The Research And Development Of Urban Drainage Pipe Network System

In the area of drainage pipeline design of municipal engineering, the water hydraulic calculation is an indispensable part, it decides the tube path, slope and water velocity of each pipeline, it also influences the pipeline net construction price.But current computer program of water hydraulic calculation is just a kind of work to replace the calculation and checking form by hand. This work is very onerous, because it only can calculate one pipeline every time. It will be excrescent tedious in carrying on the bigger size pipeline net calculation.So it is very essential to establish a network of hydraulic calculation of the drain system to solve these problems. This paper discussed the municipal sewer system for research and development in a number of problems.The innovational points of this research are:(1)Using graph theory, the research takes drainage system as a network. It breaks the limitation of the calculation for the separate pipeline in the current hydraulic calculation.⑵AutoCAD graphics and the database link in the hydraulic calculations, reading graphics data directly into database;⑶Using Breadth first search algorithm to search pipeline path in drainage network;⑷Making GIS thought into drainage network calculation to complete management, analysis and inquiries of drainage pipe network .After all, the results of this research have a important practical significance. The development of drainage network recognition system which can simplify the hydraulic calculation of the drainage network has played a breakthrough role. Meanwhile, the methods of drainage network management, analysis, inquiries system will have important applications significance and value.