Composite stratum recognition system for shield tunneling machine, shield tunneling machine and method

A technology of composite formation and identification system, which is applied in the fields of earthwork drilling, instruments, mining equipment, etc., can solve the problems of insufficiency, narrow operation space of shield machine, and mechanical equipment occupying the main space, etc., and achieves convenient adjustment and high identification accuracy. , easy to optimize the effect

Active Publication Date: 2021-12-28
SHANDONG UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the inventors found that in the construction of the shield, it is difficult to accurately predict the strata ahead.
The working space in the shield machine is narrow, and a large number of mechanical equipment occupies the main space, which does not meet the requirements of conventional advanced geological forecasting operations

Method used

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  • Composite stratum recognition system for shield tunneling machine, shield tunneling machine and method
  • Composite stratum recognition system for shield tunneling machine, shield tunneling machine and method
  • Composite stratum recognition system for shield tunneling machine, shield tunneling machine and method

Examples

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Effect test

Embodiment 1

[0037] This embodiment discloses a complex stratum identification system for a shield machine, including a vibration monitoring device 1, a wireless signal receiving device 2, a brush slip ring and a monitoring terminal.

[0038] The vibration monitoring device is used to be installed on the cutter head of the shield machine to monitor the vibration information of the cutter head in real time.

[0039] In this example, if figure 1 As shown, the vibration monitoring device includes a housing 1-1. Preferably, the housing is made of high-strength non-metallic materials, and a signal acquisition system is sealed and installed inside the housing.

[0040] The signal acquisition system includes a vibration sensor 1-2, the vibration sensor can collect the vibration information of the cutter head, and realizes the monitoring of the cutter head vibration information in the shield construction process, and the vibration sensor is connected with the controller 1-3, which can The collect...

Embodiment 2

[0051] This embodiment discloses a shield machine, such as Figure 3-Figure 4 As shown, there are parts such as a cutter head 11, a hob 12, a scraper 13, a soil bin 3, a soil bin partition 10, a shield shell 4, and a screw excavator. The above-mentioned parts can be used in the prior art, and will not be described in detail here. , the shield machine complex stratum identification system described in Embodiment 1 is installed on the shield machine, specifically, the vibration monitoring device has a plurality of vibration monitoring devices installed near the cutter head hob or scraper of the shield machine On the web, multiple vibration monitoring devices have different distances from the center of the cutter head.

[0052] The arrangement form of the vibration monitoring device is determined according to the diameter and type of the cutterhead, and 3-6 circles are determined on the cutterhead as the position for arranging the vibration monitoring device. According to the ope...

Embodiment 3

[0059] This embodiment discloses a method for a shield machine to identify composite formations, such as Figure 5 shown, including the following steps:

[0060] Step 1: Process the steady vibration signal of the cutter head when the shield machine is idling and the non-stationary vibration signal of the cutter head generated during the cutting of soil and rock by the shield machine, including digital filter processing and signal waveform spectrum analysis. Through time-domain filtering and frequency-domain filtering processing, the effective wave extraction of shield cutter head vibration signal, the screening of interference wave and the acquisition of frequency characteristic distribution of vibration signal waveform are realized, and the time history of vibration frequency, vibration acceleration and vibration velocity is constructed. curve.

[0061] The vibration sensor obtains the time-history curve of vibration frequency, vibration acceleration and vibration speed, tha...

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Abstract

The invention relates to a composite stratum recognition system for a shield tunneling machine, the shield tunneling machine and a method. The composite stratum recognition system comprises a vibration monitoring device, a wireless signal receiving device, an electric brush slip ring and a monitoring terminal, and the vibration monitoring device is installed on a radial plate of a cutter head of the shield tunneling machine and can monitor the vibration information of the cutter head; the wireless signal receiving device is used for being installed on the slag inlet side of a spiral unearthing device of the shield tunneling machine, and the wireless signal receiving device is in wireless connection with the vibration monitoring device and can receive vibration information obtained through monitoring of the vibration monitoring device; the electric brush slip ring is used for being arranged at the slag discharging side position of the spiral unearthing device of the shield tunneling machine, the electric brush slip ring is fixed to one end of a first cable, the other end of the first cable is connected with the wireless signal receiving device, and a signal line can be fixed to a spiral shaft of the spiral unearthing device; and the monitoring terminal is connected with an electric brush through a second cable, and the electric brush is in contact with the electric brush slip ring. By adopting the composite stratum recognition system, advanced geological forecast in the shield tunneling process is realized.

Description

technical field [0001] The invention relates to the technical field of shield tunneling, in particular to a complex stratum identification system for a shield tunneling machine, a shield tunneling machine and a method. Background technique [0002] The statements herein merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] As the main construction method in the construction of highway tunnels, railway tunnels, subway tunnels and other transportation projects, shield method construction has the advantages of low construction labor intensity, high degree of mechanization, and fast excavation speed. And the construction process does not affect ground transportation and facilities, does not affect underground pipelines and other facilities, does not affect shipping, and is not affected by seasonal climate conditions. It has strong advantages in technology and economy. [0004] However, the inventors have di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21D9/00E21D9/087E21D9/12G01H17/00
CPCE21D9/003E21D9/087E21D9/124G01H17/00
Inventor 王旌房忠栋杨为民门燕青李利平巴兴之陈迪杨韩义哲
Owner SHANDONG UNIV
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