CN118110077A - Highway pavement asphalt concrete construction process - Google Patents
Highway pavement asphalt concrete construction process Download PDFInfo
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- CN118110077A CN118110077A CN202410150275.7A CN202410150275A CN118110077A CN 118110077 A CN118110077 A CN 118110077A CN 202410150275 A CN202410150275 A CN 202410150275A CN 118110077 A CN118110077 A CN 118110077A
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- 238000010276 construction Methods 0.000 title claims abstract description 68
- 238000000034 method Methods 0.000 title claims abstract description 47
- 239000011384 asphalt concrete Substances 0.000 title claims abstract description 43
- 230000008569 process Effects 0.000 title claims abstract description 33
- 239000000428 dust Substances 0.000 claims abstract description 52
- 238000012423 maintenance Methods 0.000 claims abstract description 36
- 238000005507 spraying Methods 0.000 claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000007921 spray Substances 0.000 claims abstract description 18
- 230000003287 optical effect Effects 0.000 claims abstract description 15
- 239000002245 particle Substances 0.000 claims abstract description 9
- 239000003595 mist Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims description 27
- 238000003756 stirring Methods 0.000 claims description 20
- 239000004575 stone Substances 0.000 claims description 11
- 238000005553 drilling Methods 0.000 claims description 9
- 238000004364 calculation method Methods 0.000 claims description 6
- 238000013210 evaluation model Methods 0.000 claims description 6
- 238000005096 rolling process Methods 0.000 claims description 5
- 230000004888 barrier function Effects 0.000 claims description 4
- 230000008859 change Effects 0.000 claims description 4
- 239000004567 concrete Substances 0.000 claims description 4
- 239000002994 raw material Substances 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 claims 1
- 230000001678 irradiating effect Effects 0.000 claims 1
- 238000005259 measurement Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 239000010426 asphalt Substances 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 230000000994 depressogenic effect Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000001680 brushing effect Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000007405 data analysis Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
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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
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/03—Arrangements for curing paving; Devices for applying curing means; Devices for laying prefabricated underlay, e.g. sheets, membranes; Protecting paving under construction or while curing, e.g. use of tents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
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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
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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
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/01—Devices or auxiliary means for setting-out or checking the configuration of new surfacing, e.g. templates, screed or reference line supports; Applications of apparatus for measuring, indicating, or recording the surface configuration of existing surfacing, e.g. profilographs
-
- 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
- E01C23/00—Auxiliary devices or arrangements for constructing, repairing, reconditioning, or taking-up road or like surfaces
- E01C23/06—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road
- E01C23/09—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges
- E01C23/096—Devices or arrangements for working the finished surface; Devices for repairing or reconditioning the surface of damaged paving; Recycling in place or on the road for forming cuts, grooves, or recesses, e.g. for making joints or channels for markings, for cutting-out sections to be removed; for cleaning, treating, or filling cuts, grooves, recesses, or fissures; for trimming paving edges for forming, opening-out, cleaning, drying or heating and filling
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H3/00—Applying liquids to roads or like surfaces, e.g. for dust control; Stationary flushing devices
- E01H3/02—Mobile apparatus, e.g. watering-vehicles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/94—Investigating contamination, e.g. dust
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F17/00—Digital computing or data processing equipment or methods, specially adapted for specific functions
- G06F17/10—Complex mathematical operations
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- Civil Engineering (AREA)
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Abstract
The invention relates to the technical field of highway construction, in particular to a highway pavement asphalt concrete construction process, which comprises the following steps: s1, a maintenance person builds a road condition model in a background computer in advance, analyzes the expressway condition to obtain the road surface condition of the current road, and determines whether to carry out construction maintenance on the road; s2, a maintenance person enters an area to be maintained of the expressway, and a safety guardrail and a warning board are placed to form a construction area; s3, driving the spraying vehicle into a construction area for parking, and measuring the condition of dust particles in the air by an optical method. According to the invention, dust in a construction area is detected by an optical method, when the dust in the current construction area is detected to be larger than the set standard, the spray vehicle is enabled to spray water mist, the problems that the sight of a running vehicle is unclear, the normal running of the vehicle is affected, and potential safety hazards are brought are solved, and the intelligent control can be realized, so that the water consumption is reduced.
