Power cable duct bank settlement monitoring system

Abstract

The invention provides a power cable duct bank settlement monitoring system which comprises a plurality of optical fiber settlement boxes arranged at the bottom of a power duct bank at intervals and data processing equipment, each optical fiber settlement box comprises a water tank, a floating block movably arranged in the water tank, a U-shaped floating plate movably arranged at the top of the water tank and a stress diaphragm fixedly arranged at the bottom of the water tank, the bottom of the U-shaped floating plate is fixedly connected with the floating block, and the top of the U-shaped floating plate abuts against the bottom of the electric power calandria; a bottom connecting rod of the floating block is connected with the top of the stress diaphragm, the bottom of the stress diaphragm is connected with data processing equipment through an optical fiber, and at least one fiber bragg grating stress sensor is arranged on the optical fiber. The power cable duct bank settlement monitoring system can perform continuous and distributed monitoring on settlement of the power duct bank, ensures settlement data analysis and statistics of the power duct bank, and is simple in installation, accurate in measurement and high in automation degree.

Description

technical field [0001] The invention relates to the technical field of power channel pipeline monitoring, in particular to a power cable pipe settlement monitoring system. Background technique [0002] As an important part of the urban underground space, the power channel is laid with 10kV and above high-voltage cable lines. It usually undertakes important power transmission tasks in the urban network. Generally, during installation and construction, the geology itself is uneven or the strength is unstable. If the settlement of the power pipe occurs, if the settlement is too large, there will be a safety hazard to the installation of the power pipe. On the one hand, the general subsidence of 2cm is the alarm value, which is relatively difficult to find; on the other hand, the occurrence of subsidence requires human observation and inspection at all times, which is a waste of manpower and material resources. Therefore, it is necessary to provide a system that can remotely mo...

AI Technical Summary

Problems solved by technology

[0002] As an important part of the urban underground space, the power channel is laid with 10kV and above high-voltage cable lines. It usually undertakes important power transmission tasks in the urban network. Generally, during installation and construction, the geology itself is uneven or the strength is unstable. If the settlement of the power pipe occurs, if the settlement is too large, there will be a safety hazard to the installation of the power pipe

On the one hand, the general subsidence of 2cm is the alarm value, which is relatively difficult to detect; on the other hand, the occurrence of subsidence requires human observation and inspection at all times, which is a waste of manpower and material resources

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