A method for site selection and scale estimation of check dams

Abstract

The invention provides a method for planning site selection and scale estimation of a check dam, comprising: conducting a virtual survey of a three-dimensional model of a planning area, initially selecting a planning point of a check dam according to a planning target, and constructing a road network of a three-dimensional model of the planning area According to the topographic and geological conditions of the planning area, the selected check dam project points are selected; according to the 3D model, the boundary trend of the watershed where the project point is located is tracked, the area where the corresponding project is located is delineated, and the delineation is obtained. Elevation data of the area; use the contour line function to obtain the topographic map of the area where the project is located, calculate the watershed characteristics and storage capacity curve of the check dam project point according to the new topographic map, and then estimate the scale of the check dam project, and output it for display. It can quickly and conveniently complete the initial planning site selection and scale estimation of the check dam, and can effectively solve the difficulty of lack of terrain data in the small watershed where the check dam is located, greatly reducing the economic cost and time cost.

Description

technical field [0001] The invention relates to the technical field of engineering planning, in particular to a method for planning site selection and scale estimation of a check dam. Background technique [0002] Long-term practice has proved that check dams are an effective engineering measure to prevent and control soil erosion in the Loess Plateau. Sand, and promote local economic development in the Loess Plateau region, played an extremely important historical role. In the new era, with the proposal and implementation of the national strategy for ecological protection and high-quality development of the Yellow River Basin, check dams, as an important water and soil conservation engineering measure in the Loess Plateau, have been endowed with stronger vitality. [0003] In order to ensure the scientific rationality of the project layout of the check dam, it is necessary to carry out planning, selection and project scale estimation in advance. However, the check dam is b...

AI Technical Summary

Problems solved by technology

However, as a small soil and water conservation project, the check dam project has a long-term shortage of planning, design and construction funds. For the planning and selection of large areas and large quantities, the area involved is wider, and it is difficult to invest a large amount of funds in the preliminary work to support this work. Carry out surveying and mapping work, which brings great inconvenience to the planning, site selection and scale estimation of the check dam project

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