Fabricated pavement rapid paving construction technology based on rapid intelligent construction

Abstract

The application provides a kind of based on the quick wisdom construction assembly pavement quick paving construction technology, it is related to pavement construction technical field, including the following steps, S1: reference line measurement and placement;S2: pavement board operation, the rebate joint on pavement board is brushed pitch, and the force bar on pavement board is polished;S3: pavement board paving, and the force bar at the board joint of adjacent pavement board is welded;S4: longitudinal multiple pavement board paving is carried out after board bottom plugging, and the board bottom layer is grouted;S5: adjacent rebate joint grouting;S6: board joint shaping, pavement caulking and pavement cleaning.The application is by using assembly pavement board, construction speed is fast, construction procedure is simple, cost is relatively low, and application range is also quite extensive, is suitable for new road, old road maintenance and reconstruction, temporary road erection and a variety of use conditions.

Description

Technical Field

[0001] This invention relates to the field of road construction technology, and in particular to a prefabricated pavement rapid paving construction process based on rapid intelligent construction. Background Technology

[0002] Currently, the roads and existing highways built in China are mainly made of cement concrete or asphalt. Cement concrete and asphalt pavements are rigid pavements, primarily using cement concrete / asphalt as the surface layer. Due to their high strength, water stability, good durability, and low maintenance costs, they are widely used in transportation roads. However, they also have disadvantages such as delayed access to traffic and difficulty in repair.

[0003] Cement concrete pavement and asphalt pavement are expensive to construct and take a long time to build. In addition, after a long period of use, common defects such as misalignment, broken slabs, and through cracks are prone to appear. These defects are mainly concentrated in areas with frequent rutting, uneven settlement of the base layer, and poor joint treatment. Therefore, the pavement slabs in these areas need to be replaced, repaired, and reinforced. Replacement and repair are costly and the procedures are relatively complicated. Summary of the Invention

[0004] This invention provides a rapid prefabricated pavement paving construction process based on rapid intelligent construction to solve the problems mentioned in the background art.

[0005] To address the aforementioned technical problems, this invention discloses a rapid prefabricated pavement paving construction process based on rapid intelligent construction, comprising the following steps: S1: baseline surveying and setting out; S2: pavement panel rotation, applying asphalt to the tongue-and-groove joints on the pavement panels, and grinding the dowel bars on the pavement panels; S3: pavement panel installation, and welding the dowel bars at the joints between adjacent pavement panels; S4: sealing the bottom of the pavement panels after longitudinal installation of multiple pavement panels, and grouting the bottom layer of the panels; S5: grouting adjacent tongue-and-groove joints; S6: joint shaping, pavement grouting, and road surface cleaning.

[0006] Preferably, in step S1, a total station is used to lay out the site. First, the longitudinal baseline and the transverse baseline are measured. Based on the longitudinal baseline, the longitudinal control lines of the track panel are measured in sequence at 2.5m intervals. Then, based on the transverse baseline, the transverse control lines of the track panel are measured in sequence at 5m intervals. The control lines are marked on the ground in sequence with a chalk line.

[0007] Preferably, in step S2, when applying asphalt to the tongue and groove joints on the pavement panel, it is necessary to first clean the edges and cross-sections of the tongue and groove joints with a wire brush, and the tongue and groove joints are provided with several grouting grooves and several tie rods, with the tie rods corresponding to the grouting grooves.

[0008] Preferably, in step S3, when the pavement panel is laid, the bottom of the pavement panel needs to meet the requirement of 2-3cm grout thickness, and each corner of the panel needs to be equipped with a pad for elevation adjustment. The pad is a combination of steel pad and plastic pad.

[0009] Preferably, the pavement panel has four evenly distributed lifting holes. A crane is used to lift the pavement panel with a special lifting frame and move it to the corresponding paving position. According to the longitudinal and transverse control baseline, steel rods are used to pull the line. Before the pavement panel is settled, a special pry bar is used to make a fine adjustment of the position. Then the rope is lowered and the pavement panel is paved in place.

[0010] Preferably, in step S4, the raw materials for grouting include emulsified asphalt and ordinary grouting mortar. The grout mix ratio is ordinary grouting mortar: emulsified asphalt: water = 1500kg: 50kg: 320-350kg. Then, the emulsified asphalt, ordinary grouting mortar and water are added to the mixing device in proportion for mixing.

[0011] Before grouting, a layer of geotextile needs to be laid on the pavement slab to protect the surface layer. Four PVC pipes with an outer diameter of 24mm are inserted into four lifting holes at a height of 0.5m, without being blocked, as venting holes. Grouting holes are also provided on the pavement slab.

[0012] Preferably, several welding grooves are provided at the joints between adjacent pavement panels, and force transmission rods are provided on the welding grooves. Adjacent force transmission rods are welded together by steel bars.

[0013] Preferably, the mixing device includes several support rods, a mixing box is fixedly mounted on the support rods, a first funnel is embedded and fixedly mounted on the upper side wall of the mixing box, a discharge port is provided at the lower end of the first funnel, a second funnel is provided below the discharge port, a stirring box is fixedly mounted on the lower inner wall of the mixing box, the second funnel is fixedly mounted on the stirring box, a fixed water inlet pipe is embedded and fixedly mounted on the upper side wall of the mixing box, a bent pipe is connected to the lower end of the water inlet pipe, the outlet end of the bent pipe points to the second funnel, and a bent plate is also fixedly mounted on the right side wall of the mixing box, the bent plate is located below the discharge port.

