Rapid arrangement device for detecting compactness through transient Rayleigh wave method

Abstract

The utility model discloses a rapid layout device for detecting compactness by a transient Rayleigh wave method, which belongs to the technical field of highway subgrade nondestructive testing and comprises an assembly graduated scale, a sliding device is movably arranged on the assembly graduated scale, a detector is fixedly arranged on one side of the sliding device, and the detector is arranged on the other side of the assembly graduated scale. And the detector is driven by a sliding device to move along the length direction of the assembled graduated scale. The sliding device is arranged to move on the assembly graduated scale, accurate scales are marked on the assembly graduated scale, so that accurate measurement and positioning can be rapidly carried out when the detector is arranged, the height of the detector is adjusted by combining the height adjusting component, accurate adjustment of the detector in the horizontal direction and the vertical direction can be achieved, and the accuracy of the detector is improved. And detection of different terrains can be realized.

Description

Technical Field

[0001] The utility model belongs to the technical field of nondestructive testing of highway roadbeds, and in particular relates to a rapid deployment device for testing compaction using a transient Rayleigh wave method. Background Art

[0002] The statements in this section merely provide background information related to the present disclosure and do not necessarily constitute prior art.

[0003] As an important part of highway, high-quality roadbed is a necessary condition for long-term use of highway. Under the influence of various factors, roadbed will suffer from various deformations and diseases. Roadbed detection can detect hidden diseases such as landslides, sinkholes, karst and voids as early as possible, so as to achieve timely treatment and ensure the safety of the line. Compaction is an important indicator of roadbed construction quality, which can characterize the density of the compacted roadbed. The transient Rayleigh wave method can accurately detect the compaction of filling layers of different depths, and the operation is simple, fast and economical. The transient Rayleigh wave method has the advantages of high resolution, low interference, non-destructiveness, and deep detection depth.

[0004] The implementation of the transient Rayleigh wave method requires the deployment of detector sensors. However, the deployment of detectors is relatively cumbersome. It is necessary to ensure that the detectors are on the same horizontal line in advance, and use a tape measure to measure the preset track spacing. The detectors are inserted into the soil in sequence according to the measured spacing, and then pulled out in sequence after the detection is completed. When performing multiple section inspections, the above steps need to be repeated, and the detectors are moved as a whole. At the same time, the detectors and cables are connected through the transmission lines provided by the detectors, which can easily increase the difficulty of overall movement, resulting in the need to disconnect the transmission lines and cables during the movement. Therefore, during the entire detection process, the measurement of track spacing, the deployment and recovery of detectors will consume a lot of manpower and time. Utility Model Content

[0005] In order to solve the technical problems existing in the prior art, the utility model provides a rapid deployment device for compaction degree detection using a transient Rayleigh wave method, thereby realizing rapid deployment of detectors.

[0006] To achieve the above purpose, the utility model is implemented through the following technical solutions:

[0007] A rapid deployment device for detecting compaction using a transient Rayleigh wave method comprises an assembly scale, a sliding device is movably provided on the assembly scale, a detector is fixedly provided on one side of the sliding device, and the detector is driven by the sliding device to move along the length direction of the assembly scale.

[0008] According to a further technical solution, a first groove is formed at one end of the assembly scale, and a plug is fixedly provided at the other end.

[0009] In a further technical solution, a first groove for assembling a scale is relatively fitted with a plug for assembling a scale.

[0010] In a further technical solution, the first groove and the plug are fixed by a buckle.

[0011] In a further technical solution, the sliding device includes a sliding sleeve which is sleeved on the scale for assembly.

[0012] In a further technical solution, a fixing member is fixedly arranged on one side wall of the sliding sleeve, and the fixing member is movably inserted on the height adjusting member.

[0013] In a further technical solution, a vertical slot is formed on the side surface of the height adjusting member, and the fixing member passes through the vertical slot and moves up and down in the vertical slot.

[0014] In a further technical solution, a ring member is fixedly arranged on one side at the bottom end of the height adjusting member, and a detector is fixedly inserted in the ring member.

[0015] In a further technical solution, the detector includes a cylindrical member, a round cap screw is screwed and fixed on the top of the cylindrical member, a metal probe is fixedly connected to the bottom of the cylindrical member, and a connecting member is closely fixed on the outer periphery of the bottom end of the cylindrical member.

[0016] In a further technical solution, a cable bayonet is fixedly arranged on one side of the connecting member.

[0017] The beneficial effects of the present utility model are as follows:

[0018] The present utility model is provided with a sliding sleeve moving on the scale for assembly, and the scale for assembly is marked with precise scales, so that precise measurement and positioning can be quickly carried out when arranging the detector, and the problem that the track spacing needs to be measured again when detecting different cross-sections during the detection process can be solved.

