An economic subgrade construction method based on cost reduction and efficiency improvement

Abstract

The application provides an economic roadbed construction method based on cost reduction and efficiency improvement, and belongs to the technical field of civil engineering equipment. The application comprises a supporting frame and a supporting bracket, the top end of the supporting frame is provided with a mounting groove, and the supporting bracket is buckled and mounted in the mounting groove. The first mobile range finder and the second mobile range finder can measure the roadbed before and after rolling during the construction process, the compaction degree of the roadbed is measured by the interval change after the roadbed is rolled, the rolling times are adjusted in time, the construction efficiency is improved, the construction cost is reduced, the situation that the cost is increased due to the repeated excessive rolling of the roadbed is avoided, the mud scraping frame is arranged, the mud scraping frame with the concave arc-shaped top is convenient for scraping and cleaning the outer wall of the rolling roller, the scraped material or soil can be guided during the cleaning process, the material is better cut and crushed, the secondary uniform utilization of the material is facilitated, and the construction cost is reduced.

Description

Technical Field

[0001] This invention relates to the field of civil engineering equipment technology, and in particular to an economical roadbed construction method based on cost reduction and efficiency improvement. Background Technology

[0002] A roadbed is the foundation of a track or pavement, and is an earthwork structure formed through excavation or filling. The main function of a roadbed is to provide the necessary conditions for track or pavement laying and train or vehicle operation, and to bear the static and dynamic loads of the track, locomotives, rolling stock, pavement, and traffic loads. It also transfers and diffuses the loads deeper into the ground. Roadbeds play a crucial role in terms of construction volume, land area, and investment. During roadbed construction, paving and compaction equipment are required. The paving thickness and the number of compaction passes are important factors affecting compaction effectiveness and economy. Traditional roadbed construction methods often neglect the coordination and optimization of these two aspects, leading to poor compaction or excessively high construction costs.

[0003] Compaction equipment compacts roadbed materials using rollers. However, during construction, the outer wall of the rollers easily becomes sticky with roadbed materials, affecting their normal operation. Some compaction equipment that scrapes off roadbed materials cannot distribute the scraped material evenly, resulting in excessive accumulation of fallen material and affecting the compaction thickness. Furthermore, existing compaction equipment cannot monitor the compaction thickness in real time during operation. Therefore, this application provides an economical roadbed construction method based on cost reduction and efficiency improvement to meet the requirements. Summary of the Invention

[0004] The technical problem this invention aims to solve is to provide an economical roadbed construction method based on cost reduction and efficiency improvement to address the issues of existing compaction equipment. These issues include the tendency for roadbed materials to stick to the outer wall of the compaction rollers, affecting their normal operation; the inability of some compaction equipment with scraping functions to evenly distribute the scraped material, resulting in excessive accumulation of fallen material and affecting compaction thickness; and the inability of existing compaction equipment to monitor compaction thickness in real time during operation.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0006] An economical roadbed construction method based on cost reduction and efficiency improvement includes the following steps:

[0007] S1. Construction preparation: Determine the optimal paving thickness range for the subgrade based on the subgrade environment through experiments or calculations.

[0008] S2. Compaction test: Within the paving area, select multiple different paving thicknesses for testing. For each test paving thickness, conduct compaction tests with different numbers of rolling passes, and record the changes in compaction degree and cost data during the compaction process.

[0009] S3. Paving and compaction: Complete the paving of the entire roadbed and use compaction equipment to flatten the paved roadbed.

[0010] S4. Compaction test and repair: Conduct final compaction test on the roadbed after the paving construction is completed, and carry out rework and repair on substandard road sections.

[0011] Optionally, the compaction equipment includes: a support frame and a support frame. The top of the support frame has an installation groove, and the support frame is snapped into the installation groove. A compaction roller is movably installed inside the support frame via a bearing. The support frame is used to disassemble and support the compaction roller. A processing mechanism is provided on the inner wall of the support frame. The processing mechanism is located on one side of the compaction roller and is used to clean the sticky mud from the compaction roller during operation.

[0012] Optionally, mounting holes are provided on both sides of the support frame, a first moving rangefinder is fixedly connected to the outer wall of one end of the support frame, and a second moving rangefinder is fixedly connected to the inner wall of the other end of the support frame.