[0014] Preferably, a support plate is connected to several support rods, a first pad is fixedly mounted on the support plate, a drive motor is mounted on the first pad, a multi-faceted shaft is fixedly connected to the left output end of the drive motor, a second pad is also fixedly mounted on the support plate, an electric telescopic component is fixedly mounted on the second pad, an inner ribbed sleeve is rotatably connected to the right output end of the electric telescopic component, the multi-faceted shaft cooperates with the inner ribbed sleeve, a stabilizing plate is also fixedly mounted on the support plate, the inner ribbed sleeve slides through the stabilizing plate, a first bevel gear and a second bevel gear are also fixedly mounted on the inner ribbed sleeve, and the diameter of the second bevel gear is larger than the diameter of the first bevel gear; a stirring rod is provided inside the mixing box, several stirring blades are fixedly mounted on the stirring rod, the stirring rod extends downward out of the mixing box, and the stirring rod is slidably and sealingly connected to the mixing box and the extension position of the mixing box, a third bevel gear is fixedly mounted at the lower end of the stirring rod;

[0015] The stirring rod extends upward into the second funnel, and the stirring rod is slidably connected to the extension position of the second funnel. The second funnel is also equipped with spiral blades, and the diameter of the spiral blades decreases from top to bottom.

[0016] Preferably, a raised ring is fixedly provided on the stirring rod, and a return spring is rotatably provided on the raised ring. The other end of the return spring is fixedly connected to the lower inner wall of the mixing box.

[0017] A discharge rigid pipe is fixedly installed through the mixing tank, extending out of the mixing tank and fixedly connected to the extension position of the mixing tank. A discharge hose is fixedly connected to the lower end of the discharge rigid pipe.

[0018] An auxiliary rod is fixedly installed on the lower side wall of the mixing box, a protruding block is fixedly installed on the protruding ring, a vibrating rod is installed through the auxiliary rod, a torsion spring is installed on the vibrating rod, the torsion spring is located at the through position of the vibrating rod and the auxiliary rod, the protruding block cooperates with the vibrating rod, a vibrating head is fixedly installed on the right side of the vibrating rod, and the vibrating head cooperates with the discharge hard pipe.

[0019] In step S4, during the grouting process of the bottom layer of the slab, a degassing device is inserted into the grouting hole to degas the grout in the bottom layer of the slab. The degassing device includes a handle, a rotary motor fixedly mounted on the handle, a first rotary rod fixedly connected to the lower output end of the rotary motor, a liquid level sensor mounted on the first rotary rod, the liquid level sensor being electrically connected to the rotary motor, a second rotary rod slidably mounted inside the first rotary rod, a buoyancy block and a movable box vertically slidably mounted on the second rotary rod, a first spring fixedly mounted on the lower side of the buoyancy block, a movable box fixedly connected to the lower end of the first spring, a plurality of first connecting rods hinged to the movable box, and a plurality of second connecting rods hinged to the buoyancy block. The first connecting rods and the second connecting rods correspond one-to-one, and the first connecting rods are hinged to the center position of the second connecting rods.

[0020] Preferably, a third rotating rod is slidably disposed inside the second rotating rod. The third rotating rod is disposed inside the movable box and slides vertically downward through the movable box. A T-shaped rod is fixedly connected to the lower end of the third rotating rod. A single arc head is fixedly disposed on the third rotating rod, and a double arc head is vertically slidably disposed on the third rotating rod. An arc-shaped opening is disposed on the lower surface of the movable box. Fixed tubes are also symmetrically fixedly disposed on the left and right sides inside the movable box. Wedge blocks are slidably disposed inside the fixed tubes. An auxiliary rod is fixedly disposed at the ends of the wedge blocks that are far apart from each other. The auxiliary rods slide out of the movable box, and a stop block is disposed on the side of the auxiliary rods that are far apart from each other. A second spring is also sleeved on the auxiliary rod. One end of the second spring is fixedly connected to the wedge block, and the other end of the second spring is fixedly connected to the inner wall of the movable box. The elastic force of the second spring is less than that of the first spring.

[0021] Preferably, a fixing plate is also fixed on the second rotating rod, and a fixing tube is fixed at the lower end of the fixing plate. A hollow tube is installed inside the fixing tube. The second rotating rod is fixedly inserted through the fixing plate and extends into the hollow tube. An iron core is covered on the second rotating rod and is slidably connected to the hollow tube. A horizontal through groove is provided on the hollow tube, and a shaped block is slidably installed in the through groove. An inclined groove is also provided on the iron core and the second rotating rod. The shaped block passes through the inclined groove and cooperates with the inclined groove. A solenoid is fixed at the lower end of the hollow tube, and a touch switch is installed inside the solenoid. The solenoid is electrically connected to the touch switch. An installation tube is fixed at the lower end of the solenoid, and a third spring is fixed on the installation tube. A drive frame is also slidably installed inside the hollow tube and is slidably connected to the inner wall of the hollow tube. A buoyancy block is fixedly connected to the lower end of the drive frame. A centrally symmetrical trapezoidal block is also provided on the drive frame, and the two ends of the trapezoidal block cooperate with the shaped block. A metal block is also fixed on the lower inner wall of the drive frame. The second rotating rod slides downward through the drive frame.

[0022] Compared with the prior art, the present invention provides a prefabricated pavement rapid paving construction process based on rapid intelligent construction, which has the following beneficial effects: The present invention adopts prefabricated pavement panels, which has a fast construction speed, simple construction procedures, low cost, and a wide range of applications, and is suitable for various uses such as new roads, maintenance and renovation of old roads, and temporary road construction. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0024] Figure 1 This is a schematic diagram of the structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the structure of the slide panel of the present invention;

[0026] Figure 3 For the present invention Figure 2 Side view;

[0027] Figure 4 This is a schematic diagram of the welding of the force transmission rod of the present invention;

[0028] Figure 5 This is a schematic diagram of the mixing device of the present invention. Figure 1 ;

[0029] Figure 6 This is a schematic diagram of the mixing device of the present invention. Figure 2 ;

[0030] Figure 7 For the present invention Figure 6 Enlarged view of part of the structure;

[0031] Figure 8 This is a schematic diagram of the overall structure of the air outlet device of the present invention;

[0032] Figure 9 This is a schematic diagram of the air outlet device of the present invention. Figure 1 ;

[0033] Figure 10 This is a schematic diagram of the air outlet device of the present invention. Figure 2 ;

[0034] Figure 11 This is a schematic diagram of the air outlet device of the present invention. Figure 3 .

