JPS57205608A - Controller for falling of inflatable film dam - Google Patents

Controller for falling of inflatable film dam

Info

Publication number
JPS57205608A
JPS57205608A JP9083881A JP9083881A JPS57205608A JP S57205608 A JPS57205608 A JP S57205608A JP 9083881 A JP9083881 A JP 9083881A JP 9083881 A JP9083881 A JP 9083881A JP S57205608 A JPS57205608 A JP S57205608A
Authority
JP
Japan
Prior art keywords
controller
dam
falling
exhaust valves
air
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
Application number
JP9083881A
Other languages
Japanese (ja)
Inventor
Nobuo Inoue
Hisashi Yonekawa
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bridgestone Corp
Original Assignee
Bridgestone Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bridgestone Corp filed Critical Bridgestone Corp
Priority to JP9083881A priority Critical patent/JPS57205608A/en
Publication of JPS57205608A publication Critical patent/JPS57205608A/en
Pending legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B7/00—Barrages or weirs; Layout, construction, methods of, or devices for, making same
    • E02B7/005—Deformable barrages or barrages consisting of permanently deformable elements, e.g. inflatable, with flexible walls

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Civil Engineering (AREA)
  • Barrages (AREA)

Abstract

PURPOSE:To improve the reliability of control and the accuracy of regulation on the height of an inflatable film dam by a method in which plural exhaust valves of different port diameters are provided to the inflatable film dam to be used for obtaining agricultural water, and the exhaust valves are selectively opened or closed. CONSTITUTION:When sending a falling command signal from a falling commander to a controller 12, valve closing or opening control signals are sent in a selective and time-sharing mannr to exhaust valve electromagentical operating portions 10a-10d from the controller 12 so as to correspond approximately to a characteristic curve. Exhaust valves 9a-9d are properly opened or closed, the air in the inflatable rubber dam 1 is released to the open air through an air supply and discharge pipe 7 and an air discharge pipe 8, and the height of the rubber dam is lowered. The water level downstream of the rubber dam 1 is detected by a level meter 11, a detection signal is fedback to the controller 12, and the water level is raised by as much as a given amount every minute.
JP9083881A 1981-06-15 1981-06-15 Controller for falling of inflatable film dam Pending JPS57205608A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9083881A JPS57205608A (en) 1981-06-15 1981-06-15 Controller for falling of inflatable film dam

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9083881A JPS57205608A (en) 1981-06-15 1981-06-15 Controller for falling of inflatable film dam

Publications (1)

Publication Number Publication Date
JPS57205608A true JPS57205608A (en) 1982-12-16

Family

ID=14009719

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9083881A Pending JPS57205608A (en) 1981-06-15 1981-06-15 Controller for falling of inflatable film dam

Country Status (1)

Country Link
JP (1) JPS57205608A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014237992A (en) * 2013-06-10 2014-12-18 三菱重工鉄構エンジニアリング株式会社 Movable breakwater

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014237992A (en) * 2013-06-10 2014-12-18 三菱重工鉄構エンジニアリング株式会社 Movable breakwater

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