Continuous and automatic water level monitoring method for rivers in severe cold areas

Abstract

The invention relates to a continuous and automatic water level monitoring method for rivers in severe cold areas and belongs to the field of water level observation of the rivers in the severe cold areas. The method comprises the steps of arranging an automatic water level monitoring device; calculating the range of a sensor; calculating a fixed point and a height of an erection pile; calculatinga drop point of the sensor; and calculating the sediment grain size of a covering layer of a protective sleeve. The method has the advantages that a bran-new sensor protective sleeve device is provided, free feeding and removing of the sensor are achieved while the sensor is prevented from being scoured by flow and being damaged by an ice dam base, and repairing and maintenance of the sensor aregreatly facilitated. A whole set of calculation methods for the range of the sensor, the fixed point and the height of the erection pile, the drop point of the sensor, the sediment grain size of the covering layer of the protective sleeve and the like are provided. The problem in continuous and automatic water level observation of a river reach with a bedload bed, a wide beach, a large water levelvariation range and an outstanding ice jam flood disaster is successfully solved; manpower and material resources are greatly reduced; and the continuous and automatic water level monitoring method has extremely high reference value for automatic water level observation of similar river reaches.

Description

technical field [0001] The invention relates to the field of river water level observation in severe cold regions, in particular to a method for continuous and automatic observation of water level in bed-forming bed, large water level variation of wide beach, and ice dam ice flood disaster prominent river section. Background technique [0002] my country has a vast territory, spanning 33 latitudes from north to south and 60 longitudes from east to west. It has a monsoon climate. At the same time, it is affected by the distribution of sea and land, latitude, and elevation of mountains. The climate varies greatly between regions. The winter in the northern region is cold, the temperature is low, and the rivers are frozen for a long time. The main rivers in Northeast China are frozen for 90-171 days, the main rivers in North China are frozen for 43-128 days, and the main rivers in Northwest China are frozen for 70-176 days. River water level observation is an important part of...

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Problems solved by technology

[0008] The invention provides a method for continuous automatic monitoring of river water levels in severe cold regions to solve the problem of lack of effective continuous automatic monitoring of water levels for rivers in severe cold regions, especially for rivers in severe cold regions, especially for bed-forming, wide-beach, large water-level fluctuations, and ice dam ice flood disasters. Problems in monitoring methods, improve the timeliness of water level observation, and provide technical support for flood control decision-making command

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