[0013] Optionally, the processing mechanism includes a positioning shaft frame fixedly connected inside the mounting hole. A scraper frame is fixedly connected to one end of the positioning shaft frame. The top of the scraper frame is located on one side of the rolling roller. A movable base frame is fixedly connected to the bottom end of the scraper frame. The movable base frame is Z-shaped. Multiple sets of shredding cones are fixedly connected to the top end of the movable base frame. A slitting frame is fixedly connected to the outer wall of the shredding cones. The piercing ends of the multiple sets of shredding cones all face the rolling roller. A set of sliding rods is slidably installed at the bottom end of the movable base frame. A spreading frame is fixedly connected to the bottom end of the set of sliding rods. An adjusting frame is fixedly connected to the top end of the set of sliding rods. A threaded frame is fixedly connected to the outer wall of the adjusting frame. A threaded adjusting rod is rotatably installed inside the threaded frame. The bottom end of the threaded adjusting rod is movably connected to the top end of the bottom of the movable base frame via a turntable.

[0014] Optionally, both ends of the positioning frame are fixedly connected to a shaft frame, and a drive plate is fixedly connected to the outer wall of the shaft frame through a bushing. One end of the drive plate is located on one side of the rolling roller, and both ends of the rolling roller are fixedly connected to a lever. The lever matches the drive plate. The other end of the drive plate is fixedly connected to a lifting plate through a movable shaft. A counterweight frame is fixedly connected to the bottom end of the lifting plate, and the counterweight frame is sleeved on the outside of the movable base frame frame.

[0015] Optionally, a shaft is fixedly connected to the top of the positioning frame, a spring cylinder is sleeved on the outer wall of the shaft, a roller is fixedly connected to the top of the spring cylinder, a traction rope is fixedly connected to one end of the drive plate, one end of the traction rope is wound around the inside of the spring cylinder, a positioning lock is fixedly connected to the top of the positioning frame, and the traction rope passes through the slot of the positioning lock.

[0016] Optionally, the scraper frame is C-shaped, the top of the scraper frame is concave arc-shaped, and multiple sets of cutting blades are fixed to the outer wall of the scraper frame.

[0017] Optionally, the outer wall of the distribution frame is fixedly connected with multiple sets of dividing rings, and the distribution frame is arranged in a W shape.

[0018] Optionally, the mounting groove is V-shaped, the top of the support frame is provided with a plug-in groove, and the bottom of the support frame is fixedly connected with a plug-in protrusion. The plug-in protrusion is inserted into the plug-in groove, the size of the plug-in protrusion and the plug-in groove are matched, and the support frame and the plug-in protrusion are fixed together by bolts.

[0019] Optionally, the top of the movable base frame is made of a flexible metal material, and both the shredding cone and the slitting frame are diamond-shaped blades.

[0020] Compared with the prior art, the present invention has at least the following beneficial effects:

[0021] In the above scheme, by setting up No. 1 and No. 2 moving distance measuring instruments, the roadbed before and after compaction can be measured during the construction process. The compaction degree of the roadbed can be measured by the change in spacing after compaction, so as to adjust the number of compaction passes in time, improve construction efficiency, reduce construction costs, and avoid the situation of repeated excessive compaction of the roadbed causing increased costs.

[0022] The scraper frame facilitates the scraping and cleaning of the outer wall of the compaction roller using the scraper frame with its concave arc top. During the cleaning process, the scraped material or soil can be guided to avoid the situation where the scraped material or soil volume is too large and affects the compaction effect of the roadbed after secondary compaction.

[0023] Multiple sets of shredding cones are fixedly connected to the top of the movable base frame, which can perform secondary shredding on the material scraped off by the scraper frame, reduce the volume of the material, and facilitate its even distribution and secondary compaction. Through the cooperation of the scraper and the multiple sets of shredding cones, the crushing efficiency of the scraped roadbed material is improved.

[0024] During operation, the roller rotates, which drives the drive plate on the outer wall of the shaft frame to lift one end of the drive plate. This pulls the counterweight frame to move and impact the movable base frame, causing it to vibrate. This vibration enhances the vibration effect of the movable base frame, which in turn causes the multiple sets of shredding cones and slitting frames at the top of the movable base frame to vibrate. This improves the crushing effect on the scraped roadbed material or soil, while also preventing soil or roadbed material from sticking to the outer wall of the shredding cones and slitting frames and causing material accumulation.

