High fill roadbed settlement detection equipment and working method thereof

Abstract

The present invention relates to the field of roadbed construction equipment and discloses a high-fill roadbed settlement detection device and its working method. The device comprises two vertical plates arranged side by side, a top plate provided on top of the vertical plates, the vertical plates and the top plate forming a U-shaped support frame, a hydraulic push rod provided in the middle of the top plate, penetrating the top plate and arranged downward, a heavy-duty pressure sensor provided at the bottom of the piston rod of the hydraulic push rod, a connecting block provided on the lower surface of the heavy-duty pressure sensor, and a settlement detection assembly detachably provided on the lower surface of the connecting block; a rack provided on each of the back surfaces of the vertical plates, and a positioning assembly provided through the rack for fixing the U-shaped support frame; and a compaction assembly for replacing the settlement detection assembly and supplementing the compaction of the under-compacted roadbed. The present invention saves on the investment of personnel and instruments such as professional surveyors, levels, and total stations through mechanized operations, and also saves on round-trip monitoring time. At the same time, the device of the present invention has high detection accuracy and is not easily displaced or deformed, which can better ensure the accuracy of the detection results.

Description

Technical Field

[0001] The present invention relates to the field of roadbed construction equipment, and in particular to a high fill roadbed settlement detection device and a working method thereof. Background Art

[0002] As economic development continues to increase the demand for transportation, the scale of railway and highway construction will continue to grow, placing higher demands on the quality of roadbed compaction for railways and highways. Insufficient roadbed compaction is one of the main causes of localized subsidence or premature failure. In existing railway and highway construction, various early failures caused by insufficient roadbed compaction are common. Practice has proven that in railway and highway construction, effectively compacting the roadbed to a higher standard is the most cost-effective technical measure to increase the bearing capacity of the roadbed and maintain the overall stability of railways and highways. Therefore, how to determine whether the roadbed has been effectively compacted is an urgent problem that technicians in this field want to solve.

[0003] Currently, the commonly used methods to determine whether the roadbed is effectively compacted include compaction testing and settlement monitoring.

[0004] The main methods for testing compaction are the sand filling method and the knife ring method. However, these methods are only suitable for testing the compaction within the top 30 cm of the compacted soil. Testing the compaction effect in deeper roadbeds requires excavation. To test the compaction of deeper soil, the excavation area must be relatively large. This significantly damages the compacted soil, not only destroying the already compacted soil but also incurring high costs.

[0005] Settlement monitoring is also a common method, crucial for controlling construction speed and predicting post-construction settlement of roadbeds. Monitoring data can be used to monitor the stability of the foundation during fill construction, thereby controlling the fill rate; it can also be used to infer the settlement and deformation patterns of the foundation and control post-construction settlement of the embankment.

[0006] However, in the prior art, the equipment for effective compaction and the equipment for supplementary compaction are usually two different sets of equipment. At the same time, after the existing compaction test is completed, if the roadbed does not meet the standards needs to be supplemented with compaction, it is necessary to organize the compaction machinery to enter the site again. The process is relatively cumbersome, which increases the workload of the inspection personnel and greatly prolongs the inspection cycle. At the same time, it also brings inconvenience to the roadbed inspection of different sections. Therefore, there is a need for a detection and supplementary compaction equipment that can monitor the roadbed settlement and quickly supplement the compaction of the under-compacted roadbed. Summary of the Invention

[0007] The technical problem to be solved by the present invention is to provide a high fill roadbed settlement detection device and a working method thereof. In the existing technology, since the equipment for effective compaction and the equipment for supplementary compaction in the existing technology are usually two different sets of equipment, and after the existing compaction degree test is completed, the substandard roadbed needs to be supplemented with compaction, it is necessary to organize the compaction machinery to enter the site again. The process is relatively cumbersome, which increases the workload of the inspection personnel and greatly prolongs the inspection cycle.

