Title:
PNEUMATIC CAISSON METHOD
Document Type and Number:
Japanese Patent JP2016084585
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To enhance work efficiency of a pneumatic caisson method by setting a working air pressure lower than normally planned values, made possible by appropriately managing saturation degree of construction ground.SOLUTION: Prior to installing a caisson 10, air is injected into a ground for desaturating the ground, thereby reducing an amount of groundwater flowing into a caisson work room. Specifically, an air feed pipe 20 having an air supply port 21 is inserted into a ground near the location to install the caisson 10, and air is injected into the ground while raising pressure of the supplied air as a depth of the air supply port 21 increases.SELECTED DRAWING: Figure 1
Inventors:
TEZUKA HIROAKI
MORITA ATSUSHI
YAMAUCHI TAKAHIRO
HOTATE YUTAKA
KAWANISHI ATSUSHI
ARITA JUN
MORITA ATSUSHI
YAMAUCHI TAKAHIRO
HOTATE YUTAKA
KAWANISHI ATSUSHI
ARITA JUN
Application Number:
JP2014216464A
Publication Date:
May 19, 2016
Filing Date:
October 23, 2014
Export Citation:
Assignee:
MAEDA CONSTRUCTION
International Classes:
E02D23/04; E02D19/10
Domestic Patent References:
| JPH09158196A | 1997-06-17 | |||
| JP2005282130A | 2005-10-13 | |||
| JP2013087550A | 2013-05-13 | |||
| JP2010077690A | 2010-04-08 | |||
| JP2007285052A | 2007-11-01 | |||
| JP2014012948A | 2014-01-23 | |||
| JP2014084559A | 2014-05-12 |
Foreign References:
| US20120163919A1 | 2012-06-28 |
Attorney, Agent or Firm:
Yoshihide Ogawa