A ground penetrating radar detection device and a method for synchronously identifying detection defects

Abstract

A ground penetrating radar detection device and a detection defect synchronous marking method. By setting a marking device on an existing ground penetrating radar detection vehicle, when the ground penetrating radar detection vehicle detects the quality of the joint between the new and old roadbeds, a quality defect mark is sprayed on the road surface corresponding to the quality defect part. Through the interpretation of the quality defect marks sprayed on the road surface by the repair personnel, the defect type, depth and size information of the section to be repaired can be obtained in a timely manner, realizing the synchronous progress of the quality detection and repair of the joint between the new and old roadbeds in highway reconstruction and expansion. It not only solves the problem of low efficiency in the handover through the paper defect detection result form, but also solves the problem of information transmission errors easily occurring in oral handover, thus improving the construction efficiency and quality of highway reconstruction and expansion.

Description

Technical Field

[0001] The present invention relates to the technical field of highway subgrade detection, and particularly relates to a ground penetrating radar detection device and a detection defect synchronous marking method. Background Art

[0002] When a highway is expanded or reconstructed, due to the difference in the properties of the old and new subgrades, uneven settlement is very likely to occur, affecting the operation safety of the widened highway; to improve the above situation, a stepped structure is mostly adopted at the joint of the old and new subgrades, and the filling is compacted layer by layer through the steps, and a steel mesh or geogrid is assisted to be laid to solve the uneven settlement problem at the joint of the old and new subgrades during highway expansion and reconstruction.

[0003] During the process of layer-by-layer filling and compaction of the steps, the filling is laid and compacted layer by layer. Due to the step difference between the old and new subgrades, cracks, cavities, and non-compaction defects are likely to appear at the stepped joint of the old and new subgrades. Therefore, how to detect and repair the defects at the joint of the old and new subgrades is the key construction measure to ensure the quality of the joint of the old and new subgrades during highway expansion and reconstruction.

[0004] In the article "Research on Engineering Disease Identification Technology for the Joint of Expanded and Reconstructed Old and New Subgrades Based on Ground Penetrating Radar", a method for using ground penetrating radar to detect the quality of the joint of expanded and reconstructed old and new subgrades of highways is given, and at the same time, many manufacturers have produced ground penetrating radar detection vehicles based on ground penetrating radar. For example, the Chinese invention patent with the application number 202410650979.0 discloses a 3D road ground penetrating radar for expressways, which includes a vehicle body and a ground penetrating radar body arranged at the rear end of the vehicle body. The ground penetrating radar body is arranged inside the ground penetrating radar housing, and a fixing frame for connecting with the rear end of the vehicle body is arranged on the outer side of the ground penetrating radar housing. A partition for dividing the inner cavity of the ground penetrating radar housing into upper and lower parts is arranged inside the ground penetrating radar housing; the ground penetrating radar body is fixed on the top of the partition through a positioning component. This 3D road ground penetrating radar for expressways, through the arrangement that the ground penetrating radar body is detachably fixed inside the ground penetrating radar housing by the positioning component, can cooperate with the unlocking component to release the fixation of the ground penetrating radar body when being rear-ended and push the ground penetrating radar body forward to the bottom of the vehicle body.

[0005] However, the currently produced ground penetrating radar detection vehicles by manufacturers do not have the function of on-site defect marking. After the detection by the ground penetrating radar detection vehicle is completed, a paper defect detection result form needs to be output, and the defect type, size, and geographical position coordinates are marked in the paper defect detection result form. Then, the construction personnel hold the defect detection result form and re-enter the site to determine the geographical position coordinates, type, and size of the defect for defect repair. The above work process is acceptable for the maintenance of in-use highways, but when used for the construction, detection, and repair of the joint of the old and new subgrades during highway expansion and reconstruction, its timeliness is too low, and the synchronous progress of detection and repair cannot be achieved, so it seriously affects the construction efficiency of highway expansion and reconstruction.

[0006] At present, during the construction of highway reconstruction and expansion, a ground penetrating radar detection vehicle is also used for pre-detection. Marking personnel manually mark the defect positions, and then orally transfer the defect types, depths, and sizes to the repair personnel to achieve the operation method of synchronous detection and repair. However, the above operation method has many problems such as a large number of operating personnel and easy information transmission errors in oral handover, resulting in improper repair methods or rework, and seriously affecting the construction efficiency and quality of highway reconstruction and expansion.

[0007] Therefore, how to realize the synchronous automatic detection of the ground penetrating radar detection vehicle and defect marking, and reduce the information transmission errors in oral handover of on-site operating personnel, has an important practical need for improving the construction efficiency and quality of highway reconstruction and expansion. Summary of the Invention

[0008] In order to overcome the deficiencies in the background technology, the present invention discloses a ground penetrating radar detection device and a synchronous defect marking method. By setting a marking device on the ground penetrating radar detection vehicle, while detecting the quality of the joint between the new and old roadbeds, a quality defect mark is sprayed on the road surface corresponding to the quality defect part, solving the problem of information transmission errors in oral handover of on-site operating personnel, and improving the construction efficiency and quality of highway reconstruction and expansion.

