Asphalt pavement compression resistance and loss prevention quality test device for road engineering

Abstract

The invention discloses an asphalt pavement compression resistance and loss prevention quality test device for road engineering, belongs to the technical field of engineering test devices, and aims to solve the problems that a test device for timely regulating and controlling internal and external change data of an asphalt sample material is lacked, so that the test device continuously operates according to setting, a compression resistance damaged asphalt sample material is easily damaged, and the test efficiency is high. The test efficiency of the subsequent asphalt sample material is improved. The test device comprises a bottom frame, a lifting mechanism is arranged on the outer wall of the middle of the bottom frame, the lifting mechanism comprises a storage box and a top plate, high-precision control over the test device can be conducted according to data acquired and analyzed in real time, and accurate control over the test device, implementation progress control over the test progress and accuracy of the test efficiency are achieved; the simulation laying authenticity of the asphalt pavement sample material for the test can be reduced, and the problem that the sample material quality is difficult to control when the sample material is prepared or the sample material is intercepted on the pavement in the traditional test is solved.

Description

Technical Field

[0001] The invention relates to the technical field of engineering test devices, in particular to a compression resistance and damage prevention quality test device for asphalt pavement used in road engineering. Background Art

[0002] Asphalt pavement is a common road paving material with good compressive strength and can withstand the weight of vehicles and pedestrians as well as the pressure of traffic flow. The compressive strength of asphalt pavement mainly depends on the following factors;

[0003] High-quality asphalt materials usually have better compression resistance and can provide a stronger and more durable road surface. Thicker asphalt pavements can usually withstand greater pressure and reduce the risk of road damage. A stable foundation can provide good support for the asphalt pavement, which helps to improve its compression resistance. Careful construction and correct paving technology can ensure the density and uniformity of the asphalt pavement, thereby improving the compression resistance. Most traditional asphalt test samples are made in the laboratory or cut from the road surface.

[0004] In combination with the above content, it should be explained that: in the traditional asphalt compression and damage prevention test process, due to the influence of the source, transportation and other factors of the test sample, there are many uncertain factors in the compression test process, which in turn leads to many deviations in the test results of the asphalt sample. In addition, during the test of the asphalt sample, there is a lack of timely control of the test device for the data of the internal and external changes of the asphalt sample, which causes the test device to continue to operate according to the settings, which not only causes the damage of the compression-damaged asphalt sample, but also delays the overall test device's test efficiency for subsequent asphalt samples;

[0005] In view of the above technical defects, a solution is now proposed. Summary of the invention

[0006] The purpose of the present invention is to provide a compression and damage prevention quality testing device for asphalt pavement for road engineering. It collects data of asphalt pavement samples during the use of the testing device, obtains the surface damage ratio and the internal crack extension value, and comprehensively and efficiently supervises the testing process of the testing device before and during the test, that is, compares and analyzes the collected data with the preset stored data, obtains relevant rating signals, and controls relevant components to perform compensatory operations accordingly. Therefore, it can not only perform high-precision control of the testing device according to the data obtained by real-time collection and analysis, realize precise control of the testing device, control of the implementation progress of the testing process and the accuracy of the testing efficiency, but also restore the authenticity of the simulated paving of the asphalt pavement samples used in the test, avoid the problem of difficult control of sample quality control in traditional testing when preparing samples or intercepting samples from the road surface, and quickly disassemble the samples after the test to solve the problems raised.

[0007] To achieve the above-mentioned object, the present invention provides the following technical solutions: a compression and damage prevention quality test device for asphalt pavement for road engineering, comprising a bottom frame, a lifting mechanism is arranged on the outer wall of the middle part of the bottom frame, the lifting mechanism comprises a storage box and a top plate, a prefabricated frame connected to the top plate is arranged at the top center of the bottom frame, a flip top cover is arranged above the prefabricated frame, and outer beams and inner beams are symmetrically arranged on both sides of the bottom frame;

[0008] A control panel is installed on the outer wall of the middle end face of the outer beam, a driving beam is slidably connected to the inner wall of the outer beam, and a press mounting frame is slidably connected to the surface of the driving beam, a lifting cylinder is arranged on the inner wall of the inner beam, and a magnetic clamp is slidably connected to the surface of the lifting cylinder.

