CN110983901B - Construction method for irregular waveform pavement of test yard - Google Patents
Construction method for irregular waveform pavement of test yard Download PDFInfo
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- CN110983901B CN110983901B CN201911136542.0A CN201911136542A CN110983901B CN 110983901 B CN110983901 B CN 110983901B CN 201911136542 A CN201911136542 A CN 201911136542A CN 110983901 B CN110983901 B CN 110983901B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C9/00—Special pavings; Pavings for special parts of roads or airfields
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/48—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
- E01C19/4806—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ with solely rollers for consolidating or finishing
- E01C19/4826—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ with solely rollers for consolidating or finishing the materials being aggregate mixed with binders
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/50—Removable forms or shutterings for road-building purposes; Devices or arrangements for forming individual paving elements, e.g. kerbs, in situ
- E01C19/502—Removable forms or shutterings, e.g. side forms; Removable supporting or anchoring means therefor, e.g. stakes
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C7/00—Coherent pavings made in situ
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Road Paving Structures (AREA)
- Road Paving Machines (AREA)
Abstract
The invention discloses a construction method of an irregular waveform pavement of a test yard, which comprises the steps of designing a structural layer of the irregular waveform pavement, processing and manufacturing an irregular waveform template of a concrete base layer, sequentially pouring according to lane segmentation to form the concrete base layer, and paving the asphalt concrete base layer by taking the concrete base layer as a paving reference of the asphalt concrete base layer, thereby completing the construction of the irregular waveform pavement of the test yard. The irregular waveform pavement of the test yard has high construction forming precision, can meet the design requirement, is convenient and quick in construction operation, and reduces the construction cost.
Description
Technical Field
The invention relates to the field of pavement construction methods, in particular to a construction method of an irregular waveform pavement of a test yard.
Background
The asphalt severe road is an irregular waveform road surface, is a special test lane specific to a test field NVH test area, NVH is an English abbreviation of Noise, Vibration and Harshness (Noise, Vibration, Harshness), the research on the NVH characteristic is mainly used for improving the riding comfort of automobiles, is not only suitable for the development process of a whole new automobile product, but also is suitable for improving the riding comfort of the prior vehicle type, finding out the factors which have the greatest influence on the riding comfort, the riding comfort is improved by improving the vibration condition (amplitude reduction or frequency shift) of the excitation source or controlling the transmission of the vibration noise of the excitation source to the vehicle interior, therefore, the asphalt road is not only uneven in the driving direction but also uneven in the transverse direction, so that the height position of each tire is different when the vehicle drives on the asphalt road, the variation trend is different, therefore, the road surface meets relevant test requirements, and irregular rough roads and steering force evaluation roads are the road surfaces.
At the present stage, the construction machinery manufacturing industry does not develop a paving machine and a rolling machine which are suitable for the pavement construction, and the paving machine and the rolling machine can be used for paving and rolling the special pavement at one time, so that the construction is carried out by selecting the currently available mechanical equipment through design measures and modifying to a certain degree.
Disclosure of Invention
The invention aims to solve the technical problem of providing a construction method of irregular waveform road surfaces of a test yard, which can accurately construct irregular waveform road surfaces with uneven undulation in the driving direction and the vertical direction, has high construction forming precision, can meet the design requirement, is convenient and quick in construction operation and reduces the construction cost.
The technical scheme of the invention is as follows:
a construction method of irregular waveform pavement of a test yard specifically comprises the following steps:
(1) designing an irregular waveform pavement structure layer: the irregular waveform pavement is in a structure of a concrete base layer and an asphalt concrete surface layer, and the irregular waveform modeling is formed by modeling the concrete base layer; the irregular wavy pavement is divided into a plurality of roads along the vertical direction of the advancing, and each road is respectively molded by a concrete base layer;
(2) and processing and manufacturing the irregular waveform template of the concrete base layer: processing and manufacturing a wave-shaped shaping steel sheet in sections according to the irregular wave-shaped curve of the longitudinal section of each road surface, connecting each section of wave-shaped shaping steel sheet with the side mould of the road surface channel steel in a spot welding manner, and adjusting the height of the template according to the design elevation so as to form the irregular wave-shaped template of the concrete base layer;
(3) after the concrete base layer irregular waveform templates of a certain section of a certain road surface are combined, pouring and molding the concrete base layer until the concrete base layer of the irregular waveform road surface is completely poured, scraping the concrete surface according to the top surface of the concrete base layer irregular waveform templates after the concrete base layer is completely poured, and finally forming the top surface of the concrete base layer meeting the design waveform requirement to be used as a leveling control reference for paving the asphalt concrete surface layer;
(4) adopt small-size paver to pave the asphalt concrete surface course, small-size paver screed's leveling device uses concrete base top surface for the benchmark of making level, according to thickness control pavement elevation, small-size road roller is followed closely and is rolled, rolls closely till asphalt concrete, and the surface is received the light and is leveled.
