CN112575656A - Multifunctional sensor for detecting compactness of asphalt pavement and arrangement method - Google Patents
Multifunctional sensor for detecting compactness of asphalt pavement and arrangement method Download PDFInfo
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- CN112575656A CN112575656A CN202011559030.8A CN202011559030A CN112575656A CN 112575656 A CN112575656 A CN 112575656A CN 202011559030 A CN202011559030 A CN 202011559030A CN 112575656 A CN112575656 A CN 112575656A
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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
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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
- E01C19/22—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 consolidating or finishing laid-down unset materials
- E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
- E01C19/28—Vibrated rollers or rollers subjected to impacts, e.g. hammering blows
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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
- E01C19/22—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 consolidating or finishing laid-down unset materials
- E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
- E01C19/28—Vibrated rollers or rollers subjected to impacts, e.g. hammering blows
- E01C19/282—Vibrated rollers or rollers subjected to impacts, e.g. hammering blows self-propelled, e.g. with an own traction-unit
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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
- E01C19/22—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 consolidating or finishing laid-down unset materials
- E01C19/23—Rollers therefor; Such rollers usable also for compacting soil
- E01C19/28—Vibrated rollers or rollers subjected to impacts, e.g. hammering blows
- E01C19/288—Vibrated rollers or rollers subjected to impacts, e.g. hammering blows adapted for monitoring characteristics of the material being compacted, e.g. indicating resonant frequency, measuring degree of compaction, by measuring values, detectable on the roller; using detected values to control operation of the roller, e.g. automatic adjustment of vibration responsive to such measurements
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/42—Road-making materials
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
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- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
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Abstract
The invention discloses a multifunctional sensor for detecting the compaction degree of an asphalt pavement and an arrangement method thereof, wherein the sensor has the functions of detecting temperature, vibration acceleration, amplitude, frequency data and positioning, is armored, is similar to asphalt mixture aggregate in appearance, resists high temperature and high pressure, is paved with the asphalt mixture at certain intervals and is embedded in an asphalt pavement structural layer, and can be matched with a Beidou satellite, a base station, a data processing cloud platform and a display (or a terminal for receiving data instructions and can automatically navigate the construction of a vibratory roller). The method can solve the problems that the compaction degree can not be detected in real time or is not accurately detected during the construction of the asphalt pavement, improve the effectiveness of the detection of the compaction data of the asphalt pavement and obtain the integral compaction condition of the pavement; the rolling route of the vibratory roller can be guided and optimized in real time, and the construction efficiency and quality are improved; the method is combined with an unmanned vibratory roller, and the compaction work during asphalt pavement construction is guided through real-time feedback of compaction data.
Description
Technical Field
The invention relates to a multifunctional sensor for detecting the compaction degree of an asphalt pavement and an arrangement method thereof, belonging to the field of asphalt pavement construction.
Background
The insufficient compaction of the asphalt pavement easily causes structural damage, cracks, water damage and other conditions, and the compaction degree is one of key indexes for controlling the construction quality of the asphalt pavement, so the compaction degree must be detected and evaluated in the construction process. The compaction degree detection methods commonly used in the construction quality control process at present comprise a core sample drilling method, a nucleon density hygrometer method, a coreless density densitometer method and the like, and the detection methods can not meet the requirements of rapid and real-time detection on the compaction degree in the field construction of the asphalt pavement, so that research and application of novel equipment and a novel method for rapidly detecting the compaction degree quality of the asphalt pavement are necessary.
In the bituminous paving compaction process, vibratory roller gives the vibration of bituminous paving certain frequency and amplitude, and bituminous mixture produces the reaction force to the steel wheel, and along with going on of compaction operation, bituminous pavement modulus grow, bituminous mixture sclerosis, bituminous mixture more and more become a whole, and the reaction force to the steel wheel is big more, and this kind of reaction can measure through vibration acceleration sensor.
