Inclined coal seam gob-side half coal rock roadway section structure

The utility model provides an inclined coal seam gob-side half coal rock roadway section structure which is characterized in that a roadway is tunneled along a top plate in a coal seam, an inclined wall arc top-shaped section is excavated to form the section structure, the section structure is in an...

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Main Authors GAO LIN, XU SHUAI, LIU PING, WANG YONGYIN, LIU PENGZE, HAN SEN, KANG XIANGTAO, MA ZHENQIAN, KONG DEZHONG
Format Patent
LanguageChinese
English
Published 02.08.2022
Subjects
EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SHAFTS
TUNNELS
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Summary:The utility model provides an inclined coal seam gob-side half coal rock roadway section structure which is characterized in that a roadway is tunneled along a top plate in a coal seam, an inclined wall arc top-shaped section is excavated to form the section structure, the section structure is in an inclined wall arc top shape, the inclined wall outer pricking angle is 10 degrees, and the section structure comprises a rock top, a right side coal side, a right side rock side, a rock bottom, a left side rock side and a left side coal side. The rock top is an immediate top, the rock bottom is a part of an immediate bottom, the rock bottom starts from a point below a coal seam and is arranged in the horizontal direction, and a protection coal pillar is further reserved in the tunneling process of the roadway. Compared with a straight wall semicircular arch section and a pitched roof trapezoid section under the condition of the same size, the section of the roadway is closer to a circular arc, the surrounding rock
Bibliography:Application Number: CN202221176500U