[0009] Furthermore, main traveling cylinders are symmetrically arranged on both sides of the bottom frame, and an inner guide groove is recessed on the inner wall of the end surface of the main traveling cylinder. A balance plate fixedly connected to the main traveling cylinder is arranged below the inner guide groove, and an auxiliary traveling cylinder is arranged at the top center of the balance plate.

[0010] Furthermore, a cross lifting arm is rotatably connected inside the storage box, and multiple sets of shaft sleeves are rotatably sleeved on the top and bottom arm rods of the cross lifting arm, and the shaft sleeves are provided with clamping blocks connected to the storage box and the top plate, and multiple sets of lock boxes are embedded on the top of the top plate.

[0011] Furthermore, a pressure column is embedded in the middle of the lock box, and multiple groups of passive differential rods are arranged on the side of the bottom of the pressure column, and a clamping claw hinged to the passive differential rod is arranged on the side of the top of the lock box.

[0012] Furthermore, a support plate is provided at the bottom of the prefabricated frame, corner columns are clamped at the four corners of the top of the support plate, short side plates connected to the corner columns are symmetrically provided on both sides of the top of the support plate, and long side plates connected to the corner columns are symmetrically provided at both ends of the top of the support plate, a plurality of groups of protrusions are provided at the bottom of the support plate, the four corners of the flip top cover are recessed with grooves that are socketed with the corner columns, and a plurality of groups of plug columns are provided on the outer walls on both sides of the support plate and the flip top cover.

[0013] Furthermore, a main slide is provided at the bottom of the inner beam, a lifting sleeve is provided on the inner wall of the lifting cylinder, and a rotary oil cylinder connected to the magnetic clamp is provided on the surface of the lifting sleeve, and clamping strips are symmetrically provided on the top and bottom of the inner wall of the lifting sleeve, and a plurality of groups of jacks are recessed on the inner wall of the magnetic clamp.

[0014] Furthermore, a secondary slide is provided at the bottom of the outer beam, and side strips are provided at the bottom of both ends of the secondary slide. A lifting cylinder is provided on the inner wall of the outer beam, and an electromagnetic locking block connected to the driving beam is provided on the inner wall of the lifting cylinder.

[0015] Furthermore, an inner push cylinder is embedded in the driving beam, sleeve teeth connected to the outer beam are arranged on both sides of the driving beam, and a hoop member slidably sleeved with the driving beam is provided on the top of the press mounting frame, and the middle part of the hoop member is connected to the inner push cylinder.

[0016] Furthermore, the control panel is internally provided with a processor, a data acquisition module, a data analysis module and a signal execution module;

[0017] The data acquisition module is used to collect the surface damage percentage value BSz and the inner crack extension value NLz of the asphalt pavement sample located on the prefabricated frame during the use of the test device, and send the surface damage percentage value BSz and the inner crack extension value NLz to the data analysis module via the processor;

[0018] After receiving the surface damage ratio value BSz and the internal crack extension value NLz, the data analysis module immediately analyzes the test process efficiency of the test device. The specific analysis process is as follows: the surface damage ratio value BSz and the internal crack extension value NLz within the time threshold are obtained, and the test process coefficient JCx is obtained through the formula, and the preset test process coefficient YJx stored and entered is immediately retrieved from the processor for comparison and analysis with the test process coefficient JCx; if the test process coefficient JCx ≥ the preset test process coefficient YJx, it is determined that there is an abnormality in the asphalt pavement sample within the time threshold, and a control signal is generated, and the generated control signal is sent to the signal execution module through the processor; after receiving the control signal, the signal execution module immediately controls the lifting cylinder to work; if the test process coefficient JCx < the preset test process coefficient YJx, no signal is generated.