Description
Technical Field
The invention belongs to the technical field of highway construction, and particularly relates to a highway pavement asphalt concrete construction process.
Background
The expressway is a highway specially used for automobile high-speed running, can generally adapt to the speed of 120 km/h or higher, and is characterized in that the pavement is flat, the traffic flow is large, the whole journey is closed, the running speed is high, the road facilities are perfect, and the like, the construction of the expressway can promote the regional economic development, improve the traffic transportation efficiency, alleviate the problems of traffic jam and the like, meanwhile, the expressway is an important component part of a modern logistics and supply chain system, has important significance in the aspects of guaranteeing production, life, emergency rescue and the like, and needs to take a series of measures to ensure the safety and the efficiency in the aspect of operation management of the expressway, such as strengthening road condition monitoring, implementing traffic control, improving the emergency rescue capability and the like, and in addition, the expressway needs to be regularly maintained and maintained to keep a good running state; the highway is characterized in that cracks and depressions are gradually formed in the pavement in the wearing process of vehicles, normal running of the vehicles is affected, maintenance staff needs to carry out maintenance construction on the pavement of the highway in time, asphalt concrete technology is adopted to carry out repair construction in the maintenance construction process, the current depressed pavement is repaired, the whole highway cannot be occupied, broken stones in the depressed pavement are often required to be dug out and cleaned out when the asphalt concrete is used for construction, asphalt concrete is used for paving, more dust is often generated in the construction process, the vehicle is not clear in the air, and the normal running of the vehicles is affected, so that potential safety hazards are brought.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a construction process of highway pavement asphalt concrete, which aims to solve the technical problems.
In order to achieve the above purpose, the present invention provides the following technical solutions: the construction process of the highway pavement asphalt concrete comprises the following steps:
S1, a maintenance person builds a road condition model in a background computer in advance, analyzes the expressway condition to obtain the road surface condition of the current road, and determines whether to carry out construction maintenance on the road;
S2, a maintenance person enters an area to be maintained of the expressway, and a safety guardrail and a warning board are placed to form a construction area;
s3, driving the spraying vehicle into a construction area, parking, measuring dust particles in the air by an optical method, spraying water by the spraying vehicle when dust is detected to be contained in the air, and stopping spraying water by the spraying vehicle when the dust is not detected to be contained in the air;
s4, selecting matched asphalt concrete materials according to the analyzed pavement conditions, and proportioning and stirring;
S5, drilling a pavement pit part by using a drill bit, taking out the crushed stone materials in the pit, and collecting by using a transport vehicle;
s6, paving the prepared asphalt concrete material in the pits, continuously rolling, paving the material on the road surface, measuring the flatness of the road surface by using a laser road surface flatness tester, and keeping the road surface flatness;
And S7, after the asphalt concrete is solidified, the safety barrier and the warning sign are removed, and the construction is completed.
Preferentially, the road condition model expression in the step S1 is:
Wherein P is a road surface condition index, dij is a single deduction value of a j-th damage type in i-th damage, w is a single weight, n is a single damage type number, m is a single damage type number, the value of P is 0-100, and the closer the value of P is to 100, the better the road condition is;
The evaluation model expression is:
Q＝P*w+R*w+I*w+F*w
wherein Q is an evaluation model, P is a road surface condition index, w is a weight coefficient, R is a road surface quality index, I is road performance, and F is a road surface resistance index;
and evaluating the road condition of the expressway through the road condition model.
Preferentially, in the step S1, when the road condition is analyzed to be poor, the construction maintenance is judged to be needed, the maintenance personnel runs the vehicle, the expressway is detected and checked to see the area needing to be maintained, when the road condition is analyzed to be excellent, the road is judged not to be needed to be constructed and maintained, and the maintenance personnel analyzes the next road.
