Development of measuring technique of ground displacement in the toe of landslide
-
- HIGUCHI Kei
- Erosion and Sediment Control Research Group, Public Works Research Institute
-
- FUJISAWA Kazunori
- Erosion and Sediment Control Research Group, Public Works Research Institute
-
- TOUHEI Masaru
- Erosion and Sediment Control Research Group, Public Works Research Institute
-
- OKAWA Shigeru
- KOWA co., ltd.
-
- SHIMOMURA Hiroyuki
- PASCO co., ltd.
-
- SAKATA Takeo
- RADIC co., ltd.
Bibliographic Information
- Other Title
-
- 地すべり地末端の崩壊斜面における地盤変位の計測手法の開発
- ジスベリチ マッタン ノ ホウカイ シャメン ニ オケル ジバン ヘンイ ノ ケイソク シュホウ ノ カイハツ
Search this article
Abstract
Sediment deposited at the foot of landslides stabilizes them temporarily, but removal of such sediment when installing emergency measures requires extra caution to avoid reactivating the landslide. It is therefore necessary to remotely monitor the movement of landslides to avoid secondary disasters for safety reasons as well as for reliable monitoring.<br>One of the main remote monitoring methods is to use a non-prism type optical total-station, which is useful for measuring the ground displacement from observation stations because no measurement target is needed. However, the measurement error may be higher than that of an optical total-station that uses targets, and measurement at night is extremely difficult. To overcome these problems, in this study we developed a new method of remotely setting up targets for an optical total-station from landslides. This new method uses a crossbow and a paint capsule attached at tip of arrow. A paint capsule is launched by crossbow, broken and gets on slope as a target of total-station with ± 300cm of accuracy at 300m distance. The target helps the displacement monitoring in landslide.
Journal
-
- Journal of the Japan Landslide Society
-
Journal of the Japan Landslide Society 44 (6), 385-392, 2008
The Japan Landslide Society
- Tweet
Keywords
Details 詳細情報について
-
- CRID
- 1390001205201801088
-
- NII Article ID
- 10021228651
-
- NII Book ID
- AA11837172
-
- ISSN
- 18820034
- 13483986
-
- NDL BIB ID
- 9439955
-
- Text Lang
- ja
-
- Data Source
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- Abstract License Flag
- Disallowed