Title:
METHOD FOR MEASURING DEGREE OF SATURATION OF GROUND
Document Type and Number:
Japanese Patent JP2012097445
Kind Code:
A
Abstract:
To provide a method for measuring the degree of saturation of ground, which enables high-precision measurement when the degree of saturation of the ground is measured on the basis of specific resistance of sand ground undergoing injection of air so as to prevent liquefaction.
A long hole H is drilled by a drilling rod through the use of drilling water with specific resistance within an allowable range preset with respect to specific resistance of in-situ groundwater, and electrodes 6 are installed in the long hole H. The degree of saturation of sand ground, into which air A is injected through an air injection pipe 3, is measured on the basis of the specific resistance detected between the electrodes 6.
Inventors:
OKAMURA MITSU
SAEGUSA HIROYUKI
MIYOSHI AKIHIRO
FUJII SUNAO
YAMADA NAOYUKI
SAEGUSA HIROYUKI
MIYOSHI AKIHIRO
FUJII SUNAO
YAMADA NAOYUKI
Application Number:
JP2010245280A
Publication Date:
May 24, 2012
Filing Date:
November 01, 2010
Export Citation:
Assignee:
SHIKOKU REGIONAL DEV BUREAU MINISTRY OF LAND INFRASTRUCTURE & TRANSP
UNIV EHIME
TOA HARBOR WORKS CO LTD
FUDO TETRA CORP
ORIENTAL SHIRAISHI CORP
DIA CONSULTANT KK
UNIV EHIME
TOA HARBOR WORKS CO LTD
FUDO TETRA CORP
ORIENTAL SHIRAISHI CORP
DIA CONSULTANT KK
International Classes:
E02D1/00; G01N27/04; G01N33/24; G01V3/02
Domestic Patent References:
| JP2010189961A | 2010-09-02 | |||
| JP2002181953A | 2002-06-26 | |||
| JP2010230433A | 2010-10-14 | |||
| JP2008008067A | 2008-01-17 |
Attorney, Agent or Firm:
Shinichi Ogawa
Takashi Noguchi
Takayoshi in the daytime
Kenji Sato
Isao Hirai
Masao Sakaizawa
Kazuhiko Saishita
Takashi Noguchi
Takayoshi in the daytime
Kenji Sato
Isao Hirai
Masao Sakaizawa
Kazuhiko Saishita