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Title:
GROUND SURVEY METHOD
Document Type and Number:
Japanese Patent JP2008281404
Kind Code:
A
Abstract:

To prevent a ground depression from occurring due to the mechanism where the ground is depressed due to a cavity formed by a water channel making earth and sand fluidized, by determining whether such the condition exists that the water channel possibly makes the earth and sand fluidized in the ground.

The process of bringing liquid to sink into the ground from a ground surface and the process of carrying out a three-dimensional electrical exploration, are repeated one or more than one times. Then, a place is sensed where the liquid very much sinks into the ground; in comparison with a distribution of the liquid sinking into the ground, thereby specifying the place having risk of the ground depression.


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Inventors:
SHIOGAMA YUZO
KUNO HARUHIKO
KOBAYAKAWA HIROSUKE
SUZUKI KOICHI
SUENAGA HIROSHI
Application Number:
JP2007125034A
Publication Date:
November 20, 2008
Filing Date:
May 09, 2007
Export Citation:
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Assignee:
CENTRAL RES INST ELECT
International Classes:
G01N27/20; E02D1/00
Domestic Patent References:
JP2000352042A2000-12-19
JP3866757B12007-01-10
JP2006322747A2006-11-30
Attorney, Agent or Firm:
Kazumi Murase



 
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