Laser scanning device for asphalt paving construction and construction method in tunnel

Abstract

The invention discloses a laser scanning device for asphalt paving construction and a construction method in a tunnel, and belongs to the technical field of tunnel engineering. The laser scanning device for asphalt paving construction comprises a box body and an adjusting column, the adjusting column is located in the box body, a sleeve is arranged outside the adjusting column, a moving block is arranged outside the sleeve, and a mounting plate is arranged on one side of the box body; a display panel, a laser control panel, a bubble level and a foot margin control panel are arranged on the side face of the mounting plate. In order to solve the problems that the space in a tunnel is narrow, the asphalt paving operation efficiency is low, and the engineering quality is difficult to guarantee, an original paver is refitted, so that the paver can adapt to the narrow space of the tunnel, then a box body is arranged on a construction road section, and the box body emits laser parallel to a construction surface outwards; and finally, personnel control the modified paver to carry out asphalt paving operation along the laser, so that the accuracy of construction operation is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of tunnel engineering, and in particular to a laser scanning device for asphalt paving construction and a construction method in a tunnel. Background Art

[0002] Tunnel construction is a complex and sophisticated project that involves multiple fields such as transportation, underground facilities, and urban planning. Before tunnel construction, a design scheme is required based on the specific conditions of the project, including the location, length, depth, and cross-sectional shape of the tunnel. The design scheme needs to meet the needs of the project while taking into account the feasibility and safety of the construction. After the tunnel design scheme is determined, it is necessary to survey the specific geological conditions of the project, including geological structure, stratigraphic conditions, and groundwater conditions.

[0003] However, in tunnel engineering, sometimes there is a situation where the clearance in the tunnel is insufficient due to design or actual conditions. The traditional asphalt pavement construction method is often restricted and cannot be constructed normally, which not only affects the progress of the project, but may also reduce the quality and service life of the pavement. There is a problem that the space in the tunnel is narrow, which makes the asphalt paving operation efficiency low and the project quality difficult to guarantee; therefore, the existing needs are not met, and this application proposes a laser scanning device for asphalt paving construction and a construction method in the tunnel. Summary of the invention

[0004] The purpose of the present invention is to provide a laser scanning device for asphalt paving construction and a construction method in a tunnel. By modifying the original paver, the paver can adapt to the narrow space of the tunnel, and then a box is set up on the construction section. The box emits a laser parallel to the construction surface. Finally, personnel control the modified paver to spread asphalt along the laser to ensure the accuracy of the construction operation, which can solve the problems in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a laser scanning device for asphalt paving construction, comprising a box body and an adjusting column, wherein the adjusting column is located inside the box body, a sleeve is arranged outside the adjusting column, a moving block is arranged outside the sleeve, guide rods are arranged at both ends of the moving block, a laser emitter is arranged at one end of the guide rod, a mounting plate is arranged on one side of the box body, a display panel, a laser control panel, a bubble level and a ground control panel are arranged on the side of the mounting plate, a fixing plate is arranged below the box body, a ground foot is arranged below the fixing plate, and scale lines are arranged on the side of the display panel.

[0006] Preferably, a threaded wall is provided on the surface of the adjusting column, the sleeve is threadedly connected to the adjusting column, a first motor is provided on the side of the moving block, the first motor is axially connected to one end of the guide rod, and a limiting plate is provided at the lower end of the sleeve.

[0007] Preferably, a second motor is provided on one side of the moving block, a driving wheel is provided at the upper end of the second motor, a driven wheel is provided at the upper end of the sleeve, the driving wheel is connected to the second motor shaft, and the driving wheel and the driven wheel are connected through a belt.

[0008] Preferably, the fixed plate is a hollow rectangular structure with an open bottom, an electric telescopic rod is arranged inside the fixed plate, a slide is arranged on the inner wall of the fixed plate, a slider is arranged at one end of the electric telescopic rod, a support rod is arranged at one end of the slider, and a slide groove is arranged on the side of the slider.

[0009] Preferably, a positioning plate is provided on the top of the foot, a guide column is provided on the top of the positioning plate, one end of the support rod is connected to the positioning plate shaft, the other end of the support rod is connected to the slider shaft, a guide sleeve is provided outside the guide column, and the guide sleeve is fixed under the box body.

