CN110658334A - Road evaluation detection system based on BIM technology - Google Patents
Road evaluation detection system based on BIM technology Download PDFInfo
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- CN110658334A CN110658334A CN201910875539.4A CN201910875539A CN110658334A CN 110658334 A CN110658334 A CN 110658334A CN 201910875539 A CN201910875539 A CN 201910875539A CN 110658334 A CN110658334 A CN 110658334A
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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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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
- G01N1/08—Devices for withdrawing samples in the solid state, e.g. by cutting involving an extracting tool, e.g. core bit
Abstract
The invention belongs to the field of road assessment and detection, in particular to a road assessment and detection system based on a BIM technology, which comprises a sampling machine table, a BIM system and rollers, wherein an electric push rod, a high-frequency heater and a sampling box are arranged on the sampling machine table; the sampling box top is equipped with an gasbag and No. two gasbags, be equipped with red gluey lacquer in the gasbag, be equipped with cooling water in the gasbag No. two, the sampling box makes inside red gluey lacquer and the cooling water in the gasbag No. two through extrusion gasbag, marks the sample position, makes things convenient for the staff to lock fast and handle unqualified road surface.
Description
Technical Field
The invention belongs to the field of road assessment and detection, and particularly relates to a road assessment and detection system based on a BIM (building information modeling) technology.
Background
Roads are one of the most important infrastructures of the country, are the main content of traffic construction, and are closely related to the lives of people. However, the road is inevitably affected by various human factors and natural factors during the use process, and the road state is changed and the safety performance is reduced due to the changes of the moisture content of the roadbed soil, the freeze-thaw cycle, the road surface abrasion, the construction of the lower part or the periphery of the roadbed and other disturbances. Accidents such as large-area collapse of pavements and the like are common at home and abroad, and the accidents not only cause personal and property loss, but also bring huge negative effects to the society, and further worry about road safety hidden dangers by people is caused, so that the regular state evaluation of the existing roads is very necessary.
The BIM technology is a datamation tool applied to engineering design, construction and management, and shares and transmits the building datamation and informatization model integration in the whole life cycle process of project planning, operation and maintenance, so that engineering technicians can correctly understand and efficiently respond to various building information, a foundation for cooperative work is provided for design teams and all building main bodies including buildings and operation units, and the building information management system plays an important role in improving production efficiency, saving cost and shortening construction period.
At present, the existing road assessment and detection means are mainly divided into two types of damage detection and non-damage detection, wherein the damage detection is such as a core drilling method, the cost is high, the time consumption is long, the manpower requirement is high, and the road pavement is locally damaged, so that large-area core drilling sampling is unrealistic; and the BIM technology is utilized to realize three-dimensional visualization of the internal structure of the asphalt pavement, so that comprehensive, accurate and quick evaluation and detection of the damaged pavement are facilitated.
In view of this, the invention provides a road evaluation detection system based on the BIM technology, which can effectively reduce noise pollution and environmental pollution caused by mechanical drilling, reduce damage to a road surface after sampling detection, and improve detection quality and detection efficiency of the road surface.
Disclosure of Invention
In order to make up for the defects of the prior art, the invention provides a road evaluation detection system based on the BIM technology, which can effectively reduce noise pollution and environmental pollution caused by mechanical drilling, simultaneously reduce the damage to the road surface after sampling detection, and improve the detection quality and the detection efficiency of the road surface.