[0009] In order to achieve the above-mentioned invention purpose, the present invention adopts the following technical solutions: A ground penetrating radar detection device includes a ground penetrating radar detection vehicle, a ground penetrating radar, a storage battery, and a controller. Four traveling wheels are provided on the ground penetrating radar detection vehicle, and an angle encoder is provided on one of the traveling wheels. The ground penetrating radar, the storage battery, and the controller are provided on the ground penetrating radar detection vehicle. The angle encoder is electrically connected to the ground penetrating radar, the ground penetrating radar is electrically connected to the controller, and the storage battery is electrically connected to the ground penetrating radar and the controller; A ground penetrating radar detection device further includes a marking device and a marking device driver. The marking device and the marking device driver are provided on the ground penetrating radar detection vehicle, and the marking device is located behind the ground penetrating radar; The marking device driver is electrically connected to the marking device, the storage battery, and the controller; When detecting the quality of the joint between the new and old roadbeds during highway reconstruction and expansion, the ground penetrating radar detection vehicle is pushed to travel along the joint between the new and old roadbeds of the highway reconstruction and expansion. The ground penetrating radar detects the quality of the joint between the new and old roadbeds of the highway reconstruction and expansion. If a quality defect is detected, the marking device is driven by the marking device driver to spray a quality defect mark on the road surface corresponding to the quality defect part.

[0010] Further, the marking device includes a marking liquid storage tank and a marking liquid spraying device. The marking liquid spraying device is fixedly provided below the marking liquid storage tank; When the marking device works, it stores marking liquid inside, and the marking liquid is sprayed on the road surface through the marking liquid spraying device to form a quality defect mark.

[0011] Furthermore, a discharge hole is provided at the bottom of the marking liquid storage tank, and the marking liquid storage tank is communicated with the marking liquid spraying device through the discharge hole.

[0012] Furthermore, a number of damping partitions are arranged vertically and horizontally inside the marking liquid storage tank.

[0013] Furthermore, the marking liquid spraying device includes a spraying device body, an upper cover plate, a fixed one-way valve, a movable one-way valve, an electromagnetic driver, and a return spring; a row of through stepped holes are evenly arranged on the spraying device body, the fixed one-way valve is fixedly arranged at the lower part of the stepped hole, the electromagnetic driver is fixedly arranged at the upper part of the stepped hole, the movable one-way valve is movably arranged in the electromagnetic driver, and the return spring is arranged between the fixed one-way valve and the movable one-way valve; the upper cover plate is fixedly arranged on the upper end face of the spraying device body, and a row of cover plate through holes are evenly arranged on the upper cover plate, and the positions of the cover plate through holes correspond to the stepped holes of the spraying device body; when the electromagnetic driver is powered off, the movable one-way valve is driven by the return spring to move upward, and the marking liquid in the marking liquid storage tank enters the cavity between the fixed one-way valve and the movable one-way valve through the movable one-way valve; when the electromagnetic driver is powered on, the movable one-way valve is driven by the electromagnetic driver to move downward, and the marking liquid in the cavity between the fixed one-way valve and the movable one-way valve is pressurized and sprayed on the road surface through the fixed one-way valve to form a quality defect mark on the road surface; the spraying device body and the upper cover plate are made of aluminum alloy.

[0014] Furthermore, the fixed one-way valve includes a fixed one-way valve body, a ceramic ball, a ceramic ball return spring, and a one-way valve plug. A stepped through hole is provided in the fixed one-way valve body, the ceramic ball is movably arranged in the stepped through hole, the one-way valve plug is fixedly arranged at the outer end of the stepped through hole, and the ceramic ball return spring is arranged between the ceramic ball and the one-way valve plug; a through hole is provided on the one-way valve plug; the fixed one-way valve body and the one-way valve plug are made of aluminum alloy.

[0015] Furthermore, the movable one-way valve includes a movable one-way valve body, a ceramic ball, a ceramic ball return spring, and a one-way valve plug. A stepped through hole is provided in the movable one-way valve body, the ceramic ball is movably arranged in the stepped through hole, the one-way valve plug is fixedly arranged at the outer end of the stepped through hole, and the ceramic ball return spring is arranged between the ceramic ball and the one-way valve plug; the movable one-way valve body is made of ferromagnetic material.

[0016] A detection defect synchronous marking method for a ground penetrating radar detection device, the quality defect mark is formed by a number of dot-like marking points sprayed by a marking device; the quality defect mark includes a starting line, a depth coding line A, a depth coding line B, and a defect type line, wherein the starting line is used to determine the orientation for reading the quality defect mark; wherein the depth coding line A and the depth coding line B are used to calculate the depth of the quality defect part at the joint of the new and old roadbeds; wherein the defect type line is used to judge the type of the quality defect at the joint of the new and old roadbeds.

[0017] Furthermore, the depth coding line A and the depth coding line B are one segment or two segments; when the depth coding line A and the depth coding line B are two segments, a blank bit is provided between two adjacent segments, and the blank bit divides the depth coding line A and the depth coding line B into a first depth coding line A, a second depth coding line A, a first depth coding line B, and a second depth coding line B.

