摘要
某矿面临严重的承压水开采问题和建筑物下压煤开采问题。针对该矿下组3层煤受高承压底板水威胁的具体条件,采取以膏体充填为主的综合技术措施,分析了膏体充填的优势,并针对该矿具体条件对材料配置进行了实验,确定了矸石粉煤灰膏体的材料来源,实施采充平行式高档普采膏体充填采煤方法后,预计可多采出煤炭资源3 000多万t,可以延长矿井服务年限25年以上。
A coal mine is confronted with two serious mining issues,confined groundwater and coal under build-ings.Considering the threats of high confined groundwater and floor water on group No.3 seam,comprehensive tech-niques are chosen by taking paste filling as the main measure.This paper analyses the advantages of paste filling, then it makes gangue fly -ash paste the main source after laboratory experiments on material disposition based on the specific conditions in this mine.If the high grade and conventional mining paste is mined and filled in a parallel way, it is expected that more than 3.0 million tons of coal resources will be produced and the service life can be lengthened to over 25 years.
出处
《山西焦煤科技》
2015年第4期31-33,44,共4页
Shanxi Coking Coal Science & Technology
关键词
承压水
建筑物
膏体充填
材料配置
Confined groundwater
Buildings
Paste filling
Material disposition
