JPS55122913A - Investigating method and device for hydrologic invariable in geological survey - Google Patents
Investigating method and device for hydrologic invariable in geological surveyInfo
- Publication number
- JPS55122913A JPS55122913A JP2906979A JP2906979A JPS55122913A JP S55122913 A JPS55122913 A JP S55122913A JP 2906979 A JP2906979 A JP 2906979A JP 2906979 A JP2906979 A JP 2906979A JP S55122913 A JPS55122913 A JP S55122913A
- Authority
- JP
- Japan
- Prior art keywords
- water
- level
- rising
- count
- point
- 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.)
- Pending
Links
Landscapes
- Investigation Of Foundation Soil And Reinforcement Of Foundation Soil By Compacting Or Drainage (AREA)
Abstract
PURPOSE: To perform accurate measuring of a water-level rising rate by giving digital indication to the time when the rising water-level touches plural water- level sensing elements provided in a measuring hole at a given interval.
CONSTITUTION: When the water level rising up touches a sensing element (a) set in a measuring hole not shown in the fugure, a sensor 1' for starting gives a pulse, by which each of digital timers 3, 3a and 3b starts simultaneously the count of a time signal from an oscillating device 2. Later, when the water level rises higher and the surface of water reaches a point (b), the count of the timer 3 is stopped by the pulse given by the sensor 1, the value of the count being indicated on an indicating device 4. The time required for a rise up to point (c) and (d) is shown in indicating devices 4a and 4b as well. Given that the time required for rising up to the point (d) is t2 and that the distance between the points (a) and (d) is 3l, the water-level rising rate V can be found by a formula: t2/3l.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2906979A JPS55122913A (en) | 1979-03-12 | 1979-03-12 | Investigating method and device for hydrologic invariable in geological survey |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2906979A JPS55122913A (en) | 1979-03-12 | 1979-03-12 | Investigating method and device for hydrologic invariable in geological survey |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55122913A true JPS55122913A (en) | 1980-09-22 |
Family
ID=12266062
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2906979A Pending JPS55122913A (en) | 1979-03-12 | 1979-03-12 | Investigating method and device for hydrologic invariable in geological survey |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55122913A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59107638U (en) * | 1983-01-12 | 1984-07-20 | 清水建設株式会社 | Ground remote automatic measurement device |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5234161U (en) * | 1975-09-01 | 1977-03-10 |
-
1979
- 1979-03-12 JP JP2906979A patent/JPS55122913A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5234161U (en) * | 1975-09-01 | 1977-03-10 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS59107638U (en) * | 1983-01-12 | 1984-07-20 | 清水建設株式会社 | Ground remote automatic measurement device |
JPS6343228Y2 (en) * | 1983-01-12 | 1988-11-11 |
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