11-08-2023 дата публикации
Номер: CN116575881A
Автор:
MA XINQING,
WENG MINGYUE,
SUN KAI,
SONG GANG,
LI DECHUN,
GUO QINGHUA,
YAN XUEGONG,
GUO DALIN,
YANG JIAN,
ZHANG ZHAOWEI,
HAO YINGHAO,
SU SHIJIE,
WANG LIXIN,
ZHAO SHUHAO,
SU GUANGNING,
SONG XIANGKAI,
WU FEI
Принадлежит:
The invention discloses a safe and green mining process based on overlying strata separation layer grouting, which comprises a surface soil layer, the top of the surface soil layer is fixedly connected with a panel roadway, the top of the panel roadway is provided with a coal mining working face, one side of the panel roadway is provided with a mining stopping line, and a working face small coal pillar is reserved in the coal mining working face; a filling station is arranged on the ground of the panel roadway, gangue is made into gangue slurry through crushing and ball milling in the filling station, a grouting pump is arranged, one side of the filling station is fixedly connected with a grouting pipeline, the grouting pipeline is arranged in the advancing direction of the coal face, and the outside of the grouting pipeline is connected with a grouting drill hole. The grouting drill holes are formed in the middle of the coal face. The method has the beneficial effects that the method is ...
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