Multifunctional lining quality detection device and method in highway tunnel construction and maintenance period

Abstract

The invention relates to a multifunctional lining quality detection device and method in the construction and maintenance period of a highway tunnel, and the device comprises a supporting unit, an advancing unit and a lining detection unit, the supporting unit comprises a pair of main supporting arms which are distributed left and right, and a main connecting arm which is arranged between the pair of main supporting arms; the advancing unit is arranged at the lower ends of the pair of main supporting arms and drives the pair of main supporting arms to advance. The lining detection unit comprises a plurality of radar detection assemblies distributed in the circumferential direction of the section of the tunnel, and the radar detection assemblies are installed on a pair of main supporting arms and main connecting arms. The system is reasonable in design, can realize detection of lining internal quality in a tunnel construction period and an operation period, and is suitable for various complex engineering environments; the operability is high, the posture and the advancing speed can be adjusted based on the tunnel contour and the environment, and the continuity and the accuracy of lining quality detection are guaranteed.

Description

Technical Field

[0001] The invention belongs to the technical field of highway tunnel engineering, and in particular relates to a multifunctional lining quality detection device and method for a highway tunnel during the construction and maintenance period. Background Art

[0002] The safety and durability of tunnels are crucial to ensuring smooth traffic and driving safety, and the quality of the lining structure directly affects its efficiency and life. Therefore, it is particularly important to implement effective lining quality testing during the construction and maintenance of tunnels.

[0003] At present, the efficiency of tunnel lining quality inspection is not high, and manual inspection is often required, which is time-consuming and labor-intensive. In addition, the inspection range is limited, and most inspection routes need to be repeated many times to achieve the collection of multiple measurement lines, and the degree of automation is low. In addition, the existing mounted radar detection devices either focus on the tunnel construction period or the operation period, and there are few detection devices that can adapt to both stages at the same time. Summary of the invention

[0004] The present invention makes improvements on the problems existing in the above-mentioned prior art. That is, the technical problem to be solved by the present invention is to provide a multifunctional lining quality detection device and method for the construction and maintenance period of a highway tunnel. The device and method have a reasonable design and can comprehensively, accurately and quickly detect the lining quality during the construction and maintenance period of the tunnel without affecting normal construction and operation.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a multifunctional lining quality inspection device for the construction and maintenance period of a highway tunnel, comprising a support unit, a traveling unit and a lining inspection unit, the support unit comprising a pair of main support arms distributed on the left and right, and a main connecting arm arranged between the pair of main support arms; the traveling unit is arranged at the lower end of the pair of main support arms and drives the pair of main support arms to move; the lining inspection unit comprises a plurality of radar detection components distributed along the circumference of the tunnel cross section, and the plurality of radar detection components are installed on a pair of main support arms and the main connecting arm.

[0006] Furthermore, a vertical sliding track is provided on the opposite sides of a pair of main supporting arms, and two radar detection components are slidably connected to the vertical sliding track; a radar detection component is respectively provided on the top and the upper left and right ends of the main connecting arm.

[0007] Furthermore, the radar detection component includes a telescopic arm, a telescopic end of the telescopic arm is rotatably connected to a rotatable frame, and a radar probe is installed on the rotatable frame.

[0008] Furthermore, four cross-shaped tracks are provided on one end face of the rotatable frame away from the telescopic arm; each radar detection component has four radar probes, the four radar probes correspond to the positions of the four cross-shaped tracks, and each radar probe is respectively installed on the radar rod body, and the radar rod body is rotatably installed on the cross-shaped track at the corresponding position by a rolling ball.

[0009] Furthermore, the radar probe and the radar rod body are connected via a flexible spring.

[0010] Furthermore, the radar detection component also includes a high-definition camera, a lighting component, an infrared distance sensor and a data transmission module, all of which are connected to the terminal platform. The high-definition camera, the lighting component, the infrared distance sensor and the data transmission module are all installed on a rotatable frame. The high-definition camera collects the surface image of the lining, and the radar data detected by the radar probe and the image information collected by the high-definition camera are transmitted to the terminal platform through the data transmission module.

