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Urban area-oriented greening tree wind damage risk near-real-time evaluation method

A tree and wind disaster technology, applied in the field of data processing, can solve problems such as difficult to accurately assess the risk of wind damage to green trees in the city, and achieve the effect of improving accuracy

Active Publication Date: 2021-02-19
TSINGHUA UNIV
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Problems solved by technology

However, the existing mechanical model of wind damage to trees in the forest system is suitable for the prediction and analysis of wind damage to trees in a single forest. However, a real urban area contains complex building groups and multiple forest objects, and the existing mechanical models are difficult Quantifying the hydrodynamic interactions between different forest stands in urban areas and between a forest stand and its surrounding built environment makes it difficult to accurately assess the wind damage risk of green trees in urban areas

Method used

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  • Urban area-oriented greening tree wind damage risk near-real-time evaluation method

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Embodiment Construction

[0027] Embodiments of the present application are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary, and are intended to explain the present application, and should not be construed as limiting the present application.

[0028] The following describes the near real-time assessment method, device and equipment for urban area-oriented wind damage risk assessment of green trees in the embodiment of the present application with reference to the accompanying drawings.

[0029] figure 1 A schematic flow chart of a near real-time assessment method for wind damage risk of greening trees in urban areas provided by the embodiment of the present application, as shown in figure 1 As shown, the method includes:

[0030] Step 101, acquire building data ...

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Abstract

The invention provides an urban area-oriented greening tree wind damage risk near-real-time evaluation method, which comprises the steps of obtaining building data and tree data of a target area, andestablishing a computational fluid mechanics geometric model of the target area according to the building data and the tree data; establishing a computational fluid mechanics model of each wind direction of the target area according to the fluid mechanics geometric model; generating a situation library of the target area according to the computational fluid mechanics model; obtaining the tree topwind speed of each tree in the target area under the target situation by adopting an interpolation method based on a situation library; and calculating the anti-fracture limit wind speed and the anti-overturning limit wind speed of each tree in the target area, and comparing the tree top wind speed with the anti-fracture limit wind speed and the anti-overturning limit wind speed to generate the wind damage state of each tree in the target area. According to the invention, near-real-time evaluation of the wind damage risk of each greening tree in the target area under the target situation can be realized.

Description

technical field [0001] The present application relates to the technical field of data processing, in particular to a near real-time assessment method for wind damage risk of green trees in urban areas. Background technique [0002] The destruction of urban greening trees caused by wind load will cause direct or indirect economic losses, for example: after a city is hit by a typhoon, the trees in the city are damaged, and the fallen and broken trees on the road have a serious impact on urban traffic. Therefore, it is necessary to strengthen the green trees in urban areas in advance before the arrival of strong winds, so as to reduce the losses caused by wind disasters. [0003] Reasonably and scientifically assessing the damage risk of green trees in urban areas under wind disasters can help relevant personnel quickly identify trees with high damage risk under specific wind disaster scenarios, thereby improving the efficiency of urban tree wind protection work. However, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/06G06Q50/26G06F30/28G06F113/08G06F119/14
CPCG06Q10/0635G06Q50/26G06F30/28G06F2113/08G06F2119/14Y02A90/10
Inventor 陆新征顾栋炼田源赵鹏举
Owner TSINGHUA UNIV
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