[0008] To solve the above technical problems, the technical solution adopted by the present invention is as follows: a high fill roadbed settlement detection device, comprising two vertical plates arranged side by side, a top plate provided on top of the vertical plates, the vertical plates and the top plate forming a U-shaped bracket frame, a hydraulic push rod provided in the middle of the top plate, penetrating the top plate and arranged downward, a heavy-load pressure sensor provided at the bottom of the piston rod of the hydraulic push rod, a connecting block provided on the lower surface of the heavy-load pressure sensor, and a settlement detection component detachably provided on the lower surface of the connecting block;

[0009] The two guide wheels have a first end fixed to the top of the steering column, and the second end is fixed to the steering column, and the other end is fixed to the steering column, and the other end is fixed to the steering column, and the other end is fixed to the steering column, and the other end is fixed to the steering column, and the other end is fixed to the steering column, and the

[0010] A rack is provided on each back surface of the vertical plate, and a positioning assembly for fixing the U-shaped bracket frame is provided through the rack;

[0011] It also includes a compaction component for replacing the settlement detection component and performing additional compaction on the under-compacted roadbed.

[0012] In particular, the positioning assembly includes a sliding box that can be slid up and down on one side of the rack, and the sliding box is fixedly connected to the movable block; a horizontal drive motor is provided in the sliding box, and a horizontal worm is provided on the output shaft of the drive motor; it also includes a double-layer gear disk rotatably provided on the inner wall of the box, one layer of the double-layer gear disk is engaged with the horizontal worm, and the other layer is engaged with the rack; a first downward plug rod is provided on the bottom surface of the outer end of the sliding box, and a second downward plug rod is provided on the bottom surface of the inner end; a horizontal bottom plate is also provided at the bottom of the vertical plate, and the second plug rod passes through the horizontal bottom plate and is inserted into the ground.

[0013] In particular, the positioning assembly also includes a second rod arranged on the lower surface of the movable block close to the vertical plate, and a first rod arranged on the lower surface of the movable block away from the vertical plate. There is a length difference between the first rod and the second rod, and the sliding box is fixedly connected to the movable block.

[0014] In particular, the compacting assembly includes two vertical clamping plates, the lower surface of the clamping plate is provided with a second clamping block inserted into the clamping groove, and the facing surfaces of the clamping plates are each provided with a third vertical groove, and a vertical second limit rod is provided in the third vertical groove, and a return spring fixed to the top of the third vertical groove is sleeved on the top of the second limit rod; it also includes a horizontally arranged second mounting plate, and the left and right ends of the second mounting plate are horizontally extended outward with plug connectors; the plug connector can be slidably sleeved on the second limit rod and fixedly connected to the lower end of the return spring; a number of vertical connecting plates are also provided on the lower surface of the second mounting plate, and a horizontal third mounting plate is fixed to the bottom of the vertical connecting plate.

[0015] A working method of a high fill roadbed settlement detection device comprises the following steps:

[0016] Step S1: Move the device to the roadbed section to be tested, drive the positioning component to fix the U-shaped bracket frame, assemble the detection equipment and the settlement detection component, and then perform roadbed settlement detection;

[0017] Step S2: remove the settlement detection component and replace it with a compaction component, and perform secondary compaction on the under-compacted road section whose compaction degree does not meet the standard during the roadbed settlement detection process.

[0018] Furthermore, in step S1, the driving motor is started to drive the sliding box to move downward, and the U-shaped bracket frame presses the first plug rod and the second plug rod downward into the soil layer below under the action of its own weight, thereby fixing the U-shaped bracket frame in the work station; then one end of the first mounting plate is inserted into the first vertical groove of the movable rod, and the other end is inserted into the movable block clamping groove through the first clamping block below to complete the assembly of the settlement detection component; the movable rod moves downward under the action of the gravity of the counterweight block and stops moving downward after it is close to the road surface; at this time, the inclination angle of the connecting rod is α, and the reading of the sliding block on the first mounting plate is recorded as A; the inclination angle of the inclined rod after settlement is β, and the reading of the sliding block on the first mounting plate is recorded as B, then the settlement value H is calculated as follows:

[0019] H=B·cosβ-A·cosα.