[0011] Furthermore, a dust removal spray nozzle is also provided on the rotatable frame of the radar detection component.

[0012] Furthermore, a vertical telescopic arm is installed on the top of each main supporting arm, and transverse telescopic arms are respectively installed on the left and right ends of the lower part of the main connecting arm. The transverse telescopic arms on the left and right ends of the lower part of the main connecting arm are respectively connected to the vertical telescopic arms on the top of a pair of main supporting arms. The transverse telescopic arms on the left and right ends of the lower part of the main connecting arm drive the pair of main supporting arms to move left and right toward each other or back to back.

[0013] Furthermore, the traveling unit includes a pair of bases distributed on the left and right, and traveling tracks are installed on the left and right ends of each base. A transverse roller that can be retracted vertically is installed in the middle of the bottom surface of the base, and the transverse roller can move left and right; a pair of main support arms correspond to the positions of the pair of bases, and the main support arms are vertically installed on the upper part of the bases at corresponding positions.

[0014] Another technical solution adopted by the present invention is: a multifunctional lining quality detection method for a highway tunnel during the construction and maintenance period, comprising the following steps: Step a: Start the device at the starting point of the required mileage detection, extend the lateral roller downward until the traveling track leaves the ground, then extend the lateral telescopic arm in the left and right directions, and drive the pair of main support arms to move in opposite directions in the left and right directions, so that the space between the pair of main support arms does not affect the normal passage of vehicles; Step b: Perform posture adjustment, the telescopic arm of each radar detection component automatically extends and retracts, the rotatable frame on the telescopic arm automatically rotates, the telescopic arms of the four radar detection components at the bottom of the entire device are moved to the specified position, and finally the radar probe is fitted to the inner wall of the tunnel; Step c: The traveling unit moves longitudinally in the tunnel, performs quality inspection and image acquisition on the tunnel lining, and transmits the acquired radar data and high-definition images to the terminal platform for display; Step d: The terminal platform analyzes the collected data and images. If any disease problems occur, they are displayed and warned in real time on the platform.

[0015] Compared with the prior art, the present invention has the following effects: the present invention is reasonably designed, can realize the detection of the internal quality of the lining during the tunnel construction period and the operation period, and is suitable for a variety of complex engineering environments; it has strong operability, can adjust the posture and travel speed based on the tunnel contour and environment, and ensure the consistency and accuracy of the lining quality detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of an embodiment of the present invention in an initial state; Figure 2 It is a schematic diagram of the structure of the embodiment of the present invention in a working state; Figure 3 is a schematic diagram of the structure of a radar detection component in an embodiment of the present invention; Figure 4 is a three-dimensional schematic diagram of the radar mounting situation in an embodiment of the present invention; Figure 5 is a schematic top view of the radar mounting situation in an embodiment of the present invention; Figure 6 is a schematic diagram of the connection between the radar probe and the radar rod body in an embodiment of the present invention; Figure 7 1 is a control principle diagram of an embodiment of the present invention.

[0017] In the figure: 1- radar detection component; 2- dust removal spray nozzle; 3- rotatable frame; 4- telescopic arm; 5- horizontal telescopic arm; 6- vertical telescopic arm; 7- vertical sliding track; 8- main support arm; 9- main connecting arm; 10- base; 11- traveling track; 12- horizontal roller; 13- cylindrical connector; 14- cross track; 15- radar probe; 16- high-definition camera; 17- lighting component; 18- infrared distance sensor; 19- data transmission module; 20- radar rod body; 21- flexible spring; 22- rolling ball. DETAILED DESCRIPTION

[0018] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0019] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0020] like Figures 1 to 6 As shown, the present invention is a multifunctional lining quality detection device for the construction and maintenance period of a highway tunnel, which is intended to comprehensively, accurately and quickly detect the lining quality of the tunnel during the construction and maintenance period without affecting normal construction and operation, and to improve the intelligent level of lining quality detection and diagnosis. The device specifically comprises a support unit, a travel unit and a lining detection unit. The support unit comprises a pair of main support arms 8 distributed on the left and right, and a main connecting arm 9 arranged between the pair of main support arms 8; the travel unit is arranged at the lower end of the pair of main support arms 8 and drives the pair of main support arms 8 to move, and the travel unit is used to control the entire device to move in the tunnel; the lining detection unit comprises a plurality of radar detection components 1 distributed circumferentially along the cross-section of the tunnel, and the plurality of radar detection components 1 are installed on a pair of main support arms 8 and the main connecting arm 9, so as to fit with the inner wall of the tunnel to realize lining quality detection.