[0025] The rollers allow the drive plate to pull one end of the traction rope, causing the traction rope to pull the spring shaft cylinder to rotate, which in turn drives the rollers to rotate. The protrusions on the outer wall of the rollers strike the scraper frame, causing the scraper frame to vibrate, thus preventing material or soil from getting stuck or accumulating in the gaps between the scraper blades.

[0026] The vibration of the scraper frame, combined with the vibration of the movable base frame, can improve the contact rate and force between the scraped roadbed material and the cutting blades and multiple sets of shredding cones on the outer wall of the scraper frame. This improves the cutting and crushing effect of the roadbed material and effectively prevents the roadbed material from accumulating on the outer wall of the scraper frame. Attached Figure Description

[0027] The accompanying drawings, which are incorporated herein and form part of the specification, illustrate embodiments of the invention and, together with the specification, further serve to explain the principles of the invention and enable those skilled in the art to practice and use the invention.

[0028] Figure 1 A first-person perspective three-dimensional structural diagram of an economical roadbed construction method based on cost reduction and efficiency improvement;

[0029] Figure 2 A second-view three-dimensional structural diagram of an economical roadbed construction method based on cost reduction and efficiency improvement;

[0030] Figure 3 This is a schematic diagram of the three-dimensional structure of the support frame;

[0031] Figure 4 This is a schematic diagram of the three-dimensional structure of the support frame;

[0032] Figure 5 This is a three-dimensional structural view of the processing mechanism;

[0033] Figure 6 for Figure 5 Schematic diagram of the structure at point A in the middle;

[0034] Figure 7 This is a schematic diagram of the three-dimensional structure of the scraper frame;

[0035] Figure 8 This is a schematic diagram of the three-dimensional structure of the positioning frame.

[0036] [Figure Labels]

[0037] 1. Loading frame; 2. Support frame; 3. Compactor roller; 4. Processing mechanism; 5. Mounting hole; 6. Mounting groove; 7. Lever; 8. Scraper frame; 9. Positioning frame; 10. Movable base frame; 11. Shaft; 12. Roller; 13. Shaft frame; 14. Drive plate; 15. Lifting plate; 16. Counterweight frame; 17. Traction rope; 18. Positioning lock; 19. Sliding rod; 20. Distribution frame; 21. Protective plate frame; 22. Threaded frame; 23. Threaded adjusting rod; 24. First moving rangefinder; 25. Second moving rangefinder; 26. Positioning shaft frame; 27. Adjusting frame; 28. Crushing cone; 29. ​​Cutting frame; 30. Spring shaft sleeve; 31. Insertion groove; 32. Insertion protrusion.

[0038] As shown in the figure, specific structures and devices are marked in the figure to clearly illustrate the structure of the embodiments of the present invention. However, this is only for illustrative purposes and is not intended to limit the present invention to this specific structure, device and environment. Those skilled in the art can adjust or modify these devices and environments according to specific needs. Detailed Implementation

[0039] The following describes in detail an economical roadbed construction method based on cost reduction and efficiency improvement provided by the present invention, with reference to the accompanying drawings and specific embodiments. It should be noted that, to make the embodiments more detailed, the following embodiments are the best and preferred embodiments; those skilled in the art can also use other alternative methods to implement some known technologies; and the accompanying drawings are only for more specific description of the embodiments and are not intended to specifically limit the present invention.

[0040] It should be noted that the use of terms such as "an embodiment," "an embodiment," "an exemplary embodiment," and "some embodiments" in the specification indicates that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments (whether explicitly described or not) should be within the knowledge of those skilled in the art.

[0041] Generally, terms can be understood at least partly from their use in context. For example, depending at least partly on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in a singular sense, or a combination of features, structures, or characteristics in a plural sense. Additionally, the term "based on" can be understood not necessarily to convey an exclusive set of factors, but rather, alternatively, depending at least partly on the context, to allow for the presence of other factors that are not necessarily explicitly described.

[0042] It is understood that the meanings of “on”, “above”, and “above” in this invention should be interpreted in the broadest manner, such that “on” means not only “directly on” something, but also includes the meaning of being “on” something with an intervening feature or layer, and that “above” or “above” means not only “on” something, but also includes the meaning of being “on” something without an intervening feature or layer.

[0043] Furthermore, spatially related terms such as “below,” “under,” “lower,” “above,” and “upper” are used herein for convenience to describe the relationship of one element or feature to one or more other elements or features, as illustrated in the accompanying drawings. Spatially related terms are intended to cover different orientations in the use or operation of the device other than those depicted in the accompanying drawings. The device may be oriented in other ways, and the spatially related descriptive terms used herein can be interpreted similarly.

