Mining of thin coal seams using surface-underground methods
Journal Title: Mining – Informatics, Automation and Electrical Engineering - Year 2018, Vol 535, Issue 3
Abstract
Shallow hard coal deposits in the form of seams can be mined using surface-underground methods. These methods are characterized by the exploitation of the deposit from the surface, while the mining process itself takes place underground. The large variability of the mining and geological conditions was the reason for the emergence of many mining methods and systems as well as machines, sometimes used only locally in various parts of the world. The article presents the surface-underground methods used around the world. Attention is paid to unusual and rarely used methods and machines, which are not utilized in Polandfor various reasons. The present article discusses mining machines used in the methods of Highwall, Auger, and Punch longwall mining along with their types and varieties.
Authors and Affiliations
Łukasz Bołoz
Keywords
Related Articles
- EP ID EP433827
- DOI 10.7494/miag.2018.3.535.47
- Views 139
- Downloads 0
Experimental investigation of dynamic impact of roadheader on floor
This article presents the selected results of experimental examinations performed on the test stand in the Technological Hall of the Faculty of Mining and Geology at the Silesian University of Technology in which an R-13...
Experimental mechanical security assessment used in torsionally flexible Raptor-SK couplings
Dodge®Raptor series couplings belong to inseparable, mechanical, and torsionally flexible couplings with the possibility of compensating for the misalignment of axes. In the couplings with the Raptor-SK design, shear pin...
High-speed optical methane concentration meter with the dust compensation of mine atmosphere
We tested an optical-absorption methane concentration meter for coal mines conditions. We studied conversion characteristics and evaluated its speed performance and proposed a method of dusty coal mines air multiplicativ...
Difficulties observed in operating powered roof support during work in lower range of its working height
Significant maintenance difficulties have recently been observed in terms of the proper maintenance of mining roofs during the operation of powered roof supports in their low section height range, which is characterized...
Computer-aided design of cutting heads
The design of cutting heads is a complex process in which it is necessary to perform multiple recalculations of complicated formulas and to correct the assumptions of input data. The purpose is to provide high efficiency...