[0019] The beneficial effects of the present invention are:

[0020] 1. The present invention acquires the surface damage percentage value and the internal crack extension value by collecting data of the asphalt pavement sample during the use of the test device, and comprehensively and efficiently supervises the test process of the test device before and during the test, that is, compares and analyzes the collected data with the preset storage data, obtains the relevant rating signal, and controls the relevant components to perform compensatory operations accordingly. Therefore, the test device can be controlled with high precision according to the data obtained by real-time collection and analysis, and the precise control of the test device, the progress control of the test process and the accuracy of the test efficiency can be achieved. In addition, the authenticity of the simulated paving of the asphalt pavement sample used for the test can be restored, and the problem of difficult sample quality control in the preparation of samples or the interception of samples from the road surface during traditional tests can be avoided, and the samples after the test can be quickly disassembled;

[0021] 2. The present invention uses the outer beam and the inner beam to assist the bottom frame structure in linkage, forming an internal autonomous pressure detection device for asphalt pavement samples, and cooperates with external engineering machinery to conduct a real compression test on the asphalt pavement samples. The inner beam structure is assisted by a prefabricated frame, a flip cover and a lifting mechanism to help achieve non-destructive flipping of the asphalt pavement samples, facilitate observation of the asphalt pavement samples after the test and collection of test data, and quick dumping of the asphalt pavement samples after the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to facilitate understanding by those skilled in the art, the present invention is further described below in conjunction with the accompanying drawings;

[0023] Figure 1 It is a three-dimensional diagram of the overall structure of the present invention;

[0024] Figure 2 It is a partial structural schematic diagram of the bottom frame of the present invention;

[0025] Figure 3 It is a structural schematic diagram of the storage box of the present invention;

[0026] Figure 4 It is a structural schematic diagram of the lock box of the present invention;

[0027] Figure 5 It is a structural schematic diagram of the inner beam of the present invention;

[0028] Figure 6 It is a structural schematic diagram of the outer side beam of the present invention;

[0029] Figure 7 It is a flow chart of the system of the present invention.

[0030] Figure numerals: 1, bottom frame; 101, main travel cylinder; 102, inner guide groove; 103, balance plate; 104, auxiliary travel cylinder; 2, outer beam; 201, auxiliary slide; 202, side bar; 203, lifting cylinder; 204, driving beam; 205, electromagnetic lock block; 206, sleeve gear; 207, inner push cylinder; 3, control panel; 4, inner beam; 401, lifting cylinder; 402, main slide; 403, lifting sleeve Block; 404, magnetic clamp; 405, clamping strip; 406, rotary cylinder; 5, lifting mechanism; 501, storage box; 502, top plate; 503, cross lifting arm; 504, bushing; 505, lock box; 506, pressure column; 507, passive different rod; 508, clamping claw; 6, prefabricated frame; 601, corner column; 602, long side plate; 603, short side plate; 604, support plate; 7, flip top cover; 8, press mounting frame. DETAILED DESCRIPTION

[0031] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0032] Embodiment 1: This embodiment is used to solve the problem that during the test of traditional asphalt samples, there is a lack of test equipment for timely regulation of data on internal and external changes of asphalt samples, resulting in the test equipment continuing to run according to the settings, which not only causes damage to the compressive damaged asphalt samples, but also delays the overall test equipment's test efficiency for subsequent asphalt samples.

[0033] See also Figure 1 - Figure 7 As shown, this embodiment is a compression and damage prevention quality test device for asphalt pavement for road engineering, comprising a bottom frame 1, a lifting mechanism 5 is arranged on the middle outer wall of the bottom frame 1, the lifting mechanism 5 comprises a storage box 501 and a top plate 502, a prefabricated frame 6 connected to the top plate 502 is arranged at the top center of the bottom frame 1, a flip top cover 7 is arranged above the prefabricated frame 6, and an outer beam 2 and an inner beam 4 are symmetrically arranged on both sides of the bottom frame 1; a control panel 3 is installed on the outer wall of the middle end face of the outer beam 2, a driving beam 204 is slidably connected to the inner wall of the outer beam 2, and a press mounting frame 8 is slidably connected to the surface of the driving beam 204, a lifting cylinder 401 is arranged on the inner wall of the inner beam 4, and a magnetic suction clamp 404 is slidably connected to the surface of the lifting cylinder 401;

