煤炭绿色开采技术及其在西北矿区的应用前景研究

Shallow talk on the coal mining technology under green mining in the area of northwest

绿色开采的理念是针对煤炭开采造成的严重环境问题提出的,目标是取得最佳的经济效益、环境效益和社会效益。构建的绿色开采技术框架包括保水开采、减沉开采、煤与煤层气(瓦斯)共采、矸石减排、煤炭地下气化等。西北地区自然气候条件恶劣,地质条件差,降水少且集中,旱涝灾害频繁,植被稀疏,水资源短缺,存在着沙漠化、水土流失、滑坡、崩塌、泥石流及草场退化、耕地面积减少等严重生态环境地质问题。基于以上问题,本文提出了绿色开采在西北地区的应用。

With respect to the serious environment problems of coal mining,a new concept of green mining is proposed.The goal is to maximize the economic and social benefits.The technical framework of green mining includes water-preservation in mining areas,coal mining to retard surface subsidence,simultaneous extraction of coal and coal-bed methane,reduction of rock waste,underground coal gasification,and others.The natural climate in Northwest in China is very odious,and its geological condition is very complex.The precipitation is less and concentrated.Drought and water logging in the area are very usual to see,and the eco-system is very weak.Water resources in the area are limited.The eco-environment problems such as desertification,loss of soil,mud-rock flow,land slide,land degeneration and decrease of cultivation area are quite common in the area.In the meantime disorder exploitation of coal mine in the area has made the geological environment and ecology system more fragile.Based on analyzing the problems in detail,this paper puts forward green mining in the areas.