[0035] In the diagram: 1. Pavement panel; 2. Lifting hole; 3. Grouting hole; 4. Tongue and groove joint; 5. Grouting groove; 6. ...; 7. Pad plate; 8. Welding groove; 9. Dowel bar; 10. Reinforcing bar; 11. Mixing box; 12. Bent pipe; 13. Water inlet pipe; 14. First funnel; 15. Drain outlet; 16. Bent plate; 17. Second funnel; 18. Mixing blade; 19. Support rod; 20. Mixing box; 21. Mixing rod; 22. Return spring; 23. Raised ring; 24. Electric telescopic component; 25. Impact box; 26. Second pad block; 27. Stabilizing plate; 28. Second bevel gear; 29. ​​First bevel gear; 30. Inner rib sleeve; 31. Multi-faceted shaft; 32. First pad block; 33. Drive motor; 34. Discharge hose; 35. ... 36. Third bevel gear; 37. Discharge hard pipe; 38. Spiral blade; 39. Vibrating head; 40. Protrusion block; 41. Vibrating rod; 42. Rotary motor; 43. Handle rod; 44. Second rotating rod; 45. Fixed pipe; 46. Buoyancy block; 47. Second connecting rod; 48. Moving box; 49. First connecting rod; 50. First rotating rod; 51. Liquid level sensor; 52. Third rotating rod; 53. Fixed pipe; 54. Stop block; 55. Second spring; 56. Wedge block; 57. T-shaped rod; 58. Double arc head; 59. Auxiliary rod; 60. Single arc head; 61. First spring; 62. Third spring; 63. Drive frame; 64. Mounting pipe; 65. Hollow tube; 66. Irregular block; 67. Iron core; 68. Solenoid. Detailed Implementation

[0036] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0037] Furthermore, in this invention, the use of terms such as "first" and "second" is for descriptive purposes only and does not specifically refer to any order or sequence, nor is it intended to limit the invention. They are merely used to distinguish components or operations described using the same technical terms and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions and features of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If a combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0038] Example 1

[0039] Embodiments of the present invention provide a rapid prefabricated pavement paving construction process based on rapid intelligent construction, such as... Figure 1-4As shown, the process includes the following steps: S1: laying out the baseline; S2: rotating the pavement panel 1, applying asphalt to the tongue and groove joints 4 on the pavement panel 1, and grinding the dowel bars 9 on the pavement panel 1; S3: laying the pavement panel 1, and welding the dowel bars 9 at the joints of adjacent pavement panels 1.

[0040] S4: After the longitudinal multi-slab pavement 1 is laid, the bottom of the slab is sealed and grout is injected into the bottom layer of the slab; S5: Grouting is performed on the adjacent tongue and groove joints; S6: Slab joint shaping, pavement filling and road surface cleaning.

[0041] The working principle and beneficial effects of the above technical solution are as follows: First, the baseline is measured and laid out; second, the pavement panel 1 is rotated, the tongue and groove joints 4 on the pavement panel 1 are coated with asphalt, and the dowel bars 9 on the pavement panel 1 are ground; third, the pavement panel 1 is laid, and the dowel bars 9 at the joints of adjacent pavement panels 1 are welded; fourth, after the longitudinal pavement panels 1 are laid, the bottom of the panels is sealed, and the bottom layer of the panels is grouted; fifth, the adjacent tongue and groove joints are grouted; sixth, the joints are shaped, the pavement is filled, and the road surface is cleaned. This invention, by adopting prefabricated pavement panels, has a fast construction speed, simple construction procedures, low cost, and a wide range of applications, suitable for various uses such as new roads, maintenance and renovation of old roads, and temporary road construction.

[0042] Example 2

[0043] Based on the above embodiment 1, as follows Figure 1-4 As shown, in step S1, a total station is used to lay out the site. First, the longitudinal baseline and the transverse baseline are measured. Based on the longitudinal baseline, the longitudinal control lines of the track panel 1 are measured in sequence at 2.5m intervals. Then, based on the transverse baseline, the transverse control lines of the track panel 1 are measured in sequence at 5m intervals. The control lines are marked on the ground in sequence with a chalk line.

[0044] Preferably, in step S2, when applying asphalt to the tongue and groove joint 4 on the pavement panel 1, the corners and cross-sections of the tongue and groove joint 4 need to be cleaned with a wire brush first, and the tongue and groove joint 4 is provided with a number of grouting grooves 5 and a number of tie rods 6, with the tie rods 6 corresponding to the grouting grooves 5.

[0045] Ordinary asphalt is used, and it is applied in 1-2 coats with a brush, with a thickness of 1-2 mm. During the application process, care should be taken to protect the tie rod 6 and the pavement surface to prevent asphalt from adhering and causing pollution.

[0046] Preferably, in step S3, when the pavement panel 1 is laid, the bottom of the pavement panel 1 needs to meet the requirement of a grouting thickness of 2-3 cm, and each corner of the panel needs to be equipped with a pad 7 for elevation adjustment. The pad 7 adopts a combination of steel pad and plastic pad. On the one hand, the bottom steel pad is easy to fix, and on the other hand, the upper plastic pad can undergo plastic deformation to protect the corner of the panel.

[0047] The elevation of each corner of the plate is adjusted by using pads of different thicknesses according to the design elevation. The thickness of the pads 7 ranges from 1mm to 20mm. The pads 7 of different specifications and sizes are selected according to the actual location on site. The sizes are mainly divided into four types: 100mm*100mm, 200mm*100mm, 200mm*200mm, and 300mm*300mm.

[0048] Preferably, the pavement panel 1 is provided with 4 evenly distributed lifting holes 2. A crane is used to lift the pavement panel 1 with a special lifting frame and move it to the corresponding paving position. According to the longitudinal and transverse bidirectional control baseline, steel rods are used to pull the line. Before the pavement panel 1 is settled, a special pry bar is used to make a fine adjustment of the position. Then the rope is lowered and the pavement panel 1 is paved in place.