[0021] In this embodiment, there are seven radar detection components 1, and a pair of main support arms 8 are provided with vertical sliding tracks 7 on opposite sides, that is, the left side of the main support arm 8 on the left is provided with a vertical sliding track 7, and the right side of the main support arm 8 on the right is also provided with a vertical sliding track 7. Two radar detection components 1 are slidably connected to the vertical sliding track 7 on each main support arm 8, and the two radar detection components 1 on the vertical sliding track 7 can move up and down to achieve position adjustment. A radar detection component 1 is provided at the top and left and right ends of the upper part of the main connecting arm 9.

[0022] In this embodiment, the seven radar detection components have the same structure. Each of the radar detection components 1 includes a telescopic arm 4. The telescopic end of the telescopic arm 4 is rotatably connected to a rotatable frame 3 through a cylindrical connector 13. The rotatable frame 3 can rotate 180 degrees around the cylindrical connector. A radar probe 15 is installed on the rotatable frame 3. Further, in the two radar detection components 1 on the vertical sliding track 7, the telescopic arms 4 are both arranged horizontally (i.e., telescopic in the horizontal direction); in the radar detection component 1 on the top of the main connecting arm 9, the telescopic arm 4 is arranged vertically (i.e., telescopic in the vertical direction); in the radar detection components 1 on the left and right ends of the upper part of the main connecting arm 9, the telescopic arms 4 are arranged horizontally.

[0023] In this embodiment, a vertical telescopic arm 6 is installed on the top of each main supporting arm 8, and transverse telescopic arms 5 are respectively installed on the left and right ends of the lower part of the main connecting arm 9. The transverse telescopic arms 5 on the left and right ends of the lower part of the main connecting arm 9 are respectively connected to the vertical telescopic arms 6 on the top of a pair of main supporting arms 8. When the vertical telescopic arms 6 are telescoped, the height of the main connecting arm 9 can be adjusted; the transverse telescopic arms 5 on the left and right ends of the lower part of the main connecting arm 9 drive a pair of main supporting arms 8 to move toward or away from each other left and right, so that the distance between the pair of main supporting arms 8 can be adjusted to ensure that normal vehicle traffic is not affected.

[0024] In this embodiment, the vertical telescopic arm 6, the transverse telescopic arm 5 and the telescopic arm 4 of each radar detection component 1 are combined so that the telescopic adjustment can be performed according to the change of the tunnel contour during the movement of the entire device (that is, the posture adjustment of the entire device) to ensure that the radar probe fits the inner wall of the tunnel. Further, it should be noted that the vertical telescopic arm and the transverse telescopic arm are both electrically telescopic structures, and the motors, guide rails and other components they carry are all arranged inside each other. Their specific structure and working principle will not be repeated here. The telescopic arm of the radar detection component is telescopic through a hydraulic drive system, including a hydraulic pump, a hydraulic cylinder, and a control valve. The hydraulic pump provides power to the hydraulic cylinder, and the control valve controls the telescopic action of the hydraulic cylinder, thereby realizing the telescopic movement of the telescopic arm. The hydraulic cylinder is connected to the telescopic structure inside the telescopic arm, and converts hydraulic energy into mechanical energy to drive the telescopic movement. At the same time, the rotatable frame is rotated through a transmission device composed of a motor, a reducer, and a coupling. The output torque of the motor is decelerated and increased by the reducer, and then transmitted to the rotatable frame through the coupling. The motor is connected to the control system and can realize forward rotation, reverse rotation and precise angle rotation according to the control instructions. No further repetition will be made here.

