Title:
JUDGING METHOD AND JUDGING DEVICE FOR STABILITY OF UNDERGROUND STRUCTURE
Document Type and Number:
Japanese Patent JP3880327
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To easily judge stability to the infiltration of seawater in an under ground structure such as a submarine tunnel where leak of water including seawater exists.
SOLUTION: Flow of leaking water and concentration of sodium ions are measured through the year to be taken as basic data. When the flow of leaking water is within a range of the basic data, with the concentration of sodium ions deviated from a range of the basic data, it is judged that stability of the under ground structure is deteriorated.
Inventors:
Hiroyuki Sakai
Application Number:
JP2001101472A
Publication Date:
February 14, 2007
Filing Date:
March 30, 2001
Export Citation:
Assignee:
Railway Technical Research Institute
International Classes:
E02D1/06; E02D29/045; E21D13/00; G01M3/02; (IPC1-7): E02D1/06; E02D29/045; E21D13/00; //G01M3/02
Domestic Patent References:
| JP6101399A |
Attorney, Agent or Firm:
Tetsuo Hirose
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