[0049] After the pavement panel 1 is hoisted into place, there may be a height difference of 2-3mm between adjacent panels. Use a pry bar to lift the corner of the panel using the lever principle, and use a thin plastic pad to make local fine adjustments to the elevation to meet the height difference requirements between adjacent panels.

[0050] The width of the joint between the panels is controlled by width limiting clips. The limiting clips are made of 8mm thick steel plate, ground and processed into 7mm thick "L" shaped angle steel. When hoisting adjacent panels, the limiting clips are placed on the edge of the already laid panel that is adjacent to the panel to be laid, to control the width of the joint. Two limiting clips are symmetrically arranged for the short side, and three limiting clips are evenly spaced for the long side. The limiting clips at both ends are about 30cm away from the edge of the panel. The purpose is to prevent the panel corners from tilting and the joint width from being inconsistent if the limiting clips are not evenly arranged.

[0051] Preferably, in step S4, the raw materials for grouting include emulsified asphalt and ordinary grouting mortar, and the grouting material mix ratio is ordinary grouting mortar: emulsified asphalt: water = 1500kg: 50kg: 320-350kg. Then, the emulsified asphalt, ordinary grouting mortar and water are added to the mixing device in proportion for mixing.

[0052] Before grouting, a layer of geotextile is laid on the pavement panel 1 to protect the surface layer. Four PVC pipes with an outer diameter of 24mm are inserted into the four lifting holes 2 at a height of 0.5m, without being blocked, and used as venting holes. Grouting holes 3 are also provided on the pavement panel 1.

[0053] During the grouting process, the height of the grout in the lifting hole is observed, and the final grouting thickness at the bottom of the slab is measured using a grouting thickness measuring caliper. The caliper is made of galvanized round steel with a diameter of 20mm and a length of 30cm. It is marked with 10mm precision from bottom to top and then painted red. A movable buckle is attached to the caliper. When measuring the grouting thickness, the "0" mark is inserted into the lifting hole (inspection hole) until it reaches the base surface. The caliper is then secured parallel to the slab surface, and the value 'a' (bottom gap + slab thickness) is read directly. The slab thickness (20cm) is then subtracted from the reading 'a'. 'a-20' is the grouting thickness. When the grouting thickness at the bottom of the slab is ≥ a-20, the grouting thickness meets the standard. To ensure a grouting filling rate of ≥95%, an over-grouting of 1cm is allowed.

[0054] After the thickness meets the requirements and the bottom of the slab is filled densely, a 50cm high PVC pipe is installed at grouting port 3 to continue grouting. This is to prevent grout from overflowing during the grouting process and contaminating the paving panel 1. Grout is added until the grout in the PVC pipe at the lifting hole 2 exceeds the surface of the paving panel by 2-3cm. After initial setting, the PVC pipe at the lifting hole is removed, and the grout column above the slab surface is cut off. The grout is then ground down to 2-3mm below the slab surface using an angle grinder to maintain an aesthetically pleasing appearance with the surrounding slab surfaces.

[0055] After the grout at the bottom of the slab has solidified, proceed with the grouting at grouting port 3. Do not inject grout before it has solidified, as this will cause the grout at the bottom, which is about to solidify, to move and affect the grouting effect at the bottom of the slab. Use slab bottom grouting material and inject it to a depth of 2-3mm below the top of the slab. Before initial setting, roughen the surface to ensure it is consistent with the surrounding area.

[0056] Preferably, several welding grooves 8 are provided at the joints of adjacent pavement panels 1, and force transmission rods 9 are provided on the welding grooves 8. Adjacent force transmission rods 9 are welded together by steel bars 10.

[0057] To prevent grout from overflowing along the slab joints during the bottom slab grouting process, which could submerge and contaminate the dowel bars 9, and make welding of the dowel bars 9 impossible, and because the grooves in the pavement panels 1 are narrow after assembly, making processing difficult, the galvanized coating of the dowel bars 9 must be removed before panel assembly. Before grouting the bottom of the slab after sealing the joints, the dowel bars 9 must be welded together. Because the positional accuracy of the dowel bars 9 is not high during panel prefabrication, and the gaps between the dowel bars 9 are inconsistent, welding is performed using Grade I plain round steel bars with diameters of 8mm, 10mm, 12mm, and 16mm.

[0058] In step S5, the bottom of the slab is sealed by adding water to the tongue and groove high-strength grout and mixing it into a dry hard mortar. The sealing length should be 4-5cm. The sealing effect is good and the sealing surface is neat and beautiful. Since the sealing material is the same as the grouting material, the integrity can be guaranteed after grouting.

[0059] The raw material for grouting is high-strength tongue-and-groove grout, with a mixing ratio of high-strength tongue-and-groove grout: water = 1500kg: 250kg. The feeding sequence is as follows: water and high-strength tongue-and-groove grout are added to the mixing unit simultaneously. Water is used to reduce dust in the mixer. After all the high-strength tongue-and-groove grout has been added, the mixer is stirred at high speed for 3 minutes. Because the quantity used is small, grouting can be carried out after one area is completed, or multiple areas can be grouted simultaneously to avoid wasting time through multiple material mixing operations.

[0060] After the precast pavement slabs are laid, the spacing between the longitudinal and transverse construction joints is small, making grouting inconvenient. To facilitate construction, 3-4 V-shaped tongue-and-groove grouting funnels (18cm long * 2.5cm wide) are made from 2-3mm thick thin steel plates for grouting. Multiple teams work together to grout the tongue-and-groove joints, speeding up the construction process while controlling grout leakage. The grouting height is controlled at 3-4cm from the top of the slab.