[0025] In this embodiment, the end face of the rotatable frame 3 away from the telescopic arm 4 is provided with four cross-shaped rails 14 distributed in a rectangular shape; each radar detection component 1 has four radar probes 15, and the four radar probes 15 correspond to the positions of the four cross-shaped rails 14. Each radar probe 15 is respectively installed on the radar rod body 20, and the radar rod body 20 is rotatably installed on the middle part of the cross-shaped rail 14 corresponding to the position through a rolling ball 22. The radar rod 20 can be tilted along the space defined by the cross-shaped rail, thereby driving the tilting movement of the radar probe; further, a radar probe and a cross-shaped rail are arranged in each of the four directions of 45°, 135°, 225° and 315°. It should be further explained that the radar probe includes an antenna probe and a host, the probe is arranged at the top, and the host is installed on the outside of the telescopic arm. The collected data is wirelessly transmitted to the terminal through the data transmission module. The radar rod body is rotatably connected to the cross track through a rolling ball. The radar rod body is connected to the hydraulic cylinder through a connecting rod mechanism. The hydraulic cylinder is used as a power source. When the radar probe needs to be tilted, the hydraulic cylinder pushes the connecting rod mechanism, and the connecting rod mechanism is connected to the radar rod body, driving the radar rod body to tilt on the cross track.

[0026] In this embodiment, since the outline size of the same tunnel along the travel direction is not completely consistent, in order to ensure that the radar can always fit the inner wall of the tunnel during the detection process, the radar probe 15 and the radar rod body 20 are connected by a flexible spring 21. The flexible spring 21 ensures flexible contact between the radar probe and the inner wall of the tunnel to prevent the fit from being too tight due to the reduction of the tunnel outline. The stability of the fit between the radar probe 15 and the inner wall of the tunnel is ensured by the spring compression and the automatic contraction of the telescopic arm 4.

[0027] In this embodiment, the radar detection component 1 also includes a high-definition camera 16, a lighting component 17, an infrared distance sensor 18 and a data transmission module 19, all of which are connected to the terminal platform. The high-definition camera 16, the lighting component 17, the infrared distance sensor 18 and the data transmission module 19 are all installed on the circular top of the rotatable frame 3 and are controlled by the terminal platform. The high-definition camera 16 collects the surface image of the lining, and the radar data detected by the radar probe 15 and the image information collected by the high-definition camera 16 are transmitted to the terminal platform through the data transmission module 19.

[0028] In this embodiment, in the terminal platform, the distance between the infrared distance sensor 18 and the top of the radar probe 15 is preset. H , get the distance between the infrared distance sensor 18 and the inner wall of the tunnel m , and then automatically obtain the fit between the radar probe and the inner wall of the tunnel a : a = m - H .whena =0, it proves that the radar probe 15 is closely attached to the inner wall of the tunnel; a When >0, it proves that there is a gap between the radar probe and the inner wall of the tunnel and adjustment is required; according to the actual engineering conditions on site, lighting components are used to enhance the image acquisition quality.

[0029] In this embodiment, in order to enhance the image acquisition quality, a dust removal spray nozzle 2 is further provided on the rotatable frame 3 of the radar detection component 1, and the dust removal spray nozzle 2 is used to spray water mist to achieve dust removal. Sometimes there is too much dust or low visibility in the tunnel, which affects the image acquisition quality. The dust removal spray nozzle 2 and the lighting component 17 are kept turned on normally to enhance the image clarity.

[0030] In this embodiment, the traveling unit includes a pair of bases 10 distributed on the left and right, and a traveling track 11 is installed at the left and right ends of each base 10, and the traveling movement is realized by the traveling track 11. A transverse roller 12 that can be retracted vertically is installed in the middle of the bottom surface of the base 10, and the transverse roller 12 can move left and right; a pair of main support arms 8 corresponds to the position of the pair of bases 10, and the main support arms 8 are vertically installed on the upper part of the bases 10 corresponding to the position. When working: start the device at the starting point of the required mileage detection, extend the transverse roller 12 downward until the traveling track 11 leaves the ground, then the transverse telescopic arm 5 extends in the left and right direction, and the transverse telescopic arm 5 drives the pair of main support arms 8 to move back to back in the left and right direction. The transverse roller 12 plays a role in supporting the movement, so that the space between the pair of main support arms 8 does not affect the normal passage of vehicles.