Preferentially, in the step S3, a laser emitter is installed on the spraying vehicle, a laser receiver is installed on a road, the laser emitter emits light beams, when the light beams pass through the air, the light beams are scattered by particulate matters in the air, the intensity of the light is reduced, the emitted light beams are received by the laser receiver, and the concentration of dust particles in the air is determined by measuring the intensity change of the light beams.
Preferably, the light velocity intensity variation calculation formula is:
where e is the intensity of the beam, a is the distance travelled by the beam, and β is the scattering coefficient;
A dust concentration judgment standard is established in the laser receiver, when the light beam is detected to reach the judgment standard, the dust concentration in the air is judged to be high, a signal is sent out at the moment, the spraying vehicle is enabled to spray, when the light beam is detected to not reach the judgment standard, the dust concentration in the air is judged to be low, at the moment, a signal is sent out, and the spraying vehicle is enabled to stop spraying.
Preferentially, in the step S4, the proportion of raw materials in concrete is measured in a weighing mode, so that the demand is met, the materials are placed into a stirring cylinder through the stirring cylinder to be stirred for 10min, water is continuously added into the stirring cylinder to adjust the viscosity of the materials in the stirring process, and the materials are transported after the stirring is completed.
Preferentially, in the step S5, the step of drilling the open-circuit surface is realized by aligning the drill bit to the hollow pavement in a mechanical way, starting the drill bit, crushing the pavement, moving the drill bit, uniformly crushing the hollow pavement, and after drilling, detecting the high dust concentration in the air by an optical method at the moment, so that the spray vehicle sprays, sprays water mist and adsorbs dust.
Preferably, in the step S5, broken stones are cleaned by manually shoveling the shovel, and the cleaned stones are collected in a concentrated manner.
Preferentially, in the step S6, the road surface is rolled through the road roller, the road surface is flattened, the laser road surface flatness tester irradiates the road surface to be measured by sending out laser beams to the road surface, converts optical signals into electric signals by receiving returned laser beams, and processes and analyzes the electric signals through the control system to obtain whether the road surface is flat or not.
Preferentially, the calculation formula of the laser road surface flatness tester is as follows:
I＝[n/(n+m)]*∑d
wherein, the I planeness index, n is the length of continuous concave quantity, m is the length of continuous high convex quantity, and d is the elevation difference.
Compared with the prior art, the invention has the following beneficial effects:
According to the invention, the road condition of the expressway is analyzed in advance before construction to judge whether the expressway needs construction maintenance, and when the construction maintenance is performed, dust in a construction area is detected by an optical method, and when the dust in the current construction area is detected to be larger than a set standard, a spray vehicle is enabled to spray water mist, so that flying of the dust is reduced, the flying condition of the dust on the expressway can be effectively relieved, the problems that the sight of a running vehicle is unclear, the normal running of the vehicle is influenced, potential safety hazard is brought, intelligent control is realized, the water consumption is reduced, and resources are saved.
Detailed Description
All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The invention provides a technical scheme that: the construction process of the highway pavement asphalt concrete comprises the following steps:
S1, a maintenance person builds a road condition model in a background computer in advance, analyzes the expressway condition to obtain the road surface condition of the current road, and determines whether to carry out construction maintenance on the road;
S2, a maintenance person enters an area to be maintained of the expressway, and a safety guardrail and a warning board are placed to form a construction area;
s3, driving the spraying vehicle into a construction area, parking, measuring dust particles in the air by an optical method, spraying water by the spraying vehicle when dust is detected to be contained in the air, and stopping spraying water by the spraying vehicle when the dust is not detected to be contained in the air;
s4, selecting matched asphalt concrete materials according to the analyzed pavement conditions, and proportioning and stirring;
S5, drilling a pavement pit part by using a drill bit, taking out the crushed stone materials in the pit, and collecting by using a transport vehicle;
s6, paving the prepared asphalt concrete material in the pits, continuously rolling, paving the material on the road surface, measuring the flatness of the road surface by using a laser road surface flatness tester, and keeping the road surface flatness;
And S7, after the asphalt concrete is solidified, the safety barrier and the warning sign are removed, and the construction is completed.
