A calculation method of river warning water level

Abstract

The invention discloses a river warning water level calculating method. The river warning water level calculating method comprises determining the minimum warning duration; determining the danger water level and the danger flow; selecting a typical flood process in dependence on the protection capability and the significance of a flood control object; and determining the warning water level on line on the typical flood process in dependence on data of the danger water level and the warning duration and the like.

Description

technical field [0001] The invention relates to a method for calculating the warning water level of a river, and belongs to the technical field of formulating the characteristic water level of river flood control. Background technique [0002] The warning water level refers to the water level at which the water level of rivers and lakes rises to the point where dangers may occur in the river section. There is a warning water level, which generally directly or indirectly reflects the degree of flood crisis in the protected area, and is provided to the flood control command department as a basis for decision-making and command. When this water level is reached, the flood control work enters an important period. Patrol alert. The warning water level is related to the overall situation of flood control in the river channel and embankment area. The water level must be set appropriately. If the water level is too high, it will increase the risk of flood control and cause losses. ...

AI Technical Summary

Problems solved by technology

The warning water level is related to the overall situation of flood control in the river channel and embankment area. The water level must be set appropriately. If the water level is too high, it will increase the risk of flood control and cause losses. , financial and material resources bring certain losses

At present, the drafting of the warning water level mainly relies on the flood control experience of the flood control department, supplemented by a certain water level frequency analysis method; for river sections with embankments, the water level at the foot of the embankment is generally used as the warning water level in experience; The method of drafting the water level is still mainly based on the experience of the local flood control department. The warning water level is drawn up in this way and fully considers and gives full play to the value of the flood control work experience of the local flood control department. There are still some problems in safety and applicability

At present, most of the research on the warning water level still has certain limitations, and the research methods are mostly limited to the specific engineering practice of a certain type of project, which lacks versatility

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