[0018] Furthermore, the method for synchronously identifying detection defects of a ground penetrating radar detection device comprises the following steps:

[0019] S1. Defect detection: When conducting quality inspection on the junction of the new and old roadbeds of the highway reconstruction and expansion, the ground-penetrating radar inspection vehicle is pushed to move along the junction of the new and old roadbeds of the highway reconstruction and expansion, and the angle encoder transmits the walking position information of the ground-penetrating radar inspection vehicle to the controller; at the same time, the ground-penetrating radar transmitting antenna emits electromagnetic waves, which are reflected by the junction of the new and old roadbeds of the highway reconstruction and expansion, and then received by the ground-penetrating radar receiving antenna, and transmitted to the controller for signal processing, so as to obtain the position, type and depth information of the quality defects of the junction of the new and old roadbeds of the highway reconstruction and expansion;

[0020] S2. Marking of quality defect marks: The controller automatically generates a quality defect mark pattern and a spraying position according to the location, type and depth information of the quality defect at the junction of the new and old roadbeds of the highway reconstruction and expansion; the controller transmits the quality defect mark pattern to the marking device driver in a timely manner according to the angle encoder signal, and the marking device driver drives the corresponding active one-way valve in the marking device to operate, and finally sprays the quality defect mark on the road surface corresponding to the quality defect position;

[0021] S3. Identification of quality defect signs:

[0022] S3.1. Defect depth calculation: When calculating the quality defect depth of the junction of the new and old roadbeds of the highway reconstruction and expansion, the construction personnel stand on the starting line side, facing the quality defect mark, with the depth coding line A on the left and the depth coding line B on the right; the depth of the quality defect is calculated based on the number of dot marks on the depth coding line A and the depth coding line B;

[0023] When the depth coding line A and the depth coding line B are one segment, the calculation formula is:

[0024] D=(0.1*A+0.01*B)*S......(1),

[0025] Where: D is the depth of the quality defect, A is the number of dot-shaped marking points in the depth coding line A, B is the number of dot-shaped marking points in the depth coding line B, and S is the standard detection depth of the ground penetrating radar;

[0026] When the depth coding line A and the depth coding line B are two segments, the calculation formula is:

[0027] D = (0.1 * A1 + 0.01 * A2 + 0.001 * B1 + 0.0001 * B2) * S......(2),

[0028] Where: D is the depth of the quality defect, A1 is the number of marked points on the first depth coding line A8.2.1, A2 is the number of marked points on the second depth coding line A8.2.2, B1 is the number of marked points on the first depth coding line B8.3.1, B2 is the number of marked points on the second depth coding line B, and S is the standard detection depth of the ground penetrating radar;

[0029] S3.2, Defect type identification: The quality defect type identification of the joint part of the old and new roadbeds in highway reconstruction and expansion is determined according to the shape of the defect type line; when the defect type line is linear, it indicates that the quality defect is a crack, and the length of the line represents the crack length; when the defect type line is rectangular, it indicates that the quality defect is a cavity; when the defect type line is circular or elliptical, it indicates that the quality defect is non-compact; the area of the rectangle, circle or ellipse represents the size of the cavity or non-compact area.

[0030] Due to the adoption of the above-mentioned technical solution, the present invention has the following beneficial effects: A ground penetrating radar detection device disclosed by the present invention realizes spraying quality defect marks on the road surface corresponding to the quality defect part while the ground penetrating radar detection vehicle detects the quality of the joint part of the old and new roadbeds by setting a marking device on the existing ground penetrating radar detection vehicle; through the interpretation of the quality defect marks by the repair personnel, the defect type, depth and size information of the section to be repaired can be obtained in a timely manner, realizing the synchronous improvement of the quality detection and repair of the joint part of the old and new roadbeds in highway reconstruction and expansion; it not only solves the problem of low efficiency in the handover through the paper defect detection result form, but also solves the problem of information transmission errors easily occurring in oral handover, thereby improving the construction efficiency and quality of highway reconstruction and expansion. Brief Description of the Drawings

[0031] Figure 1 is a schematic view of the appearance of the ground penetrating radar detection vehicle;

[0032] Figure 2 is a schematic view of the structural decomposition of the ground penetrating radar detection vehicle;

[0033] Figure 3 is a schematic view of the appearance of the vehicle frame;

[0034] Figure 4 is a schematic view of the appearance of the marking device;

[0035] Figure 5 is a schematic view of the structure of the marking liquid storage tank;

[0036] Figure 6 is a schematic view of the appearance of the marking liquid spraying device;

[0037] Figure 7Schematic diagram of the appearance of the main body of the spraying device;

[0038] Figure 8 Schematic diagram of the sectional structure of the marking device;

[0039] Figure 9 For Figure 8 Partial enlarged view of A;

[0040] Figure 10 Schematic diagram of the sectional structure of the fixed one-way valve;

[0041] Figure 11 Schematic diagram of the sectional structure of the electromagnetic driver and the movable one-way valve;

[0042] Figure 12 Quality defect identification of Example 1;

[0043] Figure 13 Quality defect identification of Example 2;

[0044] Figure 14 Quality defect identification of Example 3;

[0045] Figure 15 Quality defect identification of Example 4;

[0046] Figure 16 Quality defect identification of Example 5.

[0047] In the figure: 1. Ground Penetrating Radar (GPR) detection vehicle; 1.1. Frame; 1.1.1. GPR support block; 1.2. Traveling wheel; 1.3. Angle encoder; 1.4. Battery rack; 1.5. Pusher; 1.6. Controller placement rack; 2. Ground Penetrating Radar (GPR); 3. Marking device; 3.1. Marking liquid storage tank; 3.1.1. Storage tank body; 3.1.2. Discharge hole; 3.1.3. Damping partition; 3.2. Marking liquid spraying device; 3.2.1. Spraying device body; 3.2.1.1. Step hole; 3.2.2. Upper cover plate; 3.2.2.1. Cover plate through hole; 3.2.3. Fixed check valve; 3.2.3.1. Fixed check valve body; 3.2.3.2. Ceramic ball; 3.2.3.3. Ceramic ball return spring; 3.2.3.4. Check valve plug; 3.2.4. Movable check valve; 3.2.4.1. Movable check valve body; 3.2.5. Electromagnetic driver; 3.2.5.1. Coil skeleton; 3.2.5.2. Coil; 3.2.6. Pressure pad; 3.2.7. Return spring; 3.3. Storage tank lid; 4. Battery; 5. Marking device driver; 7. Controller; 8. Quality defect identification; 8.1. Starting line; 8.2. Depth coding line A; 8.2.1. First depth coding line A; 8.2.2. Second depth coding line A; 8.3. Depth coding line B; 8.3.1. First depth coding line B; 8.3.2. Second depth coding line B; 8.4. Defect type line. Detailed implementation mode

