Ground penetrating radar detection device and detection defect synchronous identification method

Abstract

According to the ground penetrating radar detection device and the detection defect synchronous identification method, a marking device is arranged on an existing ground penetrating radar detection vehicle, and while the ground penetrating radar detection vehicle detects the quality of a combination part of a new roadbed and an old roadbed, a quality defect identifier is sprayed on a road surface corresponding to a quality defect part; the repair personnel can timely obtain the type, depth and size information of the defect of the road section to be repaired by interpreting the quality defect mark sprayed on the road surface, so that the synchronous quality detection and repair of the new and old roadbed joint part of the road reconstruction and extension are realized; the problem of low efficiency of handover through a paper defect detection result table is solved, and the problem of information transmission errors easily caused by oral handover is also solved, so that the construction efficiency and quality of road reconstruction and extension are improved.

Description

Technical Field

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

[0002] When a highway is rebuilt or expanded, uneven settlement is very likely to occur due to the difference in the properties of the old and new roadbeds, affecting the operational safety of the widened highway. To improve the above situation, a stepped structure is often used at the junction of the old and new roadbeds. The structure is compacted layer by layer through filling and compaction, and reinforced mesh or geonet is laid to assist in solving the problem of uneven settlement at the junction of the old and new roadbeds during highway reconstruction or expansion.

[0003] In the process of step-by-step filling and compaction, the filling is laid and compacted layer by layer. Due to the step difference between the new and old roadbeds, cracks, voids, and loose defects are prone to occur at the junction of the stepped new and old roadbeds. Therefore, how to detect defects at the junction of the new and old roadbeds and repair them is a key construction measure to ensure the quality of the junction of the new and old roadbeds in highway reconstruction and expansion.

[0004] In the article "Research on Engineering Disease Identification Technology of the Junction of New and Old Roadbeds in Reconstruction and Expansion Based on Ground Penetrating Radar", a method of using ground penetrating radar to detect the quality of the junction of new and old roadbeds in highway reconstruction and expansion is given. 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 application number 202410650979.0 discloses a 3D road ground penetrating radar for highways, 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 on the inner side of the ground penetrating radar shell, and the outer side of the ground penetrating radar shell is provided with a fixing frame for connecting with the rear end of the vehicle body, and the inner side of the ground penetrating radar shell is provided with a partition for dividing the inner cavity of the ground penetrating radar shell into upper and lower parts; the ground penetrating radar body is fixed to the top of the partition by a positioning component. The ground penetrating radar body of the highway 3D road ground penetrating radar is detachably fixed to the inner side of the ground penetrating radar shell by the positioning component, and the unlocking component can realize the fixation release 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 ground penetrating radar inspection vehicles currently produced by manufacturers do not have the function of on-site defect identification. After the ground penetrating radar inspection vehicle is used for inspection, it is necessary to output a paper defect inspection result table, in which the defect type, size and geographical location coordinates are marked. Then the construction personnel will re-enter the site with the defect inspection result table to determine the geographical location coordinates, type and size of the defect, and repair the defect. The above workflow is acceptable for the maintenance of highways in use, but when it is used for the construction and inspection and repair of the junction of the old and new roadbeds in highway reconstruction and expansion, its timeliness is too low, and it is impossible to achieve simultaneous inspection and repair, which seriously affects the construction efficiency of highway reconstruction and expansion.

[0006] At present, in the construction of highway reconstruction and expansion, there is also a method of using ground penetrating radar ground penetrating radar inspection vehicles to detect in advance, and the marking personnel manually mark the defect location, and then verbally hand over the defect type, depth and size to the repair personnel to achieve simultaneous detection and repair. However, the above operation method has many problems such as too many operators and easy information transmission errors during verbal handover, which results in improper repair methods or rework, and also seriously affects the construction efficiency and quality of highway reconstruction and expansion.

