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Title:
HYDRAULIC TESTING APPARATUS
Document Type and Number:
Japanese Patent JP2010024725
Kind Code:
A
Abstract:

To provide a hydraulic testing apparatus of high versatility applicable to various hydraulic tests.

This hydraulic testing apparatus 20 comprises: packers 2a, 2b installed in a bore hole 1; a first communicating pipe 3 serving for communication between a test section Z formed by the packers 2a, 2b and a ground facility; a first on-off valve 3a provided near the test section Z to open/close a passage of the first communicating pipe 3; and a borehole pump 5 provided above the first on-off valve 3a to pump up underground water toward the ground facility through the first communicating pipe 3. The borehole pump 5 has a passage serving for communication between the upper side and lower side of the borehole pump 5 so as not to block the first communicating pipe 3 in a stop state.


Inventors:
ATSUMI HIROYUKI
SEO SHOJI
TOIDA KATSU
Application Number:
JP2008187741A
Publication Date:
February 04, 2010
Filing Date:
July 18, 2008
Export Citation:
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Assignee:
KAJIMA CORP
International Classes:
E02D1/00
Domestic Patent References:
JP2008063825A2008-03-21
JPH09111744A1997-04-28
JPH0427095A1992-01-30
Attorney, Agent or Firm:
Yoshiki Hasegawa
Yoshiki Kuroki



 
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