A method for calculating river silt removal amount

Abstract

A method for calculating river silt removal amount is disclosed. The method includes the steps of dividing the length to be desilted into N unit segments, obtaining the section depth of each unit segment separately, dividing the horizontal plane of a unit segment into m triangles along its length direction, obtaining the area of the triangle and the elevation of the three vertices, calculating thevolume of the triangle correspond to the triangular prism, obtaining the required depth after dredging, calculating the volume of triangular elevation after desilting, calculating that desilting amount of each triangle correspond to the river region, utilizing the triangle to differentiate each unit segment, calculating the desilting amount volume of each triangle in each unit segment, reducing the measurement error, summing up the desilting amounts of all the triangle corresponding to the river region to be the desilting amount of the unit segment, thereby obtaining the accurate result. Themethod is helpful to put forward the best design and construction scheme, and has very important positive significance to save precious land resources, reduce investment and improve engineering benefit.

Description

technical field [0001] The invention relates to the calculation of the amount of silt removal at the bottom of rivers and lakes, and belongs to the calculation method of the amount of silt removal in the river and lake treatment process. Background technique [0002] Rivers play an important role for human beings, and river governance and the current problems faced by rivers have attracted much attention. Sediment is a potential source of pollution for rivers. When the external pollution sources of the river are all cut off, the pollutants in the sediment of the river will be released and enter the water body, causing pollution. Therefore, the bottom mud is not only a "source" but also a "sink" of river pollution, which is very harmful. The method of engineering treatment generally adopts dredging engineering, that is, environmental protection dredging. The dredging project is one of the effective engineering measures to cut off the internal source pollution of the river. ...

AI Technical Summary

Problems solved by technology

The dredging project requires a large investment, occupies more land resources, and involves many aspects such as technology, economy and its impact on the environment.

Usually, the estimation method is used to budget the dredging volume, and the dredging volume is preset, which may easily lead to inaccurate estimation of the dredging volume, resulting in excessive investment or waste of land occupation

There is no reasonable standard to calculate the amount of dredging and make a reasonable budget

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