The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to a road evaluation detection system based on a BIM technology, which comprises a sampling machine platform, a BIM system and a roller, wherein the roller is arranged at the bottom of the sampling machine platform, and the BIM system is used for processing three-dimensional virtual data of a detection sample; the sampling machine is characterized in that a support frame is arranged on the upper surface of the sampling machine table, a motor is arranged at the top of the support frame, a controller is arranged on one side of the motor and controls the operation of the motor, an electric push rod is connected to the bottom of the motor, a heating box is connected to the bottom of the electric push rod, a high-frequency heater is arranged in the heating box, a sampling box is arranged at the bottom of the heating box and penetrates through the sampling machine table, notches are symmetrically arranged at the bottoms of two sides of the sampling box, a heat-conducting cutting knife is arranged in each notch, the cross section of the cutting knife is set to be in a shape of a cone with a wide upper part and a narrow lower part, two sides of the top end of the cutting knife are in contact with the side wall of each notch, a heat-conducting spring is connected to the top of each notch, the other end of the, a second notch is formed in the side wall of the first notch, the other end of the second notch is communicated with the inner wall of the sampling box, a piston is arranged inside the second notch, the outer end of the piston is connected with a second spring, the other end of the second spring is connected to the side wall of the second notch, a circular truncated cone-shaped elastic membrane is arranged on the outer side of the second notch, and an airflow channel is formed in the middle of the elastic membrane; when the asphalt road sampling device is in work, the sampling machine table is pulled by the tractor to run on an asphalt road, when a certain section of asphalt road is to be sampled and detected, the controller controls the motor to run, the motor drives the cutting knives on two sides of the sampling box to move downwards through controlling the electric push rod at the bottom, meanwhile, the high-frequency heater starts to work, when the high-frequency heater is heated, heat is transferred to the cutting knives through the heating pipes, so that the surfaces of the cutting knives have high temperature, when the bottom ends of the cutting knives are in contact with the asphalt road, the asphalt road is cut at the moment by the bottom ends of the cutting knives with high temperature, the bottom ends of the cutting knives are extruded by the asphalt road to slide towards the inside of the first notch, at the moment, the side walls of the sampling box are extruded around the asphalt sample under the driving of the electric push rod, so that the tops of the cut asphalt, the gas in the cavity extrudes the elastic membrane in the second notch, so that the elastic membrane is stressed and expanded, the airflow channel on the elastic membrane is stretched and opened, and the airflow rushes into the cavity between the elastic membrane and the piston through the airflow channel, so that the piston slides towards the inner wall of the sampling box under the impact of the airflow; when the cutting knife cuts the soft soil base layer, namely after the cutting knife cuts the asphalt sample, the cutting knife is completely extruded into the first notch, and the asphalt sample is completely collected into the sampling box, the piston moves to the innermost end of the second notch, namely, the inner wall of the piston is contacted with the asphalt sample on the inner wall of the sampling box, so that the asphalt sample in the sampling box is clamped, then the electric push rod drives the sampling box to move upwards to take out the asphalt sample for detection, the cutting knife rebounds downwards under the action of the pressure of the first spring and the self gravity in the process, so that the chamber space at the top of the cutting knife is enlarged to generate negative pressure, the elastic membrane at one suction side is contracted, the airflow channel at the middle part of the elastic membrane is contracted, the elastic membrane and the gas in the piston space are slowly extruded through the airflow channel, and the pressure in the elastic membrane and the piston space is kept stable and high pressure in the early stage, at the moment, the side wall of the piston continuously applies pressure to the asphalt sample to clamp the asphalt sample, the BIM system carries out three-dimensional visualization processing on the internal structure of the asphalt sample, a worker evaluates and detects the asphalt sample according to a visualization stereogram processed by the BIM system, and after the evaluation and detection of the asphalt sample are finished, the electric push rod drives the sampling box to put the asphalt sample back to a sampling position; when the asphalt sample is completely placed to the sampling position, the pressure in the elastic membrane and the piston is restored to the normal pressure state at the moment, the piston is retracted to the middle of the second notch under the pulling force of the second spring, namely the side wall of the piston does not clamp the asphalt sample any more, so that the asphalt sample is placed back to the original position, the sampling and detection of the asphalt sample are completed for one time, and the roller at the bottom of the sampling machine table can crush the placed asphalt sample; the effect of adopting this sampling scheme is: through the cutting of high temperature's activity cutting knife to the pitch sample, reduced noise pollution and the environmental pollution that the mechanical drill got, and adopt the sample box to detect the mode of putting back, convenient and fast fills the pit to sample department and recovers, has effectively reduced the difficult degree of difficulty of putting back the original department behind the pitch sample on the one hand, and on the other hand has also reduced the harm that causes the road surface behind the pitch sample, has improved bituminous paving's detection quality and detection efficiency.
