Method for simulating road flood

A simulation method and road technology, applied in the field of water supply and drainage, can solve the problems of slow urban flood calculation and achieve the effect of improving modeling efficiency

Inactive Publication Date: 2016-09-21
CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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Problems solved by technology

[0003] The purpose of the present invention is to provide a method for simulating road floods, aiming to solve the problem of slow calculation of urban floods

Method used

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  • Method for simulating road flood
  • Method for simulating road flood
  • Method for simulating road flood

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Embodiment Construction

[0027] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0028] The invention provides a method for simulating road floods, such as figure 1 shown, including the following steps:

[0029] S1. Set the road as a special-type passage. The special-type passage is given elevation and length and width dimensions, which are calculated simultaneously with other passages. The water-blocking buildings on both sides of the special-type passage are set as dikes; the special-type passage There are two special features of the channel: 1. In addition to the length and channel top elevation attributes common to ordinary channels, the road surface elevation, curb elevat...

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Abstract

The invention provides a method for simulating road flood. The method comprises the steps: setting a road as a special-type passage, giving a height, a length and a width to the special-type passage, simultaneously calculating the special-type passage and other passages, and setting water-blocking buildings at two sides of the special-type passage as dikes; adopting nodes at two sides of the special-type passage as a calculation cycling variable, adopting N passages connected with the nodes as a calculation road number, adopting the nodes and the N passages to form a calculation unit, and taking a half length of each passage in the calculation unit; calculating the flow rate at two sides of the passage by utilizing a water level in the calculation unit and a grid water level, wherein two sides of each passage are respectively provided with a flow rate, and each passage is provided with two flow rates in total; calculating a flow rate between two adjacent passages, namely, the flow rate of water flow along a street, N flow rates in total; and obtaining the water level in the calculation unit by virtue of the obtained 3N flow rates. By adopting the method, a street-along flood phenomenon of a subgrid dimension is effectively simulated, and the speed bottleneck in the urban flood calculation is broken through.

Description

technical field [0001] The invention belongs to the technical field of water supply and drainage, in particular to a method for simulating road floods. Background technique [0002] Modern cities are divided into blocks by criss-crossing streets. Due to the increased density of buildings in the blocks, the development of road traffic has brought convenience to people's travel, but the streets have become relatively low-lying places that are prone to waterlogging, which leads to the concentration of rainfall. Rapid confluence, and even the phenomenon of flooding along the street. In recent years, the problem of urban waterlogging has been very serious, which not only brings great challenges to the drainage system, but also causes huge losses to people's lives and properties. Contents of the invention [0003] The purpose of the present invention is to provide a method for simulating road floods, aiming at solving the problem of slow calculation of urban floods. [0004] T...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/367Y02A10/40
Inventor 李娜王静高建标张念强田庆奇郑敬伟杜晓鹤徐卫红姜付仁韩松王杉俞茜
Owner CHINA INST OF WATER RESOURCES & HYDROPOWER RES
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