Title:
COUPLED SUPPORTING AND PROTECTION STRUCTURE BASED ON HIGH CONSTANT-RESISTANCE MECHANICAL MONOLITHIC SUPPORT, AND CONSTRUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/007088
Kind Code:
A1
Abstract:
Disclosed are a coupled supporting and protection structure based on a high constant-resistance mechanical monolithic support, and a construction method therefor. The structure comprises a high constant-resistance mechanical monolithic support, an inter-support tie rod (3), an anchor bolt (6), an anchor cable (7) and concrete spray layers (4, 5). The construction process comprises: firstly, digging a tunnel according to design requirements for the tunnel, uniformly spraying a concrete spray layer (4) with a thickness of 50-100 mm onto a cross section of the tunnel, and reinforcing surrounding rock of the tunnel by means of an anchor bolt and cable supporting and protection method; then, installing a high constant-resistance mechanical monolithic support and an inter-support tie rod; and finally, re-spraying a concrete spray layer (5) with a thickness of 30-50 mm to constitute the coupled supporting and protection structure based on the high constant-resistance mechanical monolithic support. The supporting and protection structure has characteristics such as a high self-bearing capacity, good integrity, self-adaption of coordinated deformation with the surrounding rock, and a good effect; and the corresponding construction method is simple and has a high efficiency, thus having an obvious effect and a promotion and application value with regard to control over the surrounding rock of a soft rock tunnel.
Inventors:
CHEN YANLONG (CN)
WU PENG (CN)
FAN JINCHENG (CN)
JU FENG (CN)
CHENG SHAOWEN (CN)
JIANG MENGLAI (CN)
HU JIQIANG (CN)
LAN DONGHAO (CN)
ZHANG YAXUE (CN)
WU PENG (CN)
FAN JINCHENG (CN)
JU FENG (CN)
CHENG SHAOWEN (CN)
JIANG MENGLAI (CN)
HU JIQIANG (CN)
LAN DONGHAO (CN)
ZHANG YAXUE (CN)
Application Number:
PCT/CN2019/082156
Publication Date:
January 09, 2020
Filing Date:
April 11, 2019
Export Citation:
Assignee:
UNIV CHINA MINING (CN)
International Classes:
E21D11/10
Foreign References:
| CN108756950A | 2018-11-06 | |||
| CN105386780A | 2016-03-09 | |||
| CN106499421A | 2017-03-15 | |||
| CN104265322A | 2015-01-07 | |||
| CN104879145A | 2015-09-02 | |||
| CN204920993U | 2015-12-30 | |||
| CN107795328A | 2018-03-13 | |||
| EP1812654B1 | 2013-05-15 | |||
| SU1539322A2 | 1990-01-30 |
Attorney, Agent or Firm:
NANJING SUGAO PATENT AND TRADEMARK FIRM (ORDINARY PARTNERSHIP) (CN)
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