[0061] Example 3

[0062] Based on the above embodiments 1-2, as follows Figure 5-7 As shown, the mixing device includes several support rods 19, a mixing box 11 is fixedly mounted on the support rods 19, a first funnel 14 is embedded and fixedly mounted on the upper side wall of the mixing box 11, a discharge port 15 is provided at the lower end of the first funnel 14, a second funnel 17 is provided below the discharge port 15, a stirring box 20 is fixedly mounted on the lower inner wall of the mixing box 11, the second funnel 17 is fixedly mounted on the stirring box 20, a water inlet pipe 13 is embedded and fixedly mounted on the upper side wall of the mixing box 11, a bent pipe 12 is connected through the lower end of the water inlet pipe 13, the outlet end of the bent pipe 12 points to the second funnel 17, a bent plate 16 is also fixedly mounted on the right side wall of the mixing box 11, the bent plate 16 is located below the discharge port 15.

[0063] Preferably, a support plate is connected to several support rods 19. A first pad 32 is fixedly provided on the support plate. A drive motor 33 is provided on the first pad 32. A multi-faceted shaft 31 is fixedly connected to the left output end of the drive motor 33. A second pad 26 is also fixedly provided on the support plate. An electric telescopic component 24 is fixedly provided on the second pad 26. An inner ribbed sleeve 30 is rotatably connected to the right output end of the electric telescopic component 24. The multi-faceted shaft 31 cooperates with the inner ribbed sleeve 30. A stabilizing plate 27 is also fixedly provided on the support plate. The inner ribbed sleeve 30 slides through the stabilizing plate 27. A first bevel gear 29 and a second bevel gear 28 are also fixedly provided on the inner ribbed sleeve 30. The diameter of the second bevel gear 28 is larger than the diameter of the first bevel gear 29. A stirring rod 21 is provided inside the mixing box 20. Several stirring blades 18 are fixedly provided on the stirring rod 21. The stirring rod 21 extends downward out of the mixing box 11. The stirring rod 21 is slidably connected to the stirring box 20 and the extension position of the mixing box 11. A third bevel gear 35 is fixedly provided at the lower end of the stirring rod 21.

[0064] The stirring rod 21 extends upward into the second funnel 17, and the stirring rod 21 is slidably connected to the extension position of the second funnel 17. The second funnel 17 is also provided with a spiral blade 37, and the blade diameter of the spiral blade 37 decreases from top to bottom.

[0065] Preferably, a raised ring 23 is fixedly provided on the stirring rod 21, and a return spring 22 is rotatably provided on the raised ring 23. The other end of the return spring 22 is fixedly connected to the lower inner wall of the mixing box 11.

[0066] A discharge hard pipe 36 is fixedly installed through the mixing tank 20. The discharge hard pipe 36 extends out of the mixing tank 11 and is fixedly connected to the extension position of the mixing tank 11. A discharge hose 34 is fixedly connected to the lower end of the discharge hard pipe 36.

[0067] An auxiliary rod 25 is fixedly installed on the lower side wall of the mixing box 11, and a protruding block 39 is fixedly installed on the protruding ring 23. A vibrating rod 40 is installed through the auxiliary rod 25, and a torsion spring is installed on the vibrating rod 40. The torsion spring is located at the through position between the vibrating rod 40 and the auxiliary rod 25. The protruding block 39 cooperates with the vibrating rod 40. A vibrating head 41 is also fixedly installed on the right side of the vibrating rod 40. The vibrating head 41 cooperates with the discharge hard pipe 36.

[0068] A valve is installed on the discharge rigid pipe 36.

[0069] The working principle and beneficial effects of the above technical solution are as follows: Emulsified asphalt and ordinary grouting mortar are put into the first funnel 14, the material will flow out from the discharge port 15, and then the material will fall onto the bend 16 and be dispersed. At this time, water flows into the second funnel 17 through the water inlet pipe 13 and the bend pipe 12. When it flows into the second funnel 17, it will meet the dispersed material.

[0070] At this time, the drive motor 33 is turned on, which drives the polygonal shaft 31 to rotate. The polygonal shaft 31 drives the inner sleeve 30 to rotate, and the inner sleeve 30 drives the first bevel gear 29 to rotate. At this time, the first bevel gear 29 meshes with the third bevel gear 35. The first bevel gear 29 drives the third bevel gear 35 to rotate, and the third bevel gear 35 drives the stirring rod 21 to rotate. The rotation of the stirring rod 21 drives the spiral blade 37 to rotate. The spiral blade 37 will cause the material entering the second funnel 17 to slowly enter the mixing box 20, making the mixing effect better. At the same time, the stirring rod 21 drives the stirring blade 18 to rotate, and the stirring blade 18 stirs the material in the mixing box 20.

[0071] When the stirring rod 21 rotates, it drives the raised ring 23 to rotate, which in turn drives the raised block 39 to rotate. When the raised block 39 engages with the vibrating rod 40, the vibrating rod 40 deflects. When the raised block 39 does not engage with the vibrating rod 40, the vibrating rod 40 returns to its original position under the action of the torsion spring. The vibrating rod 40 drives the vibrating head 38 to strike the discharge hard pipe 36, making the slurry fall faster after stirring. It also prevents slurry from sticking to the inner wall of the discharge hard pipe 36, effectively improving the practical performance of the device.

[0072] When the stirring speed needs to be adjusted (to speed up stirring), activate the electric telescopic component 24. The electric telescopic component 24 moves the inner ribbed sleeve 30 to the right, and the multi-faceted shaft 31 slides within the inner ribbed sleeve 30. At this time, the raised ring 23 can be pushed upward, causing the third bevel gear 35 to disengage from its meshing position with the first bevel gear 29. When the second bevel gear 28 moves to the appropriate position (i.e., the position where the second bevel gear 28 can mesh with the third bevel gear 35), slowly release the raised ring 23. The third bevel gear 35 descends, and at this time, the third bevel gear 35 meshes with the second bevel gear 28. Then, the second bevel gear 28 drives the third bevel gear 35 to rotate, and the third bevel gear 35 drives the stirring rod 21 to rotate. The stirring rod 21 drives the stirring blade 18 to rotate, thus stirring the material in the mixing tank 20. (Whether the first bevel gear 29 meshes with the third bevel gear 35 or the second bevel gear 28 meshes with the third bevel gear 35, the raised ring 23 is always in a position where it can mesh with the rack 39 at any time.)