When the vibratory roller works, the asphalt mixture is hardened, the parameters such as vibration acceleration, modulus, frequency and the like fed back by the asphalt pavement are continuously changed, and have great relevance with the compaction degree of the asphalt pavement, the mapping relation between the parameters such as vibration acceleration, modulus, frequency and the like and the compaction degree can be obtained through experimental research, and the parameters such as vibration acceleration, modulus, frequency and the like can be converted into the compaction degree of the asphalt pavement through detecting the parameters such as vibration acceleration, modulus, frequency and the like, so that the compaction work of the asphalt pavement is synchronously guided.
With the development of electronic communication technology, integrated circuits, micro sensors and other technologies, electronic components are increasingly miniaturized, and multiple functions are integrated into one small device to be easily realized. The device can integrate position information, temperature, vibration acceleration, frequency and amplitude detection and data storage, receiving, sending and energy storage elements into one component, and is used as detection equipment for compaction related parameters of asphalt pavement construction.
Disclosure of Invention
The technical problem is as follows: the invention provides a multifunctional sensor for detecting the compaction degree of an asphalt pavement and an arrangement method thereof, and the multifunctional sensor comprises the functional design of the multifunctional sensor, the construction and installation mode and the arrangement method thereof. This multifunctional sensor can cooperate with big dipper satellite, basic station, data processing cloud platform, automatic navigation, and when bituminous paving was under construction, the positional information that multifunctional sensor detected, temperature, vibration acceleration, amplitude, frequency data can obtain bituminous paving compactness cloud picture through data transmission and data processing cloud platform's data analysis, and then obtain the road roller and roll the route, guide improvement compaction efficiency and quality of going on of bituminous paving compaction operation in real time.
The technical scheme is as follows:
the utility model provides a multifunctional sensor for bituminous paving compactness detects, this multifunctional sensor includes assembled armor shell, the armor shell is formed by the equipment of two symmetry alloy steel material shells, set up the silastic-layer during the equipment between two symmetry alloy steel material shells, the inside spherical space that forms of armor shell after the equipment, place the sensor package in the spherical space, the sensor package includes circuit board and the energy storage component of integrated on the circuit board, a weighing sensor and a temperature sensor, a positioning sensor, vibration acceleration sensor, data memory and wireless transmission device, energy storage component respectively with temperature sensor, a positioning sensor, vibration acceleration sensor is connected, data memory respectively with temperature sensor, a positioning sensor, vibration acceleration sensor, wireless transmission device connects.
Further: the two symmetrical alloy steel material shells are assembled through bolts and nuts.
Further: the sensor component is made of a material which can resist the temperature of more than 200 ℃.
Further: the thickness of the silicone rubber layer is 2-5 mm.
Further: the maximum diameter of the armor shell is 20-25 mm.
A multifunctional sensor arrangement method for detecting the compaction degree of an asphalt pavement, when the asphalt pavement is paved, the multifunctional sensor as claimed in any one of claims 1 to 5 is manually placed at an asphalt mixture discharge port of a paver, wherein the multifunctional sensor is placed at a set first interval in the advancing direction of the paver and at a set second interval in the direction perpendicular to the advancing direction of the paver, so that the multifunctional sensor as a part of the asphalt mixture is embedded in an asphalt pavement structure layer in a net structure.
Further: the distance between the multifunctional sensors in the advancing direction of the spreading machine is controlled within the range of 49.8-50.2 m, and the distance between the multifunctional sensors in the direction perpendicular to the advancing direction of the spreading machine is controlled within the range of 4.8-5.2 m.
A real-time detection method for the construction compactness of an asphalt pavement comprises the following specific steps:
step 1, arranging a plurality of multifunctional sensors by adopting the arrangement method of claim 6;
step 2, when the vibratory roller is constructed on the asphalt pavement, a plurality of multifunctional sensors in the asphalt pavement structure layer wirelessly transmit the temperature and positioning detected in real time and the vibration acceleration, frequency and amplitude data generated by the vibratory roller to a data processing cloud platform;
step 3, converting the received data into compactness by the data processing cloud platform to form a compaction state cloud picture of asphalt pavement construction;
and 4, transmitting the compaction state cloud picture to the vibratory roller by the data processing cloud platform, and displaying the compaction state cloud picture on a display of the vibratory roller in real time to guide the rolling operation path of the roller in real time.
