随着国民经济的迅速发展,越来越清楚地看到煤炭工业是国民经济的薄弱环节,所以加快煤炭工业的发展已是当务之急.又因为煤矿是地下作业,建设一个大型煤炭基地是不容易的,建设周期比其它工业要长,随着时间的推移,开采深度越来越深,水和瓦斯等自然条件越来越复杂,矿井建设 With the rapid development of the national economy, it is becoming clear that the coal industry is the weakest link in the national economy. Therefore, it is imperative to speed up the development of the coal industry. Since the coal mine is an underground operation, it is not easy to build a large-scale coal base , Construction period is longer than other industries, with the passage of time, more and more deep mining depth, water and gas and other natural conditions more and more complex, mine construction