Title:
杭構築方法及びリバース掘削システム
Document Type and Number:
Japanese Patent JP6662543
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a pile construction method and a reverse construction method excavation system that are capable of reducing the amount of soil to be prepared for temporary backfilling of an upper space of a hole in which a pile is constructed.SOLUTION: A reverse excavation system comprises: an excavator capable of forming, in the ground, a hole in which a pile is constructed while leaving an upper space, by using a reverse construction method; and a slurry circulation system configured to supply slurry to a hole under excavation by the excavator and make slurry including sediment be discharged from the inside of the hole under excavation in order to reuse the slurry in the hole under excavation. The slurry circulation system includes at least one storage tank for temporarily storing the slurry including sediment discharged from the inside of the hole under excavation. At least one of the at least one storage tank is constituted by an upper space of another hole in which a pile is constructed.SELECTED DRAWING: Figure 1
Inventors:
Nobuyuki Sugawara
Tetsuji Awane
Toshiro Inoue
Kenji Hashidate
Tetsuji Awane
Toshiro Inoue
Kenji Hashidate
Application Number:
JP2015202093A
Publication Date:
March 11, 2020
Filing Date:
October 13, 2015
Export Citation:
Assignee:
Sugawara Construction Co., Ltd.
Hachishu Construction Machinery Co., Ltd.
Japan Pile Co., Ltd.
Hachishu Construction Machinery Co., Ltd.
Japan Pile Co., Ltd.
International Classes:
E21B7/12; E02D5/36; E21B47/04
Domestic Patent References:
| JP6154763A | ||||
| JP2004263561A | ||||
| JP2008101388A | ||||
| JP7310487A | ||||
| JP2012057356A | ||||
| JP2000160550A |
Foreign References:
| US20090274522 |
Attorney, Agent or Firm:
Masao Tsuji