[0007] Therefore, how to realize the simultaneous and automatic detection of ground penetrating radar ground penetrating radar inspection vehicles and defect marking, and reduce the information transmission errors caused by on-site workers and verbal handovers, is 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 shortcomings of the background technology, the present invention discloses a ground penetrating radar detection device and a method for synchronously marking detection defects. By arranging a marking device on a ground penetrating radar detection vehicle, it is possible to spray a quality defect mark on the road surface corresponding to the quality defect position while detecting the quality of the junction of the new and old roadbeds, thereby solving the problem of information transmission errors caused by oral handover by on-site workers and improving the construction efficiency and quality of highway reconstruction and expansion.

[0009] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: a ground penetrating radar detection device, including a ground penetrating radar detection vehicle, a ground penetrating radar, a battery, and a controller. The ground penetrating radar detection vehicle is provided with four running wheels, one of which is provided with an angle encoder. The ground penetrating radar, the battery, and the controller are arranged 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 battery is electrically connected to the ground penetrating radar and the controller; a ground penetrating radar detection device also includes a marking device and a marking device driver. The marking device and the marking device driver are arranged on the ground penetrating radar detection vehicle, and the marking device is located at the rear side of the ground penetrating radar; the marking device driver is electrically connected to the marking device, the battery, and the controller; when performing quality inspection of the junction of the new and old roadbeds of the highway reconstruction and expansion, the ground penetrating radar detection vehicle is pushed to walk along the junction of the new and old roadbeds of the highway reconstruction and expansion, and the ground penetrating radar 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 is driven by the marking device driver to spray a quality defect mark on the road surface corresponding to the quality defect position.

[0010] Furthermore, the marking device includes a marking liquid storage box and a marking liquid spraying device, and the marking liquid spraying device is fixedly arranged at the lower part of the marking liquid storage box; when the marking device is working, marking liquid is stored 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 box, and the marking liquid storage box is connected to the marking liquid spraying device through the discharge hole.

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

[0013] Furthermore, the marking liquid spraying device comprises a spraying device body, an upper cover plate, a fixed one-way valve, a movable one-way valve, an electromagnetic driver, and a reset spring; a row of through-step holes are evenly distributed on the spraying device body, the fixed one-way valve is fixedly arranged at the lower part of the step hole, the electromagnetic driver is fixedly arranged at the upper part of the step hole, the movable one-way valve is movably arranged in the electromagnetic driver, and the reset 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 surface of the spraying device body, and a row of cover plate through holes are evenly distributed on the upper cover plate, and the cover plate through holes are located at the upper end surface of the spraying device body, and the upper cover plate through holes are evenly distributed on the upper cover plate. The arrangement corresponds to the step hole of the spray device body; when the electromagnetic driver is powered off, the movable one-way valve is driven by the reset spring to move upward, and the marking liquid in the marking liquid storage box passes through the movable one-way valve and enters the cavity between the fixed one-way valve and 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, forming a quality defect mark on the road surface; the spray 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. The fixed one-way valve body is provided with a step through hole, the ceramic ball is movably arranged in the step through hole, the one-way valve plug is fixedly arranged at the outer end of the step through hole, and the ceramic ball return spring is arranged between the ceramic ball and the one-way valve plug; the one-way valve plug is provided with a through hole; 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. The movable one-way valve body is provided with a step through hole, the ceramic ball is movably arranged in the step through hole, the one-way valve plug is fixedly arranged at the outer end of the step 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 method for synchronously marking detection defects of a ground penetrating radar detection device, wherein the quality defect mark is formed by a plurality of dot-shaped marking points sprayed by a marking device; the quality defect mark comprises 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 of 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 of the junction of the new and old roadbeds; wherein the defect type line is used to judge the type of the quality defect of the junction 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: 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; 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; 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 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; When the depth coding line A and the depth coding line B 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-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; When the depth coding line A and the depth coding line B 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 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 B, and 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. When the defect type line is linear, it means that the quality defect is a crack, and the length of the line indicates the length of the crack. When the defect type line is rectangular, it means that the quality defect is a void. When the defect type line is circular or elliptical, it means that the quality defect is not compact. The area of ​​the rectangle, circle or ellipse indicates the size of the void or non-compact area.

