| Basing on the identification theory of dangerous source and the characteristic of coal mine grave accident, this paper studies the identification method and principle of fatal dangerous source of the coal mine, by analysis of coal mine grave accident statistics data especially coal mine in Guizhou province, endangers gas accident of the most frequency happened and the most highly disserved in coal mine grave accident as research priority, and divide gas accident source into the gas explosion source and gas outburst source respectively studying. Building Fault Tree,This paper estimate gas explosion source with risk evaluation method for characteristic; and for gas outburst source characteristic, estimate the with LEC, Appraising methods to this two kind sources, this paper make use of circular functions and echelon function characteristic in fuzzy mathematics to explain principle of two kinds of evolution and to some factors limited quantitative-relation, make the result estimating that comparatively accurate and have comparison. The thesis appraises a project with a view of the actual coal mine, does the rationality explaining feasibility of method and verifying of result. |
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