Title:
地盤の飽和度の測定方法
Document Type and Number:
Japanese Patent JP5559660
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: 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.SOLUTION: 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.
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Inventors:
Okamura Non-pair
Hiroyuki Saegusa
Akihiro Miyoshi
Fujii Direct
Naoyuki Yamada
Hiroyuki Saegusa
Akihiro Miyoshi
Fujii Direct
Naoyuki Yamada
Application Number:
JP2010245280A
Publication Date:
July 23, 2014
Filing Date:
November 01, 2010
Export Citation:
Assignee:
Ministry of Land, Infrastructure, Transport and Tourism Shikoku district maintenance bureau chief
Ehime University, National University Corporation
Toa Corp.
Incorporated company immobility tetra
Oriental Shiroishi, Inc.
Incorporated company diagram consultant
Ehime University, National University Corporation
Toa Corp.
Incorporated company immobility tetra
Oriental Shiroishi, Inc.
Incorporated company diagram consultant
International Classes:
E02D1/00; G01N27/04; G01N33/24; G01V3/02
Attorney, Agent or Firm:
Shin-ichi Ogawa
Masateru Noguchi
Daytime Takayoshi
Kenji Sato
Isao Hirai
Masao Sakaizawa
斎下 Kazuhiko
Masateru Noguchi
Daytime Takayoshi
Kenji Sato
Isao Hirai
Masao Sakaizawa
斎下 Kazuhiko