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Tunnel lining thickness detection device

A technology of thickness detection and lining, applied in the direction of measuring devices, optical devices, instruments, etc., can solve the problems of insufficient accuracy of capacitance testing instruments, inconvenient operation and use, and complicated testing equipment, and achieve strong rigidity, easy maintenance and replacement, and shrinkage volume effect

Pending Publication Date: 2022-05-13
HUNAN ZHILI ENG SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The common one is to use cut-block lining, or prestressed high-pressure grouted plain concrete lining. During the construction of the tunnel, it is often necessary to test the lining thickness of the tunnel. The existing testing equipment is relatively complicated and not easy to operate. Simple The accuracy of the capacitance testing instrument is not enough, and it is easy to cause inaccurate construction data after the test; the patent application number CN201621276012.8 discloses a portable tunnel lining testing device, which can test the thickness, but it uses radar testing. still unavailable

Method used

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  • Tunnel lining thickness detection device
  • Tunnel lining thickness detection device
  • Tunnel lining thickness detection device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Such as Figure 1~4 As shown, a tunnel lining thickness detection device includes a vehicle frame 2 with traveling wheels 1, a sliding seat 3 is fixed on the vehicle frame 2, and a lifting shaft 4 is slid inside the sliding seat 3, and the top end of the lifting shaft 4 is fixed There is a support base 5, and the support base 5 is connected with a punching and detection integrated block through a rotating mechanism; the punching and detection integrated block includes a chute plate 6 that is rotatably connected with the support base 5, and a chute plate 6 is fixed on the upper end of the chute plate 6. The frame 7 is provided with several slide bars 8 horizontally in the frame 7, and a center disc 9 is slidably connected to the slide bar 8, and a shaft coupling 10 is fixed in the center disc 9, and a fixed plate 11 is connected to one side of the center disc 9. A drilling motor 12 is fixed on the fixed plate 11, and the rotating shaft of the drilling motor 12 is connect...

Embodiment 2

[0039] Such as Figure 5 with Image 6 As shown, the difference between Embodiment 2 and Embodiment 1 is that a slide rail 35 is rotatably connected to the vehicle frame 2 of the detection device, and a slide block 38 is slidably provided on the slide rail 35, and a slide block 38 is provided below the slide block 38. Sliding motor 36 is fixed, and sliding gear 37 is fixed on the rotating shaft of sliding motor 36, and sliding gear 37 is engaged with the longitudinal rack on the slide rail 35; An acoustic wave detector 40 is slidably connected to the upper part; a torque sensor is also arranged on the auger rod 13 .

[0040] The course of work of embodiment 2:

[0041] First slide rail 35 is raised to vertical shape, then starts acoustic wave detector 40, and acoustic wave detector 40 carries out 360 ° all-round scanning tunnel inner wall on universal ball 39, detects whether there is the place of hollow drum, after finding, Drill holes and measure thickness according to th...

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Abstract

A tunnel lining thickness detection device comprises a frame with walking wheels, a sliding seat is fixed on the frame, a lifting shaft is arranged in the sliding seat, a supporting seat is fixed at the top end of the sliding seat, and the supporting seat is rotatably connected with a punching and detection integrated block through a rotating mechanism; the integrated block comprises a chute plate, a frame is fixed to the upper end of the chute plate, a plurality of sliding rods are horizontally arranged in the frame, a center disc is connected to the sliding rods in a sliding mode, a coupler and a fixing plate are fixed in the center disc, a drilling motor is fixed to the fixing plate, the motor is connected with a spiral drill rod through the coupler, and a locking sleeve is arranged at the tail of the spiral drill rod. A drill bushing frame is arranged at one end of the frame, a drill bushing is fixed in the drill bushing frame, and a laser transceiver is arranged at the other end of the frame. The tunnel lining detection work in various narrow environments is achieved by reducing the size, manual detection is replaced, linkage progressive drilling rigidity is higher, replacement of a drill bit and a drill sleeve is facilitated, laser reflection measurement is adopted, and obtained measurement data are more accurate.

Description

technical field [0001] The invention belongs to the field of tunnel engineering detection devices, in particular to a tunnel lining thickness detection device. Background technique [0002] In the technical field of tunnel lining thickness detection, lining refers to a permanent support structure built with reinforced concrete and other materials along the periphery of the tunnel body in order to prevent deformation or collapse of the surrounding rock. The common one is to use cut-block lining, or prestressed high-pressure grouted plain concrete lining. During the construction of the tunnel, it is often necessary to test the lining thickness of the tunnel. The existing testing equipment is relatively complicated and not easy to operate. Simple The accuracy of the capacitance testing instrument is not enough, and it is easy to cause inaccurate construction data after the test; the patent application number CN201621276012.8 discloses a portable tunnel lining testing device, wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B11/06
CPCG01B11/06
Inventor 张家松侯俊敏王利民李倩马浩原胡涛
Owner HUNAN ZHILI ENG SCI & TECH
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