Research on the Forecast of Outburst Danger in Crosscut ExposingReportar como inadecuado




Research on the Forecast of Outburst Danger in Crosscut Exposing - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

The outburst in crosscut exposing is known as one of the heaviest in coal mine. So it is necessary to beAbstract: In gas prediction and prevention , it is important for the Mine-managers to know coal-seam gaspressure.forecasted before exposed. This is always the key work of preventing outburst in coal mine. Based on the research ofAbstract: In gas prediction and prevention , it is important for the Mine-managers to know coal-seam gaspressure.the theory of outburst danger forecast in crosscut exposing, the paper took the on-site case in Zhangji Coal Mine ofAbstract: In gas prediction and prevention , it is important for the Mine-managers to know coal-seam gaspressure.Huainan Mining Group. The drills were arranged reasonably before exposing, and then the parameter ΔP and f wereAbstract: In gas prediction and prevention , it is important for the Mine-managers to know coal-seam gaspressure.measured in laboratory. So the danger of coal and gas outburst was forecasted by the comprehensive index method. IfAbstract: In gas prediction and prevention , it is important for the Mine-managers to know coal-seam gaspressure.that was the danger face, the prevention measures should be taken according to regulations. When excavating got to theAbstract: In gas prediction and prevention , it is important for the Mine-managers to know coal-seam gaspressure.vertical distance of 5 and 3 m to coal seam, the boreholes were used to release pressure and to drainage gas. Then, itAbstract: In gas prediction and prevention , it is important for the Mine-managers to know coal-seam gaspressure.was tested by measuring the parameter k1 and ΔP. The exposing went on after it was out of danger. In a word, as theAbstract: In gas prediction and prevention , it is important for the Mine-managers to know coal-seam gaspressure.multi-parameter indexes were used to forecast the outburst danger during the crosscut exposing, the safety wereAbstract: In gas prediction and prevention , it is important for the Mine-managers to know coal-seam gaspressure.improved.

KEYWORDS

crosscut exposing; forecast of outburst danger; drill; parameter

Cite this paper







Autor: zhong-qing Li, Ze-gong Liu

Fuente: http://www.scirp.org/



DESCARGAR PDF




Documentos relacionados