Preferably, a cavity is arranged on the bottom surface of the sampling machine table and is positioned at the top of the sampling box, an extrusion air bag is arranged in the cavity, the extrusion air bag is divided into two smaller air bags from the middle part, wherein the air bag close to the bottom of the cavity is a first air bag, a nozzle is arranged at the bottom of the first air bag, and red glue paint is filled in the first air bag; the during operation, after the sampling box takes out the pitch sample and detects, when bituminous paving detects unqualifiedly, the controller passes through motor control electric putter and continues the upward movement, make electric putter drive the sampling box upward movement, when the sampling box top moves to and an gasbag contact, the sampling box top extrudees the gasbag, thereby make the red glue lacquer pressurized in the gasbag spout from the nozzle, red glue lacquer adhesion is in sampling position one side, thereby mark unqualified bituminous paving, make things convenient for the staff to lock fast and handle unqualified pavement, and gasbag bottom is equipped with the replenishment pipe, the replenishment pipe can in time supply its inside red glue lacquer, the stability of gasbag work has been strengthened.
Preferably, an arc-shaped plate which can be bent and deformed when being heated is arranged on one side of the inner wall of the first notch, and the higher the heating degree of the arc-shaped plate is, the larger the surface bending degree of the arc-shaped plate is; the during operation, the cutting knife of high temperature cuts bituminous paving, the arc of cutting knife one side receives the high temperature transmission bending deformation of cutting knife, and the narrow cross sectional shape makes the arc top heating area bigger under the cutting knife is wide, the arc top is heated the crooked range of outside deformation promptly and is bigger, thereby it is crooked to pitch sample direction to make the arc bottom, after the cutting knife is accomplished the sample cutting, the arc bottom carries out the chucking jack-up to pitch sample bottom, play the effect of fixed pitch sample bottom, thereby make things convenient for taking out of pitch sample more.
Preferably, a group of third notches are symmetrically formed in the inner wall of the first notch, elastic needles are installed in the third notches, third springs are connected to the bottom surfaces of the elastic needles, and the other ends of the third springs are connected to the bottom surfaces of the third notches; the during operation, when the cutting knife received bituminous paving's pressure to the inside time that slides of notch, the cutting knife lateral wall extrudees the top of both sides elasticity needle, and the elasticity needle slides in No. three notches under the pressure of No. three springs and the pressure of cutting knife side, and the elasticity needle top contacts with the cutting knife side all the time to make elasticity strike off to the pitch residue on the cutting knife side, keep the smoothness clean and tidy of cutting knife side, be favorable to the cycle work of cutting knife, improve the cutting quality of cutting knife.
Preferably, the airbag adjacent to the first airbag is a second airbag, cooling water is arranged in the second airbag, a nozzle is arranged on one side of the second airbag, a pressure valve is arranged in the nozzle, collecting pipes are arranged at the positions of the first airbag and the second airbag nozzle, and the other end of each collecting pipe extends to one side of the cutting knife; a water flow channel is arranged on the sampling machine table at the top of the second air bag, the bottom of the water flow channel is connected with the top of the second air bag, and a water storage box is arranged at the top of the water flow channel; when the device works, when the asphalt pavement is unqualified in detection, the controller controls the electric push rod to move upwards through the motor, so that the electric push rod drives the sampling box to move upwards, when the top of the sampling box moves to be in contact with the first air bag, the top of the sampling box extrudes the first air bag, so that red glue paint in the first air bag flows into one side of a sampling position through the collecting pipe after being sprayed out, and the sampling position is marked; when the pressure in the first air bag is increased, the first air bag extrudes the adjacent second air bag, the internal air pressure of the second air bag is increased, the pressure valve at the nozzle of the second air bag is pressed to be opened, cooling water in the second air bag flows into the collecting pipe from the nozzle and further flows into the sampling position, the cooling water cleans red glue paint in the collecting pipe on the one hand, the smoothness and tidiness in the collecting pipe are kept, on the other hand, the cooling water cools the high-temperature asphalt pavement at the sampling position, the high-temperature asphalt pavement is cooled to generate cracks, the sampling position is more striking, the marking effect is enhanced, the worker can handle unqualified pavements more conveniently, the water storage box connected to the top of the second air bag supplements the cooling water in the second air bag in time, and the working stability of the sampling machine is enhanced.
Preferably, the middle part of the side wall of the piston is provided with a latch, and high-temperature resistant anti-sticking films are arranged around the latch and on two sides of the inner wall of the sampling box; the during operation, when the piston lateral wall got the pitch sample and gets, the latch received in the pressure of piston lateral wall is extruded into the pitch sample, thereby make latch and pitch sample carry out the block, make the piston carry out inseparabler centre gripping to the pitch sample, and the adhesion of pitch residue is prevented to the antiseized membrane that is equipped with sampling box inner wall both sides around the latch, make piston outer wall and sampling box inner wall keep smooth clean and tidy, be favorable to the cycle work of sample board, further improve the operating mass with the sample board.
