Characterization of Damage and Infiltration Modeling of Coal-Slurry Consolidation Mechanics Under Loaded Conditions

Tang, Yaocai; Lu, Peng; Zhang, Junxiang; Jian, Wang

doi:10.3390/pr13020400

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Characterization of Damage and Infiltration Modeling of Coal-Slurry Consolidation Mechanics Under Loaded Conditions

by

Yaocai Tang

^1,*,

Peng Lu

²

,

Junxiang Zhang

³ and

Wang Jian

²

¹

Yima Coal Industry Group Co., Ltd., Yima 472300, China

²

College of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China

³

School of Smarts Energy & Environment Engineering, Zhongyuan University of Technology, Zhengzhou 451191, China

^*

Author to whom correspondence should be addressed.

Processes 2025, 13(2), 400; https://doi.org/10.3390/pr13020400

Submission received: 28 December 2024 / Revised: 24 January 2025 / Accepted: 29 January 2025 / Published: 2 February 2025

(This article belongs to the Special Issue Advances in Coal Processing, Utilization, and Process Safety)

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Abstract

Coal seam gas drainage is a primary measure for mitigating coal and gas outburst hazards. Grouting sealing can form coal-slurry consolidated bodies, significantly improving the sealing quality of gas drainage boreholes and alleviating coal and gas outburst risks. Therefore, this study conducts triaxial loading and seepage experiments to analyze the mechanical failure characteristics and permeability variation of coal-slurry consolidated bodies under loading conditions following grouting sealing of gas drainage boreholes. Based on the “cube” model, a permeability model for the damaged coal-slurry consolidated body under loading conditions is established. The findings provide guidance for evaluating the leakage prevention performance of sealing materials in field engineering and optimizing the sealing efficiency of grouting materials. Future research may explore the damage and seepage evolution of coal-slurry consolidated bodies under various loading conditions and sealing material types.

Keywords: coal-slurry cementation; dual effective stress; damage; permeability modeling; triaxial seepage

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MDPI and ACS Style

Tang, Y.; Lu, P.; Zhang, J.; Jian, W. Characterization of Damage and Infiltration Modeling of Coal-Slurry Consolidation Mechanics Under Loaded Conditions. Processes 2025, 13, 400. https://doi.org/10.3390/pr13020400

AMA Style

Tang Y, Lu P, Zhang J, Jian W. Characterization of Damage and Infiltration Modeling of Coal-Slurry Consolidation Mechanics Under Loaded Conditions. Processes. 2025; 13(2):400. https://doi.org/10.3390/pr13020400

Chicago/Turabian Style

Tang, Yaocai, Peng Lu, Junxiang Zhang, and Wang Jian. 2025. "Characterization of Damage and Infiltration Modeling of Coal-Slurry Consolidation Mechanics Under Loaded Conditions" Processes 13, no. 2: 400. https://doi.org/10.3390/pr13020400

APA Style

Tang, Y., Lu, P., Zhang, J., & Jian, W. (2025). Characterization of Damage and Infiltration Modeling of Coal-Slurry Consolidation Mechanics Under Loaded Conditions. Processes, 13(2), 400. https://doi.org/10.3390/pr13020400

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Characterization of Damage and Infiltration Modeling of Coal-Slurry Consolidation Mechanics Under Loaded Conditions

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