Study on Mechanism and Verification of Columnar Penetration Grouting of Time-Varying Newtonian Fluids

Zhao, Xuguang; Yang, Zhiquan; Meng, Xiangrui; Wang, Shaobin; Li, Rui; Xu, Hanhua; Wang, Xiangpeng; Ye, Changwen; Xiang, Tianbing; Xu, Weibin; Chen, Junzhi; Wang, Ping; Yuan, Jinke; Li, Xiaohui

doi:10.3390/pr11041151

Cited by 21 publications

(7 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…the main cause of soil erosion (Zhou and Wang, 1992;Li et al, 2010;Yang et al, 2023a), and are also an important factor in the occurrence of landslides, debris flows, and other geological disasters (Liu et al, 2023;Yang et al, 2023b;Zhao et al, 2023). Loess mudflow is a common geological disaster in the Loess Plateau.…”

mentioning

confidence: 99%

Effect of initial water content on soil failure mechanism of loess mudflow disasters

Yang

Chen

Zhang³

et al. 2023

Front. Ecol. Evol.

Self Cite

View full text Add to dashboard Cite

The frequency of mudflow disasters induced by rainfall in the Loess Plateau is increasing with the occurrence of global warming. The initial water content is one of the basic properties of soil, which affects the initiation of loess mudflow. In this work, the field study of the debris flow gullies in Yan’an City, Shaanxi Province, China, was conducted, and the main factors that induce gully loess mudflow were summarized. Based on the investigation results, a flume model was designed to carry out flume tests with different initial soil water contents. The experimental results demonstrate the following. (1) Different initial soil water contents lead to different soil failure models. The damage of soil by water flow when the soil water content is in the range of 0−5% is mainly gully erosion; that within the range of 10−15% is mainly rill surface erosion; that within the range of 20−25% is mainly dam breach failure. (2) When the water content of loess is equal to or less than 5% or equal to or greater than 20%, soil can promote the formation of loess mudflow, and the destruction of soil is more likely to cause mudflow disasters. In contrast, when the water content is within 10−15%, loess mudflow is not easily produced. The research results of the initial water content provide not only theoretical support for the study of loess mudflow disasters, but also a reference for the prevention and control of loess mudflow disasters in the Loess Plateau.

show abstract

mentioning

confidence: 99%

Effect of initial water content on soil failure mechanism of loess mudflow disasters

Yang

Chen

Zhang³

et al. 2023

Front. Ecol. Evol.

Self Cite

View full text Add to dashboard Cite

show abstract

“…In this study, the analysis of the grouting of Newtonian fluid into porous media is grounded on past research works that have adopted certain assumptions concerning the grouts and the structure of the media, as referenced in [18,[29][30][31]:…”

Section: Formulation Of Grouting Theoretical Model For Porous Media I...mentioning

confidence: 99%

Column-Hemispherical Penetration Grouting Mechanism for Newtonian Fluid Considering the Tortuosity of Porous Media

Yang,

Xiong,

Zhao

et al. 2023

Processes

Self Cite

View full text Add to dashboard Cite

The intricate morphology of porous media can considerably affect the progression of penetration and the diffusion of grouting slurry. In this study, a Newtonian fluid’s refined seepage motion equation was proposed to incorporate the impact of tortuosity on the grouting process into gravel soil, and the column-hemispherical penetration grouting mechanism was analyzed using the method of theoretical analysis. Utilizing secondary-development programming techniques, a numerical simulation program was developed with COMSOL Multiphysics to model the penetration grouting mechanism of a Newtonian fluid in a column-hemispherical pattern, considering a medium’s tortuosity. The penetration grouting process of Newtonian cement into gravel soils was then simulated. Finally, the theoretical analysis, experimental values, and numerically simulated values were compared.The findings suggested that incorporating the tortuosity of porous media is more efficacious in depicting the penetration and diffusion behavior for Newtonian fluid grouting in porous media, as compared to omitting the tortuosity. The findings of this study contribute to a better understanding of grouting engineering in porous media strata, guiding practical design and construction.

show abstract

“…The loss function chooses the cross-entropy function. When the set stop condition is reached, the network model stops running, and the final feature extraction result of mass rainstorm and debris flow is output [21][22][23].…”

Section: Multilevel Feature Extraction Of Large-scale Rainstorm Debri...mentioning

confidence: 99%

Feature Extraction Algorithm of Massive Rainstorm Debris Flow Based on Ecological Environment Telemetry

Li,

Zhao,

et al. 2023

Water

View full text Add to dashboard Cite

In order to accurately extract the characteristics of debris flow caused by group rainstorms, effectively identify the on-site information of debris flow, and provide a scientific basis for debris flow monitoring, early warning and disaster control, this paper proposes a method for extracting the characteristics of heavy rainstorm debris flow using multiregional ecological environment remote sensing. In the ecological environment where debris flows occur frequently, remote sensing data of heavy rainstorm debris flows are preprocessed using remote sensing technology, providing an important basis for the feature extraction of debris flows. The kernel principal component analysis method and Gabor filters are innovatively used to extract the spectral and texture features of rainstorm and debris flow remote sensing images, and the convolutional neural network structure is improved based on the open source deep learning framework, integrating multilevel features to generate debris flow feature maps. The improved convolution neural network is then used to extract the secondary features of the fusion feature map, and the feature extraction of heavy rainstorm debris flow is realized. The experiment shows that this method can accurately extract the characteristics of heavy rainstorm debris flow. Fused remote sensing images of debris flow effectively ameliorate the problem of insufficient informational content in a single image and improve image clarity. When the Gabor kernel function has eight different directions, the feature extraction effect of the debris flow image in each direction of the heavy rainstorm is the best.

show abstract

Study on Mechanism and Verification of Columnar Penetration Grouting of Time-Varying Newtonian Fluids

Cited by 21 publications

References 13 publications

Effect of initial water content on soil failure mechanism of loess mudflow disasters

Effect of initial water content on soil failure mechanism of loess mudflow disasters

Column-Hemispherical Penetration Grouting Mechanism for Newtonian Fluid Considering the Tortuosity of Porous Media

Feature Extraction Algorithm of Massive Rainstorm Debris Flow Based on Ecological Environment Telemetry

Contact Info

Product

Resources

About