Title:
PILE FORMATION METHOD FOR DOWN-THE-HOLE IMPACT ROTARY JET COMPOSITE PILES
Document Type and Number:
WIPO Patent Application WO/2018/210019
Kind Code:
A1
Abstract:
A pile formation method for down-the-hole impact jet grouting composite piles, comprising the following steps: step A: firstly, forming a soil cement exterior pile (1) using down-the-hole impact high-pressure rotary jet pile construction technology; step B: then, configuring a core pile (2) inside of the soil cement exterior pile (1) to form a down-the-hole rotary jet composite pile, wherein the core pile (2) may be a filling pile, a concrete prefabricated pile or a steel pile.
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Inventors:
ZHANG LIANG (CN)
DAI BIN (CN)
MA YUNFEI (CN)
ZHU YUNWEI (CN)
LIU HONGYUN (CN)
GUO DAQING (CN)
MA ENSHUAI (CN)
DAI BIN (CN)
MA YUNFEI (CN)
ZHU YUNWEI (CN)
LIU HONGYUN (CN)
GUO DAQING (CN)
MA ENSHUAI (CN)
Application Number:
PCT/CN2018/075793
Publication Date:
November 22, 2018
Filing Date:
February 08, 2018
Export Citation:
Assignee:
BEIJING RONGCHUANG GEOTECHNICAL ENG CO LTD (CN)
International Classes:
E02D5/46; E02D5/34
Foreign References:
| CN107023002A | 2017-08-08 | |||
| CN101148875A | 2008-03-26 | |||
| CN102322058A | 2012-01-18 | |||
| CN2565870Y | 2003-08-13 | |||
| CN202227336U | 2012-05-23 | |||
| JP4027264B2 | 2007-12-26 | |||
| JP4796477B2 | 2011-10-19 |
Attorney, Agent or Firm:
BEIJING SANYOU INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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