Title:
地面の掘削孔への地中熱交換器に係る管部材の建て込み方法
Document Type and Number:
Japanese Patent JP5712597
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To facilitate build of a pipe member into a target depth without using a large-scale auxiliary member such as a balance weight when the pipe member whose specific gravity is smaller than liquid is lowered and built along its pipe axis direction, into a borehole filled with liquid.SOLUTION: The method is related to lowering and build of the pipe member of an underground heat exchanger, whose specific gravity is smaller than the liquid, along the pipe axis direction of the pipe member, into the borehole filled with the liquid. By extracting the liquid in the borehole by a predetermined quantity during build of the pipe member, the level of the liquid is lowered.
Inventors:
Kaneko Tadashi
Yasuyuki Everyda
Kenji Mioda
Yasuyuki Everyda
Kenji Mioda
Application Number:
JP2010279747A
Publication Date:
May 07, 2015
Filing Date:
December 15, 2010
Export Citation:
Assignee:
Obayashi Corporation
International Classes:
F24J3/08; E21B43/00
Domestic Patent References:
| JP8285480A | ||||
| JP11182942A | ||||
| JP2008267773A | ||||
| JP2009228419A | ||||
| JP2003130471A | ||||
| JP2010060247A | ||||
| JP8029079A | ||||
| JP2005351558A | ||||
| JP2011524967A |
Attorney, Agent or Firm:
Isshiki International Patent Service Corporation