CN114293437B - Impact rolling construction method for highway subgrade - Google Patents
Impact rolling construction method for highway subgrade Download PDFInfo
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- CN114293437B CN114293437B CN202210102462.9A CN202210102462A CN114293437B CN 114293437 B CN114293437 B CN 114293437B CN 202210102462 A CN202210102462 A CN 202210102462A CN 114293437 B CN114293437 B CN 114293437B
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Abstract
The application relates to the technical field of highway construction, in particular to a highway subgrade impact rolling construction method, which comprises the following steps of S1: leveling the surface of the impact rolling road section, detecting compactness and flatness, and sprinkling water and rolling if the compactness and flatness are not in accordance with the requirements; s2: when the surface compactness and the flatness of the impact rolling road section meet the requirements, adopting an impact roller to impact and roll the rolling road section for 10-20 times, detecting the settlement and the surface compactness after rolling, and if the settlement and the surface compactness do not meet the requirements, supplementing the impact rolling for 5-10 times; s3: when the settlement after the impact rolling road section is rolled and the surface layer compactness meet the requirements, removing redundant earthwork, and finishing the roadbed; s4: detecting the elevation of the roadbed, and if the elevation does not meet the requirements, carrying out the step S3 again; s5: and when the elevation of the roadbed meets the requirements, rolling for 1-3 times by adopting a vibratory roller or a smooth wheel roller. The application has the effect that can promote the compaction efficiency of road bed.
Description
Technical Field
The application relates to the technical field of highway construction, in particular to a highway subgrade impact rolling construction method.
Background
At present, roads are established between connecting cities, villages and industrial and mining bases according to national technical standards, and are approved by road authorities and mainly used for automobile running and provided with certain technical standards and facilities, wherein highway subgrade is the most important building in highway components.
When the existing highway subgrade is constructed, the compaction process of the highway subgrade is an important part of highway engineering construction, a heavy hammer tamper is generally used for compacting the highway subgrade, and after the heavy hammer is lifted to the upper part through a lifting mechanism, the heavy hammer falls onto the subgrade, and the road subgrade is tamped through the impact force of the heavy hammer.
In view of the above-mentioned related art, the inventors consider that there is a disadvantage in that the weight compactor is operated by a single compaction, and the interval between each impact is long, resulting in a low compaction efficiency of the roadbed.
Disclosure of Invention
In order to improve the compaction efficiency of the roadbed, the application provides a highway roadbed impact rolling construction method.
The highway subgrade impact rolling construction method provided by the application adopts the following technical scheme:
the highway subgrade impact rolling construction method comprises the following steps:
s1: leveling the surface of the impact rolling road section, detecting compactness and flatness, and sprinkling water and rolling if the compactness and flatness are not in accordance with the requirements;
s2: when the surface compactness and the flatness of the impact rolling road section meet the requirements, adopting an impact roller to impact and roll the rolling road section for 10-20 times, detecting the settlement and the surface compactness after rolling, and if the settlement and the surface compactness do not meet the requirements, supplementing the impact rolling for 5-10 times;
s3: when the settlement after the impact rolling road section is rolled and the surface layer compactness meet the requirements, removing redundant earthwork, and finishing the roadbed;
s4: detecting the elevation of the roadbed, and if the elevation does not meet the requirements, carrying out the step S3 again;
s5: and when the elevation of the roadbed meets the requirements, rolling for 1-3 times by adopting a vibratory roller or a smooth wheel roller.
Through adopting above-mentioned technical scheme, through the setting of striking the road pressing car, strike the road pressing car during operation, strike the road roller and strike the road bed and roll 10-20 times, can promote the compaction efficiency of road bed.
Optionally: the impact pressure equipment comprises a tractor and a rolling device arranged on the tractor, wherein the rolling device comprises a connecting vehicle arranged on the tractor and an impact wheel used for impacting and rolling the roadbed, a rotating shaft is rotatably matched on the connecting vehicle, and the impact wheel is arranged on the rotating shaft.
Through adopting above-mentioned technical scheme, start the tractor, can drive the connection car and remove, drive the axis of rotation simultaneously and rotate, make the impact wheel roll forward, can realize rolling to the road bed.