[0019] Through the setting of the scale for assembly, the present utility model can solve the problems of time-consuming and laborious arrangement and recovery of the detector, greatly reduce the arrangement time of the detector during the detection process, and at the same time, by splicing the scale for assembly, the arrangement of 12 channels, 24 channels or any number of detectors can be realized.

[0020] The present utility model is provided with a cable bayonet on the detector, and by directly connecting with the cable, the problems that the existing detector is equipped with a transmission line, resulting in too many transmission lines during detection and making the overall movement difficult, and eliminating the time consumed by the frequent disconnection and connection of the transmission line and the cable are solved.

[0021] The present utility model is provided with a support frame and a height adjusting member. The scale for assembly is supported by the support frame to adjust the height of the scale for assembly, and the height of the detector is adjusted by the height adjusting member, so that the detection of different terrains can be realized.

[0022] In the present utility model, the geophone is fixed on the height adjustment member through a circular ring member and then fixed on the sliding sleeve, so that multiple geophones can be moved simultaneously without disassembling the geophone. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model.

[0024] Figure 1 It is a schematic diagram of the overall structure of the rapid layout device according to the embodiment of the present utility model;

[0025] Figure 2 It is a schematic diagram of the inside of the assembly scale and the buckle of the rapid layout device according to the embodiment of the present utility model;

[0026] Figure 3 It is a schematic diagram of the sliding device and the geophone combination of the rapid layout device according to the embodiment of the present utility model;

[0027] Figure 4 It is a schematic diagram of the geophone of the rapid layout device according to the embodiment of the present utility model.

[0028] Wherein, 1 - assembly scale, 101 - first groove, 102 - first through hole, 103 - plug, 104 - second through hole, 2 - sliding device, 3 - support frame, 4 - geophone, 5 - cable, 6 - spring, 7 - round cap, 8 - sliding sleeve, 801 - fixing member, 9 - height adjustment member, 901 - vertical slot, 10 - circular ring member, 11 - cable buckle, 12 - cylindrical member, 13 - round cap screw, 14 - metal probe, 16 - connecting member. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The following further describes the present utility model in conjunction with the drawings and specific embodiments.

[0030] As Figure 1 shown, the embodiment of the present utility model provides a rapid layout device for detecting the compaction degree by the transient Rayleigh wave method, including an assembly scale 1. A sliding device 2 is movably arranged on the assembly scale 1, and a geophone 4 is fixedly arranged on one side of the sliding device 2. The geophone 4 is driven by the sliding device 2 to horizontally move on one side of the assembly scale 1.

[0031] In this embodiment, as Figure 2As shown in the figure, a first groove 101 is provided at one end of the assembly scale 1. A plurality of first through holes 102 are respectively provided on the two side walls of the first groove 101. A plug 103 is fixedly provided at the other end of the assembly scale 1. A plurality of second through holes 104 are provided on the plug 103. When a plurality of assembly scales 1 are assembled, the assembly scales 1 are spliced in sequence. The first groove 101 of one assembly scale 1 is relatively fitted with the plug 103 of another assembly scale 1. After the plug 103 is fitted into the first groove 101, the positions of the first through holes 102 and the second through holes 104 are opposite. After the buckle passes through the first through hole 102 and the second through hole 104, it is fixed, realizing the fixation of the plug 103 and the first groove 101, and further realizing the splicing and fixation of the assembly scale and another assembly scale.

[0032] When a plurality of assembly scales are spliced, the first groove 101 and the plug 103 are fixed by a buckle. The buckle is a combined structure, including a spring 6 and round caps 7 screwed at both ends of the spring 6. After the spring 6 passes through the opposite first through hole 102 and the second through hole 104, it is screwed and fixed by the round caps 7 on the outer sides of both sides of the first groove 101, realizing the fixation of the first groove 101 and the plug 103.

[0033] In some embodiments, the first groove 101 is formed by inward depression from the width side surface of one end of the assembly scale 1. A plug 103 is fixedly provided on the width side surface of the other end. The plug 103 is adapted to the first groove 101, and they are adapted to each other in shape and size, enabling their fitting. Both the plug 1 and the first groove are rectangular, and can be flexibly set according to specific implementation situations, and are not specifically limited in this embodiment.

