Method for monitoring tunnel face deformation in axial direction of tunnel
A technology of axial deformation and palm surface, which is applied in the direction of measuring devices, instruments, and optical devices, can solve the problems of high professional skills requirements for monitoring personnel, high monitoring costs, cumbersome operations, etc. Easy dismantling and simple handling
Inactive Publication Date: 2017-06-13
SHAOXING UNIVERSITY
View PDF7 Cites 18 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0008] In view of the above existing problems, the present invention provides a method for monitoring the deformation of the tunnel face along the axial direction of the tunnel, so as to overcome the cumbersome operation, high monitoring cost, and It is a problem that requires high professional skills of monitoring personnel, so that it is easier and more convenient to monitor the deformation size and change trend of the tunnel face along the axial direction of the tunnel. The operation is simple, the cost is low, the monitoring results are intuitive and clear, and the monitoring data can accurately reflect the tunnel surface. Deformation of the surface along the tunnel axis
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0035] figure 1 It is a schematic diagram of the principle of monitoring the deformation of the tunnel face along the axial direction of the tunnel provided by Embodiment 1 of the present invention; image 3 It is a schematic diagram of the layout of the reflective sheet provided by Embodiment 1 of the present invention; as shown in the figure, the portable laser rangefinder assembly 101 is fixed on the tunnel surrounding rock 103 behind the tunnel face 102, and after each excavation cycle of the tunnel is completed , install the laser reflective sheet 104 on the palm surface 102 in time, adjust the angle of the laser rangefinder assembly 101 so that it is aligned with the laser reflective sheet 104 on the front palm surface 102 in sequence, and record the laser rangefinder assembly 101 display The measured value, this measured value is used as the initial distance value from the laser reflector 104 to the laser rangefinder assembly 101, then regularly (generally every day) re...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a method for monitoring tunnel face deformation in the axial direction of a tunnel and belongs to the field of tunnel excavation monitoring methods. According to the method for monitoring the tunnel face deformation in the axial direction of the tunnel, reflection pieces are installed on the tunnel excavation tunnel face, the initial distance from each reflection piece to a laser range finder component is measured, and then the real-time distance from each reflection piece to the laser range finder component is measured periodically, wherein the difference of the real-time distance and the initial distance is the tunnel face deformation in the axial direction of the tunnel; according to the tunnel face deformation in the axial direction of the tunnel, the size and variation tendency of the tunnel face deformation in the axial direction of the tunnel can be judged.
Description
technical field [0001] The invention relates to the field of tunnel excavation monitoring methods, in particular to a method for monitoring deformation of a tunnel face along the axial direction of a tunnel. Background technique [0002] At present, China has the largest number of tunnels, the largest construction scale and the fastest growth rate in the world. However, compared with developed countries, my country still has a large gap in tunnel construction quality control and safety management. [0003] The perception rate and control effect of the tunnel deformation will directly affect the construction quality of the tunnel. If it is not handled properly, there will be engineering accidents such as landslides and project failures, causing serious losses. Due to the excavation of the tunnel, the surrounding rock supporting the tunnel body is excavated, and a void appears behind the face of the tunnel, and the stress of the surrounding rock is redistributed, resulting in...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/16
CPCG01B11/16
Inventor 夏才初包方明杜时贵安康张计锋
Owner SHAOXING UNIVERSITY