Further, the road condition model expression in the step S1 is:
Wherein P is a road surface condition index, dij is a single deduction value of a j-th damage type in i-th damage, w is a single weight, n is a single damage type number, m is a single damage type number, the value of P is 0-100, and the closer the value of P is to 100, the better the road condition is;
The evaluation model expression is:
Q＝P*w+R*w+I*w+F*w
wherein Q is an evaluation model, P is a road surface condition index, w is a weight coefficient, R is a road surface quality index, I is road performance, and F is a road surface resistance index;
the road surface condition model is described according to road surface flatness, breakage rate and rut depth parameters, and is obtained by means of analyzing road surface images, laser scanning data and the like, and the parameters can reflect the service condition and performance of the road surface and provide basis for maintenance and repair of the road surface;
and evaluating the road condition of the expressway through the road condition model.
Further, in the step S1, when the road condition is analyzed to be poor, it is determined that construction maintenance is required, a maintenance person runs a vehicle, detects and checks an area requiring maintenance on the expressway, when the road condition is analyzed to be excellent, it is determined that construction maintenance is not required on the road, and the maintenance person analyzes the next road.
Further, in the step S3, a laser emitter is arranged on the spraying vehicle, a laser receiver is arranged on the road, the laser emitter emits light beams, when the light beams pass through the air, the light beams are scattered by particulate matters in the air, so that the intensity of the light is reduced, the emitted light beams are received by the laser receiver, and the concentration of dust particles in the air is determined by measuring the intensity change of the light beams;
When light irradiates on particles suspended in air, light scattering occurs, and under the condition that the optical system and the dust property are certain, the scattered light intensity is proportional to the dust concentration, and the dust mass concentration can be obtained through measuring the scattered light intensity and converting.
Further, the calculation formula of the change of the light intensity is as follows:
where e is the intensity of the beam, a is the distance travelled by the beam, and β is the scattering coefficient;
A dust concentration judgment standard is established in the laser receiver, when the light beam is detected to reach the judgment standard, the dust concentration in the air is judged to be high, a signal is sent out at the moment, the spraying vehicle is enabled to spray, when the light beam is detected to not reach the judgment standard, the dust concentration in the air is judged to be low, at the moment, a signal is sent out, and the spraying vehicle is enabled to stop spraying.
Further, in the step S4, the proportion of raw materials in concrete is measured in a weighing mode, the demand is met, the materials are placed into a stirring cylinder through the stirring cylinder to be stirred for 10min, water is continuously added into the stirring cylinder to adjust the viscosity of the materials in the stirring process, and the materials are transported after the stirring is completed.
Further, in the step S5, the step of drilling the open-circuit surface is performed by aligning the drill bit to the hollow pavement in a mechanical mode, starting the drill bit, crushing the pavement, moving the drill bit to uniformly crush the hollow pavement, and after drilling, detecting that the dust concentration in the air is high by an optical method at the moment, so that the spray vehicle sprays, sprays water mist and adsorbs dust.
Further, broken stones are cleaned in the S5 step by manually shoveling the shovel, and the cleaned stones are collected in a concentrated mode.
Further, in the step S6, the road surface is rolled through the road roller to flatten the road surface, the laser road surface flatness tester irradiates the road surface to be measured by sending out laser beams to the road surface, converts optical signals into electric signals by receiving returned laser beams, and processes and analyzes the electric signals through the control system to obtain whether the road surface is flat or not.
Further, the calculation formula of the laser road surface flatness tester is:
I＝[n/(n+m)]*∑d
wherein, the flatness index is I, n is the length of continuous low concave quantity, m is the length of continuous high convex quantity, and d is the elevation difference;
the laser road surface flatness tester has the following advantages: the non-contact measurement can not damage the road surface; the measurement precision is high, and can reach the precision of 0.2 mm; the measuring speed is high, and the rapid and continuous measurement can be realized; various parameters such as flatness, rut and construction depth can be measured simultaneously; the operation is simple and convenient, the data processing capacity is high, and the automatic measurement and data analysis can be realized.