[0031] In this embodiment, the terminal platform is a visual operation platform integrated with the control and quality analysis unit, including travel, telescopic arm extension, rotatable frame rotation, radar pole tilt, dust removal, lighting switch, and high-definition camera acquisition frequency are all controlled through this terminal platform; the device position, travel speed, current status, and test results can all be directly displayed on this terminal platform; the data obtained from the test and photography can all be processed and analyzed through this terminal platform. In addition, the terminal platform also embeds relevant lining support specifications, can analyze and evaluate the lining quality according to the test results, and instantly mark the apparent damage in combination with image information, automatically count the disease information, and provide timely warning prompts.

[0032] In this embodiment, the traveling crawler 11 has three traveling modes, namely, preset traveling distance and speed mode, cruise control mode and manual control mode, and the traveling crawler can switch the three modes through the terminal platform. Among them, the preset traveling distance and speed mode is to set the mileage segment and the traveling speed to be detected in advance, and the device works according to the preset content; the cruise control mode is to set the traveling speed to work, and the cruising speed can be changed at any time; the manual control mode is to manually control the movement of the device.

[0033] In this embodiment, the telescopic arm 4 and the rotatable frame 3 are also divided into two operation modes: automatic and manual, which can be switched through the terminal platform. After the device is started, the telescopic arm and the rotatable frame are automatically adjusted in the automatic mode, and automatically stop when the radar and the inner wall of the tunnel are just in contact through the infrared distance sensor; if fine-tuning or adjustment of the detection part is required, it can be adjusted through the manual mode.

[0034] In this embodiment, the working principle is as follows: When in use, first move the device to the designated position, and start the device at the starting point of the required detection mileage; extend the retractable transverse roller 12 downward through the terminal platform to contact the ground, and until the traveling track 11 leaves the ground, the transverse telescopic arm 5 is extended left and right, and the transverse roller 12 is moved left and right, so that the space between the two main support arms 8 does not affect the rest of the construction work and the passage of vehicles; the telescopic arms of the radar detection components at the four bottom parts of the entire device are extended, and at the same time, they are moved up and down through the vertical sliding track 7 until the radar probe 15 reaches the designated detection position, and the rotatable frame 3 and the radar rod body 20 control the radar probe 15 to fit exactly with the inner wall of the tunnel; The telescopic arms 4 of the three radar detection components 1 are also adjusted by telescopic adjustment and angle rotation to achieve a close fit between the radar probe 15 and the inner wall of the tunnel; then the transverse roller 12 is retracted upward until the traveling track 11 is completely placed on the ground; the travel control function in the terminal platform is started, and the entire device moves along the tunnel direction. The radar probe 15 is used to collect the internal quality data of the tunnel lining, and the lighting component 17 and the external infrared distance sensor 18 are kept turned on. The dust removal spray nozzle 2 is used, and the high-definition camera 16 is used to collect the surface image of the lining; the radar data and image information are transmitted to the terminal platform through the data transmission module 19 for display and analysis.

[0035] The detection device can not only detect the lining quality of the initial support and the secondary lining during the tunnel construction period, but also obtain information on the internal quality and apparent damage of the lining during the operation period of the tunnel. In the detection process, the telescopic state of the horizontal telescopic arm 5 and the vertical telescopic arm 6 remains unchanged, and the telescopic arm 4, the rotatable frame 3 and the radar rod body 20 of the radar detection component continuously adjust their posture according to the tunnel contour to ensure good contact between the radar and the inner wall of the tunnel, and the normal passage of other vehicles in the space formed between the two main support arms 8; the detection data and the collected images can be transmitted to the terminal platform in real time through the data transmission module to ensure the immediacy of the information, and at the same time, if there is any problem in the detection, it can be discovered and solved in time.