[0019] Due to the adoption of the technical scheme as described above, the present invention has the following beneficial effects: a ground penetrating radar detection device disclosed in the present invention, by arranging a marking device on an existing ground penetrating radar detection vehicle, realizes that the ground penetrating radar detection vehicle detects the quality of the junction of the new and old roadbeds while spraying a quality defect mark on the road surface corresponding to the quality defect position; the repair personnel obtain the defect type, depth and size information of the road section to be repaired in time by interpreting the quality defect mark, thereby realizing the simultaneous improvement of the quality inspection and repair of the junction of the new and old roadbeds of the highway reconstruction and expansion; it not only solves the problem of low efficiency in handover through paper defect detection result tables, but also solves the problem of information transmission errors that are prone to occur in oral handover, thereby improving the construction efficiency and quality of highway reconstruction and expansion. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the appearance of the ground penetrating radar detection vehicle; Figure 2 This is a schematic diagram of the structure decomposition of the ground penetrating radar detection vehicle; Figure 3 The figure is a schematic diagram of the appearance of the frame; Figure 4 This is a schematic diagram of the appearance of the marking device; Figure 5 It is a structural schematic diagram of a marking liquid storage box; Figure 6 This is a schematic diagram of the appearance of a marking liquid spraying device; Figure 7 This is a schematic diagram of the appearance of the spraying device; Figure 8 It is a schematic diagram of the cross-sectional structure of the marking device; Fig. 9 for Figure 8 A schematic diagram of a local A enlargement; Fig.10 It is a schematic diagram of the cross-sectional structure of a fixed one-way valve; Fig.11 It is a schematic diagram of the cross-sectional structure of the electromagnetic driver and the movable one-way valve; Fig.12 The quality defect mark of the first embodiment; Fig.13 This is the quality defect identification of Example 2; Fig.14 The quality defect mark of the third embodiment; Fig.15 The quality defect mark of the fourth embodiment; Fig.16 This is the quality defect identification of Example 5.

[0021] In the figure: 1. Ground penetrating radar detection vehicle; 1.1. Vehicle frame; 1.1.1. Ground penetrating radar support block; 1.2. Travel wheel; 1.3. Angle encoder; 1.4. Battery rack; 1.5. Push handle; 1.6. Controller placement rack; 2. Ground penetrating radar; 3. Marking device; 3.1. Marking liquid storage box; 3.1.1. Storage box body; 3.1.2. Discharge hole; 3.1.3. Damping baffle; 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 one-way valve; 3.2.3.1. Fixed one-way valve body; 3.2.3.2. Ceramic ball; 3.2.3.3. Ceramic Ceramic ball return spring; 3.2.3.4, one-way valve plug; 3.2.4, movable one-way valve; 3.2.4.1, movable one-way valve body; 3.2.5, electromagnetic driver; 3.2.5.1, coil frame; 3.2.5.2, coil; 3.2.6, pressure pad; 3.2.7, return spring; 3.3, storage box cover; 4, battery; 5, marking device driver; 7, controller; 8, quality defect mark; 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 DESCRIPTION

[0022] The present invention can be explained in detail by the following examples, and the purpose of disclosing the present invention is to protect all technical improvements within the scope of the present invention.

