ASSESSMENT OF PERFORMANCE OF POWERED SHIELD SUPPORT USED ON WEAK FLOOR

World Mining Congress
The article presents an outline of methods and certain results of laboratory tests, underground tests and model tests, aimed at assessing performance of a powered shield support on the floor of low strength parameters. The tests were conducted within the framework of GEOSOFT project co financed by Research Fund for Coal and Steel (RFCR-CT-2010-00001). The described research works were conducted by Central Mining Institute (Główny Instytut Górnictwa), Janina coal mine and Becker-Warkop
Keywords: Shield supports; Tests; test; Load; stress; Value; Laboratory; Underground; Pressure; Supports;
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