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Guide system applied to double-shield tunneling machine and positioning method

A technology of a tunnel boring machine and a guiding system, which is applied to the field of guidance during the construction of a tunnel boring machine, can solve the problems of increasing data errors, increasing time costs, time-consuming and the like, so as to increase the measurement distance, improve the construction efficiency, and reduce the frequency of station changing. Effect

Active Publication Date: 2015-12-02
中船重工(青岛)轨道交通装备有限公司 +2
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  • Claims
  • Application Information

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Problems solved by technology

In this case, on the one hand, frequent station changes will consume time, reduce the efficiency of tunnel construction, and increase time costs. At the same time, frequent station changes and re-calibration of the tunneling axis and design axis data will increase data errors and affect the construction of the tunnel. quality

Method used

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  • Guide system applied to double-shield tunneling machine and positioning method
  • Guide system applied to double-shield tunneling machine and positioning method
  • Guide system applied to double-shield tunneling machine and positioning method

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Embodiment Construction

[0023] see Figure 2 to Figure 5 , the guide system of the present invention includes the rearview prism 12 installed on the segment wall 9, the total station 11 installed on the segment wall 9, the industrial computer 10 installed with the guide system installed in the driver's cab, installed on the The CCD measurement camera 5 on the support shield 6, the LED standard feature point 3 installed on the front shield 2, and the laser target 7 installed on the tail shield 8, the CCD measurement camera 5 and the total station 11 communicate with the industry through data lines The computer 10 is connected.

[0024] The present invention utilizes the CCD measuring camera 5 to realize real-time high-precision positioning measurement at a short distance. The principle is to obtain images of the surrounding scenery through the camera, use some natural or artificial features in the scenery, and obtain the surrounding environment model through image processing methods to achieve precis...

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Abstract

The invention discloses a guide system applied to a double-shield tunneling machine and a positioning method. The guide system is characterized by comprising a rear-view prism mounted on a duct piece wall, a total station mounted on the duct piece wall, an industrial computer mounted in a cab and provided with a guide system, a CCD measurement camera mounted on a support shield, LED standard characteristic points mounted on a front shield, and a laser target mounted on a tail shield. During the tunnel piercing construction, the CCD measurement camera extracts the variation of the light spot positions of the LED standard characteristic points, and compares the positions with the original positions calibrated in the CCD measurement camera, and thus the accurate position relation between the support shield and the front shield can be obtained. The guide system has the advantages that the laser beams sent by the total station directly irradiate the laser target mounted on the tail shield, and a special laser measurement window channel does not need to be reserved between the support shield and the tail shield, so that the measurement distance of the guide system is greatly prolonged, the station change frequency is reduced, and the construction efficiency is improved.

Description

technical field [0001] The invention relates to a guiding system applied to a double-shield tunnel boring machine (hereinafter referred to as "TBM") and a measurement method using the system, which is mainly used for guiding during tunnel boring machine construction. Background technique [0002] With the vigorous development of the rail transit industry, double-shield TBMs have been widely used in the construction of hard rock geological tunnels. At present, the guidance system used by double-shield TBM at home and abroad is to directly install the measurement target on the front shield of the TBM, and carry out the tunneling guidance and attitude correction of the TBM through the measurement channel. However, due to the vibration of the front shield body of the double-shield TBM during excavation and the influence of the flexible connection between the front shield and the support shield, there is a large deviation in the guidance accuracy of the TBM in the actual excavati...

Claims

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Application Information

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IPC IPC(8): G01C21/04E21D9/08
CPCE21D9/08G01C21/04
Inventor 王斌邾继贵王小强朱厚军沈从浩田斌张晓日
Owner 中船重工(青岛)轨道交通装备有限公司
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