[0044] like Figure 1 and Figure 2 As shown, an embodiment of the present invention provides an economical roadbed construction method based on cost reduction and efficiency improvement, comprising the following steps:

[0045] S1. Construction preparation: Determine the optimal paving thickness range for the subgrade based on the subgrade environment through experiments or calculations.

[0046] S2. Compaction test: Within the paving area, select multiple different paving thicknesses for testing. For each test paving thickness, conduct compaction tests with different numbers of rolling passes, and record the changes in compaction degree and cost data during the compaction process.

[0047] S3. Paving and compaction: Complete the paving of the entire roadbed and use compaction equipment to flatten the paved roadbed.

[0048] S4. Compaction test and repair: Conduct final compaction test on the roadbed after the paving construction is completed, and carry out rework and repair on substandard road sections.

[0049] like Figure 1 and Figure 2 As shown, the compaction equipment includes: a support frame 1 and a support frame 2. The top of the support frame 1 is provided with an installation groove 6. The support frame 2 is snapped into the installation groove 6. The compaction roller 3 is movably installed inside the support frame 2 through a bearing. The support frame 2 is used to disassemble and support the compaction roller 3. The inner wall of the support frame 1 is provided with a processing mechanism 4. The processing mechanism 4 is located on one side of the compaction roller 3. The processing mechanism 4 is used to clean the sticky mud on the compaction roller 3 during operation.

[0050] The support frame 2, which is installed inside the mounting groove 6 at the top of the support frame 1, facilitates the separate positioning and support of the compaction roller 3, as well as the suspension and disassembly of the compaction roller 3 for maintenance, thereby improving the service life of the compaction roller 3. At the same time, the processing mechanism 4 set on the inner wall of the support frame 1 can scrape off the soil or roadbed material adhering to the outer wall of the compaction roller 3 during the operation of the entire compaction equipment, so as to avoid the situation where the material sticks to the compaction roller and affects the compaction of the roadbed.

[0051] like Figures 1 to 3 As shown, mounting holes 5 are provided on both sides of the support frame 1. A first moving distance measuring instrument 24 is fixedly connected to the outer wall of one end of the support frame 1, and a second moving distance measuring instrument 25 is fixedly connected to the inner wall of the other end of the support frame 1. The first moving distance measuring instrument 24 fixedly connected to the outer wall of one end of the support frame 1, and the second moving distance measuring instrument 25 fixedly connected to the inner wall of the other end of the support frame 1, can measure the roadbed before and after compaction. By measuring the change in spacing after compaction, the compaction degree of the roadbed can be measured, thereby adjusting the number of compaction passes in a timely manner, improving construction efficiency while reducing construction costs, and avoiding the situation where repeated excessive compaction of the roadbed causes increased costs.

[0052] like Figure 3 , Figure 5 , Figure 6 and Figure 7As shown, the processing mechanism 4 includes a positioning shaft frame 26 fixedly connected inside the mounting hole 5. A scraper frame 8 is fixedly connected to one end of the positioning shaft frame 26. The top of the scraper frame 8 is located on one side of the rolling roller 3. A movable base frame 10 is fixedly connected to the bottom of the scraper frame 8. The movable base frame 10 is Z-shaped. Multiple sets of shredding cones 28 are fixedly connected to the top of the movable base frame 10. A slitting frame 29 is fixedly connected to the outer wall of the shredding cones 28. The piercing ends of the multiple sets of shredding cones 28 all face the rolling roller 3. The bottom of the movable base frame 10 is slidably mounted. There is a set of sliding rods 19, with a spreading frame 20 fixedly connected to the bottom of the set of sliding rods 19 and an adjusting frame 27 fixedly connected to the top of the set of sliding rods 19. A threaded frame 22 is fixedly connected to the outer wall of the adjusting frame 27, and a threaded adjusting rod 23 is rotatably installed inside the threaded frame 22. The bottom end of the threaded adjusting rod 23 is movably connected to the bottom and top of the movable base frame 10 through a turntable. When the compaction roller 3 rotates to compact the roadbed, the scraper frame 8 fixedly connected to one end of the positioning shaft frame 26 can remove the sludge adhering to the outer wall of the compaction roller 3. The scraped material or soil is scraped off. After being compressed, the scraped material or soil is cut by the multi-component cutting blades on the outer wall of the scraper frame 8, thus avoiding the situation where the scraped material or soil volume is too large and affects the compaction effect of the roadbed after secondary compaction. At the same time, the multi-component crushing cones 28 fixedly connected to the top of the movable base frame 10 can further crush the material scraped off by the scraper frame 8, reduce the material volume, and facilitate its even distribution and secondary compaction. Through the cooperation of the scraper frame 8 and the multi-component crushing cones 28, the crushing efficiency of the scraped roadbed material is improved. By rotating the threaded adjusting rod 23 inside the threaded frame 22, the adjusting frame 27 can be moved in conjunction with the sliding rod 19, thereby changing the height of the spreading frame 20 at the bottom of the sliding rod 19, so that the position of the spreading frame 20 matches the roadbed. The spreading frame 20 is used to distribute the crushed roadbed material or soil, avoiding the situation where the fallen roadbed material or soil is too concentrated and affects the subsequent compaction operation.