Optionally: the dust collector is characterized in that the connecting vehicle is provided with a dust collector, the dust collector comprises a dust collection pipe for adsorbing dust, a fan and a dust collection box, the fan is arranged on the connecting vehicle, an exhaust opening of the fan is communicated with the dust collection pipe, and an exhaust opening of the fan is communicated with the dust collection box.
Through adopting above-mentioned technical scheme, be provided with dust collector on the connection car, the impact wheel during operation, start the fan to extract the dust through the dust absorption pipe to carry the dust collection incasement and store, make the impact press the way car during operation, reduce the pollution to the environment.
Optionally: the dust collection pipe comprises a connecting pipe communicated with the exhaust port of the fan and a plurality of connecting branch pipes arranged at the flange of the impact wheel, and the connecting branch pipes are communicated with the connecting pipe.
Through adopting above-mentioned technical scheme, start the fan, be in charge of the pipe through connecting pipe and connection and can realize the extraction to the dust to carry the dust of extraction through being in charge of and connecting pipe.
Optionally: the connecting vehicle is connected with a storage disc, a storage cavity is formed in the storage disc, and the connecting pipe and the connecting branch pipe are communicated with the storage cavity.
Through adopting above-mentioned technical scheme, through the setting of storage dish, make the entering into the connection be in charge of can enter into the storage intracavity and store, later extract the dust of storing the intracavity through the connecting pipe to carry, realize a plurality of connection be in charge of and the connection between the connecting pipe, and it is comparatively convenient to connect.
Optionally: the rotating shaft is provided with a fixed disc, and the connecting branch pipe is connected to the fixed disc.
Through adopting above-mentioned technical scheme, through the setting of fixed disk, can realize being in charge of the support of pipe to the connection, and then make the installation that the connection is in charge of more firm.
Optionally: one end of the connecting branch pipe extending into the storage disc is provided with a limiting part for limiting the connecting branch pipe to slide towards the outside of the storage disc.
Through adopting above-mentioned technical scheme, through the setting of spacing portion, can further be spacing to connecting the branch pipe, reduce and connect the branch pipe and use the back for a long time, the phenomenon that drops in the follow storage dish.
Optionally: the connection vehicle is provided with a push switch mechanism, the push switch mechanism comprises a fixed plate arranged on the connection vehicle, a normally closed contact arranged on the fixed plate, a rotating plate in running fit on the fixed plate and a normally open contact arranged on the rotating plate, and a flange of the impact wheel is used for pushing the normally open contact to be abutted to the normally closed contact.
Through adopting above-mentioned technical scheme, through pressing switch mechanism's setting, when making the impact wheel rotate the rotor plate department, can promote the rotor plate, drive normally open contact butt on normally closed contact, and then realize opening of fan, it is more convenient to make opening of fan, can reduce the impact wheel simultaneously when not working, and the fan still works, causes the extravagant phenomenon of energy.
Optionally: the fixed plate is provided with an elastic piece which pushes the rotating plate to rotate away from the fixed plate.
Through adopting above-mentioned technical scheme, through the setting of elastic component, when making the impact wheel no longer promote the pivoted panel, the elastic component can release elasticity restoring force, drives the pivoted panel and to keeping away from fixed plate department rotation, realizes the separation of normally open contact and normally open contact, makes the fan no longer work.
Optionally: one end of the rotating plate, which is away from the fixed plate, is provided with an arc-shaped surface matched with the flange of the impact wheel.
Through adopting above-mentioned technical scheme, through the setting of arcwall face, make the flange of impact wheel rotate behind the rotor plate department, the impact wheel rotates the butt on the arcwall face to promote the rotor plate, reduce the impact wheel and strike the rotor plate, and then cause the rotor plate to take place the phenomenon of damage.
Drawings
FIG. 1 is a construction process flow diagram of the present application;
FIG. 2 is a partial cross-sectional view of the present application;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
FIG. 4 is a partial enlarged view at B in FIG. 2;
fig. 5 is a partial cross-sectional view showing a connection relationship of a storage disk and a fixed disk.
