Research on stress evolution law and failure characteristics of top coal in fully mechanized caving of extra-thick coal seams
نویسندگان
چکیده
In this study, based on the engineering background of No. 8222 working face Tashan coal mine in Shanxi Province, China, true triaxial experiments were carried out Geotechnical Consulting and Testing Systems rock mechanics testing machine using cubic samples, numerical simulation was conducted through FLAC3D software. Moreover, stress evolution law different layers extra-thick seams failure mechanism top fully mechanized caving investigated, structure model established. The results show that there are differences principal values at coal.
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ژورنال
عنوان ژورنال: Thermal Science
سال: 2023
ISSN: ['0354-9836', '2334-7163']
DOI: https://doi.org/10.2298/tsci2301687l