[0034] In some embodiments, two first through holes 102 are respectively provided on the two side walls of the first groove 101, and are arranged vertically opposite to each other. Two second through holes 104 are provided on the side wall of the plug 103, and are arranged vertically opposite to each other; the positions of the first through holes 102 and the second through holes 104 correspond to each other and can be opposite after the first groove 101 and the plug 103 are fitted. The number of the first through holes 102 and the second through holes 104 is the same, and they correspond to each other one by one, and are both circular through holes, which can be flexibly set according to specific implementation situations and are not specifically limited in this embodiment.

[0035] As Figure 1 As shown in the figure, a plurality of support frames 3 are fixedly provided at the bottom of the assembly scale 1, providing stable support for the assembly scale and reducing measurement errors caused by the shaking or tilting of the scale. In some embodiments, the support frames 3 are fixedly provided at the bottom of the assembly scale at a certain distance from both ends, and the assembly scale is supported by the support frames on both sides.

[0036] Through the above technical solution, precise scales are marked on the assembly scale ruler, enabling quick and accurate measurement and positioning during the deployment of geophones; the first groove and plug are provided on the assembly scale ruler to allow multiple assembly scale rulers to be quickly and easily spliced together and fixed through snap fasteners to form a longer deployment device, which can be flexibly adjusted according to the test area to meet different test requirements.

[0037] In this embodiment, as Figure 3 shown, the sliding device includes a sliding sleeve 8. A fixing member 801 is fixedly provided on one side wall of the sliding sleeve 8. The fixing member 801 is movably embedded on a height adjusting member 9. A circular ring member 10 is fixedly provided on one side of the bottom end of the height adjusting member 9. A geophone 4 is fixedly inserted through the circular ring member 10.

[0038] The sliding sleeve 8 is a hollow rectangular kit, sleeved on the assembly scale ruler 1 and sliding along the length direction of the assembly scale ruler 1, thereby ensuring that the geophone 4 can perform precise linear movement along the assembly scale ruler 1 to meet the requirements of different test positions; the sliding sleeve 8 is adapted to the assembly scale ruler 1 to achieve a suitable mating connection between the two. A fixing member 801 is fixedly provided at the middle position of one side surface of the sliding sleeve 8. A vertical slot 901 is formed on the side surface of the height adjusting member 9 facing the fixing member 801. The fixing member 801 passes through the vertical slot 901 and moves up and down in the vertical slot 901, realizing the stable connection between the sliding sleeve 8 and the height adjusting member 9 and also realizing the height adjustment of the geophone in the vertical direction. The position of the fixing member 801 in the vertical slot 901 determines the height of the geophone in the vertical direction, thereby realizing the adjustment of the geophone height.

[0039] In some embodiments, the vertical slot 901 is a rectangular slot, and the fixing member 801 is a cylindrical structure.

[0040] A circular ring member 10 is fixedly provided on the side surface of the bottom end of the height adjusting member 9 away from the sliding sleeve 8. A geophone 4 is fixedly inserted through the circular ring member 10. The circular ring member 10 provides a stable fixing point for the geophone 4, ensuring that the geophone can maintain a stable position during the test and will not shift or fall off due to external force or vibration, which helps to ensure the accuracy and reliability of the test data.

[0041] Through the above technical solution, the geophone 4 is fixed within the circular ring member 10, and the circular ring member 10 is fixed on the height adjustment member 9. The height of the geophone 4 can be changed by adjusting the height adjustment member 9, enabling the geophone 4 to adapt to the testing requirements at different depths or heights, thereby improving the flexibility and adaptability of the testing. Furthermore, in combination with the movement of the sliding sleeve 8 on the assembly scale, precise adjustment of the geophone in both the horizontal and vertical directions can be achieved, facilitating the staff to select a suitable testing position according to specific testing conditions and realizing the rapid and simple deployment of the geophone.

[0042] In this embodiment, as Figure 4 shown, the geophone 4 includes a cylindrical member 12. A round head screw 13 is screwed and fixed to the top of the cylindrical member 12. A metal probe 14 is fixedly connected to the bottom of the cylindrical member 12. A connecting member 16 is closely fixed to the outer periphery at the bottom end of the cylindrical member 12. A cable bayonet 11 is fixedly provided on the side of the connecting member 16 away from the assembly scale 1 for connecting with the cable 5. The cable 5 is wrapped with rubber, and there is an exposed metal part at every fixed distance, which is connected to the cable bayonet 11 of the geophone to realize the connection between the geophone and the cable.

[0043] In some embodiments, the metal probe 14 is of a conical structure.