Reference numerals: 1. impact roller; 11. a tractor; 111. a mounting frame; 12. a rolling device; 121. connecting a vehicle; 122. an impact wheel; 123. a rotating shaft; 2. a dust removal device; 21. a dust collection pipe; 211. a connecting pipe; 212. connecting branch pipes; 213. a dust hood; 22. a blower; 23. a dust collection box; 3. a storage disk; 31. a storage chamber; 4. a fixed plate; 5. a limit part; 6. pressing the switch mechanism; 61. a fixing plate; 62. a normally closed contact; 63. a rotating plate; 631. an arc surface; 64. a normally open contact; 65. an elastic member; 7. a connecting frame; 8. a connecting mechanism; 81. a bolt; 82. a nut; 83. a support plate; 84. a limiting plate; 9. a buffer mechanism; 91. an air spring; 92. a connecting plate; 93. a first buffer member; 94. an abutting plate; 95. a second buffer member; 10. and (5) supporting the rod.
Detailed Description
The present application is described in further detail below in conjunction with figures 1-5.
The embodiment of the application discloses a highway subgrade impact rolling construction method. Referring to fig. 1 and 2, the highway subgrade impact rolling construction method comprises the following steps:
s1: leveling the surface of the impact rolling road section, detecting compactness and flatness, and sprinkling water and rolling if the compactness and flatness are not in accordance with the requirements;
s2: when the surface compactness and the flatness of the impact rolling road section meet the requirements, adopting an impact roller 1 to impact and roll the rolling road section for 10-20 times, detecting the settlement and the surface compactness after rolling, and if the settlement and the surface compactness do not meet the requirements, supplementing the impact rolling for 5-10 times;
s3: when the settlement after the impact rolling road section is rolled and the surface layer compactness meet the requirements, removing redundant earthwork, and finishing the roadbed;
s4: detecting the elevation of the roadbed, and if the elevation does not meet the requirements, carrying out the step S3 again;
s5: and when the elevation of the roadbed meets the requirements, rolling for 1-3 times by adopting a vibratory roller or a smooth wheel roller.
The highway subgrade impact rolling device is used for impact rolling of rolling road sections in the highway subgrade impact rolling construction method, and referring to fig. 2 and 3, the impact road roller 1 comprises a tractor 11 and rolling devices 12 arranged on the tractor 11, the rolling devices 12 are used for impact rolling of the subgrade, the tractor 11 is used for driving the rolling devices 12 to move, and rolling of the subgrade at different positions is achieved.
Referring to fig. 2 and 5, the rolling device 12 includes a connecting vehicle 121 disposed on the tractor 11, and impact wheels 122 for impact rolling of the roadbed, a rotating shaft 123 is rotatably fitted on the connecting vehicle 121, the rotating shaft 123 is disposed along the width direction of the tractor 11, the impact wheels 122 are fixedly mounted on the rotating shaft 123, two impact wheels 122 are disposed along the length direction of the rotating shaft 123 at intervals, the impact wheels 122 can directly adopt quadrilateral impact wheels, and four flanges for impact rolling of the roadbed are disposed on the impact wheels 122. When the roadbed is required to be rolled, the tractor 11 is started, the connecting vehicle 121 is driven to move, the rotating shaft 123 is driven to rotate, the impact wheel 122 is driven to roll forward, and the impact rolling operation is carried out on the distance.
Referring to fig. 2 and 4, in order to facilitate connection between the tractor 11 and the connection vehicle 121, a mounting frame 111 is fixedly provided on the tractor 11, and the mounting frame 111 has a concave structure. The connecting truck 121 is provided with the link 7 near the fixed one end of tractor 11, and the through-hole in the vertical direction has been seted up to the one end of link 7, is provided with the coupling mechanism 8 that is used for connecting mounting bracket 111 and link 7 in the through-hole.
Referring to fig. 2 and 4, the connection mechanism 8 includes a bolt 81 penetrating through the through hole and a nut 82 screwed on the bolt 81, the bolt 81 is vertically arranged, the head of the bolt 81 is abutted to the lower surface of the mounting frame 111, the nut 82 is screwed into the bolt 81 to penetrate through the through hole of the connection frame 7 and one end of the mounting frame 111, the mounting frame 111 is pressed and locked, a support plate 83 is sleeved on the bolt 81 near the lower surface of the connection frame 7, and a limit plate 84 is sleeved on the bolt 81 near the upper surface of the connection frame 7.