[0048] The present invention can be explained in detail through the following embodiments, and the purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0049] See the attached specification Figures 1-3: A ground penetrating radar detection device, comprising a ground penetrating radar detection vehicle 1, a ground penetrating radar 2, a marking device 3, a storage battery 4, a marking device driver 5, and a controller 7; the ground penetrating radar detection vehicle 1 includes a vehicle frame 1.1, traveling wheels 1.2, an angle encoder 1.3, a storage battery rack 1.4, a push handle 1.5, and a controller placement rack 1.6; the vehicle frame 1.1 is a rectangular frame welded by rectangular steel profiles or connected by aluminum alloy profiles, the traveling wheels 1.2 are rotatably arranged on both sides of the vehicle frame 1.1, the angle encoder 1.3 is arranged on the traveling wheel 1.2 on the left front side, the storage battery rack 1.4 is fixedly arranged in the vehicle frame 1.1; the push handle 1.5 is fixedly arranged on the upper part of the rear side of the vehicle frame 1.1, the controller placement rack 1.6 is fixedly arranged between the two push handles 1.5, and the controller 7 is arranged on the controller placement rack 1.6; a ground penetrating radar support block 1.1.1 is fixedly arranged inside the vehicle frame 1.1, the ground penetrating radar 2 is arranged on the ground penetrating radar support block 1.1.1 and is fixedly connected to the ground penetrating radar support block 1.1.1 through a bolt; the storage battery 4 and the marking device driver 5 are arranged in the storage battery rack 1.4; the marking device 3 is fixedly arranged on the upper part of the rear side of the vehicle frame 1.1; the storage battery 4 is electrically connected to the ground penetrating radar 2, the marking device driver 5, and the controller 7 respectively to provide working power for the ground penetrating radar 2, the marking device driver 5, and the controller 7; the angle encoder 1.3 is electrically connected to the ground penetrating radar 2, the ground penetrating radar 2 is electrically connected to the controller 7, and the controller 7 is also electrically connected to the marking device driver 5; when the ground penetrating radar detection device works, the rotation signal of the traveling wheel 1.2 detected by the angle encoder 1.3 (i.e., the traveling distance of the vehicle frame 1.1) and the signal detected by the ground penetrating radar 2 are transmitted to the controller 7 for processing to obtain the position, type, and depth information of the quality defects at the joint of the old and new roadbeds during highway reconstruction and expansion; the controller 7 automatically generates a quality defect identification pattern and a spraying position according to the position, type, and depth information of the quality defects at the joint of the old and new roadbeds during highway reconstruction and expansion;

[0050] See the attached specification Figure 4 : The marking device 3 includes a marking liquid storage tank 3.1 and a marking liquid spraying device 3.2. The marking liquid spraying device 3.2 is fixedly arranged at the lower part of the marking liquid storage tank 3.1 through bolts. When the marking device 3 works, the marking liquid storage tank 3.1 stores a marking liquid of red water-based paint. A storage tank lid 3.3 is also arranged on the upper part of the marking liquid storage tank 3.1 to prevent the marking liquid from splashing out of the marking liquid storage tank 3.1 during the working process of the ground penetrating radar detection device;

[0051] See the attached specification Figure 5: The marking liquid storage tank 3.1 is welded by stainless steel plates, and a discharge hole 3.1.2 is provided at the bottom. The marking liquid storage tank 3.1 is communicated with the marking liquid spraying device 3.2 arranged below through the discharge hole 3.1.2. A number of damping partitions 3.1.3 are arranged vertically and horizontally inside the marking liquid storage tank 3.1 (in order to show the discharge hole 3.1.2 at the bottom of the marking liquid storage tank 3.1, some damping partitions 3.1.3 are cut away in the figure), preventing the marking liquid from overflowing from the marking liquid storage tank 3.1 due to excessive shaking during the operation of a ground penetrating radar detection device;

[0052] See the attached instruction Figures 6-9 : The marking liquid spraying device 3.2 includes a spraying device body 3.2.1, an upper cover plate 3.2.2, a fixed check valve 3.2.3, a movable check valve 3.2.4, an electromagnetic driver 3.2.5, and a return spring 3.2.7. A row (13) of through stepped holes 3.2.1.1 are evenly distributed on the spraying device body 3.2.1. The fixed check valve 3.2.3 is fixedly arranged at the lower part of the stepped hole 3.2.1.1 by threaded connection or interference fit. The electromagnetic driver 3.2.5 is fixedly arranged at the upper part of the stepped hole 3.2.1.1. The movable check valve 3.2.4 is movably arranged in the electromagnetic driver 3.2.5. The return spring 3.2.7 is arranged between the fixed check valve 3.2.3 and the movable check valve 3.2.4. The upper cover plate 3.2.2 is fixedly arranged on the upper end face of the spraying device body 3.2.1 by stainless steel bolts. A row (13) of cover plate through holes 3.2.2.1 are evenly distributed on the upper cover plate 3.2.2. The positions of the cover plate through holes 3.2.2.1 correspond to the stepped holes 3.2.1.1 of the spraying device body 3.2.1. An elastic gasket 3.2.6 is also arranged between the upper cover plate 3.2.2 and the electromagnetic driver 3.2.5, and the electromagnetic driver 3.2.5 is fixed at the upper part of the stepped hole 3.2.1.1 through the gasket 3.2.6. Both the spraying device body 3.2.1 and the upper cover plate 3.2.2 are made of aluminum alloy;

