Title:
METHOD FOR DETECTING AND REPAIRING WATER LEAKAGE POINT IN IMPERVIOUS SHEER AND ITS LAYING STRUCTURE
Document Type and Number:
Japanese Patent JP3155186
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To repair water leakage points easily by forming a filling space partitioned with a partitioning member between a water impervious sheet and a sand protective sheet, detecting a leak current by electric detecting terminals on the impervious sheet so as to specify the leakage points, and filling the specified filling space with an impregnant for repair and solidifying it.
SOLUTION: The horizontal electric field distribution in a waste treatment site 10 that is measured by electrodes 17 provided on a water impervious sheet 12 and the resistivity measured in advance are used to specify the water leakage points. After the points are specified, a block partitioned with a mat-like unwoven cloth 15 is filled with an impregnant for repair and solidified thereafter. Namely, an injection pipe 20 is installed toward the filling space held by a net resin mat 16 in a block including water leakage position, at such a position that it is brought into contact with a sand protective sheet 18, and an impregnant is injected and solidified. When the impervious sheet 12 is laid with a laying structure 14, the pipe 20 is arranged in advance on the bottom and slope of the site 10 in a manner that it may communicates with the filling spaces of respective blocks. Thus, the water barrier sheet can be repaired without removing the waste 11.
Inventors:
Ishida, Michihiko
Kawaguchi, Takeshi
Kawaguchi, Takeshi
Application Number:
JP34367095A
Publication Date:
April 09, 2001
Filing Date:
December 28, 1995
Export Citation:
Assignee:
OHBAYASHI CORP
TAIYO KOGYO KK
TAIYO KOGYO KK
International Classes:
G01M3/16; G01M3/04; (IPC1-7): G01M3/16
Attorney, Agent or Firm:
一色 健輔 （外２名）