[0073] After stirring for a period of time (the time can be adjusted by the user), open the valve on the discharge hard pipe 36, and the stirred slurry will flow out after passing through the discharge hard pipe 36 and the discharge hose 34;

[0074] By setting two bevel gears of different sizes, the rotation speed of the stirring rod 21, i.e. the stirring speed of the stirring blade 18, can be effectively adjusted, resulting in higher stirring efficiency and better stirring effect. The setting of the bending plate 16 disperses the material, making it easier to mix in subsequent processes. The stirring can be completed by starting a drive motor 33, with slow feeding and faster discharge, making it highly practical and functional.

[0075] Example 4

[0076] Based on the above embodiments 1-3, such as Figure 8-11As shown, in step S4, during the grouting process of the bottom layer of the slab, a degassing device is inserted into the grouting hole 3 to degas the grout in the bottom layer of the slab. The degassing device includes a handle 42, a rotary motor 41 fixedly mounted on the handle 42, a first rotary rod 49 fixedly connected to the lower output end of the rotary motor 41, a liquid level sensor 50 mounted on the first rotary rod 49, the liquid level sensor 50 being electrically connected to the rotary motor 41, a second rotary rod 43 slidably mounted inside the first rotary rod 49, a buoyancy block 45 and a movable box 47 vertically slidably mounted on the second rotary rod 43, a first spring 60 fixedly mounted on the lower side of the buoyancy block 45, the lower end of the first spring 60 being fixedly connected to the movable box 47, a plurality of first connecting rods 48 hinged to the movable box 47, and a plurality of second connecting rods 46 hinged to the buoyancy block 45. The first connecting rods 48 and the second connecting rods 46 correspond one-to-one, and the first connecting rods 48 are hinged to the center position of the second connecting rods 46.

[0077] Preferably, a third rotating rod 51 is slidably disposed inside the second rotating rod 43. The third rotating rod 51 is disposed inside the movable box 47 and slides vertically downward through the movable box 47. A T-shaped rod 56 is fixedly connected to the lower end of the third rotating rod 51. A single arc head 59 is fixedly disposed on the third rotating rod 51, and a double arc head 57 is vertically slidably disposed on the third rotating rod 51. An arc-shaped opening is provided on the lower surface of the movable box 47. Fixed tubes 52 are also symmetrically fixedly disposed on both sides inside the movable box 47. Wedge blocks 55 are slidably disposed inside the fixed tubes 52. An auxiliary rod 58 is fixedly disposed at one end of the wedge blocks 55 that is far apart from each other. The auxiliary rods 58 slide out of the movable box 47, and a stop block 53 is provided on one side of the auxiliary rods 58 that is far apart from each other. A second spring 54 is also sleeved on the auxiliary rod 58. One end of the second spring 54 is fixedly connected to the wedge block 55, and the other end of the second spring 54 is fixedly connected to the inner wall of the movable box 47. The elastic force of the second spring 54 is less than the elastic force of the first spring 60.

[0078] Preferably, a fixing plate is fixedly mounted on the second rotating rod 43, and a fixing tube 44 is fixedly mounted on the lower end of the fixing plate. A hollow tube 64 is installed inside the fixing tube 44. The second rotating rod 43 extends through the fixing plate and into the hollow tube 64. An iron core 66 is covered on the second rotating rod 43 and is slidably connected to the hollow tube 64. A horizontal through groove is provided on the hollow tube 64, and a shaped block 65 is slidably mounted in the through groove. An inclined groove is also provided on the iron core 66 and the second rotating rod 43, through which the shaped block 65 passes and cooperates with the inclined groove. A fixed part is installed at the lower end of the hollow tube 64. A solenoid 67 is provided, and a touch switch is provided inside the solenoid 67. The solenoid 67 is electrically connected to the touch switch. A mounting tube 63 is fixedly provided at the lower end of the solenoid 67. A third spring 61 is fixedly provided on the mounting tube 63. A drive frame 62 is also slidably provided inside the hollow tube 64. The drive frame 62 is slidably connected to the inner wall of the hollow tube 64. A buoyancy block is fixedly connected to the lower end of the drive frame 62. A centrally symmetrical trapezoidal block is also provided on the drive frame 62. The trapezoidal block and the irregular block 65 are matched at both ends. A metal block is also fixed on the lower inner wall of the drive frame 62. The second rotating rod 43 slides downward through the drive frame 62.

[0079] The working principle and beneficial effects of the above technical solution are as follows: The first rotating rod 49 is inserted into the grouting hole 3. At this time, the top of the first rotating rod 49 is a certain distance away from the precast track panel (that is, the total length of the degassing device is relatively long, and there is still a certain distance after it is fully inserted into the grouting hole 3). Therefore, the first rotating rod 49 can play the role of guiding the grout. When the degassing device contacts the ground, that is, when the double arc head 56 contacts the ground, the grip rod 42 is pressed down, the third rotating rod 51 will retract into the second rotating rod 43, the single arc head 59 rises, and the double arc head 57 enters the moving box 47 and contacts the wedge block 55. Then the wedge block 55 will move in the opposite direction, and the fixed tube 52 will be compressed until the wedge block 55 passes the maximum diameter position of the double arc head 57. Under the action of the first spring 60, the moving box 47 will move upward, and the moving box 47 will drive the first connecting rod 48 to open the second connecting rod 46.

