Work

Multi-method Coal Seam Floor Water Inrush Risk Evaluation Based on Variable Weight Theory

Year: 2024

Type: article

Abstract: Frequent water inrush disasters in deep coal seam mining pose a significant threat to the safety of coal extraction operations. Due to the complexity and non-linearity of water inrush factors, evaluating the risk of water inrush in coal seam floor is challenging and the results can vary significantly. To achieve more accurate evaluations, the weighted rank-sum method and Grey-TOPSIS method were employed, alongside a master control indicator variable-weight model, for assessing the risk of water inrush in coal seam floor. Validation of the evaluation zoning map against actual conditions revealed that both methods produced accurate assessment results, thus affirming the reliability of the new evaluation approach. Compared with the water inrush coefficient method, the diversification of index factors weakened the absolute control effect of the water inrush threshold. The evaluation outcomes were more systematic and comprehensive, providing a new methodology and perspective for deep coal seam mining.

Source: Energy Exploration & Exploitation

DOI: 10.1177/01445987241295833

Authors: Fuzhu Wu, Jiamin Du, Fuxun Sun, Gen Chen, Feijun Jiang, Zhaoqun Zhu

Institution: Hebei University of Engineering

Language: English

Topic: Geoscience and Mining Technology

Subfield: Safety, Risk, Reliability and Quality

Field: Engineering

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,000

Funders: National Natural Science Foundation of China, Hunan Provincial Science and Technology Department, Department of Education of Hebei Province, Natural Science Foundation of Hebei Province