[0044] Through the above technical solution, the cylindrical member 12 serves as the main body structure of the geophone, providing a stable support platform for other components. Its top is screwed and fixed to the round head screw 13, facilitating the installation and fixation of the geophone. Specifically, after the cylindrical member 12 is inserted into the circular ring member 10, the round head screw 13 at the top is tightened to fix the geophone to the circular ring member 10 and prevent the geophone 4 from falling off. At the same time, the round head screw 13 also plays a certain sealing role to prevent impurities such as dust and moisture from entering the interior of the geophone and damaging the internal electronic components. The cable bayonet 11 facilitates the insertion, removal, and fixation of the cable, enabling rapid connection with the cable. The geophone 4 is connected to the cable through the cable bayonet 11, and the signals collected by the geophone are transmitted to the data processing device for processing and analysis.

[0045] Detailed description of the working principle:

[0046] Put a sliding sleeve 2 on an assembly scale 1, and splice multiple assembly scales 1 in sequence until the length of the assembly scale meets the sum of the preset geophone trace intervals, then stop increasing the number of assembly scales. Put the circular ring member 10 of the height adjustment member 9 on the cylindrical member 12 above the geophone and tighten the round head screw 13 to prevent the geophone 4 from falling off.

[0047] Before starting the transient Rayleigh wave detection, insert the support frame 3 into the ground to support the assembled assembly scale 1. After the assembly scale 1 is placed on the support frame 3, adjust the height of the geophone 4 through the height adjustment member 9 so that the metal probe 14 of the geophone 4 is in close contact with the ground. Hammer the cylindrical part 12 above each geophone 4 to hammer the metal probe 14 of the geophone 4 into the ground. Connect the bare metal parts of the cable 5 to the cable bayonet 11 of the geophone 4 in sequence. After completing the above steps, start the Rayleigh wave non-destructive detection of the cross-section. After finishing the detection of one cross-section, pull out the geophone 4 in sequence, lift the assembled assembly scale 1, move it to the next cross-section detection location, and repeat the above steps until all the preset cross-sections are detected. After completion, pull out the geophone 4 and press the buckle of the assembly scale to complete the disassembly of the assembly scale.

[0048] Although the specific implementation manners of the present invention are described above in conjunction with the accompanying drawings, it is not a limitation to the protection scope of the present invention. Those skilled in the art should understand that based on the technical solution of the present invention, various modifications or deformations that can be made without creative efforts by those skilled in the art are still within the protection scope of the present invention.

Claims

1. A rapid deployment device for detecting compaction using the transient Rayleigh wave method, characterized in that: The utility model comprises an assembly scale, on which a sliding device is movably provided, a detector is fixedly provided on one side of the sliding device, and the detector is driven by the sliding device to move along the length direction of the assembly scale.

2. A rapid deployment device for detecting compaction using transient Rayleigh wave method as claimed in claim 1, characterized in that: A first groove is provided at one end of the assembly scale, and a plug is fixedly provided at the other end.

3. A rapid deployment device for detecting compaction using transient Rayleigh wave method as claimed in claim 2, characterized in that: The first groove of one assembly scale is relatively engaged with the plug of another assembly scale.

4. A rapid deployment device for detecting compaction using transient Rayleigh wave method as claimed in claim 3, characterized in that: The first groove and the plug are fixed by a buckle.

5. A rapid deployment device for detecting compaction using transient Rayleigh wave method as claimed in claim 1, characterized in that: The sliding device comprises a sliding sleeve, and the sliding sleeve is sleeved on the assembly scale.

6. A rapid deployment device for detecting compaction using transient Rayleigh wave method as claimed in claim 5, characterized in that: A fixing piece is fixedly arranged on one side wall of the sliding sleeve, and the fixing piece is movably embedded in the height adjusting component.

7. A rapid deployment device for detecting compaction using transient Rayleigh wave method as claimed in claim 6, characterized in that: A vertical slot is formed on the side of the height adjustment component, and the fixing piece passes through the vertical slot and moves up and down in the vertical slot.

8. A rapid deployment device for detecting compaction using transient Rayleigh wave method as claimed in claim 6, characterized in that: A circular ring component is fixedly provided on one side of the bottom end of the height adjustment component, and a detector is inserted and fixed in the circular ring component.

9. A rapid deployment device for detecting compaction using transient Rayleigh wave method as claimed in claim 1, characterized in that: The detector comprises a cylindrical member, a round cap screw is threadedly fixed on the top of the cylindrical member, a metal probe is fixedly connected to the bottom of the cylindrical member, and a connecting member is tightly fixed on the outer periphery of the bottom end of the cylindrical member.

10. A rapid deployment device for detecting compaction using transient Rayleigh wave method as claimed in claim 9, characterized in that: A cable bayonet is fixedly provided on one side of the connecting piece.

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