[0036] In this embodiment, the multifunctional lining quality detection method for a highway tunnel during the construction and maintenance period comprises the following steps: Step a: Before use, move the device to the designated location and start the device at the starting point of the mileage to be tested; Step b: Extend the lateral roller 12 downward until the traveling crawler 11 leaves the ground, then extend the lateral telescopic arm 5 in the left-right direction, and drive the pair of main support arms 8 to move in opposite directions in the left-right direction, so that the space between the pair of main support arms 8 does not affect other construction operations and normal vehicle traffic; Step c: Performing posture adjustment, the telescopic arms 4 of the four radar detection components 1 at the bottom of the device are extended, and at the same time, the two radar detection components 1 on the same side are moved up and down through the vertical sliding track 7, so that the telescopic arms 4 of the four radar detection components 1 at the bottom of the device are moved to the specified position until the radar probe 15 of the radar detection component 1 is just in contact with the inner wall of the tunnel; the three radar detection components 1 at the top of the device are also adjusted by telescopic adjustment of the telescopic arms 4 and the angle rotation of the rotatable frame 3, so that the radar probe 15 is closely attached to the inner wall of the tunnel, and finally the transverse roller 12 is retracted upward until the traveling crawler 11 is completely placed on the ground; Step d: The traveling unit is started, and the whole device moves along the tunnel direction. The internal quality data of the tunnel lining is collected through the radar probe 15, and the lighting component 17 and the external infrared distance sensor 18 are kept turned on. The dust removal spray nozzle 2 is used to collect the lining surface image with the high-definition camera 16, and the acquired radar data and high-definition image are transmitted to the terminal platform and displayed; Step e: The terminal platform analyzes the collected data and images. If any disease problems occur, they will be displayed and warned in real time on the platform.

[0037] The advantages of the present invention are: (1) It can achieve close fit between the detection device and the inner wall of the tunnel, accurately locate the required measuring points, detect five measuring lines at the same time, and change the measuring lines and measuring points at any time during the on-the-go detection process; (2) Through the travel unit and the terminal platform, the device can switch travel modes. It is equipped with crawler-type walking and retractable lateral rollers to adapt to a variety of complex ground conditions. It can complete travel in different directions such as front, back, left and right, and has high flexibility. (3) The rotatable frame carrying the radar probe can adjust the detection angle at any time, and the cross-shaped moving track where the radar connecting rod is located can further change the angle of the radar; (4) The detection range of the device can cover all contours of the tunnel except the ground, and each telescopic arm is equipped with four radar probes to ensure the comprehensiveness and accuracy of the detection data, and realize the automation and intelligence of the detection process; (5) The terminal platform can visualize the collected parameters on this unit platform. By collecting radar data and image information, it can comprehensively analyze and warn the internal defects and appearance quality of the lining during the tunnel construction and operation and maintenance periods.

[0038] If the present invention discloses or involves components or structures that are fixedly connected to each other, then, unless otherwise stated, the fixed connection can be understood as: a detachable fixed connection (for example, connection using bolts or screws), and can also be understood as: a non-detachable fixed connection (for example, riveting, welding). Of course, the mutual fixed connection can also be replaced by an integrated structure (for example, manufactured by one-piece molding using a casting process) (except when it is obviously impossible to use an one-piece molding process).

[0039] In addition, unless otherwise stated, the terms used to indicate positional relationships or shapes in any of the technical solutions disclosed in the present invention include states or shapes that are approximate, similar, or close to them.

[0040] Any component provided by the present invention may be assembled from a plurality of separate components, or may be a separate component manufactured by an integral forming process.

[0041] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. A multifunctional lining quality detection device for highway tunnel construction and maintenance period, characterized by: It includes a supporting unit, a traveling unit and a lining detection unit, wherein the supporting unit includes a pair of main supporting arms distributed on the left and right, and a main connecting arm arranged between the pair of main supporting arms; the traveling unit is arranged at the lower end of the pair of main supporting arms and drives the pair of main supporting arms to move; the lining detection unit includes a plurality of radar detection components distributed along the circumference of the tunnel cross section, and the plurality of radar detection components are installed on the pair of main supporting arms and the main connecting arm.

