SHIKOKU REGIONAL DEVELOPMENT BUREAU MINISTRY OF LAND INFRASTRUCTURE &, TRANSPORT;EHIME UNIV;TOA HARBOR WORKS CO LTD;FUDO TETRA CORP;ORIENTAL SHIRAISHI CORP;DIA CONSULTANT:KK
发明人:
申请号：
JP20100245280
公开号：
JP2012097445(A)
申请日:
2010.11.01
申请国别(地区):
日本
年份:
2012
代理人:
摘要：
<p><P>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. <P>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. <P>COPYRIGHT: (C)2012,JPO&INPIT</p>