The invention has the following beneficial effects:
1. according to the invention, the electric push rod, the high-frequency heater and the sampling box are arranged on the sampling machine table, the cutting knife and the piston are arranged in the sampling box, the cutting knife is controlled by the electric push rod and the high-frequency heater to cut the asphalt sample, and the contraction of the piston is controlled by the cutting knife to take out and put back the asphalt sample, so that the noise pollution and the environmental pollution caused by mechanical drilling are reduced, and the detection quality and the detection efficiency of the asphalt pavement are improved.
2. According to the invention, the first air bag and the second air bag are arranged at the top of the sampling box, the red glue paint is arranged in the first air bag, the cooling water is arranged in the second air bag, and when the sample is unqualified in detection, the sampling box extrudes the first air bag to spray the red glue paint inside and the cooling water in the second air bag, so that the sampling position is marked, and the worker can conveniently lock and treat the unqualified road surface.
Drawings
The invention will be further explained with reference to the drawings.
FIG. 1 is a cross-sectional view of the present invention;
FIG. 2 is an enlarged view at A in FIG. 1;
FIG. 3 is an enlarged view at B in FIG. 1;
FIG. 4 is an enlarged view at C of FIG. 1;
FIG. 5 is an enlarged view at D of FIG. 3;
in the figure: the sampling machine comprises a sampling machine table 1, a support frame 11, a motor 12, an electric push rod 13, a heating box 14, a high-frequency heater 15, a heating pipe 151, a roller 2, a sampling box 3, a first notch 31, a cutting knife 32, a first spring 33, a second notch 34, a piston 35, a latch 351, a second spring 36, an elastic membrane 37, an air flow channel 371, an arc-shaped plate 38, an anti-sticking membrane 39, a cavity 4, a first air bag 41, a second air bag 42, a collecting pipe 43, a water storage box 44, a third notch 5, an elastic needle 51 and a third spring 52.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the following embodiments.
As shown in fig. 1-5, the road assessment and detection system based on the BIM technology according to the present invention includes a sampling machine 1, a BIM system and a roller 2, wherein the roller 2 is installed at the bottom of the sampling machine 1, and the BIM system is used for processing three-dimensional virtual data of a detection sample; the upper surface of the sampling machine table 1 is provided with a support frame 11, the top of the support frame 11 is provided with a motor 12, one side of the motor 12 is provided with a controller, the controller controls the operation of the motor 12, the bottom of the motor 12 is connected with an electric push rod 13, the bottom of the electric push rod 13 is connected with a heating box 14, a high-frequency heater 15 is arranged in the heating box 14, the bottom of the heating box 14 penetrates through the sampling machine table 1 to be provided with a sampling box 3, the bottoms of the two sides of the sampling box 3 are symmetrically provided with a first notch 31, a heat-conducting cutting knife 32 is arranged in the first notch 31, the cross section of the cutting knife 32 is set into a cone shape which is wide at the top and narrow at the bottom, the two sides of the top end of the cutting knife 32 are contacted with the side wall of the first notch 31, the top of the cutting knife 32, the heating pipe 151 is connected with a first spring 33, heat is transferred to the cutting knife 32 through the heating pipe 151 when the high-frequency heater 15 is heated, a second notch 34 is formed in the side wall of the first notch 31, the other end of the second notch 34 is communicated with the inner wall of the sampling box 3, a piston 35 is arranged inside the second notch 34, the outer end of the piston 35 is connected with a second spring 36, the other end of the second spring 36 is connected to the side wall of the second notch 34, a circular truncated cone-shaped elastic membrane 37 is arranged on the outer side of the second notch 34, and an airflow channel 371 is formed in the middle of the elastic membrane 37; when the asphalt road sampling device works, the sampling machine table 1 is pulled by a tractor to run on an asphalt road, when a certain section of asphalt road is to be sampled and detected, the controller controls the motor 12 to operate, the motor 12 drives the cutting knives 32 on two sides of the sampling box 3 to move downwards through controlling the electric push rod 13 at the bottom, meanwhile, the high-frequency heater 15 starts to work, when the high-frequency heater 15 heats, heat is transferred to the cutting knives 32 through the heating pipes 151, so that the surfaces of the cutting knives 32 have high temperature, when the bottom ends of the cutting knives 32 are contacted with the asphalt road, the bottom ends of the cutting knives 32 with high temperature instantly cut the asphalt road, and the bottom ends of the cutting knives 32 slide towards the inside of the first