Example 1
The construction process of the highway pavement asphalt concrete comprises the following steps:
S1, a maintenance person builds a road condition model in a background computer in advance, analyzes the expressway condition to obtain the road surface condition of the current road, and determines whether to carry out construction maintenance on the road;
S2, a maintenance person enters an area to be maintained of the expressway, and a safety guardrail and a warning board are placed to form a construction area;
s3, driving the spraying vehicle into a construction area, parking, measuring dust particles in the air by an optical method, spraying water by the spraying vehicle when dust is detected to be contained in the air, and stopping spraying water by the spraying vehicle when the dust is not detected to be contained in the air;
s4, selecting matched asphalt concrete materials according to the analyzed pavement conditions, and proportioning and stirring;
S5, drilling a pavement pit part by using a drill bit, taking out the crushed stone materials in the pit, and collecting by using a transport vehicle;
s6, paving the prepared asphalt concrete material in the pits, continuously rolling, paving the material on the road surface, measuring the flatness of the road surface by using a laser road surface flatness tester, and keeping the road surface flatness;
And S7, after the asphalt concrete is solidified, the safety barrier and the warning sign are removed, and the construction is completed.
Comparative example 1
The construction process of the highway pavement asphalt concrete comprises the following steps:
S1, preparing required asphalt concrete which comprises asphalt, sand and cement materials;
s2, transporting the asphalt concrete to a highway for construction, and paving the asphalt concrete;
S3, initially pressing the paved asphalt concrete by using a road roller, and ensuring firm bonding between the asphalt concrete and a base layer;
S4, cutting off the joint between the old asphalt concrete and the new asphalt concrete by a cutting machine in the construction process, and brushing an emulsified asphalt material at the joint of the new asphalt concrete;
s5, curing the asphalt concrete by adopting a sprinkling and grass curtain covering mode.
In the embodiment 1, the road condition of the expressway is analyzed in advance before construction to judge whether the current expressway needs construction maintenance, and when the construction maintenance is performed, dust in a construction area is detected by an optical method, and when the dust in the current construction area is detected to be larger than a set standard, a spray vehicle is enabled to spray water mist, so that flying of the dust is reduced, the flying condition of the dust on the expressway can be effectively relieved, the problems that the sight of a running vehicle is unclear, the normal running of the vehicle is influenced, potential safety hazards are brought are solved, intelligent control is realized, the water consumption is reduced, and resources are saved;
in comparative example 1, only the road surface of the expressway is paved, dust generated in the construction process is not treated in the paving process, so that the dust flies in the paving process, the sight is influenced, the road condition is difficult to see by driving vehicles, traffic construction is caused, the existing dust treatment mode is to reduce the dust in a water spraying mode, but when water spraying equipment is used for spraying water, the dust is always in a continuous working state, an intelligent control method is not provided, the dust is sprayed by water mist and is on the ground for a certain time, and the dust cannot fly, so that the resource waste is caused.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The construction process of the highway pavement asphalt concrete is characterized by comprising the following steps of:
S1, a maintenance person builds a road condition model in a background computer in advance, analyzes the expressway condition to obtain the road surface condition of the current road, and determines whether to carry out construction maintenance on the road;
S2, a maintenance person enters an area to be maintained of the expressway, and a safety guardrail and a warning board are placed to form a construction area;
s3, driving the spraying vehicle into a construction area, parking, measuring dust particles in the air by an optical method, spraying water by the spraying vehicle when dust is detected to be contained in the air, and stopping spraying water by the spraying vehicle when the dust is not detected to be contained in the air;
s4, selecting matched asphalt concrete materials according to the analyzed pavement conditions, and proportioning and stirring;
S5, drilling a pavement pit part by using a drill bit, taking out the crushed stone materials in the pit, and collecting by using a transport vehicle;
s6, paving the prepared asphalt concrete material in the pits, continuously rolling, paving the material on the road surface, measuring the flatness of the road surface by using a laser road surface flatness tester, and keeping the road surface flatness;
And S7, after the asphalt concrete is solidified, the safety barrier and the warning sign are removed, and the construction is completed.
