Title:
EXPANSION SHELL YIELDING ANCHOR CABLE AND CONSTRUCTION METHOD THEREOF
Document Type and Number:
WIPO Patent Application WO/2023/061044
Kind Code:
A1
Abstract:
Disclosed are an expansion shell yielding anchor cable and a construction method thereof, which relate to the technical field of underground engineering. An expansion shell anchoring piece is fixed to the upper end of a variable cross-section yielding anchor cable, and an anchorage device is fixed to the lower end of the variable cross-section yielding anchor cable. A hollow metal pipe is arranged in the middle of the anchor cable. The outer part of the hollow metal pipe is enclosed by a high-strength conical pipe. The outside of the anchor cable is enclosed by a variable cross-section threaded sleeve via a binder. The present invention is primarily used for providing anchoring support to water-rich tunnels, in particular high-stress large-deformation water-rich underground projects. The variable cross-section yielding anchor cable, the expansion shell anchoring piece, the anchorage device and the backing plate realize an anchoring technology that integrates rapid anchoring, yielding support and grouting protection. The expanded expansion shell anchoring piece and the surrounding rock of a tunnel wall form a bite force that provides immediate support to the surrounding rock. The yielding function of the variable cross-section yielding anchor cable increases the deformation capability of the anchor cable. The hollow metal pipe built inside the variable cross-section yielding anchor cable realizes post-grouting protection.
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Inventors:
QIN ZHENGYANG (CN)
GUO XINXIN (CN)
WEI XIAOBO (CN)
YU JIAWU (CN)
ZHANG ZHAOJUN (CN)
TANG SHAOWU (CN)
WANG RUI (CN)
LONG WENHUA (CN)
WANG XUELEI (CN)
LIANG ZHEN (CN)
ZHANG CHENGYONG (CN)
ZHAO BAOFENG (CN)
LIN LIN (CN)
ZHOU XITAO (CN)
HU GUANGYI (CN)
GAO BO (CN)
CHEN JUN (CN)
YIN XIAODONG (CN)
YANG HAIJUN (CN)
YANG TAO (CN)
AN BIN (CN)
FENG QIANJIN (CN)
WANG BAIQUAN (CN)
CHEN WENCHAO (CN)
CHEN ZHIYONG (CN)
FENG HAOYU (CN)
CHEN MINGZHE (CN)
GUO XINXIN (CN)
WEI XIAOBO (CN)
YU JIAWU (CN)
ZHANG ZHAOJUN (CN)
TANG SHAOWU (CN)
WANG RUI (CN)
LONG WENHUA (CN)
WANG XUELEI (CN)
LIANG ZHEN (CN)
ZHANG CHENGYONG (CN)
ZHAO BAOFENG (CN)
LIN LIN (CN)
ZHOU XITAO (CN)
HU GUANGYI (CN)
GAO BO (CN)
CHEN JUN (CN)
YIN XIAODONG (CN)
YANG HAIJUN (CN)
YANG TAO (CN)
AN BIN (CN)
FENG QIANJIN (CN)
WANG BAIQUAN (CN)
CHEN WENCHAO (CN)
CHEN ZHIYONG (CN)
FENG HAOYU (CN)
CHEN MINGZHE (CN)
Application Number:
PCT/CN2022/113897
Publication Date:
April 20, 2023
Filing Date:
August 22, 2022
Export Citation:
Assignee:
ERCHU CO LTD OF CHINA RAILWAY TUNNEL GROUP (CN)
CHINA RAILWAY TUNNEL GROUP CO LTD (CN)
UNIV CHENGDU TECHNOLOGY (CN)
UNIV SICHUAN NORMAL (CN)
CHINA RAILWAY TUNNEL GROUP CO LTD (CN)
UNIV CHENGDU TECHNOLOGY (CN)
UNIV SICHUAN NORMAL (CN)
International Classes:
E21D21/00; E21D20/02
Foreign References:
| CN113944492A | 2022-01-18 | |||
| CN205349392U | 2016-06-29 | |||
| CN112253199A | 2021-01-22 | |||
| CN201982124U | 2011-09-21 | |||
| CN209430233U | 2019-09-24 | |||
| CN104379871A | 2015-02-25 |
Attorney, Agent or Firm:
BEIJING HENGLV INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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