Title:
CAST-IN-PLACE CONCRETE PILE CONSTRUCTION METHOD AND CAST-IN-PLACE CONCRETE PILE
Document Type and Number:
Japanese Patent JP2019183494
Kind Code:
A
Abstract:
To provide a cast-in-place concrete pile construction method capable of excavating holes for expanded bottom piles and connecting piles adjacent to each other with the same excavator, capable of efficiently and economically constructing expanded bottom piles consisting of multiple expanded bottom piles and connected piles, and a cast-in-place concrete pile.SOLUTION: A ground improvement body 15 is formed by improving the ground G of a pair of adjacent expanded bottom piles 1 or the ground G of a connecting pile 8. Preliminary excavation using an excavator 9 for piles is performed to form an excavation hole 10 in the ground G of the connected pile 8 where the ground improvement body 15 is not formed or the ground G of a pair of adjacent expanded bottom piles 1. A continuous excavation hole is formed by communicating with the excavation hole 10 formed in the preceding excavation while forming an excavation hole 11 by the subsequent excavation using the pile excavator 9 and guiding the ground G of the pair of adjacent expanded bottom piles 1 forming the ground improvement body 15 or the ground G of the connecting pile part 8 in the vertical direction with the ground improvement body 15.SELECTED DRAWING: Figure 1
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Inventors:
MANO HIDEYUKI
Application Number:
JP2018075059A
Publication Date:
October 24, 2019
Filing Date:
April 09, 2018
Export Citation:
Assignee:
SHIMIZU CONSTRUCTION CO LTD
International Classes:
E02D5/18; E02D5/44; E02D5/48
Domestic Patent References:
| JP2004360252A | 2004-12-24 | |||
| JPS63315724A | 1988-12-23 | |||
| JPS6070692U | 1985-05-18 | |||
| JPH06317078A | 1994-11-15 | |||
| JP2000096969A | 2000-04-04 | |||
| JP2010031561A | 2010-02-12 | |||
| JP2005241262A | 2005-09-08 | |||
| JP2016199966A | 2016-12-01 |
Attorney, Agent or Firm:
Yasushi Matsunuma
Kenichi Kawabuchi
Nishizawa Kazumi
Kenichi Kawabuchi
Nishizawa Kazumi