摘要
叙述了阳泉矿区邻近层瓦斯涌出特征和抽放方法,并对普遍应用于生产实践的顶板穿层钻孔、顶板高抽巷道和地面垂直钻孔抽放上邻近层瓦斯方法进行了技术经济和适用性评价。
There are 44 mines conducting gas drainage operation from adjacent seam in China. The total gas drainaged from 44 mines are taking about 52. 8% of the national gas drainaged. Yangquan coal mining area is the first mining area conducted the gas drainage operation from adjacent seam in China. In 1957, a trial of gas drainage from adjacent seam was succeed in Yangquan mining area. After that, the gas drainage had been operated in six seams of 12 mines in Yangquan mining area. And also the gas drainage has applied to the other coal mining areas. During the past over 30 years,with efforts of study base on mine local conditions and application of many gas drainage method to adjacent seams, the issue of the technology for gas drainage is basically solved. In 1991, the Yangquan Coal Mining Administration has an average gas drainage value of 140. 3m^3/min. and a gas drainage value by mined coal tonage of 11. 004m^3/t. This paper stated the characteristics of gas emission from adjacent seams and gas drainage methods used in Yangquan coal mining area. It also evaluated the suitability of the technology and economy for the the gas drainage methods with roof drilling, roof drilling above roadway and surface vertical drilling.
出处
《煤炭科学技术》
CAS
北大核心
1993年第8期2-4,6,共4页
Coal Science and Technology