[0053] like Figure 5 , Figure 6 and Figure 8As shown, both ends of the positioning frame 9 are fixedly connected to shaft frames 13. The outer wall of the shaft frame 13 is fixedly connected to a drive plate 14 via a bushing. One end of the drive plate 14 is located on one side of the rolling roller 3. Both ends of the rolling roller 3 are fixedly connected to levers 7, which are matched with the drive plate 14. The other end of the drive plate 14 is fixedly connected to a lifting plate 15 via a movable shaft. The bottom end of the lifting plate 15 is fixedly connected to a counterweight frame 16, which is fitted onto the outer side of the movable base frame 10. When the rolling roller 3 rotates during operation, it will drive the levers 7 to press down. The drive plate 14 on the outer wall of the axle frame 13 lifts one end of the drive plate 14, pulling the counterweight frame 16 to move and impact the movable base frame 10, thereby causing the movable base frame 10 to shake, enhancing the vibration effect of the movable base frame 10, and in turn causing the multiple sets of shredding cones 28 and cutting frames 29 on the top of the movable base frame 10 to shake, improving their crushing effect on the scraped roadbed material or soil, and also preventing soil or roadbed material from sticking to the outer wall of the shredding cones 28 and cutting frames 29, causing material accumulation.

[0054] like Figure 8 As shown, a shaft 11 is fixedly connected to the top of the positioning frame 9. A spring cylinder 30 is sleeved on the outer wall of the shaft 11. A roller 12 is fixedly connected to the top of the spring cylinder 30. A traction rope 17 is fixedly connected to one end of the drive plate 14. One end of the traction rope 17 is wound around the inside of the spring cylinder 30. A positioning lock 18 is fixedly connected to the top of the positioning frame 9. The traction rope 17 passes through the slot of the positioning lock 18. When one end of the drive plate 14 moves, one end of the traction rope 17 can be pulled, thereby causing the traction rope 17 to pull the spring cylinder 30 to rotate, which in turn drives the roller 12 to rotate. The protrusions on the outer wall of the roller 12 strike the scraper frame 8, causing the scraper frame 8 to vibrate, thus preventing material or soil from getting stuck or accumulating in the gaps of the scraper blades of the scraper frame 8.

[0055] like Figure 5 and Figure 8 As shown, the scraper frame is C-shaped, and the top of the scraper frame 8 is concave arc-shaped. Multiple sets of cutting blades are fixed to the outer wall of the scraper frame 8. The C-shaped design and concave arc-shaped top of the scraper frame 8 facilitate the installation of auxiliary structures within the C-shaped groove, eliminating the need for excessive support structures and reducing equipment costs. Simultaneously, during the scraping and cleaning of the outer wall of the roller 3, the concave arc-shaped scraper frame 8 guides the scraped material or soil, causing the roadbed material to move towards the concave area of ​​the scraper frame 8, thus enabling better cutting and crushing of the roadbed material and facilitating secondary spreading of the roadbed material.

[0056] like Figures 5 to 7As shown, the outer wall of the averaging frame 20 is fixedly connected with multiple sets of dividing rings, and the averaging frame 20 is arranged in a W shape. The averaging frame 20 with multiple sets of dividing rings fixedly connected to the outer wall can divide and distribute the scraped and fallen roadbed material. At the same time, the W-shaped averaging frame 20 can guide the scraped and fallen roadbed material to both sides, thereby avoiding the situation where the fallen roadbed material is too concentrated, affecting the roadbed thickness and thus affecting the subsequent compaction effect.

