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Title:
METHOD AND DEVICE FOR UTILIZING AND MAINTAINING RIVER WATER
Document Type and Number:
Japanese Patent JP2014105548
Kind Code:
A
Abstract:

To provide a method and a device for utilizing and maintaining river water capable of facilitating development of a water utilization and management plan for effective use of a water resource, efficient water control and equal water distribution through integrated centralized control of a whole water system in a water system which: has multistage weir facilities arranged in series in a river connected to a dam; takes in water at each weir facility; and distributes the same to each beneficiary block.

A method for utilizing river water simulates a discharge plan of a dam for water utilization, water utilization plans for respective weir facilities and fluctuation in water storage volumes and/or water levels at respective weir facilities through a water balance calculation, starting from a water volume discharged by the dam for the water utilization, between inflows and outflows to and from respective weir facilities ranging from a most upstream weir facility to a most downstream weir facility. Considering respective weir facilities as tanks, the water balance calculation: uses arrival delay time corresponding to respective flow distances as variable parameters; and has variables at least for the water volume discharged by the dam, a natural flow rate of a river, a volume of a tributary inflow as makeup water, the volumes of the water utilization at respective weir facilities and a water injection volume to a downstream side as returned water from upstream water intake.


Inventors:
TAKITA SHIGEO
NUMANO KENICHIRO
Application Number:
JP2012261419A
Publication Date:
June 09, 2014
Filing Date:
November 29, 2012
Export Citation:
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Assignee:
EBARA CORP
EBARA DENSAN LTD
International Classes:
E02B7/20
Domestic Patent References:
JPS53139080A1978-12-05
JPH052768B21993-01-13
JPS60122405A1985-06-29
Attorney, Agent or Firm:
Isamu Watanabe
Ryoji Kosugi
Tetsuya Hirosawa