Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
HOLLOW TUBE FOR DISPLACEMENT-REDUCED TYPE COMPACTING SAND-PILE CREATION AND COMPACTING SAND-PILE CREATING METHOD
Document Type and Number:
Japanese Patent JP2018059285
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a hollow tube for compacting sand-pile creation and a compacting sand-pile creating method, which solve a displacement problem adversely affecting existing structures and improve construction efficiency.SOLUTION: A method sequentially repeats, until reaching a ground surface, the following processes: a process to intrude a hollow tube 1, in which a stirring blade 12 is formed at a tip of the hollow tube 1 and an injecting outlet 13 for injecting jet water is formed around the hollow tube 1, into a predetermined depth by rotating the hollow tube 1 with injecting jet water through the injecting outlet 13 so as to loosen soil around the hollow tube 1; a process to discharge a sand-pile material 19 in the hollow tube 1 by pulling out the hollow tube 1 to a proper length; and a process to perform driving-back of the hollow tube 1, in order to create a compacting sand-pile 42 in a soft ground.SELECTED DRAWING: Figure 6

Inventors:
ISOTANI SHUJI
NEGISHI YASUAKI
YABE HIROSHI
Application Number:
JP2016195693A
Publication Date:
April 12, 2018
Filing Date:
October 03, 2016
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
FUDO TETRA CORP
International Classes:
E02D3/08; E02D3/10
Domestic Patent References:
JPS5833534U1983-03-04
JP2016145514A2016-08-12
JP2004183310A2004-07-02
JP2003261933A2003-09-19
JPH09328745A1997-12-22
JP2010133232A2010-06-17
JP2000120364A2000-04-25
JP2001040647A2001-02-13
JP2003119767A2003-04-23
Foreign References:
US4487524A1984-12-11
Attorney, Agent or Firm:
Kenji Akatsuka
Yasuyuki Sakata
Ken Shibuya



 
Previous Patent: A diverging device for single lever cocks

Next Patent: A pollutants removal device of contamination water