摘要
针对复杂地质条件所造成的露天矿煤层突然急剧下降,形成洪峰剥采比,传统的超前剥离方法无法进行有效剥采调节的情况,运用露天采矿学的基本原理,提出了一种新的剥采比调节方法——双坑动态剥采调节方法,并详细分析了双坑跳跃式开采的不同模式、适用条件及关键影响因素。结合芦子沟背斜造成安太堡露天矿煤层由近水平变成倾斜的特殊变化,运用此方法进行了实例分析。结果表明:对于倾斜及近水平转倾斜煤层露天煤矿,双坑动态剥采调节方法可有效均衡生产剥采比,保证产量稳定,提高矿山经济效益。
According to the sharp dropping coal seam and peaking stripping ratio caused by complicated geological conditions, which can not be solved by regulating the stripping and mining with traditional advance stripping method, a method of double pits dynamic regulating mode based on the basic principles of surface mine was put forward, and then, double pit-leaping mining mode and it＇ s applicable conditions and key factors were detailed analyzed. The coal seam of Antaibao Surface Coal Mine in China changes from flat seam to sharp dropping seam during the mining area of Luzigou anticline. Combining with the surface mine problems that occurred during the anticline mining area, this paper took Antaibao Surface Coal Mine as a case study. The results show that the stripping ratio is balanced and the production keeps stability, moreover, the economic benefit is improved with double pits dynamic regulating mode in sharp dropping seam surface mine.
出处
《煤炭学报》
EI
CAS
CSCD
北大核心
2014年第5期855-860,共6页
Journal of China Coal Society
基金
国家重点基础研究发展计划(973)资助项目(2010CB732002)
中央高校基本科研业务专项资金资助项目(2013QZ04)
关键词
露天煤矿
双坑动态剥采调节
双坑跳跃式开采
倾斜煤层
超前剥离
surface coal mine
double pits dynamic regulating mode
double pit-leaping mining method
sharp droppingcoal seam
advance stripping