[0010] A method for asphalt paving construction in a tunnel is implemented based on a laser scanning device for asphalt paving construction, comprising the following steps:

[0011] S1. Adjust and modify the local position of the original paver;

[0012] S2. Place the box on the construction section and adjust the height of the two feet until the bubble level is in a horizontal state;

[0013] S3. Adjust the height of the moving block according to the construction design drawing, and adjust the laser angle emitted by the laser transmitter until the laser is parallel to the construction ground;

[0014] S4. The paver spreads asphalt on the construction section along the laser, and the asphalt thickness is the height of the moving block displayed on the display panel.

[0015] Preferably, the adjustment and modification of the local position of the original paver in S1 includes the following steps:

[0016] S101, cut the upper roof of the paver and lower the height of the smoke exhaust port;

[0017] S102, converting the original crawler wheels of the paver into two guide tires at the front end and two drive tires at the rear end;

[0018] S103, installing anglers on the wheel axles of the two guide tires.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. The present invention reduces the overall height of the original paver, converts the crawler wheels of the original paver into tires, and finally installs a turner at the front wheel axle position, so that the paver can adapt to the narrow space of the tunnel. When it is necessary to pave asphalt in the tunnel, the personnel set up a box on the construction section, and the interior of the box is provided with a moving block that can move up and down. The height of the moving block is adjusted according to the construction design drawings, and the angle of the laser emitted by the laser transmitter is adjusted until the laser is parallel to the construction ground. Finally, the personnel control the modified paver to pave asphalt along the laser. The asphalt thickness is the height of the moving block displayed on the display panel, thereby meeting the requirements for construction in tunnels with narrow space and insufficient light, and ensuring the accuracy of the construction operation.

[0021] 2. The present invention arranges feet at the bottom of the box. After the personnel arranges the box on the construction section, the box needs to be adjusted to a horizontal state. At this time, the personnel can adjust the height of the left and right feet by controlling the extension and retraction of the electric telescopic rod through the foot control panel. When the electric telescopic rod is extended, the feet descend along the guide column, and vice versa. The two feet can cooperate to adjust the box to a horizontal state. At the same time, the personnel can control the rotation of the first motor through the laser control panel to adjust the laser angle emitted by the laser transmitter until the laser is parallel to the construction ground. The height of the moving block can be adjusted by controlling the rotation of the second motor through the laser control panel. After the second motor rotates, it drives the sleeve to rotate. Since the sleeve is threadedly connected to the adjusting column, the sleeve can move up and down along the adjusting column when it rotates, and then the moving block moves up and down, thereby realizing the adjustment of the laser emission angle and height, which can meet the surveying and mapping requirements and improve the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is an overall schematic diagram of the present invention;

[0023] Figure 2 It is a schematic diagram of the local structure of the adjustment column of the present invention;

[0024] Figure 3 It is a schematic diagram of the local structure of the moving block of the present invention;

[0025] Figure 4 It is a schematic diagram of the local structure of the foot of the present invention;

[0026] Figure 5 This is a schematic diagram of the modification of the original paver of the present invention;

[0027] Figure 6 This is a schematic diagram of installing the corner turner of the present invention;

[0028] Figure 7 It is a schematic diagram of scale lines of the display panel of the present invention.

[0029] In the figure: 1. box body; 101. mounting plate; 102. display panel; 103. laser control panel; 104. bubble level; 105. anchor control panel; 106. fixing plate; 2. adjusting column; 201. moving block; 202. guide rod; 203. laser transmitter; 204. first motor; 205. second motor; 2051. driving wheel; 206. belt; 207. sleeve; 2071. driven wheel; 2072. limit plate; 3. anchor; 301. positioning plate; 302. guide column; 3021. guide sleeve; 303. support rod; 304. slider; 3041. slide groove; 3042. slideway; 305. electric telescopic rod. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] In order to solve the problem that the space in the tunnel is narrow, which makes the asphalt paving work inefficient and the engineering quality difficult to guarantee, please refer to Figure 1-7 , this embodiment provides the following technical solutions:

[0032] A laser scanning device for asphalt paving construction includes a box body 1 and an adjusting column 2, wherein the adjusting column 2 is located inside the box body 1, a sleeve 207 is arranged outside the adjusting column 2, a moving block 201 is arranged outside the sleeve 207, guide rods 202 are arranged at both ends of the moving block 201, a laser emitter 203 is arranged at one end of the guide rod 202, a mounting plate 101 is arranged on one side of the box body 1, a display panel 102, a laser control panel 103, a bubble level 104 and a foot control panel 105 are arranged on the side of the mounting plate 101, a fixing plate 106 is arranged below the box body 1, a foot 3 is arranged below the fixing plate 106, and scale lines are arranged on the side of the display panel 102.

