Numerical Simulation Study on the Deformation Patterns of Surrounding Rock in Deeply Buried Roadways under Seepage Action DOI Creative Commons
Xuebin Xie, Liang Li

Applied Sciences, Journal Year: 2024, Volume and Issue: 14(12), P. 5276 - 5276

Published: June 18, 2024

To reveal the deformation patterns of surrounding rock in deeply buried straight-wall arch-shaped roadways under seepage action, this study, based on an FLAC3D numerical simulation and classic elastoplastic theory, investigates influences classification, roadway burial depth, pore water pressure, cross-sectional dimensions rock. A multivariate regression prediction model for was established conclusions, correctness conclusions verified through comparative analysis. Correlation analysis various factors with conducted, ranking their impact as follows: pressure > depth classification height width. The research results can provide guidance construction support action.

Language: Английский

Study on Seepage Effect of Roadway Based on Polyformaldehyde (POM) Fiber Concrete DOI Creative Commons

Yong Sang,

Guangjin Wang

Applied Sciences, Journal Year: 2025, Volume and Issue: 15(7), P. 3503 - 3503

Published: March 23, 2025

This article presents the results of a study focused on enhancing permeability resistance roadways using polyformaldehyde fiber-reinforced concrete. The uniqueness this is its interest in fiber, which has not been widely studied underground mining roadways, especially relation to impact resistance. concrete with different lengths (30 mm, 36 42 mm) and dosages (5 kg/m3, 7 9 kg/m3) was tested by step pressure method seepage height method. hydrostatic were analyzed, best selected carry out numerical simulation based phosphate mine Yunnan Province. changes pore water pressure, maximum principal stress, displacement roadway’s surrounding rock under influence groundwater analyzed. show that addition fiber can effectively improve impermeability With increase length dosage, increases first then decreases. Under ordinary support conditions, roadway affected over time, leads strength’s decline creep deformation, necessitating strengthening anti-drainage measures. conditions reinforcement concrete, top obviously reduces, stability roadway.

Language: Английский

Citations

0
A seepage calculation method in geomaterials based on the novel improved DEM-FDM DOI Creative Commons
Xuan Tang, Chong Shi,

Chengfu Hu

et al.

Scientific Reports, Journal Year: 2025, Volume and Issue: 15(1)

Published: April 12, 2025

Seepage plays a crucial role in the mechanical behavior and damage modes of geotechnical materials. In this work, based on unsteady seepage equation, hydraulic coupling numerical simulation algorithm combining interpolation finite difference method (FDM) discrete element (DEM) is proposed to explore intrinsic mechanism interaction between materials process. The involves constructing an irregular fluid calculation grid around each particle deriving two-dimensional governing equation its stability conditions using FDM. efficiency was investigated by numerically varying parameters format. applied simulate generation gushing soil sinking area sunk shaft under drive conditions. results indicate that improved FDM can effectively with high efficiency. conductivity time step positively correlate format, whereas spatial has negative correlation. also accurately reflects process damage. These provide solid theoretical basis study field associated mechanisms.

Language: Английский

Citations

0
An unresolved DEM-CFD based simulation method for the erosion failure process of filling medium in faults DOI

Songsong Bai,

Zongqing Zhou,

Meixia Wang

et al.

Engineering Analysis with Boundary Elements, Journal Year: 2025, Volume and Issue: 178, P. 106283 - 106283

Published: May 9, 2025

Language: Английский

Citations

0
Multiple blast behavior of steel wire mesh reinforced geopolymer based high performance concrete (G‐HPC) slab: Experiment and numerical simulation DOI
Pengcheng Yuan, Shenchun Xu, Ting Yang

et al.

Structural Concrete, Journal Year: 2024, Volume and Issue: unknown

Published: Sept. 30, 2024

Abstract Engineering structures face the potential of encountering repetitive or multiple blast loads stemming from accidental explosions and terrorist attacks. However, current research in this field is still relatively limited, further investigation needed to understand damage mechanisms under explosions. Therefore, study explores resistance G‐HPC slabs reinforced with steel wire mesh (SWM) loads. The failure modes SWM‐reinforced slab were experimentally studied two consecutive (with explosive equivalents 1.6 3.2 kg, both at a standoff distance 0.4 m). results revealed that, after explosions, exhibited bulging minimal concrete spalling, showcasing overall integrity. Subsequently, numerical model was established, followed by comprehensive parameter analysis. analysis investigated effects SWM diameters grid size, arrangement SWM, sequence TNT on performance three findings that increasing diameter reducing size significantly enhanced Strategically arranging tensile zone reduced deflection. Furthermore, had notable impact energy absorption slab.

Language: Английский

Citations

0
Numerical Simulation Study on the Deformation Patterns of Surrounding Rock in Deeply Buried Roadways under Seepage Action DOI Creative Commons
Xuebin Xie, Liang Li

Applied Sciences, Journal Year: 2024, Volume and Issue: 14(12), P. 5276 - 5276

Published: June 18, 2024

To reveal the deformation patterns of surrounding rock in deeply buried straight-wall arch-shaped roadways under seepage action, this study, based on an FLAC3D numerical simulation and classic elastoplastic theory, investigates influences classification, roadway burial depth, pore water pressure, cross-sectional dimensions rock. A multivariate regression prediction model for was established conclusions, correctness conclusions verified through comparative analysis. Correlation analysis various factors with conducted, ranking their impact as follows: pressure > depth classification height width. The research results can provide guidance construction support action.

Language: Английский

Citations

0