煤矿与环境保护之间有着密切的联系,因为开采地下矿产资源必定会影响到地球表面。随着采煤机械化程度的不断提高,矸石比重越来越大,1940年的矸石百分比为18％,而1970年则增加到37％,矸石的重量相当于原煤的50％。因此,必须对煤矿的矸石山进行改造。从七十年代开始,随着人们对环境保护观念的不断更新,已经从过去传统的松散堆置的锥形矸石山,转变到改造矸石山,使其接近原生态环境。 There is a close link between coal mines and environmental protection, because the exploitation of underground mineral resources will certainly affect the Earth’s surface. With the continuous improvement of coal mechanization, the proportion of gangue is increasing. The percentage of gangue was 18% in 1940, 37% in 1970, and the weight of gangue was equivalent to 50% of the raw coal. Therefore, we must transform coal gangue wasteland. Since the seventies, with the continuous renewal of the concept of environmental protection, people have transformed from the traditional loose pile of conical waste rock hill to the reformation of the waste dump to make it close to the original ecological environment.