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Urban rainwater pipeline design method

A design method, rainwater technology, applied in computing, special data processing applications, instruments, etc., can solve problems such as time-consuming and labor-intensive, large statistical data, and heavy computing workload

Inactive Publication Date: 2006-06-21
SHENYANG JIANZHU UNIVERSITY
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Problems solved by technology

As the core of rainstorm intensity prediction is the urban rainstorm intensity formula, the traditional establishment of the urban rainstorm intensity formula is generally based on the local meteorological station (station) self-calculated rainfall data, using statistical calculation methods to determine, there are time-consuming, laborious, poor accuracy, and many statistical data and the disadvantage of large computational workload
[0004] In order to provide an advanced and reliable method for quickly and accurately establishing the urban rainstorm intensity formula, in recent years, many people have proposed the general process of using the surface least squares method to solve the parameter optimization in the derivation of the urban rainstorm formula, but because the surface least squares method is derived The basic surface of is the surface of the binary space represented by the return period P and the rainfall duration t, so this method can only calculate the total formula of the rainstorm intensity formula

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Embodiment Construction

[0051] Such as figure 1As shown, the design method of this kind of urban rainwater pipeline includes the following steps: 1. Using a computer that can support Visual Basic 6.0, input the raw data of urban rainfall into the computer manually in the form of database or text, and Stored in the hard disk, the size of the remaining space of the hard disk is determined according to the number of years of the original rainfall data, generally not less than 20M; 2. Call the original rainfall data in the hard disk to the RAM of the computer memory, apply the data processing function of the computer itself, and process it in the central Data sorting is carried out in the processor CPU. Due to the need for computing speed, in principle, a Pentium III or higher processor is required; 3. Perform frequency analysis on the data after preliminary processing to obtain an i-t-P table, which is transmitted to the computer terminal display, and The i-t-P table is stored in the hard disk for use; ...

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Abstract

The invention discloses a design method of urban rainfall pipe, which comprises the following steps: 1. inputting the urban rainfall primitive data in the computer at the database or test pattern; 2. calling the primitive rainfall data from hard disk to CPU to finish the data; 3. proceeding frequency analysis of disposed data to obtain the i-t-P list; 4. calculating the i-t-P list through calling the 'confining stable convergence accelerating genetic algorithm program' by computer; obtaining the urban storm strength formula; 5. calculating the urban rainfall pipe diameter according to the storm strength formula. The invention improves the formula counting speed and calculation precision and avoids artificial error to reduce the formula error, which is an important supplement for present urban storm strength formula.

Description

technical field [0001] The present invention relates to a design method of urban rainwater pipelines, in particular to a method for calculating the important design parameters in the pipe diameter design of urban rainwater pipelines using the surface search method program - the urban rainstorm intensity formula, which is a method for urban rainstorm intensity The improvement of the traditional calculation method of the formula belongs to the field of municipal drainage and computer application technology, and can be widely used in the calculation of the urban rainstorm intensity formula and the diameter design of urban rainwater pipelines in various regions. Background technique [0002] The trend of the current urban drainage system is the diversion system. That is, sewage and rainwater are collected and transported by sewage pipes and rainwater pipes respectively, sewage enters urban sewage treatment plants, and rainwater is directly discharged into water bodies. Therefor...

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Application Information

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IPC IPC(8): G06F17/50
Inventor 傅金祥林齐
Owner SHENYANG JIANZHU UNIVERSITY