[0020] Furthermore, in step S2, the compaction component is installed after the settlement detection component is removed. The compaction component is installed by inserting the second clamping block under the clamping plate into the clamping groove of the movable block after the clamping block is removed and clamping it; then, the piston rod of the hydraulic push rod is extended downward until it is pressed against the second mounting plate, and the piston rod of the hydraulic push rod is fixedly connected to the upper surface of the second mounting plate. Under the action of the hydraulic push rod, the second mounting plate drives the third mounting plate below to supplement the compaction of the under-pressure road surface.

[0021] Compared with the prior art, the present invention has the following advantages and beneficial effects: the present invention saves the investment in personnel and instruments such as professional surveyors, levels, and total stations through mechanized operations, saves round-trip monitoring time, and promotes the development of settlement monitoring work towards mechanization and automation. At the same time, the device of the present invention has high detection accuracy, and the main material is made of steel, which is not easy to shift and deform, and can also better ensure the accuracy of the detection results. By being fixedly installed at the monitoring position once, single and cumulative settlement and deformation observations can be achieved, meeting the requirements of long-term monitoring of high-fill roadbeds, and realizing continuous settlement observations, solving the problem of frequent leveling work, reducing labor intensity, and errors caused by differences in the professional level of measurement and monitoring personnel, thereby improving data accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0023] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention.

[0024] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle.

[0025] Figure 4 for Figure 2 Enlarged structural diagram at point B in the middle.

[0026] Figure 5Schematic diagram of the compaction component structure.

[0027] The meanings of the numbers in the figure are as follows: vertical plate 11; second vertical groove 111; rack 112; top plate 12; horizontal bottom plate 13; hydraulic push rod 3; heavy-duty pressure sensor 31; connecting block 32; fixed block 41; movable rod 42; first vertical groove 421; counterweight plate 43; first mounting plate 44; connecting slider 441; first clamping block 442; first horizontal groove 443; first limiting rod —444; sliding block—445; connecting rod—446; movable block—45; snap-in groove—451; sliding box—51; driving motor—52; horizontal worm—53; double-layer gear disc—54; first plug rod—55; second plug rod—56; snap-in plate—6; second snap-in block—61; third vertical groove—62; second limiting rod—63; return spring—64; second mounting plate—65; plug connector—66; third mounting plate—68. DETAILED DESCRIPTION

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention, so as to have a further understanding of the concept of the present invention, the technical problems solved, the technical features constituting the technical solutions and the technical effects brought about.

[0029] like Figures 1 to 5 As shown, a high fill roadbed settlement detection device includes two vertical plates 11 arranged side by side, with a top plate 12 provided on top of the vertical plates 11. The vertical plates 11 and the top plate 12 form a U-shaped bracket frame. A hydraulic push rod 3 is provided in the middle of the top plate 12, passing through the top plate 12 and arranged downward. A heavy-load pressure sensor 31 is provided at the bottom of the piston rod of the hydraulic push rod 3. A connecting block 32 is provided on the lower surface of the heavy-load pressure sensor 31. The settlement detection component is detachably provided on the lower surface of the connecting block 32.

[0030] The settlement detection assembly includes a detachable fixed block 41 arranged below the connecting block 32, and a movable rod 42 protruding downward is provided on the lower surface of the fixed block 41, and a counterweight plate 43 is provided at the bottom end of the movable rod 42; it also includes two horizontal first mounting plates 44 with scales, one end of the first mounting plate 44 is provided with a connecting slider 441, and the lower surface of the other end is provided with a first clamping block 442, and a first vertical groove 421 is provided on each side of the movable rod 42, and the connecting slider 441 of the first mounting plate 44 is inserted into the first vertical groove 421 and slides up and down, and the two vertical plates 11 are connected. Each of the facing surfaces is provided with a second vertical groove 111 recessed into the plate, and a movable block 45 that can slide up and down is provided in the second vertical groove 111. The movable block 45 is provided with an upwardly opening clamping groove 451, and the first clamping block 442 is clamped in the clamping groove 451; the first mounting plate 44 is further provided with a first horizontal groove 443, and a horizontal first limiting rod 444 is provided in the first horizontal groove 443. A sliding block 445 that can slide horizontally is sleeved on the first limiting rod 444, and one end of a connecting rod 446 is hinged to the sliding block 445, and the other end is hinged to the fixed block 41;

[0031] A rack 112 is provided on each back surface of the vertical plate 11, and a positioning assembly for fixing the U-shaped bracket frame is provided through the rack 112;

[0032] It also includes a compaction component for replacing the settlement detection component and performing additional compaction on the under-compacted roadbed.