2. A multifunctional lining quality detection device for a highway tunnel during construction and maintenance period according to claim 1, characterized in that: A pair of main supporting arms are each provided with a vertical sliding track on the opposite sides thereof, and two radar detection components are slidably connected to the vertical sliding track; a radar detection component is respectively provided on the top and the left and right ends of the upper part of the main connecting arm.

3. A multifunctional lining quality detection device for a highway tunnel during the construction and maintenance period according to claim 1 or 2, characterized in that: The radar detection component comprises a telescopic arm, a telescopic end of the telescopic arm is rotatably connected to a rotatable frame, and a radar probe is installed on the rotatable frame.

4. A multifunctional lining quality detection device for a highway tunnel during construction and maintenance period according to claim 3, characterized in that: The rotatable frame is provided with four cross-shaped tracks on one end face away from the telescopic arm; each radar detection assembly has four radar probes, the four radar probes correspond to the positions of the four cross-shaped tracks, and each radar probe is respectively installed on a radar rod body, and the radar rod body is rotatably installed on the cross-shaped track at the corresponding position by a rolling ball.

5. A multifunctional lining quality detection device for highway tunnel construction and maintenance period according to claim 4, characterized in that: The radar probe and the radar rod body are connected via a flexible spring.

6. The multifunctional lining quality detection device for highway tunnel construction and maintenance period according to claim 3 is characterized by: The radar detection component also includes a high-definition camera, a lighting component, an infrared distance sensor and a data transmission module, all of which are connected to the terminal platform. The high-definition camera, the lighting component, the infrared distance sensor and the data transmission module are all installed on a rotatable frame. The high-definition camera collects the surface image of the lining, and the radar data detected by the radar probe and the image information collected by the high-definition camera are transmitted to the terminal platform through the data transmission module.

7. The multifunctional lining quality detection device for highway tunnel construction and maintenance period according to claim 3 is characterized by: A dust removal spray nozzle is also arranged on the rotatable frame of the radar detection component.

8. The multifunctional lining quality detection device for highway tunnel construction and maintenance period according to claim 1 is characterized by: A vertical telescopic arm is installed on the top of each main supporting arm, and transverse telescopic arms are respectively installed on the left and right ends of the lower part of the main connecting arm. The transverse telescopic arms on the left and right ends of the lower part of the main connecting arm are respectively connected to the vertical telescopic arms on the top of a pair of main supporting arms. The transverse telescopic arms on the left and right ends of the lower part of the main connecting arm drive the pair of main supporting arms to move left and right toward each other or back to back.

9. The multifunctional lining quality detection device for highway tunnel construction and maintenance period according to claim 1 is characterized by: The traveling unit includes a pair of bases distributed on the left and right, and traveling tracks are installed on the left and right ends of each base. A transverse roller that can be retracted vertically is installed in the middle of the bottom surface of the base, and the transverse roller can move left and right; a pair of main support arms correspond to the positions of the pair of bases, and the main support arms are vertically installed on the upper part of the bases at corresponding positions.

10. A multifunctional lining quality detection method for a highway tunnel during the construction and maintenance period, characterized in that: The method comprises adopting the multifunctional lining quality detection device for the construction and maintenance period of a highway tunnel as claimed in any one of claims 1 to 9, comprising the following steps: Step a: Start the device at the starting point of the required mileage detection, extend the lateral roller downward until the traveling track leaves the ground, then extend the lateral telescopic arm in the left and right directions, and drive the pair of main support arms to move in opposite directions in the left and right directions, so that the space between the pair of main support arms does not affect the normal passage of vehicles; Step b: Perform posture adjustment, the telescopic arm of each radar detection component automatically extends and retracts, the rotatable frame on the telescopic arm automatically rotates, the telescopic arms of the four radar detection components at the bottom of the entire device are moved to the specified position, and finally the radar probe is fitted to the inner wall of the tunnel; Step c: The traveling unit moves longitudinally in the tunnel, performs quality inspection and image acquisition on the tunnel lining, and transmits the acquired radar data and high-definition images to the terminal platform for display; Step d: The terminal platform analyzes the collected data and images. If any disease problems occur, they are displayed and warned in real time on the platform.

Images