[0080] Grouting then begins. During the grouting process, the rotary motor 41 is turned on, which drives the first rotating rod 49 to rotate. The first rotating rod 49 drives the second rotating rod 43 to rotate, and the second rotating rod 43 drives the moving box 47, the third rotating rod 51, the T-shaped rod 56, several first connecting rods 48, and several second connecting rods 46 to stir the grout, reducing the possibility of air bubbles forming in the grout. At the same time, as the amount of grout injected gradually increases, the buoyancy block 45 floats up under the action of buoyancy. The buoyancy block 45 drives the drive frame 62 to move upward. The trapezoidal block on the drive frame 62 cooperates with the irregular block 65, causing the irregular block 65 to move from right to left. The irregular block 65 drives the iron core 66 and the second rotating rod 43 to move downward. As the iron core 66 moves downward, it becomes an electromagnet under the action of the solenoid 67, generating magnetic force on the metal block. This causes the third spring 61 to continue compressing, increasing the length of the iron core 66 inside the solenoid 67. When the iron core 66 contacts the touch switch inside the solenoid 67, the coil loses current, the iron core 66 loses its magnetism, the third spring 61 resets, and the drive frame 62 moves downward. The drive frame 62 then moves the buoyancy block 45 downward, which in turn moves several second connecting rods 46 downward. This vibrates the slurry at the bottom of the plate, further reducing the possibility of air bubbles appearing at the bottom of the plate, effectively improving the practicality and functionality of the device.

[0081] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. If these modifications and variations fall within the scope of the claims of this invention and their equivalents, then this invention is also intended to include these modifications and variations.

Claims

1. A prefabricated pavement rapid paving construction process based on rapid intelligent construction, characterized in that, The process includes the following steps: S1: Baseline surveying and setting out; S2: Operation of the pavement panel (1), application of asphalt to the tongue and groove joints (4) on the pavement panel (1), and grinding of the dowel bars (9) on the pavement panel (1); S3: Paving of the pavement panel (1), and welding of the dowel bars (9) at the joints of adjacent pavement panels (1); S4: Sealing of the bottom of the pavement panels (1) after paving multiple longitudinal pavement panels (1), and grouting of the bottom layer of the pavement panels; S5: Grouting of adjacent tongue and groove joints; S6: Slab joint shaping, pavement joint filling and road surface cleaning; In step S4, during the grouting process of the bottom layer of the slab, a degassing device is inserted into the grouting hole (3) to degas the grout in the bottom layer of the slab. The degassing device includes a handle (42), a rotary motor (41) is fixedly mounted on the handle (42), a first rotating rod (49) is fixedly connected to the lower output end of the rotary motor (41), a liquid level sensor (50) is mounted on the first rotating rod (49), the liquid level sensor (50) is electrically connected to the rotary motor (41), and a second rotating rod is slidably mounted inside the first rotating rod (49). 43) A buoyancy block (45) and a movable box (47) are vertically slidably arranged on the second rotating rod (43). A first spring (60) is fixedly arranged on the lower side of the buoyancy block (45). The lower end of the first spring (60) is fixedly connected to the movable box (47). Several first connecting rods (48) are hinged on the movable box (47). Several second connecting rods (46) are hinged on the buoyancy block (45). The first connecting rods (48) and the second connecting rods (46) correspond one-to-one, and the first connecting rods (48) are hinged at the center position of the second connecting rods (46). A third rotating rod (51) is slidably arranged inside the second rotating rod (43). The third rotating rod (51) is located inside the movable box (47). The third rotating rod (51) slides vertically downward through the movable box (47). A T-shaped rod (56) is fixedly connected to the lower end of the third rotating rod (51). A single arc head (59) is fixedly arranged on the third rotating rod (51). A double arc head (57) is vertically slidably arranged on the third rotating rod (51). An arc-shaped opening is provided on the lower surface of the movable box (47). Fixing tubes (52) are also symmetrically fixedly arranged on the left and right sides inside the movable box (47). A wedge block (55) is slidably disposed inside the tube (52). An auxiliary rod (58) is fixedly disposed at one end of the wedge block (55) that is far apart from each other. The auxiliary rod (58) extends slidably out of the movable box (47). A stop block (53) is disposed on one side of the auxiliary rod (58) that is far apart from each other. A second spring (54) is also sleeved on the auxiliary rod (58). One end of the second spring (54) is fixedly connected to the wedge block (55), and the other end of the second spring (54) is fixedly connected to the inner wall of the movable box (47). The elastic force of the second spring (54) is less than that of the first spring (60). A fixing plate is also fixed on the second rotating rod (43), and a fixing tube (44) is fixed at the lower end of the fixing plate. A hollow tube (64) is installed inside the fixing tube (44). The second rotating rod (43) is fixedly extended through the fixing plate into the hollow tube (64). An iron core (66) is covered on the second rotating rod (43). The iron core (66) is slidably connected to the hollow tube (64). A horizontal through groove is provided on the hollow tube (64). A shaped block (65) is slidably installed in the through groove. An inclined groove is also provided on the iron core (66) and the second rotating rod (43). The shaped block (65) passes through the inclined groove and the shaped block (65) cooperates with the inclined groove. A solenoid (65) is fixed at the lower end of the hollow tube (64). 7) A touch switch is installed inside the solenoid (67). The solenoid (67) is electrically connected to the touch switch. An installation tube (63) is fixedly installed at the lower end of the solenoid (67). A third spring (61) is fixedly installed on the installation tube (63). A drive frame (62) is also slidably installed inside the hollow tube (64). The drive frame (62) is slidably connected to the inner wall of the hollow tube (64). A buoyancy block (45) is fixedly connected at the lower end of the drive frame (62). A centrally symmetrical trapezoidal block is also installed on the drive frame (62). The trapezoidal block and the irregular block (65) are matched at both ends. A metal block is also fixedly installed on the lower inner wall of the drive frame (62). The second rotating rod (43) slides downward through the drive frame (62).