[0057] like Figures 3 to 4 As shown, the mounting groove 6 is V-shaped, and the top of the support frame 1 is provided with a plug-in groove 31. The bottom of the support frame 2 is fixedly connected with a plug-in protrusion 32, which is inserted into the plug-in groove 31. The plug-in protrusion 32 and the plug-in groove 31 are matched in size, and the support frame 1 and the plug-in protrusion 32 are fixed together by bolts. The V-shaped mounting groove 6 facilitates the quick and convenient installation of the support frame 2 into the support frame 1. The plug-in protrusion 32 fixedly connected to the bottom of the support frame 2 is inserted into the plug-in groove 31 at the top of the support frame 1. The plug-in protrusion 32 can be used in conjunction with the support frame 2 to distribute the gravity generated by the support frame 2 to both sides of the mounting groove 6, thereby avoiding the situation where the structural strength of the groove of the support frame 1 is easily deformed and broken, and improving the connection strength between the support frame 2 and the support frame 1.

[0058] like Figures 6 to 7 As shown, the top of the movable base frame 10 is made of elastic metal material. Both the shredding cone 28 and the cutting frame 29 are diamond-shaped blades. The movable base frame 10, with its top made of elastic metal material, has good vibration characteristics, which facilitates the shaking of the shredding cone 28 and the cutting frame 29, thereby improving the crushing and cutting effect on the roadbed material.

[0059] The working principle of this invention involves connecting the entire device to a drive unit via a support frame 1. The drive unit moves the support frame 1. During this movement, a compaction roller 3, mounted internally on a support frame 2 via bearings, compacts the roadbed material. Throughout the device's operation, a first moving distance measuring instrument 24, fixedly connected to the outer wall of one end of the support frame 1, and a second moving distance measuring instrument 25, fixedly connected to the inner wall of the other end of the support frame 1, can measure the roadbed before and after compaction. The change in spacing after compaction measures the roadbed compaction degree, allowing for timely adjustment of the number of compaction passes. This improves construction efficiency while reducing costs, avoiding excessive and repetitive compaction that could increase costs. When the roller 3 rotates to compact the roadbed, the scraper frame 8, which is fixedly connected to one end of the positioning shaft frame 26, can scrape off the material or soil adhering to the outer wall of the roller 3. After being squeezed, the scraped material or soil is cut by the multi-component cutting blades on the outer wall of the scraper frame 8, thereby avoiding the situation where the scraped material or soil volume is too large and affects the compaction effect of the roadbed after secondary compaction. The threaded adjusting rod 23 inside the rotating threaded frame 22 can drive the adjusting frame 27 to move in conjunction with the sliding rod 19, thereby changing the height of the spreading frame 20 at the bottom of the sliding rod 19. The spreading frame 20 is used to spread the cut and crushed roadbed material or soil, avoiding the situation where the fallen roadbed material or soil is too concentrated and affects the subsequent compaction operation.

[0060] During operation, the roller 3 rotates, which drives the lever 7 to press down on the drive plate 14 on the outer wall of the shaft frame 13. This causes one end of the drive plate 14 to rise, pulling the counterweight frame 16 to move and impact the movable base frame 10, thereby causing the movable base frame 10 to vibrate and enhancing the vibration effect. This, in turn, causes the multiple sets of shredding cones 28 and the slitting frame 29 at the top of the movable base frame 10 to vibrate, breaking up the scraped roadbed material or soil and preventing soil or roadbed material from sticking to the outer wall of the shredding cones 28 and the slitting frame 29. When one end of the drive plate 14 moves, it can pull one end of the traction rope 17, causing the traction rope 17 to pull the spring shaft cylinder 30 to rotate, which in turn drives the roller 12 to rotate. The protrusions on the outer wall of the roller 12 strike the scraper frame 8, causing the scraper frame 8 to vibrate and preventing material or soil from getting stuck in the gaps between the blades of the scraper frame 8.

[0061] This invention encompasses any substitutions, modifications, equivalent methods, and solutions made within the spirit and scope of this invention. To provide the public with a thorough understanding of this invention, specific details are described in detail in the following preferred embodiments; however, those skilled in the art will fully understand the invention even without these details. Furthermore, to avoid unnecessary misunderstanding of the essence of this invention, well-known methods, processes, procedures, components, and circuits are not described in detail.

