Measurement of Strata Deformation around Longwall Mining Panel
نویسندگان
چکیده
منابع مشابه
Development of Numerical Models to Investigate Permeability Changes and Gas Emission around Longwall Mining Panel
Underground longwall mining of coal causes large scale disturbance of the surrounding rock mass. The disturbance can increase the rock mass permeability through a reduction on the stress as well as formation of new fractures in the rock. Methane gas contained in the disturbed rock mass can migrate towards the low pressure mine workings and present an explosion hazard. This paper describes the a...
متن کاملAutomation in Longwall Coal Mining - A Review
Coal is an important fossil fuel and will also be for the next decades [1]. The only way to achieve the challenges faced by the coal industry is to reduce production costs by improving productivity. Improvement of productivity has become an important goal for today’s coal industry in the race to increase price competitiveness. In recent years, underground mining method is becoming popular becau...
متن کاملLongwall Mining Stability in Take-Off Phase
1 Department of Construction and Manufacture Engineering, Polytechnic School of Mieres, University of Oviedo, Mieres, 33600 Asturias, Spain 2Department of Exploitation and Prospecting Mines, Mining Engineering School, University of Oviedo, Oviedo, 33004 Asturias, Spain 3 Department of Exploitation Mines, Polytechnic University of Madrid, 28040 Madrid, Spain 4Department of Exploitation and Prosp...
متن کاملInfluence of Stratigraphic Conditions on the Deformation Characteristics of Oil/Gas Wells Piercing Longwall Pillars and Mining Optimization
Hydrocarbon wells drilled vertically through longwall coal pillars are vulnerable to severe deformation and potential failure as a result of underground coal mining. The lithology of the host rocks play a critical role in well stability. In this study, a two dimensional finite element method is employed to investigate the horizontal shear offset, vertical delamination, and compression at the we...
متن کاملReal-World Automation: New Capabilities for Underground Longwall Mining
This paper describes successful industrial research and development in the area of underground coal mining equipment automation. A brief background to underground coal mining is given, and the process of longwall mining is detailed. Some of the major limitations and issues impacting on the productivity and safety of the longwall mining process are highlighted, which serve to motivate the automa...
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ژورنال
عنوان ژورنال: Journal of the Mining and Metallurgical Institute of Japan
سال: 1983
ISSN: 0369-4194,2185-6729
DOI: 10.2473/shigentosozai1953.99.1145_549