Has the advantages that: compared with the prior art, the invention has the following advantages:
1. the invention provides a multifunctional sensor for detecting the compaction degree of an asphalt pavement and an arrangement method, which can realize the detection of the compaction degree of the asphalt pavement under the condition of not damaging the pavement;
2. the invention can realize real-time detection of compaction degree in asphalt pavement rolling construction, can obtain a cloud picture of the asphalt pavement compaction state through data processing, plan a rolling construction route of the road roller and guide the implementation of compaction operation in real time;
3. the multifunctional sensor can be used as a part of asphalt mixture aggregates and paved on a pavement structure layer together, so that the installation convenience of the multifunctional sensor is improved; the multifunctional sensor is positioned in the asphalt pavement and can accurately detect the temperature change during the construction of the asphalt mixture, the multifunctional sensor is tightly embedded with the asphalt mixture, when the vibration of the vibratory roller is transmitted into the asphalt mixture, the vibration acceleration, the frequency and the amplitude received by the multifunctional sensor are consistent with those received by the asphalt mixture, and the effectiveness and the accuracy of data are ensured; the multifunctional sensors are arranged at certain intervals to form an asphalt pavement construction data detection network, the pavement becomes more and more an integral body along with the progress of compaction work, and a cloud picture of the asphalt pavement compaction degree can be obtained through conversion according to the data fed back by the multifunctional sensors and the distance between the multifunctional sensors, so that the actual condition of the asphalt pavement compaction work is conveniently solved, and the efficiency of the compaction work is improved;
4. in the process of paving and rolling the asphalt pavement, the data in the multifunctional sensor can be used as the basis for the construction and acceptance of the asphalt pavement and can also provide reference for the follow-up maintenance of the asphalt pavement.
Drawings
FIG. 1 is a block diagram of a multi-function sensor;
FIG. 2 is a block diagram of a steel alloy material housing;
FIG. 3 is a schematic structural view of a silicone rubber layer;
FIG. 4 is a schematic diagram of the distribution positions of the multifunctional sensors on a road;
fig. 5 is a schematic diagram of data transmission and processing flow.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
The invention provides a multifunctional sensor for detecting the compaction degree of an asphalt pavement and an arrangement method thereof, wherein the multifunctional sensor comprises a functional design, a construction installation mode and an arrangement method thereof, the multifunctional sensor can be matched with a Beidou satellite, a base station, a data processing cloud platform and an automatic navigation system, and when the asphalt pavement is constructed, a cloud picture of the compaction degree of the asphalt pavement is obtained by detecting position information, temperature, vibration acceleration, amplitude and frequency data and carrying out data analysis, so that a rolling path of a road roller is obtained, and the compaction efficiency and the quality of the compaction operation of the asphalt pavement are guided in real time.
The multifunctional sensor of the invention comprises the following functional designs: the multifunctional sensor is internally provided with an energy storage element, a temperature sensor, a positioning sensor, a vibration acceleration sensor, a data memory and a wireless transmission device, and has the functions of temperature detection, positioning (used for detecting the elevation and the plane position), vibration acceleration, amplitude and frequency detection, data storage and wireless transmission; the multifunctional sensor is armored by alloy steel material, the exterior is similar to rock, the interior has spherical space (the spherical space has the largest volume under the condition of certain surface area, can have larger space for placing elements, has uniform spherical stress, and can protect the elements to a certain extent), can bear high temperature above 200 ℃ and high hardness, has basically consistent external size and large-particle-size aggregate (the maximum diameter is within the range of 20-25 mm), can be doped into asphalt mixture as a part of the aggregate, can keep normal work after being paved and rolled during asphalt pavement construction, and is embedded in a pavement structure layer.
