Quantitative research on sensitive factors of coal wall rib spalling in full mechanized caving face with large mining height

IF 3.7 2区工程技术 Q3 ENGINEERING, ENVIRONMENTAL Bulletin of Engineering Geology and the Environment Pub Date : 2025-01-24 DOI:10.1007/s10064-025-04103-7

Bo Xue, Yuyang Wang, Chen Wang, Wenshuai Zhang, Xiaoxiao Lu

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Abstract

With the advancement of equipment technology, the mining height of coal mine working faces has been increasing year by year. In thick coal seams with high mining heights, the frequent occurrence of rib spalling in coal faces has become a prominent issue, leading to unclear mechanisms and increased difficulty in controlling rib spalling. This paper employs a comprehensive approach combining theoretical analysis, physical experiments, numerical simulation, and mathematical statistics to investigate the influencing factors of rib spalling in coal faces. An orthogonal experimental model for coal face rib spalling is established, quantifying each influencing factor and ranking their sensitivity. Consequently, control strategies for rib spalling in fully mechanized top coal caving faces of thick coal seams are proposed. These findings provide valuable insights for managing rib spalling in similar conditions with high mining heights and offer guidance for selecting control factors against rib spalling.

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来源期刊

Bulletin of Engineering Geology and the Environment 工程技术-地球科学综合

CiteScore

7.10

自引率

11.90%

发文量

445

审稿时长

4.1 months

期刊介绍： Engineering geology is defined in the statutes of the IAEG as the science devoted to the investigation, study and solution of engineering and environmental problems which may arise as the result of the interaction between geology and the works or activities of man, as well as of the prediction of and development of measures for the prevention or remediation of geological hazards. Engineering geology embraces: • the applications/implications of the geomorphology, structural geology, and hydrogeological conditions of geological formations; • the characterisation of the mineralogical, physico-geomechanical, chemical and hydraulic properties of all earth materials involved in construction, resource recovery and environmental change; • the assessment of the mechanical and hydrological behaviour of soil and rock masses; • the prediction of changes to the above properties with time; • the determination of the parameters to be considered in the stability analysis of engineering works and earth masses.