[0062] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. An economical roadbed construction method based on cost reduction and efficiency improvement, characterized in that, Includes the following steps: S1. Construction preparation: Determine the optimal paving thickness range for the subgrade based on the subgrade environment through experiments or calculations. S2. Compaction test: Within the paving area, select multiple different paving thicknesses for testing. For each test paving thickness, conduct compaction tests with different numbers of rolling passes, and record the changes in compaction degree and cost data during the compaction process. S3. Paving and compaction: Complete the paving of the entire roadbed and use compaction equipment to flatten the paved roadbed. S4. Compaction test and repair: Conduct final compaction test on the roadbed after the paving construction is completed and rework and repair the substandard road sections; The rolling equipment includes: a support frame and a support frame. The top of the support frame is provided with an installation groove. The support frame is snapped into the installation groove. A rolling roller is movably installed inside the support frame through a bearing. The support frame is used to support the rolling roller when it is disassembled. The inner wall of the support frame is provided with a processing mechanism, which is located on one side of the roller. The processing mechanism is used to clean the sticky mud when the roller is working. Mounting holes are provided on both sides of the support frame. The processing mechanism includes a positioning shaft frame fixedly connected inside the mounting hole. A scraper frame is fixedly connected to one end of the positioning shaft frame. The top of the scraper frame is located on one side of the rolling roller. A movable base frame is fixedly connected to the bottom end of the scraper frame. The movable base frame is Z-shaped. Multiple sets of shredding cones are fixedly connected to the top end of the movable base frame. A slitting frame is fixedly connected to the outer wall of the shredding cones. The piercing ends of the multiple sets of shredding cones all face the rolling roller. A set of sliding rods is slidably installed at the bottom end of the movable base frame. A spreading frame is fixedly connected to the bottom end of the set of sliding rods. An adjusting frame is fixedly connected to the top end of the set of sliding rods. A threaded frame is fixedly connected to the outer wall of the adjusting frame. A threaded adjusting rod is rotatably installed inside the threaded frame. The bottom end of the threaded adjusting rod is movably connected to the top end of the bottom of the movable base frame via a turntable. Both ends of the positioning frame are fixedly connected to shaft frames. The outer wall of the shaft frame is fixedly connected to a drive plate through a bushing. One end of the drive plate is located on one side of the rolling roller. Both ends of the rolling roller are fixedly connected to levers. The levers match the drive plate. The other end of the drive plate is fixedly connected to a lifting plate through a movable shaft. The bottom end of the lifting plate is fixedly connected to a counterweight frame. The counterweight frame is sleeved on the outside of the movable base frame frame. A shaft is fixedly connected to the top of the positioning frame, a spring cylinder is sleeved on the outer wall of the shaft, a roller is fixedly connected to the top of the spring cylinder, a traction rope is fixedly connected to one end of the drive plate, one end of the traction rope is wound around the inside of the spring cylinder, a positioning lock is fixedly connected to the top of the positioning frame, and the traction rope passes through the slot of the positioning lock.

2. The cost-effective roadbed construction method based on cost reduction and efficiency improvement according to claim 1, characterized in that, A first moving distance measuring instrument is fixedly connected to the outer wall of one end of the support frame, and a second moving distance measuring instrument is fixedly connected to the inner wall of the other end of the support frame.

3. The cost-effective roadbed construction method based on cost reduction and efficiency improvement according to claim 2, characterized in that, The scraper frame is C-shaped, with a concave arc at the top, and multiple sets of cutting blades are fixed to the outer wall of the scraper frame.

4. The cost-effective roadbed construction method based on cost reduction and efficiency improvement according to claim 3, characterized in that, The outer wall of the distribution frame is fixedly connected with multiple sets of dividing rings, and the distribution frame is arranged in a W shape.

5. The cost-effective roadbed construction method based on cost reduction and efficiency improvement according to claim 1, characterized in that, The mounting slot is V-shaped, the top of the support frame has a plug-in slot, and the bottom of the support frame is fixedly connected to a plug-in protrusion. The plug-in protrusion is inserted into the plug-in slot. The size of the plug-in protrusion and the plug-in slot are matched, and the support frame and the plug-in protrusion are fixed together by bolts.

6. The cost-effective roadbed construction method based on cost reduction and efficiency improvement according to claim 1, characterized in that, The top of the movable base frame is made of elastic metal material, and both the shredding cone and the cutting frame are diamond-shaped blades.

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