Protective structure for reserved hole of working well

The utility model discloses a protective structure for a reserved hole of a working well, which belongs to the technical field of protective structures for reserved holes and comprises a first section of well wall, a second section of well wall and a third section of well wall which are all made of...

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Bibliographic Details
Main Authors GAO YU, SONG LEI, TONG JIAHUAN, HU XUANCHENG, WANG HUJUN, HE XIAOWEI
Format Patent
LanguageChinese
English
Published 30.04.2024
Subjects
EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SHAFTS
TUNNELS
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