Abstract
1. BUZILO V., SERDYUK V., YAVORSKY A., 2010, A research of influence of support resistance of the stope in the immediate roof condition, New Techniques and Technologies in Mining-Proceedings of the School of Underground Mining, 127–130. Google Scholar
Highlights
In China, coal resources in the large dip angle seams hold an important status in the coal energy structure
Some special mining method has been applied on coal seams in large dips, such as mining technology with flexible shield support, pitching oblique mining, and so on (Wang et al 2019; Fang 2018)
Fully-mechanized caving will be widely-used in the future mining of coal seams in a large dip angle, which will meet the demands of higher productivity
Summary
In China, coal resources in the large dip angle seams hold an important status in the coal energy structure. Fully-mechanized caving will be widely-used in the future mining of coal seams in a large dip angle, which will meet the demands of higher productivity. Under the influence of dip angle, working load of the supporting system will decrease, while external load will increase It always results in the support system instability. The stability of hydraulic support is a crucial problem in mining at large dip angle coal seam with fully-mechanized top coal caving (Zhang 2011). Like Zhang DS et al (2013), have made the similar study on Theoretical analysis of support stability in large dip angle coal seam. The theoretical analysis of this study will provide the basis for the design and optimization of hydraulic supports of steeply inclined fully mechanized caving face, and provide theoretical guidance for improving the stability of hydraulic supports of steeply inclined fully mechanized caving face It is of a certain significance both in theoretical and practical aspects
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