[0033] During the construction process of the present invention, the overall core principle is to move the device to the roadbed section to be detected and then use the positioning assembly to fix the device, and install the first mounting plate 44 on the movable block 45 through the first clamping block 442, and the sliding blocks 445 on the left and right sides of the first mounting plate 44 are respectively hinged to the two side ends of the connecting block 32 through the connecting rod 446, and sufficient counterweights are placed on the counterweight plate 43 so that the counterweight plate 43 is in contact with the ground to complete the assembly of the settlement detection part of the device. During actual use, when the roadbed settles, the counterweight plate 43 is used to drive the movable rod 42 to move down with the ground. At the same time, since the height of the first mounting plate 44 remains unchanged, the distance between the sliding block 445 and the first mounting plate 44 is shortened, thereby pushing the sliding block 445 to disperse to the left and right sides on the first mounting plate 44, thereby effectively characterizing the roadbed settlement. In addition, after the settlement detection is completed, the counterweight plate 43 is pushed down further by using the hydraulic push rod 3, and the pressure information is monitored by using the heavy-duty pressure sensor, so as to understand the actual settlement situation under the roadbed.

[0034] As a preferred embodiment, the positioning assembly includes a sliding box 51 that can be slidably arranged on one side of the rack 112, and the sliding box 51 is fixedly connected to the movable block 45; a horizontal drive motor 52 is provided in the sliding box 51, and a horizontal worm 53 is provided on the output shaft of the drive motor 52; it also includes a double-layer gear disk 54 rotatably arranged on the inner wall of the box, one layer of the double-layer gear disk 54 is engaged with the horizontal worm 53, and the other layer is engaged with the rack 112; a downward first plug rod 55 is provided on the bottom surface of the outer end of the sliding box 51, and a downward second plug rod 56 is provided on the bottom surface of the inner end; a horizontal bottom plate 13 is also provided at the bottom of the vertical plate 11, and the second plug rod 56 passes through the horizontal bottom plate 13 and is inserted into the ground.

[0035] In this embodiment, a specific structure of a positioning assembly is provided for implementation, wherein a sliding box 51 can be slidably arranged up and down in a sliding track on one side of the rack 112, and a driving motor 52 in the sliding box 51 drives a horizontal worm 53 engaged with one layer of the double-layer gear disc 54 to rotate, thereby driving the double-layer gear disc 54 to rotate, and the other layer of the double-layer gear disc 54 is engaged with the rack 112, thereby driving the sliding box 51 to slide on the rack 112, and driving the movable block 45 to slide together, thereby inserting the first insertion rod 55 and the second insertion rod 56 below into the ground soil layer, thereby fixing the position of the device.

[0036] As a preferred embodiment, the positioning assembly also includes a second rod 56 arranged on the lower surface of the movable block 45 close to the vertical plate 11, and a first rod 55 arranged on the lower surface of the movable block 45 away from the vertical plate 11. There is a length difference between the first rod 55 and the second rod 56, and the sliding box 51 is fixedly connected to the movable block 45.

[0037] In this embodiment, by fixedly connecting the sliding box 51 and the movable block 45, when the sliding box 51 moves up and down, the movable block 45 moves therewith, thereby inserting another set of first insertion rods 55 and second insertion rods 56 on the lower surface of the movable block 45 into the soil layer, further fixing the device and effectively improving the stability of the device.