notch 31 under the extrusion of the asphalt road, at the moment, the side walls of the sampling box 3 extrude the periphery of the asphalt sample under the driving of the electric push rod 13, so that the tops of the cut, the space of the cavity at the top of the cutting knife 32 is reduced, the pressure is increased, so that the air in the cavity extrudes the elastic membrane 37 in the second notch 34, the elastic membrane 37 is expanded under stress, the air flow channel 371 on the elastic membrane 37 is stretched and opened at the moment, the air flow rushes into the cavity between the elastic membrane 37 and the piston 35 through the air flow channel 371, and the piston 35 slides towards the inner wall of the sampling box 3 under the impact of the air flow; when the cutting knife 32 cuts the soft soil base layer, namely after the cutting knife 32 cuts the asphalt sample, the cutting knife 32 is completely extruded into the first notch 31, and the asphalt sample is completely collected into the sampling box 3, the piston 35 moves to the innermost end of the second notch 34, namely, the inner wall of the piston 35 contacts with the asphalt sample on the inner wall of the sampling box 3, so as to clamp the asphalt sample in the sampling box 3, then the electric push rod 13 drives the sampling box 3 to move upwards to take out the asphalt sample for detection, in the process, the pressure of the first spring 33 and the self gravity of the cutting knife 32 rebound downwards, so that the chamber space at the top of the cutting knife 32 is enlarged to generate negative pressure, and the elastic membrane 37 at one suction side is contracted, at the moment, the air flow passage 371 at the middle part of the elastic membrane 37 is contracted, and the air in the spaces of the elastic membrane 37 and the piston 35 is slowly extruded through the air flow passage 371, therefore, the pressure intensity in the space between the elastic membrane 37 and the piston 35 is kept at a stable high pressure in the early stage, the side wall of the piston 35 continuously applies pressure to the asphalt sample for clamping, the BIM system carries out three-dimensional visual processing on the internal structure of the asphalt sample, a worker evaluates and detects the asphalt sample according to a visual stereogram processed by the BIM system, and after the evaluation and detection of the asphalt sample are finished, the electric push rod 13 drives the sampling box 3 to put the asphalt sample back to a sampling position; when the asphalt sample is completely placed to the sampling position, the pressure in the elastic membrane 37 and the piston 35 is restored to the normal pressure state at the moment, the piston 35 is retracted to the middle of the second notch 34 under the pulling force of the second spring 36, namely, the sidewall of the piston 35 does not clamp the asphalt sample any more, so that the asphalt sample is placed back to the original position, the sampling and the detection of the asphalt sample are completed for one time, and the roller 2 at the bottom of the sampling machine table 1 can crush the placed asphalt sample; the effect of adopting this sampling scheme is: cut the pitch sample through the activity cutting knife 32 of high temperature, reduced noise pollution and the environmental pollution that the mechanical drilling got, and adopt the mode that sampling box 3 detected to put back, convenient and fast fills the pit to sample department and recovers, has effectively reduced the difficult degree of difficulty of putting back the original department behind the pitch sample on the one hand, and on the other hand has also reduced the harm that causes the road surface behind the pitch sample, has improved bituminous paving's detection quality and detection efficiency.
As an embodiment of the invention, a cavity 4 is arranged on the bottom surface of the sampling machine table 1, the cavity 4 is positioned at the top of the sampling box 3, an extrusion air bag is arranged in the cavity 4, and the extrusion air bag is divided into two smaller air bags from the middle part, wherein the air bag close to the bottom of the cavity 4 is a first air bag 41, a nozzle is arranged at the bottom of the first air bag 41, and red glue paint is filled in the first air bag 41; the during operation, after sampling box 3 takes out the pitch sample and detects, when bituminous paving detects unqualified, the controller passes through motor 12 control electric putter 13 and continues the upward movement, make electric putter 13 drive sampling box 3 upward movement, when sampling box 3 top moves to contact with gasbag 41, sampling box 3 top extrudees gasbag 41 No. one, thereby make the red glue lacquer pressurized of gasbag 41 in spout from the nozzle, red glue lacquer adhesion is in sample position one side, thereby mark unqualified bituminous paving, make things convenient for the staff to carry out quick locking and processing to unqualified pavement, and gasbag 41 bottom is equipped with the replenishment pipe, the replenishment pipe can in time supply its inside red glue lacquer, the stability of gasbag 41 work has been strengthened.
