Title:
TREATMENT METHOD FOR SUPER-LARGE KARST CAVE CAVITY BEHIND TUNNEL WALL
Document Type and Number:
WIPO Patent Application WO/2024/050850
Kind Code:
A1
Abstract:
Disclosed is a treatment method for a super-large karst cave cavity behind a tunnel wall. The treatment method comprises the following steps: cleaning loose debris in a predetermined area of a karst cave; performing reinforcing treatment on a karst cave cavity top plate in the predetermined area in a bolting-mesh shotcreting mode, and performing reinforcing treatment on karst cave cavity top plates outside the predetermined area in a concrete spraying mode; providing at a second predetermined distance on one side of a tunnel excavation contour a first support unit and a second support unit; filling concrete between first support columns to form a first guard wall, and filling concrete between second support columns to form a second guard wall; backfilling concrete between the first guard wall and the outer contour of the tunnel and between the second guard wall and the outer contour of the tunnel; performing waste debris backfilling on karst cave cavities on the side of the first guard wall and the second guard wall away from the tunnel; and backfilling and sealing a reserved channel. The treatment method for a super-large karst cave cavity behind a tunnel wall provided in the present description can effectively ensure the construction safety while not affecting the normal construction progress of the tunnel.
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Inventors:
XU BO (CN)
YANG ZHONGCHAO (CN)
WANG WEI (CN)
PENG BO (CN)
DI PENG (CN)
MENG YUAN (CN)
ZOU ZHENGJIA (CN)
LIU MINGJIAN (CN)
XU JINGUO (CN)
ZHANG HUQUAN (CN)
CHEN LEI (CN)
SHI JINZHONG (CN)
YANG ZHONGCHAO (CN)
WANG WEI (CN)
PENG BO (CN)
DI PENG (CN)
MENG YUAN (CN)
ZOU ZHENGJIA (CN)
LIU MINGJIAN (CN)
XU JINGUO (CN)
ZHANG HUQUAN (CN)
CHEN LEI (CN)
SHI JINZHONG (CN)
Application Number:
PCT/CN2022/118273
Publication Date:
March 14, 2024
Filing Date:
September 09, 2022
Export Citation:
Assignee:
CHINA TIESIJU CIVIL ENG GROUP NO 2 ENG CO LTD (CN)
CHINA TIESIJU CIVIL ENG GROUP CO LTD (CN)
CHINA TIESIJU CIVIL ENG GROUP CO LTD (CN)
International Classes:
E21D9/00; E21F15/04
Foreign References:
| CN110985060A | 2020-04-10 | |||
| CN114738002A | 2022-07-12 | |||
| CN102296961A | 2011-12-28 | |||
| CN111706362A | 2020-09-25 | |||
| CN101922300A | 2010-12-22 | |||
| CN111485902A | 2020-08-04 | |||
| CN112443342A | 2021-03-05 | |||
| JPH10131699A | 1998-05-19 |
Attorney, Agent or Firm:
SUZHOU DACHENGJUNHE INTELLECTUAL PROPERTY AGENCY (GENERAL PARTNERSHIP) (CN)
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