[0023] See the instruction manual Figure 1-3: A ground penetrating radar detection device, including a ground penetrating radar detection vehicle 1, a ground penetrating radar 2, a marking device 3, a battery 4, a marking device driver 5, and a controller 7; the ground penetrating radar detection vehicle 1 includes a frame 1.1, a running wheel 1.2, an angle encoder 1.3, a battery rack 1.4, a pusher 1.5, and a controller placement rack 1.6; the frame 1.1 is a rectangular frame formed by welding rectangular steel profiles or connecting aluminum alloy profiles, the running wheels 1.2 are rotatably arranged on both sides of the frame 1.1, the angle encoder 1.3 is arranged on the running wheel 1.2 on the left front side, and the battery rack 1.4 is fixedly arranged in the frame 1.1; the pusher 1.5 is fixedly arranged on the upper rear side of the frame 1.1, the controller placement rack 1.6 is fixedly arranged between the two pushers 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 on the inner side of the frame 1.1, and the ground penetrating radar 2 is arranged on the ground penetrating radar support block 1.1.1, and is connected to the ground penetrating radar support by a latch. The block 1.1.1 is fixedly connected; the battery 4 and the marking device driver 5 are arranged in the battery rack 1.4; the marking device 3 is fixedly arranged on the upper rear side of the frame 1.1; the battery 4 is electrically connected to the ground penetrating radar 2, the marking device driver 5 and the controller 7 respectively, and provides 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 a ground penetrating radar detection device is working, the rotation signal of the walking wheel 1.2 (i.e., the walking distance of the frame 1.1) detected by the angle encoder 1.3 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 junction of the new and old roadbeds of the highway reconstruction and expansion; the controller 7 automatically generates the quality defect identification pattern and the spraying position according to the position, type and depth information of the quality defects at the junction of the new and old roadbeds of the highway reconstruction and expansion; See the instruction manual Figure 4 :The marking device 3 includes a marking liquid storage box 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 box 3.1 by bolts. When the marking device 3 is working, the marking liquid storage box 3.1 stores red water-based paint marking liquid. The upper part of the marking liquid storage box 3.1 is also provided with a storage box cover 3.3 to prevent the marking liquid from splashing out of the marking liquid storage box 3.1 during the working process of the ground penetrating radar detection device; See the instruction manual Figure 5: The marking liquid storage box 3.1 is welded from stainless steel plates, and a discharge hole 3.1.2 is provided at the bottom. The marking liquid storage box 3.1 is connected to the marking liquid spraying device 3.2 arranged at the bottom through the discharge hole 3.1.2; a plurality of damping baffles 3.1.3 are also arranged vertically and horizontally inside the marking liquid storage box 3.1 (in order to show the discharge hole 3.1.2 at the bottom of the marking liquid storage box 3.1, part of the damping baffles 3.1.3 are cut away in the figure to prevent the marking liquid from overflowing from the marking liquid storage box 3.1 due to excessive shaking during the operation of a ground penetrating radar detection device; See the instruction manual Figure 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 one-way valve 3.2.3, a movable one-way valve 3.2.4, an electromagnetic driver 3.2.5, and a reset spring 3.2.7; a row (13) of step holes 3.2.1.1 are evenly distributed on the spraying device body 3.2.1, the fixed one-way valve 3.2.3 is fixedly arranged at the lower part of the step 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 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 reset spring 3.2.7 is arranged on 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 by means of stainless steel bolts, and a row (13) of cover plate through holes 3.2.2.1 are evenly distributed on the upper cover plate 3.2.2, and the positions of the cover plate through holes 3.2.2.1 correspond to the step holes 3.2.1.1 of the spray device body 3.2.1; an elastic pressure pad 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 to the upper part of the step hole 3.2.1.1 by means of the pressure pad 3.2.6; the spray device body 3.2.1 and the upper cover plate 3.2.2 are both made of aluminum alloy; See the instruction manual Fig.10 :The fixed one-way valve 3.2.3 includes a fixed one-way valve body 3.2.3.1, a ceramic ball 3.2.3.2, a ceramic ball reset spring 3.2.3.3, and a one-way valve plug 3.2.3.4. The fixed one-way valve body 3.2.3.1 is provided with a step through hole, the ceramic ball 3.2.3.2 is movably arranged in the step through hole, the one-way valve plug 3.2.3.4 is fixedly arranged at the outer end of the step through hole by threaded connection or interference fit, and the ceramic ball reset 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 one-way valve plug 3.2.3.4 is provided with a through hole, which is a hole for the marker liquid to pass through; 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; See the instruction manual Fig.11The 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. The movable one-way valve body 3.2.4.1 is provided with a step through hole, the ceramic ball 3.2.3.2 is movably arranged in the step through hole, the one-way valve plug 3.2.3.4 is fixedly arranged at the outer end of the step 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 steel; the electromagnetic driver 3.2.5 comprises a coil frame 3.2.5.1 and a coil 3.2.5.2 wound on the coil frame 3.2.5.1, A through hole is provided in the middle of the coil frame 3.2.5.1, and the movable one-way valve 3.2.4 is movably arranged in the through hole of the coil frame 3.2.5.1; when the electromagnetic driver 3.2.5 is powered off, the movable one-way valve 3.2.4 is driven by the reset spring 3.2.7 to move upward, and the marking liquid in the marking liquid storage box 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 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 to open the fixed one-way valve 3.2.3 and spray it on the road surface; During the quality inspection of 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 controller 7 sends the quality defect mark point by point to the marking device driver 5 according to the spraying position (obtained by calculating the rotation signal of the walking wheel 1.2 detected by the angle encoder 1.3), and the marking device driver 5 energizes the corresponding electromagnetic driver 3.2.5 in the marking device 3. After the electromagnetic driver 3.2.5 is energized, it drives the corresponding active one-way valve 3.2.4 to move downward, sprays the marking liquid on the inspection road surface, and finally sprays the quality defect mark on the road surface corresponding to the quality defect position; in this invention, the function of the marking device driver 5 is to amplify the signal sent by the controller 7 to drive the corresponding electromagnetic driver 3.2.5 to work.

