Title:
PILE END BOTTOM GROUTING APPARATUS, CAST-IN-PLACE PILE AND CONSTRUCTION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/016034
Kind Code:
A1
Abstract:
The present application relates to the technical field of foundations, and relates in particular to a pile end bottom grouting apparatus, a cast-in-place pile and a construction method therefor, aimed at solving the defect in the prior art that grouting cavity rupture timing and condition control is difficult. The pile end bottom grouting apparatus comprises a fixing plate; a grout storage bag, fixed on the fixing plate, wherein the grout storage bag forms an accommodating cavity suitable for accommodating grout, or the grout storage bag and the fixing plate define an accommodating cavity suitable for accommodating grout. The grout storage bag has a filled state in which the inside is filled with grout to bear a pile body, and a collapsed state in which the inside is hollow. The grout storage bag is preset with a fixed limit pressure-bearing strength value, and is fixed in volume in the filled state.
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Inventors:
GAO YONGGUANG (CN)
GAO YUNFEI (CN)
GAO YUNFEI (CN)
Application Number:
PCT/CN2022/094671
Publication Date:
February 16, 2023
Filing Date:
May 24, 2022
Export Citation:
Assignee:
GAO YONGGUANG (CN)
GAO YUNFEI (CN)
GAO YUNFEI (CN)
International Classes:
E02D5/62
Foreign References:
| CN113737786A | 2021-12-03 | |||
| CN110896646A | 2020-03-20 | |||
| CN203514303U | 2014-04-02 | |||
| CN103469792A | 2013-12-25 | |||
| CN106759277A | 2017-05-31 | |||
| CN107780308A | 2018-03-09 | |||
| CN108411920A | 2018-08-17 | |||
| JP2006138100A | 2006-06-01 | |||
| JP2005194766A | 2005-07-21 | |||
| JP2001214438A | 2001-08-07 |
Attorney, Agent or Firm:
SUNSHINE INTELLECTUAL PROPERTY INTERNATIONAL CO., LTD. (CN)
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