An inversion model of an accident in an open channel water delivery system and a method for determining the flow and location of the accident

Abstract

The invention discloses an inversion model of an accident in an open channel water delivery system and a method for determining the accident flow and location. The invention adds the normal water intake flow and the accident flow on the basis of the ID model to establish an inversion linear model. The inversion linear model includes The water surface area and lag time are two parameters. The water surface area and lag time are identified through parameter identification, and then the lag time of the accident impact is calculated through the lag time obtained from the identification. The accident location is determined by combining the time difference between the upstream and downstream water levels. The water surface area is substituted into the inversion linear model to calculate the accident discharge. The present invention can obtain relatively accurate accident source information, which is of great significance for quickly starting the emergency plan, reducing the adverse effects of the accident, and ensuring the structural safety of the canal system or the water diversion project itself; the established accident inversion model has a strong mechanism and requires calculation The force is small, which is conducive to improving work efficiency, accuracy and real-time performance.

Description

technical field [0001] The invention belongs to the field of water conservancy, and relates to an accident identification technology of an open channel water delivery system, in particular to an inversion model of an open channel water delivery system accident and a method for determining accident flow and location. Background technique [0002] Water resources are very important natural resources, strategic economic resources, and an integral part of a country's comprehensive national strength. The problem of water resources in my country is very prominent. The per capita water resources in my country are 2200m 3 At present, 16 provinces (cities, districts) have per capita water resources below the severe water shortage standard, and 6 provinces and districts have per capita water resources below 500m 3 . At the same time, my country's water resources are also characterized by (1) uneven distribution between years and years, frequent droughts and floods, and prominent con...

AI Technical Summary

Problems solved by technology

Accident inversion is a necessary condition for launching an emergency plan in a targeted manner, because only by knowing the type of accident, the accident pond, the specific location of the accident, and the severity of the accident can an appropriate emergency plan be proposed. Accident inversion is the basis of emergency dispatch However, at present, it is very difficult to obtain accurate and specific information about the accident. Often, after the accident continues to develop for a period of time, the large water level and flow fluctuations in the system are observed by the management personnel, and then the on-site canal patrol can be confirmed. Especially when the accident happens at night, the response cycle will be longer

In this way, a lot of time is wasted, the best time to reduce accident losses through accident scheduling is missed, and the risk of accidents continuing to develop into other more vicious accidents or causing secondary disasters is increased.

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