[0024] A method for synchronously marking detection defects of a ground penetrating radar detection device, wherein the quality defect mark is formed by a plurality of dot-shaped marking points sprayed by a marking device 3; see the attached manual Figure 12-15 :The quality defect mark 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, wherein the starting line 8.1 is used to determine the orientation of the quality defect mark; wherein the depth coding line A8.2 and the depth coding line B8.3 are used to calculate the depth of the quality defect part of 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 of the junction of the new and old roadbeds; Furthermore, the depth coding line A8.2 and the depth coding line B8.3 can be one section or two sections, which are used for calculating the 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 sections, a blank position is provided between the two adjacent sections, and the blank position divides the depth coding line A8.2 and the depth coding line B8.3 into the first depth coding line A8.2.1, the second depth coding line A8.2.2, the first depth coding line B8.3.1, and the second depth coding line B8.3.2; The method for synchronously identifying detection defects of a ground penetrating radar detection device comprises the following steps: 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 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 walking 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, 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; S2. Marking of quality defect marks: the controller 7 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 7 transmits the quality defect mark pattern to the marking device driver 5 in a timely manner according to the signal of the angle encoder 1.3, and 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; 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 the highway reconstruction and expansion, the construction personnel stand on the side of the starting line 8.1, facing the quality defect mark, 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 in the depth coding line A8.2 and the depth coding line B8.3; When the depth coding line A8.2 and the depth coding line B8.3 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-shaped marking points in the depth coding line A8.2, B is the number of dot-shaped marking points in the depth coding line B8.3, and S is the standard detection depth of the ground penetrating radar 2; When the depth coding line A8.2 and the depth coding line B8.3 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 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; 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.

[0025] See the instruction manual Fig.12 : When identifying the quality defect mark, the repairer stands on the lower side of the starting line 8.1 and faces the quality defect mark; first, based on the defect type line 8.4 being a straight line, it is determined that the quality defect type at this location is a crack, and its length is the length of the straight line; its depth D is calculated according to formula (1): D=(0.1*A+0.01*B)*S=(0.1*2+0.01*6)*5000=0.26*5000=1300mm.

