Municipal drainage pipe network diagnostic assessment method giving consideration to key node

Abstract

The invention relates to a municipal drainage pipe network diagnostic assessment method giving consideration to a key node. The method includes the following steps that (1) the key node of a municipal drainage pipe network is obtained, a water level monitor and a flow monitor are additionally arranged at the position of the key node, actual running water level and flow data of the key node are obtained, and on-site pipe data at the position of the key node are obtained through CCTV measurement; (2) in cooperation with the actual running water level and flow data, topological data of the drainage pipe network, the on-site pipe data, boundary water level data, GIS data, ground elevation data and other data of the key node, a municipal drainage pipe network hydraulic model giving consideration to the key node is built; and (3) calibration is carried out on the municipal drainage pipe network hydraulic model, the municipal drainage pipe network hydraulic model obtained after calibration is adopted for simulating the running state of an actual municipal drainage pipe network system, and the running state of the system is assessed. Compared with the prior art, the municipal drainage pipe network diagnostic assessment method has the beneficial effects of giving consideration to the key node, being accurate in modeling, capable of achieving combined assessment, real and effective, improving efficiency and the like.

Description

technical field [0001] The invention relates to the technical field of municipal engineering information, in particular to a method for diagnosing and evaluating urban drainage pipe networks considering key nodes. Background technique [0002] The urban underground drainage pipe network is intricate, coupled with various factors such as material aging, serious corrosion, urban waterlogging, road subsidence, pipe network rupture, etc. How to timely and scientifically diagnose the health status of the existing drainage pipe network facilities needs to be solved urgently. At present, domestic and foreign underground pipeline network diagnosis methods for different specialties emerge in an endless stream, including pipeline CCTV endoscopic monitoring technology, sonar technology, corrosion detection technology of steel pipeline, and functional and structural evaluation of specific pipelines according to the detection results. The above-mentioned diagnosis and evaluation method i...

AI Technical Summary

Problems solved by technology

The above-mentioned diagnosis and evaluation method is an internal special inspection after a certain problematic pipeline is determined. There is a clear object of investigation, but the drainage pipe network is a complex interconnected system, with branch pipes and main pipes, collection areas and system main pipes, upstream and The relationship between the downstream, the pipeline network system and the terminal pumping station is relatively complicated. How to judge the key problems and weak pipe positions in the operation of the system is very important. The usual method is to carry out large-scale detailed inspection and investigation of the system, which consumes a lot of manpower and financial resources. And only consider the current research pipe section, while ignoring the influence of other connected pipelines on the water flow, so it cannot accurately reflect the real operating state of the system; or make a rough judgment based on the basic situation and operation of the facility, but the result is uncertain

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