2. The expressway road surface asphalt concrete construction process according to claim 1, wherein the road condition model expression in step S1 is:
Wherein P is a road surface condition index, dij is a single deduction value of a j-th damage type in i-th damage, w is a single weight, n is a single damage type number, m is a single damage type number, the value of P is 0-100, and the closer the value of P is to 100, the better the road condition is;
The evaluation model expression is:
Q＝P*w+R*w+I*w+F*w
wherein Q is an evaluation model, P is a road surface condition index, w is a weight coefficient, R is a road surface quality index, I is road performance, and F is a road surface resistance index;
and evaluating the road condition of the expressway through the road condition model.
3. The highway pavement asphalt concrete construction process according to claim 1, wherein: and S1, judging that construction maintenance is needed when the road condition is analyzed to be poor, driving a vehicle by a maintenance staff, detecting and checking the area needing maintenance on the expressway, judging that the road does not need construction maintenance when the road condition is analyzed to be excellent, and analyzing the next road by the maintenance staff.
4. The highway pavement asphalt concrete construction process according to claim 1, wherein: and S3, a laser transmitter is arranged on the spraying vehicle, a laser receiver is arranged on the road, the laser transmitter emits light beams, when the light beams pass through the air, the light beams are dispersed by particulate matters in the air, the intensity of the light is reduced, the emitted light beams are received by the laser receiver, and the concentration of dust particles in the air is determined by measuring the intensity change of the light beams.
5. The construction process of highway pavement asphalt concrete according to claim 4, wherein the light speed variation calculation formula is:
where e is the intensity of the beam, a is the distance travelled by the beam, and β is the scattering coefficient;
A dust concentration judgment standard is established in the laser receiver, when the light beam is detected to reach the judgment standard, the dust concentration in the air is judged to be high, a signal is sent out at the moment, the spraying vehicle is enabled to spray, when the light beam is detected to not reach the judgment standard, the dust concentration in the air is judged to be low, at the moment, a signal is sent out, and the spraying vehicle is enabled to stop spraying.
6. The highway pavement asphalt concrete construction process according to claim 1, wherein: and S4, in the concrete proportioning step, the proportion of raw materials in the concrete is measured in a weighing mode, the materials are placed into a stirring barrel to be stirred through the stirring barrel, the stirring time is 10min, water is continuously added into the stirring barrel to adjust the viscosity of the materials in the stirring process, and the materials are transported after the stirring is completed.
7. The highway pavement asphalt concrete construction process according to claim 1, wherein: and S5, aligning the drill bit to the hollow pavement in a mechanical mode, starting the drill bit, crushing the pavement, moving the drill bit, uniformly crushing the hollow pavement, and after drilling, detecting high dust concentration in the air by an optical method at the moment, so that the spray vehicle sprays, sprays water mist and adsorbs dust.
8. The highway pavement asphalt concrete construction process according to claim 1, wherein: and S5, cleaning broken stones by manually shoveling the shovel, and collecting the cleaned stones in a concentrated manner.
9. The highway pavement asphalt concrete construction process according to claim 1, wherein: and S6, rolling the road surface through the road roller, flattening the road surface, irradiating the road surface to be measured by the laser road surface flatness tester through sending a laser beam to the road surface, converting the optical signal into an electric signal through receiving the returned laser beam, and processing and analyzing the electric signal through the control system to obtain whether the road surface is flat or not.
10. The expressway road surface asphalt concrete construction process according to claim 9, wherein the calculation formula of the laser road surface flatness tester is:
I＝[n/(n+m)]*∑d
wherein, the I planeness index, n is the length of continuous concave quantity, m is the length of continuous high convex quantity, and d is the elevation difference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202410150275.7A CN118110077A (en) | 2024-02-02 | 2024-02-02 | Highway pavement asphalt concrete construction process |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202410150275.7A CN118110077A (en) | 2024-02-02 | 2024-02-02 | Highway pavement asphalt concrete construction process |
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Application publication date: 20240531 |