As shown in fig. 1 to 3, the multifunctional sensor adopts an assembled armor structure, and comprises two symmetrical alloy steel material shells, a silicone rubber layer, four bolts and nuts, wherein after assembly, a spherical space is arranged inside, and the outer shape of the multifunctional sensor is similar to that of a rock.
The installation mode and the arrangement method of the multifunctional sensor are as follows: when the asphalt pavement is paved, a multifunctional sensor is manually placed at the asphalt mixture discharge port of the paver every 50m or so in the advancing direction of the paver, and the spacing precision is controlled within the range of +/-0.2 m; in the direction vertical to the advancing direction of the paver, the distance between the multifunctional sensors is 5m, and the distance precision is controlled within the range of +/-0.2 m; the multifunctional sensor is used as a part of aggregate and is tightly embedded in the asphalt pavement structure layer in a net structure, as shown in figure 4.
Example (b):
as shown in fig. 1, the multifunctional sensor is armored by alloy steel material, the external shape is similar to rock, and can resist high temperature above 200 ℃, the hardness is high, the external size is basically consistent with large-particle size aggregate, the interior is provided with a spherical space for placing components, the energy storage element is arranged in the multifunctional sensor, and the multifunctional sensor has the functions of temperature detection, positioning (for detecting the elevation and the plane position), vibration acceleration, amplitude and frequency detection, data storage and wireless transmission, can be used as a part of the aggregate to be doped into asphalt mixture, can keep normal work after being paved and rolled during asphalt pavement construction, and is embedded in a pavement structure layer.
When the asphalt pavement is paved, the multifunctional sensor is manually placed at the discharge port of the asphalt mixture of the paver every 50m in the advancing direction of the paver, as shown in figure 4, the distance precision is controlled within the range of +/-0.2 m, the distance of the multifunctional sensor is 5m in the advancing direction vertical to the paver, the distance precision is controlled within the range of +/-0.2 m, and the multifunctional sensor is used as a part of aggregate and is tightly embedded in an asphalt pavement structure layer.
The invention is described below by using a multifunctional sensor in cooperation with a Beidou satellite, a base station, a data processing cloud platform, an automatic navigation system and the like: as shown in fig. 5, when the vibratory roller is constructed on the asphalt pavement, a plurality of multifunctional sensors installed in the asphalt pavement structure layer receive the vibration transmitted by the vibratory roller and generate vibration acceleration, frequency and amplitude data responses, the multifunctional sensors synchronously detect the temperature change condition of the asphalt mixture, the multifunctional sensors are positioned through a Beidou satellite to detect elevation and plane position information, the multifunctional sensors transmit the temperature, vibration acceleration, amplitude and frequency data of the asphalt mixture to a base station, the Beidou satellite transmits the elevation and plane position information of the multifunctional sensors to the base station, the base station synchronously transmits the data to a data processing cloud platform, the processed data is converted into compaction degree, a compaction state cloud picture of the asphalt pavement construction can be formed, and the data processing cloud platform transmits the compaction degree data to the base station, and the base station transmits the compaction data to a vibratory roller display, displays the compaction data in a cloud picture mode, and indicates a rolling operation path of the roller, or sends a program instruction to an automatic navigation vibratory roller instruction terminal to automatically navigate the vibratory roller to operate by combining with the unmanned vibratory roller. The data on the data processing cloud platform stores the compaction degree change condition in the construction process, can reflect the condition of asphalt pavement site construction, can be used as reference data for asphalt pavement acceptance, also has important reference value for maintenance of later asphalt pavement, and after construction, the data are classified, sorted and stored so as to be convenient for subsequent use of related data.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: in the field of the present invention, several modifications and improvements can be made without departing from the principle of the present invention, and these modifications and improvements should also be considered as the protection scope of the present invention.