[0033] A threaded wall is provided on the surface of the adjusting column 2, and the sleeve 207 is threadedly connected to the adjusting column 2. A first motor 204 is provided on the side of the moving block 201, and the first motor 204 is axially connected to one end of the guide rod 202. A limiting plate 2072 is provided at the lower end of the sleeve 207. A second motor 205 is provided on one side of the moving block 201, and a driving wheel 2051 is provided at the upper end of the second motor 205. A driven wheel 2071 is provided at the upper end of the sleeve 207, and the driving wheel 2051 is connected to the shaft of the second motor 205. The driving wheel 2051 and the driven wheel 2071 are connected through a belt 206.

[0034] Specifically, personnel can control the rotation mode of the first motor 204 through the laser control panel 103, adjust the laser angle emitted by the laser emitter 203 until the laser is parallel to the construction ground, and control the rotation mode of the second motor 205 through the laser control panel 103 to adjust the height of the moving block 201. After the second motor 205 rotates, it drives the sleeve 207 to rotate. Since the sleeve 207 is threadedly connected to the adjustment column 2, the sleeve 207 can move up and down along the adjustment column 2 when rotating, and then the moving block 201 moves up and down, thereby realizing the adjustment of the laser emission angle and height, which can meet the surveying and mapping requirements and further improve the construction efficiency in the tunnel.

[0035] The fixed plate 106 is a hollow rectangular structure with an open bottom. An electric telescopic rod 305 is arranged inside the fixed plate 106, and a slideway 3042 is arranged on the inner wall of the fixed plate 106. A slider 304 is arranged at one end of the electric telescopic rod 305, a support rod 303 is arranged at one end of the slider 304, and a slide groove 3041 is arranged on the side of the slider 304. A positioning plate 301 is arranged on the top of the foot 3, and a guide column 302 is arranged on the top of the positioning plate 301. One end of the support rod 303 is connected to the axis of the positioning plate 301, and the other end of the support rod 303 is connected to the axis of the slider 304. A guide sleeve 3021 is arranged on the outside of the guide column 302, and the guide sleeve 3021 is fixed to the bottom of the box body 1.

[0036] Specifically, after the personnel set the box 1 in the construction section, they need to adjust the box 1 to a horizontal state. At this time, the personnel can adjust the height of the left and right feet 3 by controlling the extension and retraction of the electric telescopic rod 305 through the foot control panel 105. When the electric telescopic rod 305 is extended, the foot 3 descends along the guide column 302, and vice versa. The two foot 3 can cooperate to adjust the box 1 to a horizontal state, thereby improving the adaptability of the box 1 in different sites and further improving the accuracy of subsequent laser mapping.

[0037] A method for asphalt paving construction in a tunnel is implemented based on a laser scanning device for asphalt paving construction, comprising the following steps:

[0038] S1. Adjust and modify the local position of the original paver so that the paver can adapt to the narrow tunnel space and improve the construction efficiency of the paver in the tunnel;

[0039] S2, place the box 1 on the construction section, and adjust the height of the two feet 3 until the bubble level 104 is in a horizontal state, wherein the electric telescopic rod 305 extends and the feet 3 descend along the guide column 302, and vice versa, the two feet 3 cooperate to adjust the box 1 to a horizontal state, thereby improving the accuracy of subsequent laser mapping;

[0040] S3. Adjust the height of the moving block 201 according to the construction design drawing, and adjust the angle of the laser emitted by the laser emitter 203 until the laser is parallel to the construction ground, wherein the laser control panel 103 controls the second motor 205 to rotate, and the second motor 205 controls the sleeve 207 to rotate, so that the sleeve 207 moves up and down along the adjustment column 2, thereby moving the moving block 201 up and down, and the laser control panel 103 controls the first motor 204 to rotate, and the first motor 204 controls the guide rod 202 to move, thereby controlling the laser emission angle;

[0041] S4. Personnel controls the modified paver to spread asphalt on the construction section along the laser. The asphalt thickness is the height of the moving block 201 displayed on the display panel 102, which ensures the accuracy of the construction and solves the shortcoming of not being able to accurately measure when there is insufficient light in the tunnel.