2. The prefabricated pavement rapid paving construction process based on rapid intelligent construction according to claim 1, characterized in that, In step S1, a total station is used to lay out the site. First, the longitudinal baseline and the transverse baseline are measured. Based on the longitudinal baseline, the longitudinal control line of the track panel (1) is measured in sequence at 2.5m intervals. Then, based on the transverse baseline, the transverse control line of the track panel (1) is measured in sequence at 5m intervals. The control lines are marked on the ground in sequence with a chalk line. In step S2, when applying asphalt to the tongue and groove joint (4) on the pavement panel (1), it is necessary to first clean the corners and cross-sections of the tongue and groove joint (4) with a wire brush. The tongue and groove joint (4) is provided with several grouting grooves (5) and several tie rods (6), and the tie rods (6) correspond to the grouting grooves (5).

3. The prefabricated pavement rapid paving construction process based on rapid intelligent construction according to claim 2, characterized in that, In step S3, when the pavement panel (1) is laid, the bottom of the pavement panel (1) needs to meet the requirement of 2-3cm grouting thickness. Each corner of the panel needs to be equipped with a pad (7) for elevation adjustment. The pad (7) adopts a combination of steel pad and plastic pad. Four evenly distributed lifting holes (2) are provided on the pavement panel (1). A crane is used to lift the pavement panel (1) and move it to the corresponding paving position through a special lifting frame. According to the longitudinal and transverse bidirectional control baseline, steel rods are used to pull the line. Before the pavement panel (1) is settled, a special pry bar is used to make a fine adjustment of the position. Then the rope is lowered and the pavement panel (1) is paved in place.

4. The prefabricated pavement rapid paving construction process based on rapid intelligent construction according to claim 3, characterized in that, In step S4, the raw materials for grouting include emulsified asphalt and ordinary grouting mortar. The grouting material mix ratio is ordinary grouting mortar: emulsified asphalt: water = 1500kg: 50kg: 320-350kg. Then, emulsified asphalt, ordinary grouting mortar and water are added to the mixing device in proportion for mixing. Before grouting, a layer of geotextile is laid on the pavement panel (1) to protect the surface layer. Four PVC pipes with an outer diameter of 24mm are inserted into four hoisting holes (2) at a height of 0.5m. They are not blocked and are used as venting holes. Grouting holes (3) are also provided on the pavement panel (1).

5. The prefabricated pavement rapid paving construction process based on rapid intelligent construction according to claim 1, characterized in that, Several welding grooves (8) are provided at the joints of adjacent deck panels (1), and force transmission rods (9) are provided on the welding grooves (8). The adjacent force transmission rods (9) are welded together by steel bars (10). The mixing device includes several support rods (19), a mixing box (11) is fixedly mounted on the support rods (19), a first funnel (14) is fixedly embedded in the upper side wall of the mixing box (11), a discharge port (15) is provided at the lower end of the first funnel (14), a second funnel (17) is provided below the discharge port (15), a stirring box (20) is fixedly mounted on the lower inner wall of the mixing box (11), the second funnel (17) is fixedly mounted on the stirring box (20), a water inlet pipe (13) is fixedly embedded in the upper side wall of the mixing box (11), a bent pipe (12) is connected through the lower end of the water inlet pipe (13), the outlet end of the bent pipe (12) points to the second funnel (17), a bent plate (16) is also fixedly mounted on the right side wall of the mixing box (11), and the bent plate (16) is located below the discharge port (15).

6. The prefabricated pavement rapid paving construction process based on rapid intelligent construction according to claim 5, characterized in that, A support plate is connected to several support rods (19). A first pad (32) is fixedly mounted on the support plate. A drive motor (33) is mounted on the first pad (32). A multi-faceted shaft (31) is fixedly connected to the left output end of the drive motor (33). A second pad (26) is also fixedly mounted on the support plate. An electric telescopic component (24) is fixedly mounted on the second pad (26). An inner ribbed sleeve (30) is rotatably connected to the right output end of the electric telescopic component (24). The multi-faceted shaft (31) cooperates with the inner ribbed sleeve (30). A stabilizing plate (27) is also fixedly mounted on the support plate. The inner ribbed sleeve (30) is rotatably connected to the inner ribbed sleeve (30). The sliding through-stabilizing plate (27) is provided, and the inner sleeve (30) is also fixedly provided with a first bevel gear (29) and a second bevel gear (28), and the diameter of the second bevel gear (28) is larger than the diameter of the first bevel gear (29); the mixing box (20) is provided with a stirring rod (21), and a number of stirring blades (18) are fixedly provided on the stirring rod (21). The stirring rod (21) extends downward out of the mixing box (11), and the stirring rod (21) is sealed and slidably connected with the extension position of the mixing box (20) and the mixing box (11). The lower end of the stirring rod (21) is fixedly provided with a third bevel gear (35). The stirring rod (21) extends upward into the second funnel (17), and the stirring rod (21) is slidably connected to the extension position of the second funnel (17). The second funnel (17) is also provided with a spiral blade (37), and the blade diameter of the spiral blade (37) decreases from top to bottom.

7. The prefabricated pavement rapid paving construction process based on rapid intelligent construction according to claim 6, characterized in that, A raised ring (23) is fixedly provided on the stirring rod (21), and a return spring (22) is rotatably provided on the raised ring (23). The other end of the return spring (22) is fixedly connected to the lower inner wall of the mixing box (11). A discharge hard pipe (36) is fixedly installed through the mixing tank (20). The discharge hard pipe (36) extends out of the mixing tank (11) and is fixedly connected to the extension position of the mixing tank (11). A discharge hose (34) is fixedly connected to the lower end of the discharge hard pipe (36). An auxiliary rod (25) is fixedly installed on the lower side wall of the mixing box (11), a protruding block (39) is fixedly installed on the protruding ring (23), a vibrating rod (40) is installed through the auxiliary rod (25), a torsion spring is installed on the vibrating rod (40), the torsion spring is located at the through position of the vibrating rod (40) and the auxiliary rod (25), the protruding block (39) cooperates with the vibrating rod (40), a vibrating head (38) is fixedly installed on the right side of the vibrating rod (40), and the vibrating head (38) cooperates with the discharge hard pipe (36).

Images