Multifunctional tunnel intelligent detection device

Abstract

The invention discloses a multifunctional tunnel intelligent detection device which comprises a movable support, a detection instrument moving track arranged close to the inner contour of a tunnel, a detection instrument fixing device, a control system and a traction device. The device has the beneficial effects that the structure is simple, the material consumption is low, the equipment and technology are mature, the influence of detection and construction operation can be reduced by arranging the passage, intelligent and mechanical equipment can be set as appropriate, and the investment cost for manufacturing the device is reduced; an operation platform does not need to be set up repeatedly, detection work of multiple positions of a certain section can be completed at the same time, and different detection items can be completed through laser scanning, geological radar, ultrasonic waves, pressure gauges and other different detection devices. The telescopic arm rod and the replaceable fixing head special for the instrument can be suitable for different detection instruments and equipment and different tunnel sections, operation is convenient and fast, work efficiency is high, and cost can be effectively controlled.

Description

Technical Field

[0001] The invention relates to the technical field of tunnel engineering, and in particular to a multifunctional tunnel intelligent detection device. Background Art

[0002] In the prior art, after the tunnel structure is completed, in order to ensure the quality of lining construction, geological radar, steel bar protective layer detector, rebound tester, ultrasonic and other equipment are often used to detect the tunnel lining and pipe segments, and the defects such as lining cracks and wall cavities are repaired based on the detection results; however, for a long time, tunnel detection, defect repair, and later pipeline support installation have generally been carried out manually. For higher tunnel arch walls, temporary working platforms need to be set up, and the supports are repeatedly moved according to different positions, different detection items and construction work contents. Not only is the detection discontinuous, the detection data is incomplete and not intuitive, but the operation efficiency is low, the time is long, and the construction risk is high. Summary of the invention

[0003] The purpose of the present invention is to provide a multifunctional tunnel intelligent detection device to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a multifunctional tunnel intelligent detection device, comprising a movable bracket, a movable track of a detection instrument arranged close to the inner contour of the tunnel, a detection instrument fixing device, a control system and a traction device.

[0005] Further optimized, the movable bracket consists of a vertical support, a longitudinal connecting support, a transverse support, an oblique support, a support seat, a fixed support arm, a moving device and a power device, wherein the vertical support is arranged in a rectangular shape, a passage is left in the middle, a support seat is arranged at the bottom, and the oblique support is arranged at the transverse armpit corner of the vertical support and the top.

[0006] Further optimized, the moving device of the mobile bracket includes four universal wheels with brakes, and the four universal wheels are arranged in a rectangular shape under the support seats below the vertical supports at the four corners of the mobile bracket. The power device provides power for the mobile bracket and can drive the mobile bracket to move back and forth along the axis of the tunnel.

[0007] Further optimized, the upper lateral support, longitudinal connecting support and horizontal fixed support arm of the movable bracket have sufficient strength, rigidity and stability, and the upper part thereof can also serve as a construction platform.

[0008] For further optimization, the movable bracket can be provided with detachable auxiliary bracket horizontal braces and diagonal braces in the moving direction to prevent the movable bracket from tipping over.

[0009] For further optimization, the movable track of the detection instrument arranged near the inner contour of the tunnel is at a certain distance from the inner contour of the tunnel and is supported and fixed by a fixed support arm. Angle notches can be engraved on the movable track for positioning the detection instrument.

[0010] For further optimization, the movable track of the detection instrument can be set along the entire contour of the tunnel, or can be set only in the arch wall range; when the movable track of the detection instrument is set only in the arch wall range, its bottom should be firmly connected with a fixed support arm to ensure the stability of the track.

[0011] For further optimization, the movable track of the detection instrument should have sufficient strength and rigidity to ensure that the deformation and stability are controllable when the detection instrument is fixed and a certain load is applied.

[0012] For further optimization, the movable track of the detection instrument can select a suitable form, such as a serrated shape, a monorail shape, etc., according to conditions such as the traction device, the automation working principle and the detection instrument fixing device.

[0013] Further optimized, the detection instrument fixing device is composed of a threaded screw, a fixing fixture, a retractable arm and a replaceable instrument-specific fixing head, which is arranged on a movable track of the detection instrument and can move in a circular direction along the track.

[0014] For further optimization, multiple detection instrument fixing devices can be set up simultaneously along the movable track, and multiple detection instruments can be fixed for simultaneous detection; when the detection instrument is not installed at the end of the fixing device, the universal wheel can be replaced to support the inner wall of the tunnel to stabilize the mobile bracket.

