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Quantitative analysis method for situation that bottomland wavebreak forest planting is unfavorable for river channel flood

A quantitative analysis and wave prevention technology, applied in image data processing, special data processing applications, instruments, etc., can solve problems such as unfavorable experimental scheme switching and comparison, and achieve wide applicability, strong practicability, and ensure flood safety. Effect

Active Publication Date: 2018-09-04
HOHAI UNIV
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  • Application Information

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Problems solved by technology

However, the water tank experiment is limited by the venue and funds, which is not conducive to the switching and comparison of different experimental schemes

Method used

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  • Quantitative analysis method for situation that bottomland wavebreak forest planting is unfavorable for river channel flood
  • Quantitative analysis method for situation that bottomland wavebreak forest planting is unfavorable for river channel flood
  • Quantitative analysis method for situation that bottomland wavebreak forest planting is unfavorable for river channel flood

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Embodiment Construction

[0017] The present invention will be further described below in conjunction with accompanying drawing.

[0018] This technology is applied in the construction of anti-wave forest in Nenjiang River in Heilongjiang Province. Nenjiang River is the northern source of Songhua River, a tributary of Heilongjiang River. The Dongyang embankment section of the main stream of the Nen River is selected as the research area. The Dongyang embankment is located on the right bank of the middle reaches of the Nen River, about 55km away from the upper reaches of the Nierji Reservoir. The current total length of the embankment is 34.088km. one encounter.

[0019] Quantitative analysis method provided by the invention comprises the steps:

[0020] a. Obtain and digitize the terrain and structure conditions of the study area through survey and data collection, generate 3D terrain files, and obtain unstructured terrain grids in the study area through processing and correction.

[0021] Simplify t...

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Abstract

The invention discloses a quantitative analysis method for a situation that bottomland wavebreak forest planting is unfavorable for river channel flood. The method comprises the following steps of a,obtaining terrain and structure conditions of a research region through reconnaissance and data collection, performing data processing to generate a three-dimensional terrain file, and obtaining a non-structure terrain grid of the research region through processing and correction; b, building a two-dimensional unsteady flow numerical model, and performing parameter setting and verification on themodel; c, performing structure simplification on a wavebreak forest, thereby simplifying each tree into a bridge pier; and d, by adopting a control variable method, simulating the influence of different wavebreak forest schemes on the river channel flood under different water inflow conditions. According to the method, the hydrologic characteristics of an actual river channel can be really and objectively reflected; and the negative influence of the wavebreak forest planting on the river channel flood, and the influence degree can be analyzed more accurately and scientifically, so that the wavebreak forest planting is reasonably planned and the river channel flood safety is ensured; and the method has relatively high practicality and wide applicability.

Description

technical field [0001] The invention relates to the technical field of anti-wave forests, in particular to a quantitative analysis method for the planting of anti-wave forests on beaches, which is not conducive to river flood discharge. Background technique [0002] In order to pay attention to the eco-hydrological effect of rivers, the measures of river ecological revetment engineering have been more and more applied. As a kind of ecological bank protection engineering measures, anti-wave forest can not only improve the ecological system environment of rivers, but also effectively reduce the wave climbing in front of the embankment and prolong the service life of embankments. It is widely used in large rivers in my country. However, planting anti-wave forests in front of the embankment will lead to problems such as the reduction of the water passing area during the flood period, which may have an adverse impact on the flood discharge of the river. At present, the research ...

Claims

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Application Information

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IPC IPC(8): G06F17/50G06T17/00
CPCG06T17/00G06F30/20Y02A10/40
Inventor 董增川任杰徐伟周悦韦一鸣张方煜王建婷任黎
Owner HOHAI UNIV
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