Title:
SUBSIDENCE MEASURING TECHNIQUE AND DEVICE THEREOF
Document Type and Number:
Japanese Patent JP2007114079
Kind Code:
A
Abstract:
To provide a subsidence measuring technique and a device thereof, capable of simply measuring a large number of depths, with superior cost benefit and workability.
The subsidence measuring technique is characterized by burying a retractable subsidence measurement pipe 3, with indicators 2 prepared at a predetermined interval unifying with ground into a borehole 1 drilled by boring and the like, measuring the depths of each indicator, by observing the indicators in the subsidence measurement pipe by means of a borehole observing camera 4 with the depth-measuring function, and deriving the value of subsidence at the depths of each indicator from the temporal variations at the depths of each indicator.
More Like This:
| JPH11166237 | DEBRIS-AVALANCHE SENSOR |
| JPH109856 | EARTH-VOLUME MANAGING APPARATUS |
| JP3603836 | Road white line recognition device |
Inventors:
TAKEUCHI KATSUNOBU
Application Number:
JP2005306662A
Publication Date:
May 10, 2007
Filing Date:
October 21, 2005
Export Citation:
Assignee:
TAKEUCHI KATSUNOBU
International Classes:
G01C7/02; E02D1/00; G01B11/22
Attorney, Agent or Firm:
Yoichi Kobayashi