[0034] The control panel 3 is internally provided with a processor, a data acquisition module, a data analysis module and a signal execution module; the data acquisition module is used to collect the surface damage ratio BSz and the internal crack extension value NLz of the asphalt pavement sample located on the prefabricated frame 6 during the use of the test device, and send the surface damage ratio BSz and the internal crack extension value NLz to the data analysis module via the processor; 20 minutes within the use time of the test device is set as the time threshold;

[0035] It should be noted that: the surface damage ratio BSz is expressed as the maximum and minimum values ​​of the damage changes on the surface of the asphalt pavement sample obtained within the time threshold due to the pressure of the press body or external engineering machinery. The value of the surface damage ratio BSz reflects the damage to the asphalt pavement sample caused by the compressive damage test, and the larger the value of the surface damage ratio BSz, the lower the compressive performance of the asphalt pavement sample within the time threshold; the internal crack extension value NLz is expressed as the amount of the internal pressure-induced crack gap of the asphalt pavement sample obtained within the time threshold. In addition, the surface damage ratio BSz is collected by a physical scanning sensor installed at the bottom of the press mounting frame 8, and the internal crack extension value NLz is collected by an ultrasonic sensor installed inside the support plate 604;

[0036] After receiving the surface loss ratio value BSz and the internal crack extension value NLz, the data analysis module immediately analyzes the test process efficiency of the test device. The specific analysis process is as follows:

[0037] Obtain the surface loss ratio BSz and the internal crack extension NLz within the time threshold, and use the formula The test progress coefficient JCx is obtained, wherein a and b are the proportional coefficients of the surface damage ratio BSz and the internal crack extension value NLz, respectively, a>b>0, and JCx is expressed as the test progress coefficient. The preset test progress coefficient YJx stored in the processor is immediately retrieved for comparison and analysis with the test progress coefficient JCx;

[0038] If the test process coefficient JCx ≥ the preset test process coefficient YJx, it is determined that the asphalt pavement sample is abnormal within the time threshold, and a control signal is generated, and the generated control signal is sent to the signal execution module through the processor; after receiving the control signal, the signal execution module immediately controls the lifting cylinder 401 to work;

[0039] The press body gradually stops testing and resets, the lifting cylinder 203 carries the press body upward and resets away from the asphalt pavement sample through the driving crossbeam 204, and the inner push cylinder carries the press body away from the top of the prefabricated frame 6 through the hoop and the press mounting frame 8, so that the test personnel and related personnel can observe and collect test data at close range;

[0040] After the data collection of the damaged data of the top test of the asphalt pavement sample is completed, the flip cover 7 is clamped on the top of the prefabricated frame 6, and the notch of the prefabricated frame 6 is connected and locked with the corner column 601. The inspection personnel and related personnel leave temporarily, and the inner beam 4 is driven and pulled by the main cylinder and the main slide 402 to gradually approach the prefabricated frame 6;

[0041] During this process, the lifting cylinder 401 drives the magnetic clamping plate 404 to slide up and calibrate the two sides of the flip cover 7 through the lifting sleeve 403. The magnetic clamping plate 404 is magnetically clamped with the flip cover 7, and the clamping strip 405 clamps the edges of the two sides of the flip cover 7 between the magnetic clamping plates 404. The lifting cylinder 401 drives the clamped prefabricated frame 6 to slide up a certain distance, and the rotary cylinder flips the prefabricated frame 6 through the magnetic clamping plate 404, so that the support plate 604 faces upward and the flip cover 7 faces downward. The lifting cylinder 401 drives the flipped prefabricated frame 6 to slide down, and the operator and related personnel approach to remove the support plate 604, and observe the exposed bottom surface of the asphalt pavement sample material at close range and collect test data, while facilitating the removal of the asphalt pavement sample material from the device after the test;

[0042] If the test process coefficient JCx is less than the preset test process coefficient YJx, no signal is generated.

[0043] Embodiment 2: This embodiment is used to solve the problem that in the traditional asphalt compression and damage prevention test process, due to the influence of the source, transportation and other factors of the test sample, there are many uncertainties in the compression test process, which in turn leads to many deviations in the test results of the asphalt samples.