As an embodiment of the invention, an arc-shaped plate 38 which can be bent and deformed when being heated is arranged on one side of the inner wall of the first notch 31, and the higher the heating degree of the arc-shaped plate 38 is, the larger the surface bending degree of the arc-shaped plate 38 is; the during operation, cutting knife 32 of high temperature cuts bituminous paving, the arc 38 of cutting knife 32 one side receives the high temperature transmission bending deformation of cutting knife 32, and the narrow sectional shape makes arc 38 top heating area bigger under the cutting knife 32 is wide, the crooked range of the outside deformation of arc 38 top heating is bigger promptly, thereby it is crooked to pitch sample direction to make arc 38 bottom, after cutting knife 32 accomplishes the sample cutting, arc 38 bottom carries out the chucking jack-up to pitch sample bottom, play the effect of fixed pitch sample bottom, thereby make things convenient for taking out of pitch sample more.
As an embodiment of the invention, a group of No. three notches 5 are symmetrically arranged on the inner wall of the No. one notch 31, an elastic needle 51 is arranged in the No. three notches 5, a No. three spring 52 is connected to the bottom surface of the elastic needle 51, and the other end of the No. three spring 52 is connected to the bottom surface of the No. three notches 5; the during operation, when cutting knife 32 received bituminous paving's pressure to the inside time that slides of notch 31, cutting knife 32 lateral wall extrudees the top of both sides elasticity needle 51, elasticity needle 51 slides under the pressure of No. three spring 52 and the pressure of cutting knife 32 side at No. three notch 5, and elasticity needle 51 top contacts with cutting knife 32 side all the time, thereby make elasticity needle 51 strike off the pitch residue on the cutting knife 32 side, keep the smoothness clean and tidy of cutting knife 32 side, be favorable to the cycle work of cutting knife 32, improve the cutting quality of cutting knife 32.
As an embodiment of the present invention, the airbag adjacent to the first airbag 41 is a second airbag 42, cooling water is provided in the second airbag 42, a nozzle is provided at one side of the second airbag 42, a pressure valve is provided in the nozzle, header pipes 43 are provided at the nozzles of the first airbag 41 and the second airbag 42, and the other end of the header pipes 43 extends to one side of the cutter 32; a water flow channel is arranged on the sampling machine table 1 at the top of the second air bag 42, the bottom of the water flow channel is connected with the top of the second air bag 42, and a water storage box 44 is arranged at the top of the water flow channel; when the device works, when the asphalt pavement is unqualified in detection, the controller controls the electric push rod 13 to move upwards through the motor 12, so that the electric push rod 13 drives the sampling box 3 to move upwards, when the top of the sampling box 3 moves to be in contact with the first air bag 41, the top of the sampling box 3 extrudes the first air bag 41, the red glue paint in the first air bag 41 is sprayed out and then flows into one side of a sampling position through the collecting pipe 43, and the sampling position is marked; and the pressure in the first air bag 41 increases, the first air bag 41 presses the adjacent second air bag 42, the internal air pressure of the second air bag 42 is increased, at this time, the pressure valve at the nozzle of the second air bag 42 is pressed to open, so that the cooling water in the second air bag 42 flows into the collecting pipe 43 from the nozzle, then flows into the sampling position, the cooling water cleans the red glue paint in the collecting pipe 43 on the one hand, keeps the smoothness and tidiness in the collecting pipe 43, on the other hand, cools the high-temperature asphalt pavement at the sampling position, so that the high-temperature asphalt pavement is cooled to generate cracks, the sampling position is more striking, the marking effect is enhanced, meanwhile, the unqualified pavement is more convenient for the working personnel to process, and the water storage box 44 connected with the top of the second air bag 42 supplements the cooling water in the second air bag 42 in time, thereby enhancing the working stability of the sampling machine table 1.