[0015] Further optimized, the fixing clamp of the detection instrument fixing device is based on the principle of fixing the detection instrument at a certain position of the movable track of the detection instrument. It is used in combination with a threaded screw and can adopt various forms, such as clip type, retractable type, snap-on type, etc., wherein the threaded screw can be driven to rotate by a motor to adjust the telescopic length, loosen or tighten the clamp.

[0016] Further optimized, the telescopic arm of the detection instrument fixing device is based on the principle of eliminating the distance between the active track of the detection instrument and the inner contour of the tunnel, and applying a certain load when necessary. It can adopt various forms such as unidirectional telescopic, multi-directional rotational telescopic, etc.

[0017] Further optimized, the replaceable instrument-specific fixing head of the detection instrument fixing device is specially designed according to the appearance and connection and fixing method of different detection equipment, which can effectively connect and fix the detection equipment; it can also be directly replaced by detection equipment with acoustic emission, pressure and other sensors.

[0018] Further optimized, the control system includes a display operation panel and a central processing unit, the display operation panel is arranged behind the mobile bracket, and the central processing unit is arranged between the vertical support of the mobile bracket and the movable track of the detection instrument.

[0019] Further optimized, the control system is connected to the power device, laser scanner, high-definition camera, ultrasonic and other detection instruments using electrical signals, and automatic and intelligent control and detection are achieved through a display operation panel.

[0020] As a further optimization, one or more display operation panels can be provided according to the requirements of different detection instruments.

[0021] For further optimization, the central processor can be set to one or more according to the requirements of different detection instruments.

[0022] For further optimization, the laser scanner, high-definition camera, ultrasonic wave and other detection instruments are installed and used according to the needs of the site, and can be removed to reduce costs if not necessary.

[0023] Further optimized, the traction device is arranged on the movable track of the detection instrument, and is mainly used for automatically traction controlling the instrument fixing device to move to a specified position along the movable track.

[0024] Further optimized, the movable track of the detection instrument can be replaced according to the inner contour of the tunnel to enhance the adaptability and practicality of the present invention to different tunnel sections.

[0025] Beneficial Effects

[0026] The multifunctional tunnel intelligent detection device provided by the present invention is a multifunctional device for intelligent detection of tunnel lining and also serves as an internal construction platform support. It has a simple structure, uses less materials, and has mature equipment and technology. Leaving a passage can reduce the impact of detection and construction operations. Intelligent and mechanized equipment can be set up as appropriate, reducing the investment cost of device manufacturing. Compared with traditional manual detection, the present invention has diverse functions, does not require repeated setting up of operating platforms, can complete detection operations at multiple locations in a certain section at the same time, and can also use different detection equipment such as laser scanning, geological radar, ultrasound, pressure gauge, etc. to complete different detection projects, and has stronger applicability and practicality. At the same time, the detection instrument fixing device in the present invention adopts a retractable arm and a replaceable instrument-specific fixing head, which can be suitable for different detection instruments and equipment and different tunnel sections, and also provides an operating platform for manual detection, defect repair, and installation of brackets and equipment at the internal arch wall of the tunnel, which greatly enhances the applicability and practicality of the present invention; the intelligent equipment in the present invention can be determined based on comprehensive comparisons of on-site construction conditions, personnel and equipment, and cost control. The conversion between full intelligent and manual detection is flexible and easy to operate. It can effectively control equipment costs, enhance the flexibility and convenience of detection and construction, and effectively improve work efficiency, shorten construction period, and reduce operating costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a cross-sectional view of the overall structure of the multifunctional intelligent detection device for tunnels in an embodiment of the present invention;

[0028] Figure 2 AA longitudinal section schematic diagram of the multifunctional intelligent detection device for tunnels in an embodiment of the present invention;

[0029] Figure 3 BB is a cross-sectional schematic diagram of the multifunctional intelligent detection device for tunnels in an embodiment of the present invention;

[0030] Figure 4 It is a CC cross-sectional schematic diagram of the multifunctional intelligent detection device for tunnels in an embodiment of the present invention;

[0031] Figure 5 Schematic diagram of the instrument fixing equipment of the tunnel multifunctional intelligent detection device in the embodiment of the present invention.

