Title:
STEEL PIPE-CEMENT COMPOSITE PILE FORMED WITH LOW DISTURBANCE, AND PILE FORMING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/168891
Kind Code:
A1
Abstract:
Provided are a steel pipe-cement composite pile formed with low disturbance and a pile forming method therefor. The method comprises the steps: after determining the position of a pile foundation, drilling a hole and forming a vertical slurry pre-hole in a soil layer; completing replacement of slurry with cement in the slurry pre-hole; lifting and lowering a steel pipe into the pre-hole; fixing and firmly pressing the lowered steel pipe, and waiting for the cement to solidify and a pile to be formed; removing surface soil, removing cement from the pile top to a design height, and removing a hanger for subsequent use. The present invention has a simple construction process, there is a smaller required investment in construction equipment and personnel, and it is further guaranteed that a pile forming process is economical and efficient; also, the construction procedure causes very little disturbance to the surrounding environment, and same is particularly suitable for a supporting body that has a relatively strict vibration control requirement.
Inventors:
MA ZHILIANG (CN)
CHANG RUIFENG (CN)
CUI SHUAI (CN)
FENG DEQUAN (CN)
ZHANG GONG (CN)
CHANG RUIFENG (CN)
CUI SHUAI (CN)
FENG DEQUAN (CN)
ZHANG GONG (CN)
Application Number:
PCT/CN2022/108651
Publication Date:
September 14, 2023
Filing Date:
July 28, 2022
Export Citation:
Assignee:
TIANJIN WATER ENG CO LTD (CN)
International Classes:
E02D5/34; E02D5/22; E02D15/08
Foreign References:
| CN114517475A | 2022-05-20 | |||
| CN104929110A | 2015-09-23 | |||
| CN104929109A | 2015-09-23 | |||
| CN102041814A | 2011-05-04 | |||
| CN2777044Y | 2006-05-03 | |||
| CN209113348U | 2019-07-16 | |||
| JP2002322644A | 2002-11-08 | |||
| JP2004132047A | 2004-04-30 |
Attorney, Agent or Firm:
TIANJIN BINHAI KEWEI INTELLECTUAL PROPERTY AGENCY LTD. et al. (CN)
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