The irregular wavy pavement comprises a foundation, a concrete base layer, an asphalt concrete lower surface layer and an asphalt concrete upper surface layer from bottom to top, wherein the concrete base layer is a C20 concrete rigid base layer, and 0.3-0.6kg/m of concrete is sprayed on the surface of the concrete base layer2The modified emulsified asphalt binder oil is characterized in that when the lower asphalt concrete surface layer is paved, a layer of anti-crack-reflection glass fiber grating is paved on the surface of a concrete base layer, the lower asphalt concrete surface layer adopts AC-16C 70# road petroleum asphalt concrete with the thickness of 6cm, the upper asphalt concrete surface layer adopts AC-13C SBS modified asphalt concrete with the thickness of 4cm, and 0.3-0.6kg/m is sprayed between the lower asphalt concrete surface layer and the upper asphalt concrete surface layer2The modified emulsified asphalt viscous layer oil.
The method comprises the following specific steps of manufacturing the wave-shaped plastic steel sheet by segmented processing according to the irregular wave-shaped curve of the longitudinal section of each road surface: firstly, dividing irregular wave curves of a longitudinal section, wherein the lengths of each divided wave curve section along the X-axis direction are equal, then selecting steel sheets with equal lengths to form wave shaping steel sheets after cutting, and the width of the steel sheets before cutting is larger than the length from the maximum wave crest to the minimum wave trough along the Y-axis direction in the whole irregular road surface wave curve; and then, manufacturing a segmented data model according to the irregular waveform curve of the longitudinal section of each road surface, inputting the data of the segmented data model into a numerical control plasma cutting machine, cutting each section of waveform shaping steel sheet by the numerical control plasma cutting machine, and marking the traveling direction, the lane number and the segment number on each section of the cut waveform shaping steel sheet in sequence.
The wave-shaped plastic steel sheet is connected with the side die of the road surface channel steel in a spot welding mode, the concrete base layer is poured and molded after the irregular wave-shaped formwork of the concrete base layer of a certain section of a certain road surface is combined, the wave-shaped plastic steel sheet is taken down from the channel steel after one section of pouring is finished, the wave-shaped plastic steel sheet of the next section is connected with the channel steel in a spot welding mode, and the formwork combination of the next section is poured.
The width of each road surface is set to be 60-70cm, the paving width of the small paver is 60-70cm, and the width of a compaction wheel of the small road roller is 60-70 cm.
The leveling device adjustment of small-size paver screed install the screed both sides, the leveling device chooses for use contact leveling device or non-contact leveling device, contact leveling device hinges in the dwang of screed lateral part and hinges in the screed of dwang bottom including the top, through dwang turned angle perception altitude variation, non-contact leveling device is including ultrasonic ranging sensor, thereby ultrasonic ranging sensor measures the distance perception altitude variation to ground through sending the ultrasonic wave.
The travelling speed of the small paver is controlled to be 1.5-2.0m/min, so that the leveling device of the ironing plate of the paver has enough reaction time, and meanwhile, the thickness of a spreading layer is detected at intervals of 1m, and the deviation correction is adjusted in time; the rolling times of the small road roller are set to be 8-10 times until the asphalt concrete is compacted and the surface is smooth.
The invention has the advantages that:
according to the invention, the vertical direction of the travelling crane is divided into a plurality of paths, each road surface is cut into the waveform shaping steel sheets according to the waveform segments, then the concrete base layer is sequentially poured according to the path segments, and finally the concrete base layer is used as the paving reference of the asphalt concrete surface layer to pave the asphalt concrete surface layer, so that the construction of the irregular waveform road surface of the test yard is completed, the construction forming precision is high, the design requirement can be met, the construction operation is convenient and fast, and the construction cost is reduced.
Drawings
FIG. 1 is a transverse cross-sectional view of an irregular wavy road surface of the test yard of the present invention.
FIG. 2 is a plan view of an irregular wavy road surface of the test yard of the present invention.
FIG. 3 is an irregular waveform diagram of each vertical section of the irregular waveform pavement of the test yard.
Fig. 4 is a schematic structural diagram of the irregular waveform form of the concrete base layer of the invention.
FIG. 5 is a schematic illustration of the construction of a concrete foundation according to the present invention.
