Anchoring device for unfavorable geological section and construction method thereof

The invention discloses an anchoring device for an unfavorable geological section and a construction method of the anchoring device, which can enlarge the opening angle of an anchor petal of an expansion shell type anchor rod, solve the problem that the inner anchor end of the anchor rod is difficul...

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Bibliographic Details
Main Authors WANG WEI, ZHANG JINLONG, WANG XIAOJIA, NIU XIAOBING, JIN WEIQIANG, CUI JIAN, HE ZHOUSHI, QIAO SHIBAO, ZHANG WEI
Format Patent
LanguageChinese
English
Published 09.08.2022
Subjects
EARTH DRILLING
EMBANKMENTS
EXCAVATIONS
FIXED CONSTRUCTIONS
FOUNDATIONS
GALLERIES
HYDRAULIC ENGINEERING
LARGE UNDERGROUND CHAMBERS
MINING
SHAFTS
SOIL SHIFTING
TUNNELS
UNDERGROUND OR UNDERWATER STRUCTURES
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Summary:The invention discloses an anchoring device for an unfavorable geological section and a construction method of the anchoring device, which can enlarge the opening angle of an anchor petal of an expansion shell type anchor rod, solve the problem that the inner anchor end of the anchor rod is difficult to lock, improve the success rate of anchoring, shorten the construction time consumption of the anchor rod under the unfavorable geological condition and ensure the safety in the construction process. Comprising an anchoring section, a dowel bar assembly and a tension rod assembly which are rotationally connected in sequence; the anchoring section comprises an anchor clack, an opener and a limiting piece, the limiting piece is arranged at the top end of the anchor clack, the dowel bar assembly is formed by sequentially connecting a plurality of hollow anchor rods in a sleeved mode, the opener is arranged on the section, close to the anchor clack, of each hollow anchor rod, the section, away from the anchor clack
Bibliography:Application Number: CN202210571020