中国矿山工程

In order to improve the safety reliability of the ventilation-and-three-preventions system of coal mines, in this article, the safety assessment of the ventilation-and-three-preventions system of coal mine is divided into three hierarchies of A, B and C to establish the safety assessment system of ventilation-and-three-preventions system, and to prescribe the division of safety assessment hierarchies of ventilation-and-three-preventions system of coal mine. Aiming at the project status of a certain mine in Shanxi Province, calculation is conducted for the indicator weight of various hierarchies of system by using the improved fuzzy analytic hierarchy process, according to affiliation, the relative weight of the lowest layer indicators relative to the safety indicators of ventilation-and-three-preventions is calculated out, by combining with the expert scoring method, the assessment is carried out qualitatively and quantitatively for the safety level of the ventilation-and-three-preventions system of the mine, with suggestions being given. The results show that by using the improved fuzzy analytic hierarchy process to assess the safety system of ventilation-and-three-preventions of the mine, the rating is that the system is relatively safe, and improvement can be preferentially made for the indicators that have relatively large weight and have lower rating; by using this method, the safety assessment can be quantitatively made for the ventilation-and-three-preventions system of coal mine in a simple and accurate way, which has provided a good train of thought for the safety assessment of ventilation-and-three-preventions of coal mine.