Automatic Monitoring System and Method for Circumferential Deformation of Shield Tunnel
A deformation monitoring and shield tunneling technology, which is used in earth-moving drilling, mining equipment, mining devices, etc., can solve the problems of inability to monitor the deformation of the outer part of the annular joint of the segment in contact with the soil, and the monitoring method is limited. , to achieve high efficiency and accurate monitoring results
Active Publication Date: 2019-06-28
SHANGHAI CONSTRUCTION GROUP
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Problems solved by technology
[0004] Aiming at the limitation of the existing monitoring method for the deformation of the circular seam joint of the shield tunnel segment, it is impossible to monitor the deformation of the outer side of the circular seam joint of the segment and the contact part of the soil
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[0029] The automatic monitoring system and method for circular seam deformation of a shield tunnel proposed by the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. Advantages and features of the present invention will be apparent from the following description and claims. It should be noted that all the drawings are in a very simplified form and use imprecise scales, and are only used to facilitate and clearly assist the purpose of illustrating the embodiments of the present invention. For the convenience of description, the "up", "down", "left" and "right" described below are consistent with the directions of up, down, left and right in the drawings, but this should not be a limitation of the technical solution of the present invention.
[0030] to combine figure 1 and figure 2 Illustrate the automatic monitoring system of shield tunnel circular seam deformation of the present invention, as ...
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An automatic monitoring system and a method for deformation of shield tunnel annular seams are provided and aim at solving the problems in the existing monitoring methods for deformation of joints ofshield tunnel annular segment seams that great limitation exists, and the deformation of the contact part between the outer side of the joints of the segment seams and the soil can not be monitored. The automatic monitoring system is characterized in that the automatic monitoring system comprises annular seam deformation monitoring devices, a modulation and demodulation instrument and a computer;an annular seam deformation monitoring device is mounted on the inner side of an annual seam joint of every two adjacent segments; the annual seam deformation monitoring device, the modulation and demodulation instrument and the computer are in signal connection. The monitoring method includes the steps of directly measuring the relative horizontal displacement wi of the segment annual seam joint,the inside staggered distance of the annual seam joint vi and the relative angle Theta (theta) of two segments by means of the annual seam deformation monitoring device, then indirectly calculating the inside opening distance zi of the segment annual seam joint, the outside staggered distance vo of the segment annual seam joint and the outside opening distance zo, and at the same time conductingthe high-precision automatic real-time monitoring of inside and outside opening and staggered deformations of the shield tunnel annular seams joints.
Description
technical field [0001] The invention relates to the technical field of tunnel deformation monitoring, in particular to an automatic monitoring system and method for circular seam deformation of a shield tunnel. Background technique [0002] In the shield tunnel monitoring, the routinely monitored variables include the lateral displacement, vertical displacement and horizontal convergence of the tunnel. The monitoring of these variables can generally reflect the deformation form of the overall structure of the shield tunnel to a certain extent. However, as a shield tunnel is a three-dimensional structure spliced by multiple segment bolts, it is also extremely important to monitor the deformation at the annular joints of two adjacent segments, especially when uneven settlement occurs in the longitudinal direction of the shield tunnel When the segment ring seam joint is used, certain deformation (including opening and staggering) will occur at the joint of the segment ring se...
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IPC IPC(8): E21F17/18
CPCE21F17/18
Inventor 孙廉威吴小建沈雯沈蓉程子聪
Owner SHANGHAI CONSTRUCTION GROUP