[0032] Reference numerals

[0033] 0. Tunnel lining; 1. Vertical support; 1-1. Detachable auxiliary bracket diagonal support; 2. Horizontal support; 3. Diagonal support; 4. Detachable bottom lateral support; 5. Longitudinal connecting support; 5-1. Detachable auxiliary bracket horizontal support; 6. Support seat; 7. Universal wheel; 8. Fixed support arm; 9. Stable connector; 10. Track for moving detection instrument; 11. Instrument fixing device; 12. Detection instrument and equipment; 13. Laser scanner; 14. High-definition camera; 15. Guardrail. Among them, the instrument fixing device 11 includes a rod with a threaded thread 11-1, a nut and a gasket 11-2, a fixing sleeve 11-3, a spring 11-4, a sliding rod 11-5, and an instrument fixing head 11-6. DETAILED DESCRIPTION

[0034] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0035] Example

[0036] like Figure 1-5 As shown, this embodiment is a tunnel used in a single-hole single-line tunnel in a rail transit section in Chongqing.

[0037] The project is a left-right separated section tunnel, with a shield tunnel segment inner diameter of 7.7m, and multiple section single tunnels with a total length of about 26.814km; a single-hole single-line horseshoe-shaped tunnel with a net width of 6.9m, and multiple sections of single-hole tunnels with a total length of about 1.77km. Long-distance tunnels bring difficulties to lining inspection and defect treatment. In order to improve work efficiency and quality and reduce operational risks, a multifunctional detection device suitable for this project is proposed;

[0038] Based on the engineering requirements, after analysis and research, the multifunctional intelligent tunnel detection device provided by the present invention is implemented and verified. In the embodiment, I12 I-beams are combined to form a movable bracket, and #12 channel steel is used as the movable track of the detection instrument. The specific scheme is as follows:

[0039] The movable bracket in the embodiment is provided with 4 vertical supports 1, with a horizontal clear distance of 3.5m and a vertical clear distance of 2m. A support seat 6 and 4 universal wheels 7 are respectively provided at the bottom of the vertical support 1, 2 longitudinal connecting supports 5 and 2 bottom detachable transverse supports 4 are provided at the bottom, 2 transverse supports 2 and 5 longitudinal connecting supports 5 are provided at the top, 4 oblique supports 3 are provided at the corners to support the transverse supports 2, and 2 longitudinal connecting supports 5 are provided in the middle, which are combined together to form a movable portal frame. Two fixed support arms 8 are provided in the middle of the vertical support 1, and one fixed support arm 8 is provided at the corner and the middle of the top transverse support 2, which are in the same plane as the longitudinal connecting support 5, and together form a stable triangular support system for supporting the movable track of the detection instrument. The middle fixed support arm 8 is relatively long, and a stable connector 9 is provided to enhance the stability of the triangular support system. In addition, in order to prevent the movable bracket from tipping over, a detachable auxiliary bracket horizontal support 5-1 and a detachable auxiliary bracket diagonal support 1-1 are arranged in the moving direction, and a support seat 6 and a universal wheel 7 are arranged at the bottom thereof, respectively, which can not only enhance the stability of the movable bracket, but also ensure that the movable bracket can move back and forth.

[0040] The track 10 for moving the detection instrument in the embodiment is 0.5m away from the inner contour of the tunnel. It is made of two #12 channel steels and is reliably connected to the fixed support arm 8. It is only set on the arch wall, and the lower end is firmly connected to the longitudinal connecting support 5.

[0041] The instrument fixing device 11 in the embodiment includes a rod 11-1 with a threaded thread, a nut and a gasket 11-2, a fixed sleeve 11-3, a spring 11-4, a sliding rod 11-5 and a special fixing head 11-6 for the instrument. Among them, the rod 11-1 with a threaded thread passes through the track 10 on which the detection instrument moves, and is fixed to the track 10 by using the nut and gasket 11-2 that rotate in the opposite direction. The spring 11-4 can also be compressed by adjusting the length of the rod 11-1 with a threaded thread in the fixed sleeve 11-3. In order to restore the deformation, the compressed spring 11-4 transfers the load to the sliding rod 11-5 and the special fixing head 11-6 for the instrument, and then acts on the detection instrument, so that the detection instrument fits tightly with the tunnel lining. At the same time, if the detection instrument encounters misalignment and undulation during movement, the sliding rod 11-5 can also compress the spring 11-4 to produce displacement to avoid damage to the detection instrument.

[0042] According to the inspection plan, the instrument fixture 11 is manually fastened to the track 10 at nine inspection positions close to the tunnel lining arch crown, arch shoulder, arch waist, arch foot and side wall. The position of the instrument fixture 11 can also be adjusted along the track 10 according to on-site needs to carry out relevant inspection work.