Fig. 6 is a schematic structural diagram of the small paver of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A construction method of irregular waveform pavement of a test yard specifically comprises the following steps:
(1) designing an irregular waveform pavement structure layer: referring to fig. 1, the irregular wavy pavement comprises a foundation 1, a concrete base layer 2, an asphalt concrete lower surface layer 3 and an asphalt concrete upper surface layer 4 from bottom to top, wherein the concrete base layer 2 is a C20 concrete rigid base layer, and 0.3-0.6kg/m of concrete is sprayed on the surface of the concrete base layer2The modified emulsified asphalt viscous layer oil of the asphalt,when the lower asphalt concrete surface layer 3 is paved, a layer of crack-reflection-preventing glass fiber grating is paved on the surface of the concrete base layer 2, the lower asphalt concrete surface layer 3 is made of AC-16C 70# road petroleum asphalt concrete and has the thickness of 6cm, the upper asphalt concrete surface layer 4 is made of AC-13C SBS modified asphalt concrete and has the thickness of 4cm, and 0.3-0.6kg/m is sprayed between the lower asphalt concrete surface layer 3 and the upper asphalt concrete surface layer 42The irregular waveform modeling is formed by molding the concrete base layer 2; the irregular wavy pavement is divided into a plurality of roads along the vertical direction of the advancing, and each road 5 is respectively molded with a concrete base layer (see figure 2);
(2) and processing and manufacturing the irregular waveform template of the concrete base layer: the method comprises the following steps of manufacturing a wave-shaped shaping steel sheet by subsection processing according to an irregular wave-shaped curve (shown in figure 3) of a longitudinal section 6 of each road surface 5: firstly, dividing irregular wave curves of a longitudinal section, wherein the lengths of each divided wave curve section along the X-axis direction are equal, then selecting steel sheets with equal lengths to form wave shaping steel sheets after cutting, and the width of the steel sheets before cutting is larger than the length from the maximum wave crest to the minimum wave trough along the Y-axis direction in the whole irregular road surface wave curve; then, a segmented data model is manufactured according to the irregular waveform curve of the longitudinal section of each road surface, the data of the segmented data model is input into a numerical control plasma cutting machine, the numerical control plasma cutting machine cuts each section of the waveform shaping steel sheet 7, and marks 8 of the advancing direction, the lane number and the segment number are made on each section of the cut waveform shaping steel sheet 7 in sequence; each section of the wave-shaped shaping steel sheet 7 is connected with a side die of a road channel steel 9 in a spot welding mode (see figure 4), and the height of the template is adjusted according to the design elevation, so that the irregular wave-shaped template of the concrete base layer is formed;
(3) after the concrete base layer irregular waveform template of a certain section of a certain road surface is combined, the concrete base layer is poured and molded, after the pouring of one section is finished, a waveform shaping steel sheet is taken down from a channel steel, the waveform shaping steel sheet of the next section is connected to the channel steel in a spot welding manner, the combination and the pouring of the template of the next section are carried out until the concrete base layer of the irregular waveform road surface is completely poured, after the concrete base layer is completely poured, a scraper 11 is adopted to scrape the concrete surface (see figure 5) according to the top surface of the concrete base layer irregular waveform template 10, and finally, a concrete base layer top surface 12 meeting the design waveform requirement is formed and is used as a leveling control reference for paving an asphalt concrete lower surface layer and an asphalt concrete upper surface layer;
(4) the width of each road surface is set to be 60-70cm, the paving width of a small paver is 60-70cm, the width of a compaction wheel of the small road roller is 60-70cm, the small paver is adopted to pave an asphalt concrete surface layer, the leveling device of the screed plate 14 of the small paver 13 takes the top surface of a concrete base layer as the leveling reference (see figure 6), the paving elevation is controlled according to the thickness, the advancing speed of the small paver is controlled to be 1.5-2.0m/min, so that the leveling device of the screed plate of the small paver has enough reaction time, the thickness of a paving layer is detected at intervals of 1m, and the correction is adjusted in time; the small road roller is closely followed with rolling, and the rolling times of the small road roller are set to be 8-10 times because the small road roller is light in weight and needs to be increased properly until the asphalt concrete is compacted and the surface is smooth and flat.
