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作 者:李涛 Li Tao(Shanxi Fenxi Yixing Coal Industry Co.,Ltd.,Lvliang Shanxi 032300)
机构地区:[1]山西汾西宜兴煤业有限责任公司,山西吕梁032300
出 处:《山西冶金》2022年第8期195-196,共2页Shanxi Metallurgy
摘 要:山西某矿井综采工作面在回采过程中需要通过一条平行工作面大断层,通过采取挑顶正常截割方式顺利通过该断层。因此,对山西某矿近距离煤层过平行工作面断层施工方案进行研究。在距断层30m处提前挑顶,使顶板距上部采空区距离缩小至4m,同时工作面进行斜交循环,保证机尾滞后机头15m,与断层斜交。后期实施发现具体可行,顺利安全通过该断层。The fully mechanized working face of a mine in Shanxi needs to pass through a large fault in the parallel working face in the process of mining,and the fault can be successfully passed through by normal cutting with roof lifting.Therefore,it is necessary to study the construction scheme of a coal mine in Shanxi Province where a close coal seam passes through a fault in a parallel working face.Jump the roof 30 m from the fault in advance to reduce the distance between the roof and the upper goaf to 4 m.At the same time,the working face conducts oblique circulation to ensure that the tail of the machine lags behind the head by 15 m and is oblique to the fault.It is found that the later implementation is feasible and it can pass through the fault smoothly and safely.
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