A road subsidence early warning method and system based on drainage pipe network flow monitoring

Abstract

The present invention provides a road subsidence early warning method and system based on drainage pipe network flow monitoring, comprising the following steps: setting flow flow monitors at the upstream and downstream ports of each section of drainage pipes, and collecting flow flow monitors every t time According to the data, the flow and flow direction sequence of the corresponding measurement point can be obtained; according to the statistical analysis, the time Δt required for the water flow in each section of the drainage pipe to flow from the upstream end to the downstream end; determine whether the flow change between the downstream end and the upstream end of each section of the drainage pipe meets There is a certain relationship, when a section of drainage pipe is not satisfied, there will be hollowing under the road near the section of drainage pipe. The invention utilizes the monitoring of the change of flow direction of the drainage pipe network to realize the early warning of urban road subsidence, which can realize long-term uninterrupted remote automatic monitoring and early warning, and has the advantages of wide data collection, high accuracy, uninterrupted monitoring and early warning.

Description

technical field [0001] The invention relates to the field of early warning of urban roads or the field of flow monitoring of drainage pipes, in particular to a method and system for early warning of road collapse based on flow monitoring of drainage pipe networks. Background technique [0002] In recent years, urban road subsidence accidents have occurred from time to time. The main reason is the cavitation caused by the leakage of underground pipelines and the development of surrounding underground space. , the cavity changes from small to large, eventually causing a collapse accident. For this reason, it is very necessary to find the void as early as possible, give a timely warning, and take effective disposal measures. [0003] The existing subsidence early warning and monitoring technologies mainly include geological radar method, high-density electrical method, pipeline endoscopic photography detection method, OFDR optical fiber sensing method, etc. Geological radar m...

AI Technical Summary

Problems solved by technology

Geological radar method, high-density electrical method, and pipeline endoscopic photography detection method can realize rapid detection of key roads, but the cost is high, and long-term uninterrupted monitoring cannot be achieved; OFDR optical fiber sensing method requires pre-laying optical fibers, which is suitable for new roads

Therefore, none of the existing technical methods can realize the long-term uninterrupted monitoring of the early warning of road subsidence.

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