JPS55164309A - Scour detecting system - Google Patents
Scour detecting systemInfo
- Publication number
- JPS55164309A JPS55164309A JP7228679A JP7228679A JPS55164309A JP S55164309 A JPS55164309 A JP S55164309A JP 7228679 A JP7228679 A JP 7228679A JP 7228679 A JP7228679 A JP 7228679A JP S55164309 A JPS55164309 A JP S55164309A
- Authority
- JP
- Japan
- Prior art keywords
- pressure sensing
- flood
- sensing plate
- window
- stake
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Bridges Or Land Bridges (AREA)
Abstract
PURPOSE: To make it possible to detect scoured conditions, by driving in a hollow stake-form material, which incorporates a flow pressure sensing plate, a pressure sensing part, and a window where running water passes, onto the river bed of the bridge leg and by detecting change of water pressure generated in the flow pressure sensing plate for flood.
CONSTITUTION: Window 15, flow pressure sensing plate 16, and pressure sensing part 12 are provided in the lower part of stake-form material 8. Sand is injected to this stake-form material 8, and material 8 is driven in to the river bed of bridge leg 1 so that scouring limit line 13 may agree with river bed surface 6 for flood. Gaps where the water stream can pass in both sides of sensing plate 16 are provided. Therefore, when window 15 is exposed to water due to washing for flood, running water pressure Pa or Pb is applied to sensing plate 16 due to eddy stream dependent upon running water 18. This pressure is converted to change of a voltage by pressure sensing part 12 and a signal is obtained by a prescribed circuit. When bipolar signals exceed a fixed level value together, alarm is issued, so that scoured conditions can be detected. After the flood, the sensor is buried in earth and sand again, and special maintenance is not required.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7228679A JPS55164309A (en) | 1979-06-11 | 1979-06-11 | Scour detecting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7228679A JPS55164309A (en) | 1979-06-11 | 1979-06-11 | Scour detecting system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55164309A true JPS55164309A (en) | 1980-12-22 |
| JPS5758608B2 JPS5758608B2 (en) | 1982-12-10 |
Family
ID=13484879
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7228679A Granted JPS55164309A (en) | 1979-06-11 | 1979-06-11 | Scour detecting system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55164309A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008058170A (en) * | 2006-08-31 | 2008-03-13 | Taisei Corp | Corrosion depth measuring method and device |
| EP3450630A1 (en) * | 2017-09-05 | 2019-03-06 | National Applied Research Laboratories | Geomorphological structure monitoring system |
-
1979
- 1979-06-11 JP JP7228679A patent/JPS55164309A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008058170A (en) * | 2006-08-31 | 2008-03-13 | Taisei Corp | Corrosion depth measuring method and device |
| EP3450630A1 (en) * | 2017-09-05 | 2019-03-06 | National Applied Research Laboratories | Geomorphological structure monitoring system |
| US10914855B2 (en) | 2017-09-05 | 2021-02-09 | National Applied Research Laboratories | Geomorphological structure monitoring system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5758608B2 (en) | 1982-12-10 |
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