Establishment and application of set pair analysis model for a three- dimensional quantitative evaluation of coal mining environment

Mining activities disturb the original environment structure,speed up the environment of material circulation,impact the mining area environment system. The mine environment quality quantitative evaluation and mastering its internal change rule are the basis of realizing the sustainable development of mining area. Through establishment 3 d quantitative index system with natural endowment,ecological environment and humanities index,and based on set pair analysis wide domain type function structure,we made sure the relationship degree function between the mine environment quality indicators and the corresponding index quality standards set,built the mine environment quality set pair analysis quantitative evaluation model,witho 3 d index system containing15 indicators. It came to a conclusion that the overall environment quality of Qitaihe coal mining in Heilongjiang province was for level Ⅱ,among which main factor affecting the environment quality was mine ecological environment. Evaluation results and the fuzzy mathematics method consisted with the evaluation results. Application shows that the evaluation model not only embodies the mine environment quality quantitative evaluation information in the processing of relativity,but also includes the fuzziness of fuzzy synthesis. The process of calculation is simple and result is more accurate.