[0044] See also Figure 1 - Figure 6 As shown, this embodiment is a compression and damage prevention quality test device for asphalt pavement for road engineering, including main travel cylinders 101 symmetrically arranged on both sides of the bottom frame 1, and inner guide grooves 102 are recessed on the inner walls of the end faces of the main travel cylinders 101. Before the test, the test asphalt is poured into the prefabricated frame 6 by external equipment, and after the engineering road pavement paving process and mechanical compaction, the adapted press body is transported to between the outer beam 2 and the inner beam 4, and the lifting cylinder 203 drives the driving beam 204 to slide down close to the press body through the connecting piece, and the inner push cylinder drives the press mounting frame 8 to move to the press body through the hoop, and the two are connected and locked to complete the preparation work before the test. A balance plate 103 fixedly connected to the main travel cylinder 101 is arranged below the inner guide groove 102, and an auxiliary travel cylinder 104 is arranged at the top center of the balance plate 103;

[0045] See also Figure 6 As shown, the internal inspection of the device; the lifting cylinder 203 drives the driving beam 204 to slide up and over the inner beam 4 through the connecting piece, and the inner push cylinder carries the press body to the top of the prefabricated frame 6 through the hoop and the press mounting frame 8, and the lifting cylinder 203 drives the driving beam 204 to slide down until the press body contacts the asphalt pavement sample, and the press body is restricted above the asphalt pavement sample by the lifting cylinder 203 and the driving beam 204.

[0046] The storage box 501 is rotatably connected with a cross lifting arm 503 inside, and multiple sets of shaft sleeves 504 are rotatably sleeved on the top and bottom arm rods of the cross lifting arm 503, and the shaft sleeves 504 are provided with a clamping block connected with the storage box 501 and the top plate 502, and multiple sets of lock boxes 505 are sleeved on the top of the top plate 502;

[0047] A pressure column 506 is embedded in the middle of the lock box 505, and multiple groups of passive rods 507 are arranged on the bottom side of the pressure column 506, and a clamping claw 508 hinged to the passive rod 507 is arranged on the top side of the lock box 505; the lifting mechanism is started, and the hydraulic auxiliary cylinder installed between the cross lifting arms 503 in the storage box 501 is started, and the hydraulic auxiliary cylinder drives the cross lifting arms 503 to be hinged and unfolded through the connecting piece, and lifts the top plate 502 through the shaft sleeve 504, and the top plate 502 is lifted. During the contact between the plate 502 and the support plate 604, the pressure column 506 is pushed down by the support plate 604 to press the passive differential rod 507, and the passive differential rod 507 is deflected by the force and drives multiple groups of clamping claws 508 to deflect each other and approach the pressure column 506, which clamps and locks the bottom convex of the support plate 604. The support plate 604 is lifted by the top plate 502 and further approaches the press body. The press body runs and squeezes the asphalt pavement sample at the same time, and performs local pressure damage prevention detection on the asphalt pavement sample;

[0048] A support plate 604 is provided at the bottom of the prefabricated frame 6, corner posts 601 are clamped at the four corners of the top of the support plate 604, short side plates 603 connected to the corner posts 601 are symmetrically provided on both sides of the top of the support plate 604, and long side plates 602 connected to the corner posts 601 are symmetrically provided at both ends of the top of the support plate 604, a plurality of groups of protrusions are provided at the bottom of the support plate 604, and grooves for sleeve connection with the corner posts 601 are provided at the four corners of the flip top cover 7, and a plurality of groups of plug posts are provided on the outer walls of both sides of the support plate 604 and the flip top cover 7;

[0049] External inspection of the device; the lifting cylinder 203 lifts the driving beam 204 to the highest position through the connecting piece, the main travel cylinder 101 is connected to the inner beam 4 through the main slide 402, and drives the inner beam 4 away from the prefabricated frame 6, the external road rolling engineering machinery is driven close to the device by the operator, and the actual road surface compression and damage prevention inspection is carried out on the asphalt pavement sample by the pressure engineering machinery, and the asphalt pavement sample is reciprocated and statically pressed within the set time;

