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TBM tunnel carrying type rock slag mineral recognition system and method based on hyperspectral imaging

A technology of hyperspectral imaging and identification system, applied in the field of rock slag mineral identification system mounted on TBM tunnel, can solve the problems of long time consumption, difficult rock slag, complicated construction environment, etc., saving time, manpower and material resources, and convenient operation. , to ensure the effect of accuracy

Active Publication Date: 2021-08-27
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, there are the following deficiencies in the analysis of rock slag in TBM tunnels: the construction environment in the tunnel is complicated, and the rock slag transported out of the TBM conveyor belt can only be accurately analyzed by the existing technology. Observation and analysis of the rock slag shape and size cannot obtain the mineral content information of the rock slag; further research on the rock slag transported on site requires the use of laboratory tests, which takes a long time; the rock slag transported by the TBM conveyor belt contains a lot of dust and cement slurry , it is very difficult to directly observe rock slag

Method used

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  • TBM tunnel carrying type rock slag mineral recognition system and method based on hyperspectral imaging
  • TBM tunnel carrying type rock slag mineral recognition system and method based on hyperspectral imaging
  • TBM tunnel carrying type rock slag mineral recognition system and method based on hyperspectral imaging

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Embodiment 1

[0049] As mentioned in the background art, the existing technology needs to prepare test samples when performing detection, and has relatively strict requirements on the experimental environment, so it is not suitable for tunnel construction scenarios. This embodiment provides a TBM tunnel-mounted rock residue scanning system based on hyperspectral imaging technology, which can well solve the above problems.

[0050] Such as figure 1 , figure 2 As shown, a TBM tunnel-mounted slag scanning system based on hyperspectral imaging technology includes a power supply device, a slag cleaning device, a slag drying device, a mechanical control device, and a hyperspectral imaging device. Among them:

[0051] The power supply device includes a power supply 15 , which is powered by a large battery of a power supply type, and is respectively connected to the rock residue cleaning device, the rock residue drying device 4 , the mechanical control device and the hyperspectral imaging device ...

Embodiment 2

[0088] A TBM tunnel-mounted rock residue scanning system based on hyperspectral imaging technology is provided, which differs from the system in Embodiment 1 in that:

[0089] The mechanical control device includes a multi-degree-of-freedom mechanical arm, and the lower end of the multi-degree-of-freedom mechanical arm is arranged beside the conveyor belt, and the movable end of the multi-degree-of-freedom mechanical arm is connected to a hyperspectral imaging device. The multi-degree-of-freedom manipulator can move vertically and horizontally.

[0090] Of course, in other embodiments, other structures capable of three-axis motion can be selected to replace the mechanical control device. I won't repeat them here.

Embodiment 3

[0092] A hyperspectral imaging-based identification method for rock slag minerals in TBM tunnels, comprising the following steps:

[0093] The slag produced by TBM is cleaned and dried in sequence;

[0094] Use a moisture detection device to detect the surface moisture of rock slag;

[0095] Using hyperspectral imaging technology to collect the spectral information of processed rock slag;

[0096] The rock slag spectral information is preprocessed, the pretreated rock slag spectral information is matched to the lithology, and the mineral content of the rock slag is quantitatively identified.

[0097] The preprocessing process includes: radiation calibration, reflectance spectrum reconstruction and noise elimination;

[0098] The specific process of radiometric calibration includes: performing radiometric calibration on the obtained rock slag hyperspectral data using preset calibration parameters, establishing the relationship between the DN value of the original image and th...

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Abstract

The invention provides a TBM tunnel carrying type rock slag mineral recognition system and method based on hyperspectral imaging. The system comprises a conveying belt, a rock slag cleaning device, a rock slag drying device and a hyperspectral imaging device are sequentially arranged above the conveying belt, the hyperspectral imaging device is connected with a mechanical control device, and the mechanical control device is arranged beside the conveying belt for adjusting the position and the height of the hyperspectral imaging device on the conveying belt; the hyperspectral imaging device is connected with the processor, and the processor is configured to match lithology according to rock slag spectral information collected by the hyperspectral imaging device and perform quantitative identification on the mineral content of the rock slag. According to the method, the mineral content information of the rock slag can be quickly analyzed in real time.

Description

technical field [0001] The invention belongs to the technical field of hyperspectral imaging measurement in tunnels, and in particular relates to a TBM tunnel-mounted slag mineral identification system and method based on hyperspectral imaging. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] Geological disasters such as water and mud inrush, landslides, and large deformations often occur during tunnel construction, resulting in frequent safety accidents, causing casualties and economic losses. The identification of bad geology through geological analysis in traditional tunnels relies on experience, and only qualitative analysis is carried out, which is highly subjective, resulting in large errors in identification results and frequent misjudgments. [0004] During the construction of a TBM tunnel, the staff need to adjust the correspondin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/552G01N21/31G01N33/24G01N21/01G01N1/34
CPCG01N21/55G01N33/246G01N21/31G01N21/01G01N1/34
Inventor 许振浩李天昊许广璐刘福民余腾飞林鹏邵瑞琦
Owner SHANDONG UNIV
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