Urban inland inundation model construction method based on CAD engineering drawing information and computation sheet of pipe network design

Abstract

The invention provides an urban inland inundation model construction method based on CAD engineering drawing information and a computation sheet of pipe network design, and belongs to the crossing field of municipal engineering information technology and geographic information system technology. Existing computation sheet information of rainwater pipe network design is used to realize effective automatic conversion of rainwater pipe network model data to a GIS database, so as to provide convenience for construction of an urban inland inundation model. Fussy hierarchical processing on CAD graphic data according to elements by a conventional pipe network model construction method is greatly simplified, and manual entry workload on attribute data is reduced, and disadvantages of fussy operation, low efficiency, and easy mistakes of conventional manual attribute data entry are prevented. Just the computation sheet of rainwater pipe network design needs simple processing, and working efficiency is greatly improved, so as to ensure GIS quality of pipe network model data, and ensure quality of an urban inland inundation model. The method has maneuverability, and by simple operation in a GIS platform, each step can be completed, and implementation of the method is ensured.

Description

technical field [0001] The invention relates to a method for constructing an urban waterlogging model based on CAD engineering drawing information and a pipe network design calculation table, and belongs to the intersection field of municipal engineering information technology and geographic information system technology. Background technique [0002] The drainage pipe network system is an important urban infrastructure, which is responsible for collecting and transporting urban sewage and the runoff generated by urban rainfall and snowmelt. It has dual functions of protecting the environment and reducing urban disasters. It is called the "lifeline" and "bloodline" of the city , and its role in urban planning and construction cannot be ignored. With the acceleration of domestic urbanization, the construction of urban drainage pipe network has experienced explosive growth, the scale of the pipe network has been expanding day by day, and the data of the pipe network has been c...

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Problems solved by technology

[0006] The present invention is mainly to solve the current method of constructing an urban waterlogging model based on the traditional method. When constructing a pipe network model, the hierarchical processing of CAD engineering drawing data is cumbersome, and the workload of manually entering attribute data one by one is large, the work efficiency is low, errors are prone to occur, and the quality of the model is low. A method for constructing urban waterlogging models based on CAD engineering drawing information and pipe network design calculation tables is proposed

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