Referring to fig. 2 and 4, in order to buffer vibration between the link 7 and the mounting frame 111 when the impact wheel 122 is operated, a buffer mechanism 9 is provided on the link 7, the buffer mechanism 9 includes an air spring 91 sleeved on the bolt 81, and connection plates 92 fixedly provided at the top and bottom ends of the air spring 91, the upper connection plate 92 is fixedly connected with the limit plate 84 through a fastening bolt, and the lower connection plate 92 is fixedly connected with the support plate 83 through a fastening bolt. The bolt 81 is provided with two first buffer members 93 in a sleeved mode at intervals, the first buffer members 93 are respectively used for pushing the limiting plate 84 and the supporting plate 83 to move in the direction of approaching to each other, the first buffer members 93 can directly adopt springs, the first buffer members 93 above are located between the upper surface of the limiting plate 84 and the mounting frame 111, and the first buffer members 93 below are located between the lower surface of the supporting plate 83 and the mounting frame 111. The mounting frame 111 is fixedly provided with a second buffer member 95, the second buffer member 95 can directly adopt a spring, one end, close to the connecting frame 7, of the second buffer member 95 is fixedly provided with an abutting plate 94, the second buffer member 95 pushes the abutting plate 94 to the position, close to the connecting frame 7, of the second buffer member 95, and one end, close to the connecting frame 7, of the second buffer member is abutted to the abutting plate 94. When the rolling device 12 vibrates in the vertical direction generated in the working process, the air spring 91 and the buffer piece I93 are used for damping, and when the rolling device 12 vibrates in the horizontal direction generated in the working process, the air spring 91 and the buffer piece II 95 are used for damping.
Referring to fig. 2 and 5, in order to remove dust generated when the rolling mill 12 is operated, a dust removing device 2 is provided on a connection vehicle 121, the dust removing device 2 includes a dust suction pipe 21 for sucking dust, a fan 22 and a dust box 23 fixedly provided on the connection vehicle 121, the dust box 23 is provided on the connection vehicle 121, an exhaust port of the fan 22 is communicated with the dust suction pipe 21, and an exhaust port of the fan 22 is communicated with the dust box 23. When the rolling device 12 works, the fan 22 is started, dust is extracted through the dust collection pipe 21, and the dust is conveyed into the dust collection box 23 for storage.
Referring to fig. 2 and 5, the dust suction pipe 21 includes a connecting pipe 211 communicated with the suction opening of the fan 22 and four connecting branched pipes 212 arranged at the flange of the impact wheel 122, the connecting pipe 211 is a "herringbone" pipe, the connecting branched pipes 212 are L-shaped pipes, the connecting branched pipes 212 are communicated with the connecting pipe 211, one connecting branched pipe 212 is respectively arranged at the four flange of the impact wheel 122, a dust suction cover 213 is fixedly connected to the connecting branched pipes 212, and the dust inlet of the dust suction cover 213 is arranged in a direction far away from the connecting branched pipes 212.
Referring to fig. 2 and 5, the connecting cart 121 is fixedly connected with the storage disc 3 through a bracket, the storage disc 3 is of a disc-shaped structure along the height direction of the dust box 23, the storage cavity 31 is formed in the storage disc 3, the connecting pipe 211 and the connecting branch pipe 212 are communicated with the storage cavity 31, one end of the connecting branch pipe 212 stretches into the storage cavity 31 and is in running fit with the storage disc 3, one end of the connecting branch pipe 212 stretches into the storage disc 3 is provided with the limiting part 5, the limiting part 5 is a circular ring, and the limiting part 5 is used for limiting the connecting branch pipe 212 to slide towards the outside of the storage disc 3. The rotation shaft 123 is provided with a fixed disk 4 in a rotating fit manner, a round rod is fixedly arranged on the outer side face of the storage disk 3, the storage disk 3 is fixedly connected with the fixed disk 4 through the round rod, and the connecting branch pipe 212 is fixedly connected to the fixed disk 4. During the rotation operation of the impact wheel 122, dust is extracted through the dust hood 213, and is sequentially transferred into the dust box 23 through the connection branch pipe 212, the storage chamber 31, the connection pipe 211 and the fan 22 to be stored.