[0050] A main slide 402 is provided at the bottom of the inner beam 4, a lifting sleeve 403 is provided on the inner wall of the lifting cylinder 401, and a rotary oil cylinder 406 connected to the magnetic suction clamp 404 is provided on the surface of the lifting sleeve 403. The lifting cylinder 401 drives the magnetic suction clamp 404 to slide up and calibrate the two sides of the flip cover 7 through the lifting sleeve 403. The magnetic suction clamp 404 is magnetically clamped with the flip cover 7, and the clamping strip 405 clamps the edges of the two sides of the flip cover 7 between the magnetic suction clamp 404. The lifting cylinder 401 drives the clamped prefabricated frame 6 to slide up a certain distance, and the rotary oil cylinder flips the prefabricated frame 6 through the magnetic suction clamp 404, prompting the support plate 604 to face upward and the flip cover 7 to face downward. The lifting cylinder 401 drives the flipped prefabricated frame 6 to slide down, and the clamping strip 405 is symmetrically provided on the top and bottom of the inner wall of the lifting sleeve 403, and a plurality of groups of jacks are recessed on the inner wall of the magnetic suction clamp 404;

[0051] A secondary slide 201 is provided at the bottom of the outer beam 2, and side bars 202 are provided at the bottom of both ends of the secondary slide 201. A lifting cylinder 203 is provided on the inner wall of the outer beam 2. The lifting cylinder 203 carries the press body upward and slides back to the asphalt pavement sample through the driving crossbeam 204. The inner push cylinder carries the press body away from the top of the prefabricated frame 6 through the hoop and the press mounting frame 8. The inspection personnel and related personnel can observe and collect test data at close range. An electromagnetic lock block 205 connected to the driving crossbeam 204 is provided on the inner wall of the lifting cylinder 203.

[0052] An inner push cylinder 207 is embedded inside the driving beam 204, and sleeve teeth 206 connected to the outer beam 2 are arranged on both sides of the driving beam 204. A hoop slidably sleeved with the driving beam 204 is provided on the top of the press mounting frame 8, and the middle part of the hoop is connected to the inner push cylinder 207.

[0053] In combination with Example 1 and Example 2, it is possible to perform high-precision control of the test device based on the data obtained from real-time collection and analysis, thereby achieving precise control of the test device, control of the implementation progress of the test process and accuracy of the test efficiency, and restore the authenticity of the simulated paving of the asphalt pavement sample used in the test, avoiding the problem of difficult control of sample quality control in traditional test sample preparation or road surface interception, and quick disassembly of the sample after the test.

[0054] The preferred embodiments of the present invention disclosed above are only used to help explain the present invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to only specific implementation methods. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the present invention, so that those skilled in the art can understand and use the present invention well. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A device for testing the compression resistance and damage prevention of asphalt pavement used in road engineering, comprising a bottom frame (1), It is characterized in that A lifting mechanism (5) is arranged on the outer wall of the middle part of the bottom frame (1), and the lifting mechanism (5) comprises a storage box (501) and a top plate (502). A prefabricated frame (6) connected to the top plate (502) is arranged at the top center of the bottom frame (1), and a flip top cover (7) is arranged above the prefabricated frame (6). An outer beam (2) and an inner beam (4) are symmetrically arranged on both sides of the bottom frame (1); A control panel (3) is installed on the outer wall of the middle end face of the outer beam (2); a driving beam (204) is slidably connected to the inner wall of the outer beam (2), and a press mounting frame (8) is slidably connected to the surface of the driving beam (204); a lifting cylinder (401) is provided on the inner wall of the inner beam (4), and a magnetic clamping plate (404) is slidably connected to the surface of the lifting cylinder (401).

2. A device for testing the compression resistance and damage prevention of asphalt pavement used in road engineering according to claim 1, It is characterized in that Main traveling cylinders (101) are symmetrically arranged on both sides of the bottom frame (1), and an inner guide groove (102) is recessed on the inner wall of the end surface of the main traveling cylinder (101), a balance plate (103) fixedly connected to the main traveling cylinder (101) is arranged below the inner guide groove (102), and an auxiliary traveling cylinder (104) is arranged at the top center of the balance plate (103).

