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Automatic measurement method for tunnel face excavation deformation

A measurement method and tunnel face technology, applied in tunnels, earthwork drilling, mining equipment, etc., can solve problems such as instability, inaccurate measurement, and easy damage to targets, and achieve the effect of simple measurement and safe precision

Active Publication Date: 2021-11-23
TONGJI UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004]The target installed by the above method is easy to be damaged and unstable, the economic cost of the point cloud measurement method is too high, and it is easily disturbed during blasting construction, resulting in inaccurate measurement , not suitable for measuring just after excavation of the tunnel face

Method used

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  • Automatic measurement method for tunnel face excavation deformation

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Embodiment Construction

[0032] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0033] figure 1 A schematic structural diagram of an embodiment of the present invention is shown. like figure 1 As shown, the present invention provides an automatic measurement method for tunnel face excavation deformation, including:

[0034] The Cyclops lamp target 1 is installed on the steel arch frame in stage 8 of excavation stage 8 at the face of the tunnel just excavated, and three Cyclops lamp targets 1 are placed on a steel arch frame, which are respectively installed on the vault and both sides of the steel arch frame Arch your waist. Cyclops 1 and the steel arch are fixed with strong magnets, or fixed with bolts. The Cyclops lamp target 1 automatically emits light to provide lighting for the tunnel. It is powered by a 12V rechargeable battery. After being fully charged, it will continue to supply power for at least 3 months at a time. ...

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Abstract

The invention discloses an automatic measurement method for tunnel face excavation deformation. The automatic measurement method comprises the following steps that a plurality of sets of single-eye lamp targets are arranged on a steel arch frame of an upper step section of tunnel face excavation, a camera and an industrial personal computer are arranged on a lower step and an inverted arch section of tunnel face excavation, and a wireless transmitting module is arranged at a hole of a tunnel. The automatic deformation measuring method comprises the following steps that three lamp targets are installed on a steel arch; pictures shot by the camera are transmitted to the industrial personal computer through an LORA relay module; the industrial personal computer inputs on-site construction parameters and processes pictures to obtain section coordinate signals; a signal conversion module converts the coordinate signal into a wireless data signal and sends the wireless data signal to a cloud server through a wireless transmitting module; the monitoring data is downloaded from the cloud server; the tunnel face continues to be excavated forwards, and the single-eye lamp targets continue to be installed at set intervals; and the previous steps are repeated, and section deformation of the tunnel face in the actual excavation process is remotely monitored in real time. The method has the advantage of accurately measuring the dynamic deformation data of the tunnel surrounding rock.

Description

technical field [0001] The invention belongs to the technical field of tunnel engineering, in particular to an automatic measurement method for excavation deformation of a tunnel face. Background technique [0002] For the excavation and construction safety of tunnel engineering, deformation can most directly reflect the safety state of its surrounding rock. According to the theory of convergence constraints, after the blasting and excavation of the tunnel, the surrounding rock begins to deform, so the earlier the deformation of the excavated section is measured, the faster the deformation dynamic information of the surrounding rock can be obtained. [0003] At present, the measurement methods for the deformation of the tunnel face after excavation are mainly point-to-point measurement and point cloud measurement. The former mainly installs three to five target points on the tunnel contour after the tunnel face is excavated, and then calculates the deformation of the contou...

Claims

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Application Information

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IPC IPC(8): E21D9/00E21D9/14
CPCE21D9/003E21D9/006E21D9/14Y02B20/40
Inventor 谢雄耀周彪徐金峰周应新
Owner TONGJI UNIV