Referring to fig. 2 and 3, in order to enable the blower 22 to be automatically turned on when the impact wheel 122 is operated, a support bar 10 is fixedly provided on the connection car 121, one end of the support bar 10 is provided with a push switch mechanism 6, the push switch mechanism 6 is electrically connected with the blower 22, and the push switch mechanism 6 is used for controlling the blower 22 to be turned on and off.
Referring to fig. 2 and 3, the push switch mechanism 6 includes a fixed plate 61 fixedly disposed on the support rod 10, a normally closed contact 62 fixedly disposed on the fixed plate 61, a rotating plate 63 rotatably fitted on the fixed plate 61, and a normally open contact 64 fixedly disposed on the rotating plate 63, wherein a fixed shaft is rotatably fitted on the rotating plate 63, and the fixed shaft is fixedly connected with the support rod 10. The end of the rotating plate 63 facing away from the fixed plate 61 is provided with an arcuate surface 631 which is adapted to the flange of the impact wheel 122. The fixed plate 61 is fixedly provided with an elastic piece 65, the elastic piece 65 can directly adopt a spring, two ends of the elastic piece 65 are respectively fixedly connected with the fixed plate 61 and the rotating plate 63, and the elastic piece 65 is used for pushing the rotating plate 63 to a position far away from the fixed plate 61. When the impact wheel 122 rotates, the flange of the impact wheel 122 rotates to the rotating plate 63 and pushes the normally open contact 64 to be abutted against the normally closed contact 62, then the fan 22 is started to extract dust generated in the operation of the impact wheel 122, and when the flange of the impact wheel 122 rotates out of the arc surface 631, the elastic piece 65 drives the rotating plate 63 to rotate away from the fixed plate 61, the normally open contact 64 is separated from the normally closed contact 62, and the fan 22 is closed to finish the dust collecting operation.
The implementation principle of the highway subgrade impact rolling construction method in the embodiment of the application is as follows: when the roadbed needs to be constructed, the tractor 11 is started to drive the connecting vehicle 121 to move and drive the impact wheel 122 to rotate, impact rolling operation is carried out on the roadbed, in the rotating process of the impact wheel 122, the flange of the impact wheel 122 pushes the rotating plate 63, so that the normally open contact 64 is abutted against the normally closed contact 62, the fan 22 is started, dust generated when the impact wheel 122 works is extracted through the connecting pipe 211, the storage disc 3, the connecting branch pipe 212 and the dust hood 213 and conveyed into the dust collection box 23, and after the flange of the impact wheel 122 is completely rotated away from the arc surface 631, the normally open contact 64 is far away from the normally closed contact 62, and the fan 22 is closed.
The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.
Claims (7)
1. The highway subgrade impact rolling construction method is characterized by comprising the following steps of: the method comprises the following steps:
s1: leveling the surface of the impact rolling road section, detecting compactness and flatness, and sprinkling water and rolling if the compactness and flatness are not in accordance with the requirements;
s2: when the surface compactness and the flatness of the impact rolling road section meet the requirements, adopting an impact roller (1) to impact and roll the rolling road section for 10-20 times, detecting the settlement and the surface compactness after rolling, and if the settlement and the surface compactness do not meet the requirements, supplementing the impact rolling for 5-10 times;
s3: when the settlement after the impact rolling road section is rolled and the surface layer compactness meet the requirements, removing redundant earthwork, and finishing the roadbed;
s4: detecting the elevation of the roadbed, and if the elevation does not meet the requirements, carrying out the step S3 again;
s5: when the elevation of the roadbed meets the requirements, rolling for 1-3 times by adopting a vibratory roller or a smooth wheel roller;
the impact road roller (1) comprises a tractor (11) and a rolling device (12) arranged on the tractor (11), the rolling device (12) comprises a connecting vehicle (121) arranged on the tractor (11) and an impact wheel (122) for impact rolling of a roadbed, a rotating shaft (123) is rotatably matched on the connecting vehicle (121), and the impact wheel (122) is arranged on the rotating shaft (123);
the dust collection device is characterized in that a dust collection device (2) is arranged on the connecting vehicle (121), the dust collection device (2) comprises a dust collection pipe (21) for absorbing dust, a fan (22) and a dust collection box (23) which are arranged on the connecting vehicle (121), an exhaust opening of the fan (22) is communicated with the dust collection pipe (21), and an exhaust opening of the fan (22) is communicated with the dust collection box (23);
the connection vehicle (121) is provided with a push switch mechanism (6), the push switch mechanism (6) comprises a fixed plate (61) arranged on the connection vehicle (121), a normally closed contact (62) arranged on the fixed plate (61), a rotating plate (63) rotationally matched with the fixed plate (61) and a normally open contact (64) arranged on the rotating plate (63), and a flange of the impact wheel (122) is used for pushing the normally open contact (64) to be abutted to the normally closed contact (62).
