Multi-section expansion anchor rod suitable for soft rock stratum of mine and using method of multi-section expansion anchor rod

Multi-section expansion anchor rod suitable for soft rock stratum of mine and using method of multi-section expansion anchor rod

The invention relates to the technical field of expansion anchor rods, in particular to a multi-section expansion anchor rod suitable for a soft rock stratum of a mine and a using method thereof.The multi-section expansion anchor rod comprises an upper rod body, a lower expansion pipe is fixedly con...

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Hauptverfasser: JIAO YANG, LIANG PENGFEI, YANG YU, DI JUNZHEN, SUN CHUANG, LIU JIASHUN, XIN CHANGHAO, JING QINGHE, SUN YIDAN, GUO JIE
Format: Patent
Sprache:chi ; eng
Schlagworte:
EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SHAFTS
TUNNELS
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creator JIAO YANG
LIANG PENGFEI
YANG YU
DI JUNZHEN
SUN CHUANG
LIU JIASHUN
XIN CHANGHAO
JING QINGHE
SUN YIDAN
GUO JIE
description The invention relates to the technical field of expansion anchor rods, in particular to a multi-section expansion anchor rod suitable for a soft rock stratum of a mine and a using method thereof.The multi-section expansion anchor rod comprises an upper rod body, a lower expansion pipe is fixedly connected to the outer portion of the upper rod body, an expansion groove is formed in the outer portion of the lower expansion pipe, and a threaded pipe is fixedly connected to the outer portion of the lower expansion pipe; the outer portion of the threaded column is in threaded connection with a threaded column, the outer portion of the threaded column is in threaded connection with an outer frame, the outer portion of the threaded column is rotationally connected with a transverse rod, the outer frame is fixedly connected with the upper rod body, the outer portion of the transverse rod is connected with a sliding sleeve, the outer portion of the sliding sleeve is rotationally connected with a fixing cone, the slidi
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language chi ; eng
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subjects EARTH DRILLING
FIXED CONSTRUCTIONS
GALLERIES
LARGE UNDERGROUND CHAMBERS
MINING
SHAFTS
TUNNELS
title Multi-section expansion anchor rod suitable for soft rock stratum of mine and using method of multi-section expansion anchor rod
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