Title:
REINFORCING AND LIFTING METHOD AND REINFORCING AND LIFTING STRUCTURE FOR LARGE-SCALE PIERS OF HIGH-SPEED RAIL
Document Type and Number:
WIPO Patent Application WO/2021/027696
Kind Code:
A1
Abstract:
The invention discloses a reinforcing and lifting method and a reinforcing and lifting structure for large-scale piers of high-speed rail, and relates to the technical field of bridge pier lifting, wherein a technical solution thereof comprises the following construction steps: obliquely drilling grouting holes for a pile shoe body downward at the periphery of the bridge pier cap, the hole bottom goes deep into a pile foundation side position close to the bottom end of the bridge pile foundation, grouting the hole bottom, and reinforcing the soil body between a plurality of pile foundations and the periphery of the pile foundations to form the pile shoe body; vertically drilling holes downward around the pier cap to form a plurality of spaced curtain holes, and grouting the curtain holes to form an enclosed curtain wall, the curtain wall and the pile shoe body form an inverted groove structure; obliquely drilling holes downward to form lifting holes, the lifting holes go deep to the bottom of the pile foundations; grouting under pressure to the bottom of the lifting holes, as the grout within the enclosed area of the curtain wall increases and solidifies rapidly, the bridge piers are gradually raised to a required height. The method has the advantages of realizing the lifting of the large-scale piers and effectively preventing secondary sedimentation of the raised piers.
Inventors:
CUI XUEDONG (CN)
WU JIGUANG (CN)
CUI TENGYUE (CN)
WU JIGUANG (CN)
CUI TENGYUE (CN)
Application Number:
PCT/CN2020/107625
Publication Date:
February 18, 2021
Filing Date:
August 07, 2020
Export Citation:
Assignee:
BEIJING HENGXIANG HONGYE FOUNDATION REINFORCEMENT TECH CO LTD (CN)
International Classes:
E02D35/00; E02D37/00
Foreign References:
| CN108547336A | 2018-09-18 | |||
| CN108547336A | 2018-09-18 | |||
| CN107100215A | 2017-08-29 | |||
| CN208501761U | 2019-02-15 | |||
| CN208501761U | 2019-02-15 | |||
| CN101487274A | 2009-07-22 | |||
| CN108842840A | 2018-11-20 | |||
| CN107476360A | 2017-12-15 | |||
| KR20090130502A | 2009-12-24 | |||
| KR20110019674A | 2011-02-28 | |||
| US20080175673A1 | 2008-07-24 |
Attorney, Agent or Firm:
BEIJING WEIZHENG PATENT AGENCY CO., LTD. (CN)
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