As an embodiment of the present invention, a latch 351 is disposed in the middle of the sidewall of the piston 35, and a high temperature resistant anti-sticking film 39 is disposed around the latch 351 and on both sides of the inner wall of the sampling box 3; the during operation, when piston 35 lateral wall was got pitch sample and is got, latch 351 receives the pressure of piston 35 lateral wall to be extruded into in the pitch sample, thereby make latch 351 and pitch sample carry out the block, make piston 35 carry out inseparabler centre gripping to the pitch sample, and the adhesion of anti-sticking film 39 that is equipped with 3 inner wall both sides of sampling box around the latch 351 prevents the pitch residue, make piston 35 outer wall and 3 inner walls of sampling box keep smooth clean and tidy, be favorable to the circulation work of sampling board 1, further improve the operating mass with sampling board 1.
When the asphalt road sampling device works, the sampling machine table 1 is pulled by a tractor to run on an asphalt road, when a certain section of asphalt road is to be sampled and detected, the controller controls the motor 12 to operate, the motor 12 drives the cutting knives 32 on two sides of the sampling box 3 to move downwards through controlling the electric push rod 13 at the bottom, meanwhile, the high-frequency heater 15 starts to work, when the high-frequency heater 15 heats, heat is transferred to the cutting knives 32 through the heating pipes 151, so that the surfaces of the cutting knives 32 have high temperature, when the bottom ends of the cutting knives 32 are contacted with the asphalt road, the bottom ends of the cutting knives 32 with high temperature instantly cut the asphalt road, and the bottom ends of the cutting knives 32 slide towards the inside of the first notch 31 under the extrusion of the asphalt road, at the moment, the side walls of the sampling box 3 extrude the periphery of the asphalt sample under the driving of the electric push rod 13, so that the tops of the cut, the space of the cavity at the top of the cutting knife 32 is reduced, the pressure is increased, so that the air in the cavity extrudes the elastic membrane 37 in the second notch 34, the elastic membrane 37 is expanded under stress, the air flow channel 371 on the elastic membrane 37 is stretched and opened at the moment, the air flow rushes into the cavity between the elastic membrane 37 and the piston 35 through the air flow channel 371, and the piston 35 slides towards the inner wall of the sampling box 3 under the impact of the air flow; after the cutting knife 32 finishes cutting the asphalt sample, namely the cutting knife 32 is completely extruded into the first notch 31, and the asphalt sample is completely collected into the sampling box 3, at this time, the piston 35 moves to the innermost end of the second notch 34, namely, the inner wall of the piston 35 is contacted with the asphalt sample on the inner wall of the sampling box 3, so as to play a role of clamping the asphalt sample in the sampling box 3, then the electric push rod 13 drives the sampling box 3 to move upwards, the asphalt sample is taken out for detection, in the process, the cutting knife 32 rebounds downwards under the action of the pressure of the first spring 33 and the self gravity, so that the chamber space at the top of the cutting knife 32 is enlarged to generate negative pressure, thereby sucking the elastic membrane 37 at one side to contract, at this time, the air flow channel 371 in the middle part of the elastic membrane 37 is contracted, the air in the space between the elastic membrane 37 and the piston 35 is slowly extruded through the air flow channel 371, so that the pressure in the space between, at the moment, the side wall of the piston 35 continuously applies pressure to the asphalt sample to clamp the asphalt sample, the BIM system carries out three-dimensional visualization processing on the internal structure of the asphalt sample, a worker evaluates and detects the asphalt sample according to a visual stereogram processed by the BIM system, and after the evaluation and detection of the asphalt sample are finished, the electric push rod 13 drives the sampling box 3 to place the asphalt sample back to a sampling position; when the asphalt sample is completely placed to the sampling position, the pressure in the elastic membrane 37 and the piston 35 is restored to the normal pressure state at the moment, the piston 35 is retracted to the middle of the second notch 34 under the pulling force of the second spring 36, namely, the sidewall of the piston 35 does not clamp the asphalt sample any more, so that the asphalt sample is placed back to the original position, the sampling and the detection of the asphalt sample are completed for one time, and the roller 2 at the bottom of the sampling machine table 1 can crush the placed asphalt sample; the effect of adopting this sampling scheme is: cut the pitch sample through the activity cutting knife 32 of high temperature, reduced noise pollution and the environmental pollution that the mechanical drilling got, and adopt the mode that sampling box 3 detected to put back, convenient and fast fills the pit to sample department and recovers, has effectively reduced the difficult degree of difficulty of putting back the original department behind the pitch sample on the one hand, and on the other hand has also reduced the harm that causes the road surface behind the pitch sample, has improved bituminous paving's detection quality and detection efficiency.