[0043] In the embodiment, when no detection instrument is added to the end of the instrument fixing device 11, a universal wheel 7 can be installed to evenly support the tunnel lining to improve the stability of the movable bracket. In the embodiment, a method of manually photographing defects such as cracks for archiving is adopted, so a laser scanner 13 and a high-definition camera 14 are not provided, and they can be added later according to the actual needs of the project.

[0044] The movable bracket used in the embodiment has sufficient strength, rigidity and stability, and can be used as an operating platform for manual inspection and defect repair of tunnel lining after laying walkway boards and installing guardrails 15, and has strong practicality.

[0045] In the embodiment, the movable track of the detection instrument of the detection device for the shield tunnel is replaced with one suitable for a single-hole single-line horseshoe tunnel section, and is also well applied in tunnel lining detection, grouting plugging and back cavity filling.

[0046] The multifunctional intelligent tunnel detection device provided by the present invention is suitable for different tunnel sections, multiple detection items and different detection methods, and can provide a construction operation platform for defect repair, bracket installation, etc. The multifunctional intelligent tunnel detection device in the present invention has a simple structure, less consumables, multiple functions, low cost, fast work efficiency, strong adaptability and practicality, and can realize a variety of operation modes of full intelligent, semi-intelligent and manual combination, which can effectively liberate manpower, shorten construction period, reduce operation cost, risk and impact, and achieve multiple goals at one stroke.

[0047] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the invention content within the scope of protection of the present invention.

Claims

1. A multifunctional tunnel intelligent detection device, characterized in that: It includes a mobile bracket, a movable track of a detection instrument arranged close to the inner contour of a tunnel, a detection instrument fixing device, a control system and a traction device.

2. The multifunctional tunnel intelligent detection device according to claim 1 is characterized in that: The movable bracket is composed of a vertical support, a longitudinal connecting support, a transverse support, an inclined support, a support seat, and a fixed support arm. A passage is reserved in the middle of the vertical support, and a support seat and a moving device are installed at the bottom. The movable bracket can move back and forth along the axial direction of the tunnel.

3. The multifunctional tunnel intelligent detection device according to claim 1 is characterized in that: The moving device of the moving bracket comprises four universal wheels with brakes and a power device. The four universal wheels are arranged in a rectangular shape under the supporting seats at the four corners of the moving bracket. The power device provides power for the moving bracket.

4. The multifunctional tunnel intelligent detection device according to claim 1 is characterized in that: The movable bracket can be provided with a detachable auxiliary bracket horizontal support and an oblique support in the moving direction to prevent the movable bracket from tipping over.

5. The multifunctional tunnel intelligent detection device according to claim 1 is characterized in that: The movable track on the detection instrument arranged close to the inner contour of the tunnel is at a distance from the inner contour of the tunnel and is supported and fixed by a fixed support arm. Angle notches are engraved on the movable track for positioning the detection instrument.

6. The multifunctional tunnel intelligent detection device according to claim 5 is characterized in that: The movable track is arranged along the entire contour of the tunnel, or is arranged only in the range of the arch wall.

7. The multifunctional tunnel intelligent detection device according to claim 1 is characterized in that: The upper lateral support, the longitudinal connecting support and the upper part of the horizontal fixed support arm of the movable bracket can also serve as a construction platform.

8. The multifunctional tunnel intelligent detection device according to claim 1 is characterized in that: The detection instrument fixing device is composed of a threaded screw, a fixing fixture, a retractable arm and a replaceable instrument-specific fixing head. It is arranged on the movable track of the detection instrument and can move in a circular direction along the track. Multiple detection instrument fixing devices can be arranged simultaneously along the movable track, and multiple detection instruments can be fixed for simultaneous detection. When the detection instrument is not installed at the end of the fixing device, a universal wheel can be installed instead, and it can be supported on the inner wall of the tunnel to stabilize the mobile bracket.

9. The multifunctional tunnel intelligent detection device according to claim 1 is characterized in that: The control system comprises a display operation panel and a central processing unit. The display operation panel is arranged behind the mobile support, and the central processing unit is arranged between the vertical support of the mobile support and the movable track of the detection instrument.

10. The multifunctional tunnel intelligent detection device according to claim 1, characterized in that: The power device, laser scanner, high-definition camera, ultrasonic and other detection instruments are all connected to the control system by electrical signals, and automatic and intelligent control and detection are achieved through the operation panel. The traction device is arranged on the movable track of the detection instrument, and is used to automatically traction control the instrument fixing device to adjust the position along the movable track.

Images