2. The highway subgrade impact rolling construction method as claimed in claim 1, wherein: the dust collection pipe (21) comprises a connecting pipe (211) communicated with an exhaust port of the fan (22) and a plurality of connecting branch pipes (212) arranged at the flange of the impact wheel (122), and the connecting branch pipes (212) are communicated with the connecting pipe (211).
3. The highway subgrade impact rolling construction method as claimed in claim 2, wherein: the connecting vehicle (121) is connected with a storage disc (3), a storage cavity (31) is formed in the storage disc (3), and the connecting pipe (211) and the connecting branch pipe (212) are communicated with the storage cavity (31).
4. The highway subgrade impact rolling construction method as claimed in claim 3, wherein: the rotating shaft (123) is provided with a fixed disc (4), and the connecting branch pipe (212) is connected to the fixed disc (4).
5. The highway subgrade impact rolling construction method is characterized in that: one end of the connecting branch pipe (212) extending into the storage disc (3) is provided with a limiting part (5) for limiting the connecting branch pipe (212) to slide towards the outside of the storage disc (3).
6. The highway subgrade impact rolling construction method as claimed in claim 1, wherein: the fixed plate (61) is provided with an elastic piece (65) which pushes the rotating plate (63) to rotate away from the fixed plate (61).
7. The highway subgrade impact rolling construction method as claimed in claim 1, wherein: one end of the rotating plate (63) which is away from the fixed plate (61) is provided with an arc-shaped surface (631) which is matched with the flange of the impact wheel (122).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210102462.9A CN114293437B (en) | 2022-01-27 | 2022-01-27 | Impact rolling construction method for highway subgrade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210102462.9A CN114293437B (en) | 2022-01-27 | 2022-01-27 | Impact rolling construction method for highway subgrade |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114293437A CN114293437A (en) | 2022-04-08 |
| CN114293437B true CN114293437B (en) | 2023-04-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210102462.9A Active CN114293437B (en) | 2022-01-27 | 2022-01-27 | Impact rolling construction method for highway subgrade |
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| Country | Link |
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| CN (1) | CN114293437B (en) |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH447053A (en) * | 1965-10-16 | 1967-11-15 | Losenhausenwerk Duesseldorfer | Roller vehicle for soil compaction |
| DE29805539U1 (en) * | 1998-03-26 | 1998-06-18 | Vibromax Bodenverdichtungsmasc | Soil compaction machine |
| AU2007203189A1 (en) * | 2006-07-10 | 2008-01-24 | Matthews Bros Engineering Pty Ltd | An assembly and vehicle suitable for use in the construction or maintenance of roads |
| CN214401319U (en) * | 2021-01-20 | 2021-10-15 | 山东省公路桥梁建设有限公司 | Road surface impact rolling road roller capable of improving compactness |
| CN215366665U (en) * | 2021-08-10 | 2021-12-31 | 张琪 | Road roller for road and bridge traffic construction for reducing dust |
| CN113931042A (en) * | 2021-11-29 | 2022-01-14 | 聊城市交通发展有限公司 | Impact rolling construction method for fine-grained soil roadbed |
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2022
- 2022-01-27 CN CN202210102462.9A patent/CN114293437B/en active Active
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