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A road assessment detection system based on a BIM technology comprises a sampling machine table (1), a BIM system and rollers (2), wherein the rollers (2) are installed at the bottom of the sampling machine table (1), and the BIM system is used for processing three-dimensional virtual data of a detection sample; the method is characterized in that: the sampling machine table is characterized in that a support frame (11) is arranged on the upper surface of the sampling machine table (1), a motor (12) is arranged at the top of the support frame (11), a controller is arranged on one side of the motor (12), the controller controls the operation of the motor (12), an electric push rod (13) is connected to the bottom of the motor (12), a heating box (14) is connected to the bottom of the electric push rod (13), a high-frequency heater (15) is arranged in the heating box (14), a sampling box (3) is arranged on the bottom of the heating box (14) after penetrating through the sampling machine table (1), notches (31) are symmetrically arranged at the bottoms of two sides of the sampling box (3), a heat-conducting cutting knife (32) is arranged in each notch (31), the cross section of the cutting knife (32) is arranged into a cone with the upper width and the lower width, both sides of the cutting knife (32) are in contact with the side wall of, no. one spring (33) other end is connected at notch (31) top, be connected with heating pipe (151) on high frequency heater (15), heating pipe (151) link to each other with a spring (33), transmit heat for cutting knife (32) through heating pipe (151) during high frequency heater (15) heating, be provided with No. two notches (34) on notch (31) lateral wall, No. two notch (34) other ends communicate with each other with sampling box (3) inner wall, No. two inside pistons (35) that are equipped with of notch (34), piston (35) outer end is connected with No. two spring (36), No. two spring (36) other ends are connected on No. two notch (34) lateral walls, No. two notch (34) outsides are equipped with elastic membrane (37) of round platform shape, elastic membrane (37) middle part is provided with air flow channel (371).
2. The BIM technology-based road assessment detection system according to claim 1, wherein: sample board (1) bottom surface is provided with cavity (4), cavity (4) are located sampling box (3) top, be equipped with the extrusion gasbag in cavity (4), and the extrusion gasbag separates for two less gasbags from the mid portion, and wherein, the gasbag that is close to cavity (4) bottom is gasbag (41) No. one, gasbag (41) bottom is equipped with the nozzle, fill red glue lacquer in gasbag (41).
3. The BIM technology-based road assessment detection system according to claim 1, wherein: a cambered plate (38) which can be subjected to bending deformation when being heated is arranged on one side of the inner wall of the first notch (31), the higher the heating degree of the cambered plate (38) is, the larger the surface bending degree of the cambered plate (38) is.
4. The BIM technology-based road assessment detection system according to claim 3, wherein: a notch (31) inner wall symmetry is provided with a set of No. three notches (5), install elasticity needle (51) in No. three notches (5), elasticity needle (51) bottom surface is connected with No. three spring (52), No. three spring (52) other end is connected on No. three notch (5) bottom surfaces.
5. The BIM technology-based road assessment detection system according to claim 2, wherein: the adjacent air bags of the first air bag (41) are second air bags (42), cooling water is arranged in the second air bags (42), nozzles are arranged on one sides of the second air bags (42), pressure valves are arranged in the nozzles, collecting pipes (43) are arranged at the positions of the nozzles of the first air bags (41) and the second air bags (42), and the other ends of the collecting pipes (43) extend to one side of the cutting knife (32); a water flow channel is arranged on the sampling machine table (1) at the top of the second air bag (42), the bottom of the water flow channel is connected with the top of the second air bag (42), and a water storage box (44) is arranged at the top of the water flow channel.
6. The BIM technology-based road assessment detection system according to claim 1, wherein: piston (35) lateral wall middle part is equipped with latch (351), all be equipped with high temperature resistant anti-sticking film (39) around latch (351) and sample box (3) inner wall both sides.
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