摘要
＂Y＂型通风工作面近距离煤层群在开采过程中上、下邻近层瓦斯随着顶、底板在回采过程中扰动产生的裂隙瓦斯大量涌入工作面,造成回采工作面及回风流瓦斯偏高,给工作面的安全生产带来严重的威胁。通过对煤层瓦斯涌出源的分析,采取底抽巷＋本煤层＋高抽巷＋采空区抽采的综合瓦斯治理措施,取得了较好的安全技术效果。
From the late 19th century to the early 20＇h century, Russia had experienced great change politically, economically, and culturally. In the process of rapid transmission, nihilism,as a type of thought, stormed the Russians, common folks as well as intellectuals. It effectively deconstructs the meaning world and value world of existence so that men lose the base of existence. Facing the popularity of nihilism, Frank fought against it by digging the root. It is not only for seeking for the route but also for proving the meaning of life.
出处
《哈尔滨学院学报》
2016年第2期21-23,共3页
Journal of Harbin University
