Title:
CONSTRUCTION METHOD FOR CONTINUOUS PILE FORMING
Document Type and Number:
WIPO Patent Application WO/2021/047095
Kind Code:
A1
Abstract:
Disclosed is a construction method for continuous pile forming, the method comprising: a, arranging a pile casing assembly (12) of a drilling machine at the position of a pile hole; b, sinking a drill rod assembly (14) of the drilling machine to enable the drill rod assembly to penetrate downwards through the pile casing (13) for drilling, wherein when a cutting assembly on the drill rod assembly (14) extends downwards and out of the pile casing (13) and is then unfolded, the hole wall of the pile hole is rotationally cut along with the rotation of the drill rod assembly (14), and reaming is achieved; c, achieving wall protection of the pile hole by sinking the pile casing (13) along with the drill rod assembly (14) and a cutting component (2); d, lifting the drill rod assembly (14) by a pre-set height after the pile casing (13) sinks to a pre-set position and the drill rod assembly (14) drills to the designed depth, and reserving the pile casing (13) in the pile hole; e, injecting concrete into the pile hole in a pressing manner by means of the drill rod assembly (14); f, installing a soil acquisition device (120) on the drill rod assembly (14), sinking the drill rod assembly (14), and the soil acquisition device (120) acquiring a soil body or soil slurry at the top of the concrete; g, lifting the drill rod assembly (14) and the soil acquisition device (120) to the outside of the pile hole; and h, lifting the pile casing assembly (12) out of the pile hole. The construction method can greatly improve the construction efficiency of continuous pile forming.
Inventors:
LIU XIANGANG (CN)
LIU BIN (CN)
XIONG XIAOLIN (CN)
XUE XIAOBO (CN)
LIU BIN (CN)
XIONG XIAOLIN (CN)
XUE XIAOBO (CN)
Application Number:
PCT/CN2019/126152
Publication Date:
March 18, 2021
Filing Date:
December 18, 2019
Export Citation:
Assignee:
JIANGXI JIYE TECH CO LTD (CN)
International Classes:
E21B10/43; E02D5/38; E21B10/32; E21B10/42
Foreign References:
| CN208088287U | 2018-11-13 | |||
| CN110080685A | 2019-08-02 | |||
| CN106351592A | 2017-01-25 | |||
| CN208220641U | 2018-12-11 | |||
| CN101122130A | 2008-02-13 | |||
| CN108915598A | 2018-11-30 | |||
| CN106194034A | 2016-12-07 | |||
| JP2013011078A | 2013-01-17 |
Attorney, Agent or Firm:
BEIJING GENIUS GUARD INTELLECTUAL PROPERTY AGENT LTD. (CN)
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