TBM cutterhead vibration monitoring and evaluating method

An evaluation method and vibration monitoring technology, applied in the direction of measuring devices, measuring ultrasonic/sonic/infrasonic waves, special data processing applications, etc., can solve the problems of lack of vibration monitoring methods and vibration level measurement standards

Active Publication Date: 2021-09-14
DALIAN UNIV OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, vibration monitoring has become an important part of equipment diagnosis technology, and the vibration level has also been evaluated as a parameter for safe operation of equipment. However, there is still a lack of corresponding vibration monitoring methods and vibration level measurement standards for the vibration level of TBM cutter heads.

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  • TBM cutterhead vibration monitoring and evaluating method
  • TBM cutterhead vibration monitoring and evaluating method
  • TBM cutterhead vibration monitoring and evaluating method

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Embodiment Construction

[0028] The specific implementation of the present invention will be described in detail below in combination with the accompanying drawings and technical solutions, and the present invention will be further described.

[0029] like figure 1 Shown is a flow chart of a TBM cutterhead vibration limit analysis method. Including the following steps: a), data preprocessing; b), external excitation research of TBM cutterhead; c), determination of allowable stress of cutterhead under different working conditions; d), cutterhead transient dynamics analysis; e), Dynamic Response Analysis of Cutterhead

[0030] TBM cutterhead vibration limit analysis method, the three-dimensional force of the hob under different compressive strength rock conditions is obtained through the hob-cutter rock breaking simulation, and is corrected by the actual measurement data on the construction site, which is used as the external excitation of the model to perform transient Dynamic analysis, and then meas...

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Abstract

The invention provides a TBM cutterhead vibration monitoring and evaluating method, and belongs to the technical field of TBM vibration testing. By building a remote data acquisition system, remote real-time acquisition of vibration data of aTBM cutterhead is realized. Meanwhile, working condition and geology division is performed according to vibration monitoring data of different construction sections in combination with TBM tunneling parameters, geological reports and the like. Cutterhead hob rock breaking loads under different surrounding rock conditions are studied, and a cutterhead vibration level evaluation method, namely a vibration limit value, under different working conditions is determined through finite element and dynamic simulation. The engineering problems such as damage to a TBM cutterhead caused by overlarge vibration are prevented, and safe and reliable tunneling of construction equipment is ensured.

Description

technical field [0001] The invention belongs to the technical field of TBM vibration testing, and in particular relates to a TBM cutter head vibration monitoring and evaluation method. Background technique [0002] TBM is a high-end tunnel excavation equipment that integrates excavation, slag removal and support, mainly including cutterhead system, support system propulsion system, post-support system, etc. Its working principle is that when the cutter head rotates, the disc-shaped hob is used to break the rock, and the main engine is pushed forward by the supporting propulsion system to undertake the reaction force and reaction torque. The cutter head is the core component of the TBM, and its service life is equal to the life of the TBM. During the excavation process, it will encounter the "three high" surrounding rock environment of high hardness, high temperature, and high quartz content. Due to the characteristics of rock, the cutter head vibrates extremely violently, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01H17/00G06F30/20H04L29/08
CPCG01H17/00G06F30/20H04L67/025H04L67/12G06F2119/14
Inventor 霍军周许陪玉
Owner DALIAN UNIV OF TECH
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