Title:
水位回復観測装置
Document Type and Number:
Japanese Patent JP4689702
Kind Code:
B2
Abstract:
A water level recovery observation apparatus is provided to shorten the time required for the field hydraulics test, and to observe the water level recovery effectively regardless of the water permeability of a medium. A water level recovery observation apparatus comprises a first packer(110) selectively adhered closely to the inside of a bore hole, a supply tube(140) supplying expanded fluids to the inside of the first packer, a guide tube(150) connected with a picking space of the lower part of the first packer and guiding the fluids existing in the picking space to the outside of the bore hole, and an observation tube(170) having the cross sectional area smaller than the guide tube, connected to the guide tube and providing a flow passage for flowing the fluids existing in the picking space.
Inventors:
Ko Young Kwon
Ji Sung Hoon
Kim Gong Young
Chebyeon Young
Choi Jong Won
Ji Sung Hoon
Kim Gong Young
Chebyeon Young
Choi Jong Won
Application Number:
JP2008162017A
Publication Date:
May 25, 2011
Filing Date:
June 20, 2008
Export Citation:
Assignee:
KOREA ATOMIC ENERGY RESEARCH INSTITUTE
Korea Hydro and Nuclear Power Company Limited
Korea Hydro and Nuclear Power Company Limited
International Classes:
G01V9/02; E02D1/06
Domestic Patent References:
| JP54161704A | ||||
| JP2304112A | ||||
| JP5850215A | ||||
| JP6294116A | ||||
| JP2002250026A | ||||
| JP835979A | ||||
| JP9111744A |
Other References:
田中靖治、他,低透水性岩盤を対象とした多機能型透水試験装置の開発,電力中央研究所我孫子研究所報告,1992年,U92019,P.1-36
Attorney, Agent or Firm:
Sakuo Yamaguchi