Wherein, screed both sides are installed in the leveling device adjustment of small-size paver screed, and contact leveling device or non-contact leveling device is chooseed for use to the leveling device, and contact leveling device articulates in dwang 15 of screed 14 lateral part and articulates in the screed 16 (see fig. 6) of dwang 15 bottom including the top, through dwang 15 turned angle perception altitude variation, and non-contact leveling device is including ultrasonic ranging sensor, thereby ultrasonic ranging sensor measures the distance perception altitude variation to ground through sending the ultrasonic wave.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. A construction method of irregular waveform pavement of a test yard is characterized by comprising the following steps: the method specifically comprises the following steps:
(1) designing an irregular waveform pavement structure layer: the irregular waveform pavement is in a structure of a concrete base layer and an asphalt concrete surface layer, and the irregular waveform modeling is formed by modeling the concrete base layer; the irregular wavy pavement is divided into a plurality of roads along the vertical direction of the advancing, and each road is respectively molded by a concrete base layer;
(2) and processing and manufacturing the irregular waveform template of the concrete base layer: processing and manufacturing a wave-shaped shaping steel sheet in sections according to the irregular wave-shaped curve of the longitudinal section of each road surface, connecting each section of wave-shaped shaping steel sheet with the side mould of the road surface channel steel in a spot welding manner, and adjusting the height of the template according to the design elevation so as to form the irregular wave-shaped template of the concrete base layer;
(3) after the concrete base layer irregular waveform templates of a certain section of a certain road surface are combined, pouring and molding the concrete base layer until the concrete base layer of the irregular waveform road surface is completely poured, scraping the concrete surface according to the top surface of the concrete base layer irregular waveform templates after the concrete base layer is completely poured, and finally forming the top surface of the concrete base layer meeting the design waveform requirement to be used as a leveling control reference for paving the asphalt concrete surface layer;
(4) adopt small-size paver to pave the asphalt concrete surface course, small-size paver screed's leveling device uses concrete base top surface for the benchmark of making level, according to thickness control pavement elevation, small-size road roller is followed closely and is rolled, rolls closely till asphalt concrete, and the surface is received the light and is leveled.
2. The construction method of the irregular wavy pavement of the test yard according to claim 1, characterized in that: the irregular wavy pavement comprises a foundation, a concrete base layer, an asphalt concrete lower surface layer and an asphalt concrete upper surface layer from bottom to top, wherein the concrete base layer is a C20 concrete rigid base layer, and 0.3-0.6kg/m of concrete is sprayed on the surface of the concrete base layer2When the lower asphalt concrete layer is paved, a layer of anti-reflection crack glass fiber grating is paved on the surface of a concrete base layer, the lower asphalt concrete layer adopts AC-16C 70# road petroleum asphalt concrete with the thickness of 6cm, the upper asphalt concrete layer adopts AC-13C SBS modified asphalt concrete with the thickness of 4cm, and the lower asphalt concrete layerSpraying 0.3-0.6kg/m between the upper surface of the asphalt concrete and the upper surface of the asphalt concrete2The modified emulsified asphalt viscous layer oil.
3. The construction method of the irregular wavy pavement of the test yard according to claim 1, characterized in that: the method comprises the following specific steps of manufacturing the wave-shaped plastic steel sheet by segmented processing according to the irregular wave-shaped curve of the longitudinal section of each road surface: firstly, dividing irregular wave curves of a longitudinal section, wherein the lengths of each divided wave curve section along the X-axis direction are equal, then selecting steel sheets with equal lengths to form wave shaping steel sheets after cutting, and the width of the steel sheets before cutting is larger than the length from the maximum wave crest to the minimum wave trough along the Y-axis direction in the whole irregular road surface wave curve; and then, manufacturing a segmented data model according to the irregular waveform curve of the longitudinal section of each road surface, inputting the data of the segmented data model into a numerical control plasma cutting machine, cutting each section of waveform shaping steel sheet by the numerical control plasma cutting machine, and marking the traveling direction, the lane number and the segment number on each section of the cut waveform shaping steel sheet in sequence.
4. The construction method of the irregular wavy pavement of the test yard according to claim 1, characterized in that: the wave-shaped plastic steel sheet is connected with the side die of the road surface channel steel in a spot welding mode, the concrete base layer is poured and molded after the irregular wave-shaped formwork of the concrete base layer of a certain section of a certain road surface is combined, the wave-shaped plastic steel sheet is taken down from the channel steel after one section of pouring is finished, the wave-shaped plastic steel sheet of the next section is connected with the channel steel in a spot welding mode, and the formwork combination of the next section is poured.
5. The construction method of the irregular wavy pavement of the test yard according to claim 1, characterized in that: the width of each road surface is set to be 60-70cm, the paving width of the small paver is 60-70cm, and the width of a compaction wheel of the small road roller is 60-70 cm.
6. The construction method of the irregular wavy pavement of the test yard according to claim 1, characterized in that: the leveling device adjustment of small-size paver screed install the screed both sides, the leveling device chooses for use contact leveling device or non-contact leveling device, contact leveling device hinges in the dwang of screed lateral part and hinges in the screed of dwang bottom including the top, through dwang turned angle perception altitude variation, non-contact leveling device is including ultrasonic ranging sensor, thereby ultrasonic ranging sensor measures the distance perception altitude variation to ground through sending the ultrasonic wave.
7. The construction method of the irregular wavy pavement of the test yard according to claim 1, characterized in that: the travelling speed of the small paver is controlled to be 1.5-2.0m/min, so that the leveling device of the ironing plate of the paver has enough reaction time, and meanwhile, the thickness of a spreading layer is detected at intervals of 1m, and the deviation correction is adjusted in time; the rolling times of the small road roller are set to be 8-10 times until the asphalt concrete is compacted and the surface is smooth.
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