Method for monitoring vibration and strain of key position of cutter head system of full-section rock tunneling machine

Abstract

The invention provides a method for monitoring vibration and strain of a key position of a cutter head system of a full-section rock tunneling machine, and belongs to the technical field of real-timemonitoring of underground construction of the full-section rock tunneling machine. When the TBM cutter head system is used for arranging measuring points at key positions, the vibration and deformation of the TBM cutter head system can be monitored in real time due to the fact that the measuring points are difficult to arrange due to severe external environment and internal complex structures at certain positions, such as internal rib plates, middle panels and the like, therefore, the vibration and strain states in the running process can be monitored through the wireless sensors and the strain gauges arranged at some positions of the TBM cutter head system, simultaneously the vibration and strain data are received and transmitted based on the wireless network protocol, and the reasonableprediction of vibration and strain at other positions can be achieved on the basis of the measured data through the proposed spatial projection prediction model.

Description

technical field [0001] The invention relates to a vibration and strain monitoring method for a key part of a cutter head system of a full-section rock boring machine, and belongs to the technical field of real-time monitoring of underground construction of a full-section rock boring machine. Background technique [0002] Full-face tunneling equipment (abbreviated as TBM), a large-scale underground construction equipment integrating machinery, electricity, and hydraulics, is widely used in underground engineering construction such as water conservancy and transportation, and its application range is wide. Due to the complex and changeable excavation environment of the TBM, the harsh working environment, and the multi-point impact load generated when the hob breaks the rock, this will cause the TBM to generate relatively strong vibrations. In addition, the cutterhead system is located at the front of the TBM and is responsible for the main excavation work. This will directly l...

AI Technical Summary

Problems solved by technology

[0004] At present, there are relatively few researches on vibration and strain monitoring schemes at key positions of the TBM cutterhead system at home and abroad.

And because the working environment of the cutterhead system is complex and changeable, it is also troublesome to arrange the measuring points

Although some scholars have done some research, they still use any safe location for measurement, and have not proposed a reasonable prediction plan for locations where it is difficult to arrange measurement points, so it has certain limitations, one-sidedness, and large errors.

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