[0053] See the attached instruction Figure 10 : The fixed check valve 3.2.3 includes a fixed check valve body 3.2.3.1, a ceramic ball 3.2.3.2, a ceramic ball return spring 3.2.3.3, and a check valve plug 3.2.3.4. A stepped through hole is provided in the fixed check valve body 3.2.3.1. The ceramic ball 3.2.3.2 is movably arranged in the stepped through hole. The check valve plug 3.2.3.4 is fixedly arranged at the outer end of the stepped through hole by threaded connection or interference fit. The ceramic ball return spring 3.2.3.3 is arranged between the ceramic ball 3.2.3.2 and the check valve plug 3.2.3.4. A through hole is provided on the check valve plug 3.2.3.4, and this hole is the marking liquid passing hole. The fixed check valve body 3.2.3.1 and the check valve plug 3.2.3.4 are made of aluminum alloy;

[0054] See the attached description Figure 11 : The movable one-way valve 3.2.4 includes a movable one-way valve body 3.2.4.1, a ceramic ball 3.2.3.2, a ceramic ball return spring 3.2.3.3, and a one-way valve plug 3.2.3.4. A stepped through-hole is provided in the movable one-way valve body 3.2.4.1. The ceramic ball 3.2.3.2 is movably arranged in the stepped through-hole. The one-way valve plug 3.2.3.4 is fixedly arranged at the outer end of the stepped through-hole. The ceramic ball return spring 3.2.3.3 is arranged between the ceramic ball 3.2.3.2 and the one-way valve plug 3.2.3.4. The movable one-way valve body 3.2.4.1 is made of steel. The electromagnetic driver 3.2.5 includes a coil bobbin 3.2.5.1 and a coil 3.2.5.2 wound around the coil bobbin 3.2.5.1. A through-hole is provided in the middle of the coil bobbin 3.2.5.1. The movable one-way valve 3.2.4 is movably arranged in the through-hole of the coil bobbin 3.2.5.1. When the electromagnetic driver 3.2.5 is powered off, the movable one-way valve 3.2.4 is driven upward by the return spring 3.2.7, and the marking liquid in the marking liquid storage tank 3.1 opens the movable one-way valve 3.2.4 and enters the cavity between the fixed one-way valve 3.2.3 and the movable one-way valve 3.2.4. When the electromagnetic driver 3.2.5 is powered on, the movable one-way valve 3.2.4 is driven downward by the electromagnetic driver 3.2.5, and the marking liquid in the cavity between the fixed one-way valve 3.2.3 and the movable one-way valve 3.2.4 is pressurized and opens the fixed one-way valve 3.2.3 to be sprayed on the road surface;

[0055] During the quality inspection process of the joint part of the new and old roadbeds in highway reconstruction and expansion, the ground penetrating radar detection vehicle 1 is pushed to move along the joint part of the new and old roadbeds in highway reconstruction and expansion. The controller 7 sends the quality defect marks to the marking device driver 5 point by point according to the spraying position (obtained by calculating the rotation signal of the walking wheel 1.2 detected by the angle encoder 1.3). The marking device driver 5 powers on the corresponding electromagnetic driver 3.2.5 in the marking device 3. After the electromagnetic driver 3.2.5 is powered on, it drives the corresponding movable one-way valve 3.2.4 to move downward, sprays the marking liquid on the detected road surface, and finally sprays the quality defect marks on the road surface corresponding to the quality defect part. In this invention, the function of the marking device driver 5 is to amplify the signal sent by the controller 7 and is used to drive the corresponding electromagnetic driver 3.2.5 to work.

[0056] A method for synchronously marking detection defects of a ground penetrating radar detection device, wherein the quality defect marks are formed by a plurality of dot-shaped marking points sprayed by the marking device 3; See the attached description Figures 12-15: The quality defect identification includes a starting line 8.1, a depth coding line A8.2, a depth coding line B8.3, and a defect type line 8.4. Among them, the starting line 8.1 is used to determine the orientation for interpreting the quality defect identification; the depth coding line A8.2 and the depth coding line B8.3 are used to calculate the depth of the quality defect part at the joint of the new and old roadbeds; the defect type line 8.4 is used to judge the type of the quality defect at the joint of the new and old roadbeds.

[0057] Further, the depth coding line A8.2 and the depth coding line B8.3 can be one segment or two segments, which are used for the calculation requirements of different precisions of the depth of the quality defect part; when the depth coding line A8.2 and the depth coding line B8.3 are two segments, there is a blank space between adjacent two segments, and the blank space divides the depth coding line A8.2 and the depth coding line B8.3 into a first depth coding line A8.2.1, a second depth coding line A8.2.2, a first depth coding line B8.3.1, and a second depth coding line B8.3.2.

