosystem services (ESs) at multiple scales is a key challenge to effective environmental management. However, the scale effect of ESs trade-offs in the Qinghai-Tibetan Plate...
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Article
Hydrological characteristics and changes in the Nu-Salween River basin revealed with model-based reconstructed data
The Nu-Salween River (NSR), the longest free-flow river in Southeast Asia, plays an irreplaceable role in social development and ecological protection. The lower NSR region is particularly valuable as it is in...
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Article
Variations of suction and suction stress of unsaturated loess due to changes in lignin content and sample preparation method
Unsaturated loess in natural sites loses stability as the overburden load continuously increases. Traditional soil modifiers such as cement and fly ash affect the surrounding environment. A new type of materia...
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Article
Potential sediment sources identification of debris flows in the Jiangjia Gully, China
t is of great significance for gully prevention and management to identify the potential sediment source of debris flow. Debris flow in a gully always originates from tributaries that have different gravity po...
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Article
Deformation of the Zhangjiazhuang high-speed railway tunnel: an analysis of causal mechanisms using geomorphological surveys and D-InSAR monitoring
On 18 January 2016, the Zhangjiazhuang high-speed railway tunnel in Ledu, Qinghai Province, China, underwent serious deformation and structural damage. A crack formed at the top of the tunnel and the concrete ...
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Article
Effects of soil conservation practices on soil erosion and the size selectivity of eroded sediment on cultivated slopes
Soil conservation practices can greatly affect the soil erosion process, but limited information is available about its influence on the particle size distribution (PSD) of eroded sediment, especially under na...
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Article
Model test on support scheme for carbonaceous slate tunnel in high geostress zone at high depth
The Muzhailing extra-long highway tunnel and corresponding inclined shafts in Lanzhou, Gansu Province, China passes through structurally complex carbonaceous slate that is under high ground stress. Rationally-...
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Article
Effect of freeze-thaw cycles on soil engineering properties of reservoir bank slopes at the northern foot of Tianshan Mountain
The instability of soil bank slopes induced by freeze-thaw cycles at the northern foot of Tianshan Mountain is very common. The failure not only caused a large amount of soil erosion, but also led to serious r...
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Article
Artificial Neural Network-based prediction of glacial debris flows in the ParlungZangbo Basin, southeastern Tibetan Plateau, China
Accurate prediction on geological hazards can prevent disaster events in advance and greatly reduce property losses and life casualties. Glacial debris flows are the most serious hazards in southeastern Tibet ...
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Article
Creep damage properties of sandstone under dry-wet cycles
Rock creep properties can be used to predict the long-term stability in rock engineering. In reservoir bank slopes, sandstones which are frequently used in the bank slope undergoing long-term effects of dry-we...
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Article
Stability analysis of open-pit gold mine slopes and optimization of mining scheme in Inner Mongolia, China
The geological structure of the Changshanhao open-pit mine in Urad Middle Banner, Inner Mongolia, China is extremely complicated, and slope instability has frequently occurred in various forms, such as wedge s...
