Title:
CONSTRUCTION METHOD FOR TUNNEL IN TRANSVERSE SEMI-SOFT AND SEMI-HARD SECTION STRATUM
Document Type and Number:
WIPO Patent Application WO/2021/093751
Kind Code:
A1
Abstract:
A construction method for a tunnel in a transverse semi-soft and semi-hard section stratum, comprising: S1, constructing a pre-buried advanced pipe shed (13) in the area on a tunnel face corresponding to a tunnel arch portion; S2, constructing a soft-rock-distribution left half section (1) and a hard-rock-distribution right half section (2) in sequence by using a center diaphragm method, after excavation is completed, dismantling temporary center diaphragm supports (5, 8), and ensuring that permanent support arch frames (3, 6, 9) respectively constructed on the upper portions of the left half section (1) and the right half section (2) along an arc roof and temporary inverts (7) on the lower portions form a closed support structure; and S3, performing invert excavation, constructing permanent support arch frames (10, 11, 12) at the bottom of the tunnel, dismantling the temporary inverts (7), and constructing a composite lining. The construction method is simple, effectively solves the problem of proneness to collapse during semi-soft and semi-hard section stratum construction, and ensures the normal progress of construction operations and the safety of the construction site.
Inventors:
KOU HAIJUN (CN)
SONG XINHAI (CN)
YU JIAN (CN)
YAN MINGDONG (CN)
SONG XINHAI (CN)
YU JIAN (CN)
YAN MINGDONG (CN)
Application Number:
PCT/CN2020/127977
Publication Date:
May 20, 2021
Filing Date:
November 11, 2020
Export Citation:
Assignee:
CHINA RAILWAY 19TH BUREAU GROUP FIFTH ENG CO LTD (CN)
International Classes:
E21D9/00; E21D11/00
Foreign References:
| CN110985002A | 2020-04-10 | |||
| CN107060825A | 2017-08-18 | |||
| CN109594991A | 2019-04-09 | |||
| JPH07229386A | 1995-08-29 |
Other References:
LI SHIJUN: "Study on Construction Optimization of Highway Tunnel in Asymmetric Surrounding Rock", CHINESE MASTER'S THESES FULL-TEXT DATABASE, no. 7, 15 July 2013 (2013-07-15), CN, pages 1 - 92, XP055812183, ISSN: 1674-0246
ZHANG QUANFENG , WANG SONGQING , XU YING , YANG MING , WANG HAIBO , SHEN WUNGANG , YANG XINWEN: "On Subway Tunnel Rapid Construction Technology of Large-span Mining Method", JOURNAL OF ANHUI UNIVERSITY OF SCIENCE AND TECHNOLOGY(NATURAL SCIENCE), vol. 39, no. 5, 30 September 2019 (2019-09-30), pages 7 - 12, XP055812199, ISSN: 1672-1098
ZHANG QUANFENG , WANG SONGQING , XU YING , YANG MING , WANG HAIBO , SHEN WUNGANG , YANG XINWEN: "On Subway Tunnel Rapid Construction Technology of Large-span Mining Method", JOURNAL OF ANHUI UNIVERSITY OF SCIENCE AND TECHNOLOGY(NATURAL SCIENCE), vol. 39, no. 5, 30 September 2019 (2019-09-30), pages 7 - 12, XP055812199, ISSN: 1672-1098
Attorney, Agent or Firm:
CN-KNOWHOW INTELLECTUAL PROPERTY AGENT LIMITED (CN)
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