నైరూప్య

Coal mine environment evaluation based on fuzzy comprehensive evaluation method

Zhu Jing, Liu Lijun

This paper firstly analyses the influence of coal mining on the environmental factors; and then selected recovery ratio, waste water rate, air pollution degree, reclamation rate of subsidence land and other indexes according to the influence of coal mining on the water, air, land and other environmental factors; secondly, this paper divides the indexes into five classes with scores in export scoring method, lastly, combining specific cases and based on fuzzy comprehensive evaluation method, it gets coal mine environmental score through operation of index weight matrix and fuzzy evaluation matrix