[0026] See the instruction manual Fig.13 : The repairer stands at the lower side of the starting line 8.1, facing the quality defect mark; according to the defect type line 8.4 being a square, it is judged that the quality defect type at this location is a void, and its area is the area of ​​the square; its depth D is calculated according to formula (1): D=(0.1*A+0.01*B)*S=(0.1*3+0.01*7)*5000=0.37*5000=1850mm.

[0027] See the instruction manual Fig.14 : The repairer stands at the lower side of the starting line 8.1, facing the quality defect mark; according to the defect type line 8.4 being a circle, it is judged that the quality defect type at this location is not dense, and its area is the area of ​​the circle; its depth D is calculated according to formula (1): D=(0.1*A+0.01*B)*S=(0.1*4+0.01*3)*5000=0.37*5000=2150mm.

[0028] See the instruction manual Fig.15: The repairer stands at the lower side of the starting line 8.1, facing the quality defect mark; according to the defect type line 8.4 being an ellipse, it is judged that the quality defect type at this location is not dense, and its area is the area of ​​the ellipse; its depth D is calculated according to formula (1): D=(0.1*A+0.01*B)*S=(0.1*5+0.01*3)*5000=0.53*5000=2650mm.

[0029] See the instruction manual Fig.16 In this embodiment, the depth coding line A8.2 and the depth coding line B8.3 are both two sections; the repairer stands at the lower side of the starting line 8.1, facing the quality defect mark; according to the defect type line 8.4 being an ellipse, it is judged that the quality defect type at this location is not dense, and its area is the area of ​​the ellipse; its depth D is calculated according to formula (2): D=(0.1*A1+0.01*A2+0.001*B1+0.0001*B2)*S = (0.1*3+0.01*3+0.001*3+0.0001*6)*5000=0.3336*5000=1668mm.

[0030] After the construction and repair personnel determine the location, type and depth information of the quality defects at the junction of the new and old roadbeds of the highway reconstruction and expansion based on the quality defect signs on the ground, they can take corresponding repair measures to repair the quality defects at the junction of the new and old roadbeds of the highway reconstruction and expansion.

[0031] During the inspection and repair process of quality defects at the junction of the old and new roadbeds in the above-mentioned highway reconstruction and expansion, the two can be implemented simultaneously. There is no need for the inspection personnel and the defect repair personnel to transmit defect information through paper defect inspection result tables or verbally. This solves the problem of low efficiency in the handover of defect information and the problem of easy errors in the handover of defect information, thereby greatly improving the construction efficiency and quality of highway reconstruction and expansion.

[0032] Parts of the present invention not described in detail 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: The invention also comprises 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 detection 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 detection 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 position.

2. A ground penetrating radar detection device according to claim 1, characterized in that: 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 onto the road surface through the marking liquid spraying device (3.2) to form a quality defect mark.

3. A ground penetrating radar detection device according to claim 2, 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).

4. A ground penetrating radar detection device according to claim 2, characterized in that: A plurality of damping partitions (3.1.3) are arranged vertically and horizontally inside the marking liquid storage box (3.1).

5. A ground penetrating radar detection device according to claim 2, characterized in that: 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.

6. A ground penetrating radar detection device according to claim 5, 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.

7. A ground penetrating radar detection device according to claim 6, 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.

8. A method for synchronously identifying detection defects of a ground penetrating radar detection device according to claim 7, characterized in that: The quality defect mark is formed by a plurality of dot-shaped marking points sprayed by a marking device (3); the quality defect mark comprises 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 portion 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.

9. A method for synchronously identifying detection defects of a ground penetrating radar detection device according to claim 8, characterized in that: The depth coding line A (8.2) and the depth coding line B (8.3) are one segment or two segments; when the depth coding line A (8.2) and the depth coding line B (8.3) are two segments, a blank position is provided between two adjacent segments, 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).

10. A method for synchronously identifying detection defects of a ground penetrating radar detection device according to claim 9, 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 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 (7) transmits the quality defect mark pattern to the marking device driver (5) in a timely manner according to the signal of the angle encoder (1.3), and 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; 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.

Images