Claims (8)
1. The utility model provides a multi-functional sensor for bituminous paving compactness detects which characterized in that: this multifunctional sensor includes assembled armor shell, armor shell is formed by the equipment of two symmetry alloy steel material shells, set up the silastic layer between two symmetry alloy steel material shells during the equipment, the inside spherical space that forms of armor shell after the equipment, place the sensor package in the spherical space, the sensor package includes circuit board and the energy storage component of integrated on the circuit board, a weighing sensor and a temperature sensor, a positioning sensor, vibration acceleration sensor, data memory and wireless transmission device, energy storage component respectively with temperature sensor, a positioning sensor, vibration acceleration sensor is connected, data memory respectively with temperature sensor, a positioning sensor, vibration acceleration sensor, wireless transmission device connects.
2. The multifunctional sensor for detecting the construction compactness of the asphalt pavement according to claim 1, wherein: the two symmetrical alloy steel material shells are assembled through bolts and nuts.
3. The multifunctional sensor for detecting the construction compactness of the asphalt pavement according to claim 1, wherein: the sensor component is made of a material which can resist the temperature of more than 200 ℃.
4. The multifunctional sensor for detecting the construction compactness of the asphalt pavement according to claim 1, wherein: the thickness of the silicone rubber layer is 2-5 mm.
5. The multifunctional sensor for detecting the construction compactness of the asphalt pavement according to claim 1, wherein: the maximum diameter of the armor shell is 20-25 mm.
6. A multifunctional sensor arrangement method for detecting the compaction degree of an asphalt pavement is characterized by comprising the following steps: when the asphalt pavement is paved, the multifunctional sensor as claimed in any one of claims 1 to 5 is manually placed at an asphalt mixture discharge port of a paver, wherein the multifunctional sensor is placed at a set first interval in the advancing direction of the paver and at a set second interval in the direction perpendicular to the advancing direction of the paver, so that the multifunctional sensor is embedded inside an asphalt pavement structure layer in a mesh structure as a part of the asphalt mixture.
7. The multifunctional sensor arrangement method for detecting the compaction degree of the asphalt pavement according to claim 6, wherein: the distance between the multifunctional sensors in the advancing direction of the spreading machine is controlled within the range of 49.8-50.2 m, and the distance between the multifunctional sensors in the direction perpendicular to the advancing direction of the spreading machine is controlled within the range of 4.8-5.2 m.
8. A real-time detection method for the construction compactness of an asphalt pavement is characterized by comprising the following specific steps:
step 1, arranging a plurality of multifunctional sensors by adopting the arrangement method of claim 6;
step 2, when the vibratory roller is constructed on the asphalt pavement, a plurality of multifunctional sensors in the asphalt pavement structure layer wirelessly transmit the temperature and positioning detected in real time and the vibration acceleration, frequency and amplitude data generated by the vibratory roller to a data processing cloud platform;
step 3, converting the received data into compactness by the data processing cloud platform to form a compaction state cloud picture of asphalt pavement construction;
and 4, transmitting the compaction state cloud picture to the vibratory roller by the data processing cloud platform, and displaying the compaction state cloud picture on a display of the vibratory roller in real time to guide the rolling operation path of the roller in real time.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114166891A (en) * | 2021-12-07 | 2022-03-11 | 武汉理工大学 | Electric performance based cold-mixing cold-paving asphalt mixture rolling time determination device and method |
| CN114440972A (en) * | 2022-01-12 | 2022-05-06 | 东南大学 | Long-term monitoring system and method for asphalt pavement in construction and operation processes |
| CN115369726A (en) * | 2022-09-01 | 2022-11-22 | 淮北连通市政工程有限公司 | Asphalt concrete construction equipment and construction method |
| CN115897440A (en) * | 2023-01-14 | 2023-04-04 | 武汉理工大学 | Intelligent parking apron and construction method thereof |
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| CN115897440A (en) * | 2023-01-14 | 2023-04-04 | 武汉理工大学 | Intelligent parking apron and construction method thereof |
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Application publication date: 20210330 |