3. A device for testing the compression resistance and damage prevention of asphalt pavement used in road engineering according to claim 1, It is characterized in that The storage box (501) is rotatably connected to a cross lifting arm (503) inside, and multiple sets of shaft sleeves (504) are rotatably sleeved on the top and bottom arm rods of the cross lifting arm (503), and the shaft sleeves (504) are provided with a clamping block connected to the storage box (501) and the top plate (502), and multiple sets of lock boxes (505) are sleeved on the top of the top plate (502).

4. The asphalt pavement compression and damage prevention quality testing device for road engineering according to claim 1, It is characterized in that A pressure column (506) is embedded in the middle of the lock box (505), and multiple groups of passive differential rods (507) are arranged on the bottom side of the pressure column (506), and a clamping claw (508) hinged to the passive differential rod (507) is arranged on the top side of the lock box (505).

5. The asphalt pavement compression and damage prevention quality testing device for road engineering according to claim 1, It is characterized in that A support plate (604) is provided at the bottom of the prefabricated frame (6), corner columns (601) are clamped at the four corners of the top of the support plate (604), short side plates (603) connected to the corner columns (601) are symmetrically provided on both sides of the top of the support plate (604), and long side plates (602) connected to the corner columns (601) are symmetrically provided at both ends of the top of the support plate (604), a plurality of groups of protrusions are provided at the bottom of the support plate (604), the four corners of the flip top cover (7) are recessed with notches that are sleeved with the corner columns (601), and a plurality of groups of plug columns are provided on the outer walls of both sides of the support plate (604) and the flip top cover (7).

6. A device for testing the compression resistance and damage prevention of asphalt pavement used in road engineering according to claim 1, It is characterized in that A main slide (402) is arranged at the bottom of the inner beam (4), a lifting sleeve (403) is arranged on the inner wall of the lifting cylinder (401), and a rotary oil cylinder (406) connected to the magnetic clamping plate (404) is arranged on the surface of the lifting sleeve (403), clamping strips (405) are symmetrically arranged at the top and bottom of the inner wall of the lifting sleeve (403), and a plurality of groups of jacks are recessed on the inner wall of the magnetic clamping plate (404).

7. The asphalt pavement compression and damage prevention quality testing device for road engineering according to claim 1, It is characterized in that A secondary slide (201) is arranged at the bottom of the outer beam (2), and side strips (202) are arranged at the bottom of both ends of the secondary slide (201). A lifting cylinder (203) is arranged on the inner wall of the outer beam (2), and an electromagnetic lock block (205) connected to the driving cross beam (204) is arranged on the inner wall of the lifting cylinder (203).

8. A device for testing the compression resistance and damage prevention of asphalt pavement used in road engineering according to claim 7, It is characterized in that An inner push cylinder (207) is embedded inside the driving cross beam (204), and sleeve teeth (206) connected to the outer beam (2) are arranged on both sides of the driving cross beam (204). A hoop member slidably sleeved with the driving cross beam (204) is arranged on the top of the press mounting frame (8), and the middle part of the hoop member is connected to the inner push cylinder (207).

9. The asphalt pavement compression and damage prevention quality testing device for road engineering according to claim 1, It is characterized in that The control panel (3) is internally provided with a processor, a data acquisition module, a data analysis module and a signal execution module; The data acquisition module is used to collect the surface damage percentage value BSz and the internal crack extension value NLz of the asphalt pavement sample located on the prefabricated frame (6) during the use of the test device, and send the surface damage percentage value BSz and the internal crack extension value NLz to the data analysis module via the processor; After receiving the surface damage ratio value BSz and the internal crack extension value NLz, the data analysis module immediately analyzes the test process efficiency of the test device. The specific analysis process is as follows: the surface damage ratio value BSz and the internal crack extension value NLz within the time threshold are obtained, and the test process coefficient JCx is obtained through the formula, and the preset test process coefficient YJx stored and recorded is immediately retrieved from the processor for comparison and analysis with the test process coefficient JCx; if the test process coefficient JCx is greater than or equal to the preset test process coefficient YJx, it is determined that the asphalt pavement sample within the time threshold is abnormal, and a control signal is generated, and the generated control signal is sent to the signal execution module through the processor; after receiving the control signal, the signal execution module immediately controls the lifting cylinder (401) to work; if the test process coefficient JCx is less than the preset test process coefficient YJx, no signal is generated.

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