[0042] Specifically, in S1, the local position of the original paver is adjusted and modified, including the following steps:

[0043] S101, cutting the upper roof of the paver and lowering the height of the smoke exhaust port, thereby reducing the overall height of the paver;

[0044] S102, converting the original crawler wheels of the paver into two guide tires at the front end and two drive tires at the rear end;

[0045] S103. An angler is installed on the axles of the two guide tires. The angler can realize unidirectional rotation control of a single tire, so that the guide tire can have the ability to rotate in a small radius, thereby improving the flexibility of the paver during operation, thereby adapting to the narrow tunnel environment.

[0046] Working principle: personnel first modify the original paver so that it can adapt to the narrow space of the tunnel, and then set up a box 1 on the construction section. A movable block 201 that can move up and down is set inside the box 1. Personnel adjust the height of the movable block 201 according to the construction design drawings, and adjust the angle of the laser emitted by the laser transmitter 203 until the laser is parallel to the construction ground. Finally, personnel control the modified paver to spread asphalt along the laser. The thickness of the asphalt is the height of the movable block 201 displayed on the display panel 102, thereby meeting the requirements for construction in tunnels with narrow space and insufficient light, and ensuring the accuracy of the construction work.

[0047] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A laser scanning device for asphalt paving construction, comprising a housing (1), characterized in that: The invention also comprises an adjusting column (2), wherein the adjusting column (2) is located inside the box body (1), a sleeve (207) is arranged outside the adjusting column (2), a moving block (201) is arranged outside the sleeve (207), guide rods (202) are arranged at both ends of the moving block (201), and a laser emitter (203) is arranged at one end of the guide rod (202); a mounting plate (101) is arranged on one side of the box body (1), a display panel (102), a laser control panel (103), a bubble level (104) and a foot control panel (105) are arranged on the side of the mounting plate (101); a fixing plate (106) is arranged below the box body (1), a foot (3) is arranged below the fixing plate (106), and a scale line is arranged on the side of the display panel (102).

2. The laser scanning device for asphalt paving construction according to claim 1, characterized in that: The surface of the adjusting column (2) is provided with a threaded wall, the sleeve (207) is threadedly connected to the adjusting column (2), a first motor (204) is provided on the side of the moving block (201), the first motor (204) is axially connected to one end of the guide rod (202), and a limiting plate (2072) is provided at the lower end of the sleeve (207).

3. The laser scanning device for asphalt paving construction according to claim 1, characterized in that: A second motor (205) is disposed on one side of the moving block (201); a driving wheel (2051) is disposed at the upper end of the second motor (205); a driven wheel (2071) is disposed at the upper end of the sleeve (207); the driving wheel (2051) is connected to the shaft of the second motor (205); and the driving wheel (2051) and the driven wheel (2071) are connected via a belt (206).

4. The laser scanning device for asphalt paving construction according to claim 1, characterized in that: The fixed plate (106) is a hollow rectangular parallelepiped structure with an open bottom. An electric telescopic rod (305) is arranged inside the fixed plate (106). A slideway (3042) is arranged on the inner wall of the fixed plate (106). A slider (304) is arranged at one end of the electric telescopic rod (305). A support rod (303) is arranged at one end of the slider (304). A slide groove (3041) is arranged on the side of the slider (304).

5. The laser scanning device for asphalt paving construction according to claim 4, characterized in that: A positioning plate (301) is arranged on the top of the foot (3), a guide column (302) is arranged on the top of the positioning plate (301), one end of the support rod (303) is connected to the axis of the positioning plate (301), the other end of the support rod (303) is connected to the axis of the slider (304), and a guide sleeve (3021) is arranged outside the guide column (302), and the guide sleeve (3021) is fixed to the bottom of the box body (1).

6. A method for asphalt paving construction in a tunnel, implemented based on a laser scanning device for asphalt paving construction according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1. Adjust and modify the local position of the original paver; S2, placing the box (1) on the construction section, and adjusting the heights of the two feet (3) until the bubble level (104) is in a horizontal state; S3, adjusting the height of the moving block (201) according to the construction design drawing, and adjusting the angle of the laser emitted by the laser emitter (203) until the laser is parallel to the construction ground; S4. The paver performs asphalt paving operations on the construction section along the laser, and the asphalt thickness is the height of the moving block (201) displayed on the display panel (102).

7. The asphalt paving construction method in a tunnel according to claim 6, characterized in that: The step S1 of adjusting and modifying the local position of the original paver includes the following steps: S101, cut the upper roof of the paver and lower the height of the smoke exhaust port; S102, converting the original crawler wheels of the paver into two guide tires at the front end and two drive tires at the rear end; S103, installing anglers on the wheel axles of the two guide tires.

Images