[0058] The detection defect synchronization identification method of the ground penetrating radar detection device includes the following steps:

[0059] S1. Defect detection: When conducting the quality detection of the joint of the new and old roadbeds in highway reconstruction and expansion, move the ground penetrating radar detection vehicle 1 along the joint of the new and old roadbeds in highway reconstruction and expansion. The angle encoder 1.3 transmits the walking position information of the ground penetrating radar detection vehicle 1 to the controller 7; at the same time, the transmitting antenna of the ground penetrating radar 2 emits electromagnetic waves, which are reflected by the joint of the new and old roadbeds in highway reconstruction and expansion and then received by the receiving antenna of the ground penetrating radar 2 and transmitted to the controller 7 for signal processing to obtain the position, type, and depth information of the quality defect of the joint of the new and old roadbeds in highway reconstruction and expansion.

[0060] S2. Marking of the quality defect identification: The controller 7 automatically generates a quality defect identification pattern and the spraying position according to the position, type, and depth information of the quality defect of the joint of the new and old roadbeds in highway reconstruction and expansion; the controller 7 timely transmits the quality defect identification pattern to the marking device driver 5 according to the signal of the angle encoder 1.3, and the marking device driver 5 drives the corresponding movable one-way valve 3.2.4 in the marking device 3 to act, and finally sprays the quality defect identification on the road surface corresponding to the quality defect part.

[0061] S3. Identification of the quality defect identification:

[0062] S3.1. Defect depth calculation: When calculating the depth of the quality defect of the joint of the new and old roadbeds in highway reconstruction and expansion, the construction personnel stand on the side of the starting line 8.1, facing the quality defect identification, with the depth coding line A8.2 on the left and the depth coding line B8.3 on the right; the depth of the quality defect is calculated according to the number of dot-shaped marking points on the depth coding line A8.2 and the depth coding line B8.3.

[0063] When the depth coding lines A8.2 and B8.3 are in one section, the calculation formula is as follows:

[0064] D = (0.1 * A + 0.01 * B) * S......(1),

[0065] Where: D is the depth of the quality defect, A is the number of dot - shaped marking points at the mid - point of the depth coding line A8.2, B is the number of dot - shaped marking points at the mid - point of the depth coding line B8.3, and S is the standard detection depth of the ground - penetrating radar 2;

[0066] When the depth coding lines A8.2 and B8.3 are in two sections, the calculation formula is as follows:

[0067] D = (0.1 * A1+0.01 * A2 + 0.001 * B1+0.0001 * B2) * S......(2)

[0068] Where: D is the depth of the quality defect, A1 is the number of marking points in the first depth coding line A8.2.1, A2 is the number of marking points in the second depth coding line A8.2.2, B1 is the number of marking points in the first depth coding line B8.3.1, B2 is the number of marking points in the second depth coding line B8.3.2, and S is the standard detection depth of the ground - penetrating radar;

[0069] S3.2. Identification of defect types: The identification of the quality defect types at the joint of the new and old roadbeds in highway reconstruction and expansion is determined according to the shape of the defect type line 8.4; When the defect type line 8.4 is linear, it indicates that the quality defect is a crack, and the length of the line represents the crack length; When the defect type line 8.4 is rectangular, it indicates that the quality defect is a cavity; When the defect type line 8.4 is circular or elliptical, it indicates that the quality defect is non - dense; The area of the rectangle, circle or ellipse represents the size of the cavity or non - dense area.

[0070] See the attached instruction Figure 12 : When identifying the quality defect identification, the repair personnel stand on the lower side of the starting line 8.1, facing the quality defect identification; First, according to the defect type line 8.4 being a straight line, it is judged that the quality defect type at this place is a crack, and its length is the length of the straight line; Its depth D is calculated according to formula (1):

[0071] D=(0.1 * A + 0.01 * B) * S=(0.1 * 2+0.01 * 6) * 5000 = 0.26 * 5000 = 1300mm.

[0072] See the attached instruction Figure 13 : The repair personnel stand on the lower side of the starting line 8.1, facing the quality defect identification; According to the defect type line 8.4 being a square, it is judged that the quality defect type at this place is a cavity, and its area is the area of the square; Its depth D is calculated according to formula (1):

[0073] D = (0.1 * A + 0.01 * B) * S = (0.1 * 3 + 0.01 * 7) * 5000 = 0.37 * 5000 = 1850 mm.

[0074] See the attached specification Figure 14 : The repair personnel stand on the lower side of the starting line 8.1, facing the quality defect label; according to the defect type line 8.4 being circular, it is judged that the quality defect type at this place is non-compact, and its area is the area of the circle; its depth D is calculated according to formula (1):

[0075] D = (0.1 * A + 0.01 * B) * S = (0.1 * 4 + 0.01 * 3) * 5000 = 0.37 * 5000 = 2150 mm.

[0076] See the attached specification Figure 15 : The repair personnel stand on the lower side of the starting line 8.1, facing the quality defect label; according to the defect type line 8.4 being oval, it is judged that the quality defect type at this place is non-compact, and its area is the area of the oval; its depth D is calculated according to formula (1):

[0077] D = (0.1 * A + 0.01 * B) * S = (0.1 * 5 + 0.01 * 3) * 5000 = 0.53 * 5000 = 2650 mm.

[0078] See the attached specification Figure 16 : In this embodiment, both the depth coding line A8.2 and the depth coding line B8.3 are in two sections; the repair personnel stand on the lower side of the starting line 8.1, facing the quality defect label; according to the defect type line 8.4 being oval, it is judged that the quality defect type at this place is non-compact, and its area is the area of the oval; its depth D is calculated according to formula (2):

[0079] D = (0.1 * A1 + 0.01 * A2 + 0.001 * B1 + 0.0001 * B2) * S

[0080] = (0.1 * 3 + 0.01 * 3 + 0.001 * 3 + 0.0001 * 6) * 5000 = 0.3336 * 5000 = 1668 mm.

