METHOD FOR MEASURING DEGREE OF SATURATION OF GROUND

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.SO...

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Bibliographic Details
Main Authors MIYOSHI AKIHIRO, OKAMURA MITSU, FUJII SUNAO, YAMADA NAOYUKI, SAEGUSA HIROYUKI
Format Patent
LanguageEnglish
Published 24.05.2012
Subjects
DETECTING MASSES OR OBJECTS
EMBANKMENTS
EXCAVATIONS
FIXED CONSTRUCTIONS
FOUNDATIONS
GEOPHYSICS
GRAVITATIONAL MEASUREMENTS
HYDRAULIC ENGINEERING
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
SOIL SHIFTING
TESTING
UNDERGROUND OR UNDERWATER STRUCTURES
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Summary: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.
Bibliography:Application Number: JP20100245280