Title:
CONSTRUCTION METHOD FOR IMPROVING BEARING CAPACITY OF CONCRETE CAST-IN-PLACE PILE
Document Type and Number:
WIPO Patent Application WO/2021/237766
Kind Code:
A1
Abstract:
A construction method for improving the bearing capacity of a concrete cast-in-place pile. The method is mainly for large-thickness collapsible loess and large-thickness miscellaneous fill backfilling sites; the bearing capacity of a pile end can be greatly improved, such that the pile length and the pile diameter are reduced; in addition, the construction uses a steel pile pipe, such that a potential quality hazard caused by a hole collapse can be avoided, and the construction difficulty and cost will not be increased. The technology of the present invention has the characteristics of low construction costs, a high speed, easy quality control and a high single pile bearing capacity.
Inventors:
LIU QINGJIE (CN)
Application Number:
PCT/CN2020/094110
Publication Date:
December 02, 2021
Filing Date:
June 03, 2020
Export Citation:
Assignee:
LIU QINGJIE (CN)
International Classes:
E02D5/34; E02D5/44; E02D5/68; E02D7/06; E02D15/04
Foreign References:
| CN102268877A | 2011-12-07 | |||
| CN101220592A | 2008-07-16 | |||
| CN101768970A | 2010-07-07 | |||
| CN102733377A | 2012-10-17 | |||
| CN1354307A | 2002-06-19 | |||
| CN1621626A | 2005-06-01 | |||
| CN104711976A | 2015-06-17 | |||
| CN103114579A | 2013-05-22 | |||
| EP3628782A1 | 2020-04-01 |
Attorney, Agent or Firm:
BEIJING GAOWO LAW FIRM (CN)
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