[0081] After the construction repair personnel judge the position, type and depth information of the quality defects at the joint of the new and old roadbeds in highway reconstruction and expansion according to the quality defect labels on the ground, corresponding repair measures can be taken to repair the quality defects at the joint of the new and old roadbeds in highway reconstruction and expansion.

[0082] During the detection and repair of the quality defects at the joint of the new and old roadbeds in the above-mentioned highway reconstruction and expansion, the two can be implemented synchronously. There is no need for the detection personnel and the defect repair personnel to transfer defect information through a paper defect detection result form or orally, which not only solves the problem of low efficiency in defect information handover, but also solves the problem of easy mistakes in defect information handover, thus greatly improving the construction efficiency and quality of highway reconstruction and expansion.

[0083] The parts not detailed in the present invention are prior art.

Claims

1. A ground penetrating radar detection device, comprising a ground penetrating radar detection vehicle (1), a ground penetrating radar (2), a battery (4), and a controller (7); the ground penetrating radar detection vehicle (1) is provided with four running wheels (1.2), one of the running wheels (1.2) is provided with an angle encoder (1.3); the ground penetrating radar (2), the battery (4), and the controller (7) are arranged on the ground penetrating radar detection vehicle (1); the angle encoder (1.3) is electrically connected to the ground penetrating radar (2); the ground penetrating radar (2) is electrically connected to the controller (7); and the battery (4) is electrically connected to the ground penetrating radar (2) and the controller (7); Its characteristics are: It also includes a marking device (3) and a marking device driver (5), wherein the marking device (3) and the marking device driver (5) are arranged on a ground-penetrating radar inspection vehicle (1); the marking device driver (5) is electrically connected to the marking device (3), a storage battery (4), and a controller (7); when quality inspection of the junction of the new and old roadbeds of a highway reconstruction and expansion is performed, the ground-penetrating radar inspection vehicle (1) is driven to move along the junction of the new and old roadbeds of the highway reconstruction and expansion, and the ground-penetrating radar (2) performs quality inspection on the junction of the new and old roadbeds of the highway reconstruction and expansion. If a quality defect is detected, the marking device (3) is driven by the marking device driver (5) to spray a quality defect mark on the road surface corresponding to the quality defect portion; The marking device (3) comprises a marking liquid storage box (3.1) and a marking liquid spraying device (3.2), wherein the marking liquid spraying device (3.2) is fixedly arranged at the lower part of the marking liquid storage box (3.1); when the marking device (3) is in operation, marking liquid is stored inside, and the marking liquid is sprayed on the road surface through the marking liquid spraying device (3.2), thereby forming a quality defect mark; The marking liquid spraying device (3.2) comprises a spraying device body (3.2.1), an upper cover plate (3.2.2), a fixed one-way valve (3.2.3), a movable one-way valve (3.2.4), an electromagnetic driver (3.2.5), and a return spring (3.2.7); a row of through-step holes (3.2.7) are evenly distributed on the spraying device body (3.2.1) 3.2.1.1), the fixed one-way valve (3.2.3) is fixedly arranged at the lower part of the step hole (3.2.1.1), the electromagnetic driver (3.2.5) is fixedly arranged at the upper part of the step hole (3.2.1.1), the movable one-way valve (3.2.4) is movably arranged in the electromagnetic driver (3.2.5), and the return spring (3.2.7) is arranged between the fixed one-way valve (3.2.3) and the movable one-way valve (3.2.4); the upper cover plate (3.2.2) is fixedly arranged on the upper end surface of the spray device body (3.2.1), and a row of cover plate through holes (3.2.2.1) are evenly arranged on the upper cover plate (3.2.2), and the position of the cover plate through holes (3.2.2.1) corresponds to the step hole (3.2.1.1) of the spray device body (3.2.1); when the electromagnetic driver When the actuator (3.2.5) is powered off, the movable one-way valve (3.2.4) is driven by the return spring (3.2.7) to move upward, and the marking liquid in the marking liquid storage box (3.1) passes through the movable one-way valve (3.2.4) and enters the cavity between the fixed one-way valve (3.2.3) and the movable one-way valve (3.2.4); when the electromagnetic driver (3.2.5) is powered on, the movable one-way valve (3.2.4) is driven by the electromagnetic driver (3.2.5) to move downward, and the marking liquid in the cavity between the fixed one-way valve (3.2.3) and the movable one-way valve (3.2.4) is pressurized and sprayed on the road surface through the fixed one-way valve (3.2.3), forming a quality defect mark on the road surface; the spraying device body (3.2.1) and the upper cover plate (3.2.2) are made of aluminum alloy.

2. A ground penetrating radar detection device according to claim 1, characterized in that: A discharge hole (3.1.2) is provided at the bottom of the marking liquid storage box (3.1), and the marking liquid storage box (3.1) is connected to the marking liquid spraying device (3.2) through the discharge hole (3.1.2).

3. A ground penetrating radar detection device according to claim 1, characterized in that: A plurality of damping partitions (3.1.3) are arranged vertically and horizontally inside the marking liquid storage box (3.1).

4. A ground penetrating radar detection device according to claim 1, characterized in that: The fixed one-way valve (3.2.3) comprises a fixed one-way valve body (3.2.3.1), a ceramic ball (3.2.3.2), a ceramic ball return spring (3.2.3.3) and a one-way valve plug (3.2.3.4). A stepped through hole is provided in the fixed one-way valve body (3.2.3.1), the ceramic ball (3.2.3.2) is movably arranged in the stepped through hole, the one-way valve plug (3.2.3.4) is fixedly arranged at the outer end of the stepped through hole, and the ceramic ball return spring (3.2.3.3) is arranged between the ceramic ball (3.2.3.2) and the one-way valve plug (3.2.3.4); a through hole is provided in the one-way valve plug (3.2.3.4); the fixed one-way valve body (3.2.3.1) and the one-way valve plug (3.2.3.4) are made of aluminum alloy.

5. A ground penetrating radar detection device according to claim 4, characterized in that: The movable one-way valve (3.2.4) comprises a movable one-way valve body (3.2.4.1), a ceramic ball (3.2.3.2), a ceramic ball return spring (3.2.3.3), and a one-way valve plug (3.2.3.4); a stepped through hole is provided in the movable one-way valve body (3.2.4.1), the ceramic ball (3.2.3.2) is movably arranged in the stepped through hole, the one-way valve plug (3.2.3.4) is fixedly arranged at the outer end of the stepped through hole, and the ceramic ball return spring (3.2.3.3) is arranged between the ceramic ball (3.2.3.2) and the one-way valve plug (3.2.3.4); the movable one-way valve body (3.2.4.1) is made of ferromagnetic material.

6. A method for synchronously identifying detection defects based on the ground penetrating radar detection device of claim 5, characterized in that: The following steps are involved: S1. Defect detection: When performing quality inspection on the junction of the new and old roadbeds of the highway reconstruction and expansion, the ground penetrating radar inspection vehicle (1) is pushed to move along the junction of the new and old roadbeds of the highway reconstruction and expansion, and the angle encoder (1.3) transmits the moving position information of the ground penetrating radar inspection vehicle (1) to the controller (7); at the same time, the transmitting antenna of the ground penetrating radar (2) emits electromagnetic waves, which are reflected by the junction of the new and old roadbeds of the highway reconstruction and expansion, and are received by the receiving antenna of the ground penetrating radar (2) and transmitted to the controller (7) for signal processing, thereby obtaining the position, type and depth information of the quality defects of the junction of the new and old roadbeds of the highway reconstruction and expansion; S2. Marking of quality defect marks: The controller (7) automatically generates a quality defect mark pattern and spraying position information according to the position, type and depth information of the quality defect at the junction of the new and old roadbeds of the highway reconstruction and expansion; the controller (7) timely transmits the quality defect mark pattern to the marking device driver (5) according to the signal of the angle encoder (1.3); the marking device driver (5) drives the corresponding active one-way valve (3.2.4) in the marking device (3) to operate, and finally sprays the quality defect mark on the road surface corresponding to the quality defect position; the quality defect mark is formed by a plurality of dot-shaped marking points sprayed by the marking device (3); the quality defect mark includes a starting line (8.1), a depth coding line A (8.2), a depth coding line B (8.3), and a defect type line (8.4), wherein the starting line ( 8.1) is used to determine the orientation of the quality defect mark; wherein the depth coding line A (8.2) and the depth coding line B (8.3) are used to calculate the depth of the quality defect position at the junction of the new and old roadbeds; wherein the defect type line (8.4) is used to determine the type of the quality defect at the junction of the new and old roadbeds; the depth coding line A (8.2) and the depth coding line B (8.3) are one section or two sections; when the depth coding line A (8.2) and the depth coding line B (8.3) are two sections, a blank position is provided between the two adjacent sections, and the blank position divides the depth coding line A (8.2) and the depth coding line B (8.3) into a first depth coding line A (8.2.1), a second depth coding line A (8.2.2), a first depth coding line B (8.3.1), and a second depth coding line B (8.3.2); S3. Identification of quality defect signs: S3.

1. Defect depth calculation: When calculating the quality defect depth of the junction of the new and old roadbeds of highway reconstruction and expansion, the construction personnel stand on the starting line (8.1) side, facing the quality defect mark, with the depth coding line A (8.2) on the left and the depth coding line B (8.3) on the right; the depth of the quality defect is calculated based on the number of dot-shaped marking points on the depth coding line A (8.2) and the depth coding line B (8.3); When the depth coding line A (8.2) and the depth coding line B (8.3) are one segment, the calculation formula is: D=(0.1*A+0.01*B)*S......(1), Where: D is the depth of the quality defect, A is the number of dot marks in the depth coding line A (8.2), B is the number of dot marks in the depth coding line B (8.3), and S is the standard detection depth of the ground penetrating radar (2); When the depth coding line A (8.2) and the depth coding line B (8.3) are two segments, the calculation formula is: D=(0.1*A1+0.01*A2+0.001*B1+0.0001*B2)*S......(2) Where: D is the depth of the quality defect, A1 is the number of marking points in the first depth coding line A (8.2.1), A2 is the number of marking points in the second depth coding line A (8.2.2), B1 is the number of marking points in the first depth coding line B (8.3.1), B2 is the number of marking points in the second depth coding line B (8.3.2), S is the standard detection depth of the ground penetrating radar; S3.

2. Defect type identification: The quality defect type of the junction between the old and new roadbeds of highway reconstruction and expansion is identified based on the shape of the defect type line (8.4). When the defect type line (8.4) is linear, it indicates that the quality defect is a crack, and the length of the line indicates the length of the crack. When the defect type line (8.4) is rectangular, it indicates that the quality defect is a void. When the defect type line (8.4) is circular or elliptical, it indicates that the quality defect is loose. The area of ​​the rectangle, circle or ellipse indicates the size of the void or loose area.

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