[0038] As a preferred embodiment, the compacting assembly includes two vertical clamping plates 6, the lower surface of the clamping plate 6 is provided with a second clamping block 61 inserted into the clamping groove 451, and the facing surfaces of the clamping plate 6 are each provided with a third vertical groove 62, and a vertical second limiting rod 63 is provided in the third vertical groove 62, and a return spring 64 fixed to the top of the third vertical groove 62 is sleeved on the top of the second limiting rod 63; it also includes a horizontally arranged second mounting plate 65, and the left and right ends of the second mounting plate 65 are horizontally extended outward with plug connectors 66; the plug connector 66 can be slidably sleeved on the second limiting rod 63 and fixedly connected to the lower end of the return spring 64; a number of vertical connecting plates are also provided on the lower surface of the second mounting plate 65, and a horizontal third mounting plate 68 is fixed to the bottom of the vertical connecting plate.

[0039] In this embodiment, a specific structure of a compaction assembly is provided. After monitoring the roadbed settlement, auxiliary supplementary compaction is performed on under-compacted road sections. The specific process is as follows: after removing the settlement detection assembly, the second clamping block 61 is inserted into the clamping groove of the movable block 45 and clamped. The second mounting plate 65 is pushed downward by the hydraulic push rod 3, and the road surface is auxiliary compacted through the third mounting plate 68 below the second mounting plate 65. During the downward push, the return spring 64 is stretched. When the hydraulic push rod 3 contracts, the contraction of the return spring 64 drives the plug connectors 66 at both ends to move upward and reset, thereby driving the second mounting plate 65 to reset. This can facilitate the reset of the device after use. Repeating the above process can also further enhance the compaction effect.

[0040] A working method of a high fill roadbed settlement detection device comprises the following steps:

[0041] Step S1: Move the device to the roadbed section to be tested, drive the positioning component to fix the U-shaped bracket frame, assemble the detection equipment and the settlement detection component, and then perform roadbed settlement detection;

[0042] Step S2: remove the settlement detection component and replace it with a compaction component, and perform secondary compaction on the under-compacted road section whose compaction degree does not meet the standard during the roadbed settlement detection process.

[0043] As the working method of the above-mentioned high fill roadbed settlement detection equipment, it mainly includes two steps, namely the detection step of the settlement detection component mentioned above and the auxiliary compaction step after the detection is completed. The device of the present invention organically combines these two steps separated in the existing technology through the device of the present invention, and realizes the implementation of multiple work processes with one set of equipment. Under the premise of effectively reducing the investment in manpower and detection equipment, it can well complete the established work tasks and realize continuous settlement observation, solve the frequent leveling work, reduce labor intensity, and the errors caused by the professional level differences of measurement and monitoring personnel, improve data accuracy, and at the same time, through a one-time fixed installation at the monitoring position, realize single and cumulative settlement deformation observations, meet the requirements of long-term monitoring of high fill roadbed.

[0044] As a further embodiment, in step S1, by starting the driving motor 52 to drive the sliding box 51 to move downward, the U-shaped bracket frame presses the first insertion rod 55 and the second insertion rod 56 downward and inserts them into the soil layer below under the action of its own weight, thereby fixing the U-shaped bracket frame in the work station; then one end of the first mounting plate 44 is inserted into the first vertical groove 421 of the movable rod 42, and the other end is inserted into the clamping groove 451 of the movable block 45 through the first clamping block 442 below to complete the assembly of the settlement detection group; the movable rod 42 moves downward under the gravity of the counterweight plate 43, and stops moving downward after it is close to the road surface; at this time, the inclination angle of the connecting rod 446 is α, and the reading of the sliding block 445 on the first mounting plate 44 is recorded as A; the inclination angle of the inclined rod after settlement is β, and the reading of the sliding block 445 on the first mounting plate 44 is recorded as B, then the settlement value H is calculated as follows:

[0045] H=B·cosβ-A·cosα.

[0046] In this embodiment, a specific characterization method of settlement is provided, wherein, after starting the drive motor 52 to drive the sliding box 51 to move downward, the settlement detection component is installed. When the road surface settles, the counterweight plate 43 moves downward. Since the first mounting plate 44 is fixed to the ground by the first plug rod 55 and the second plug rod 56 under the movable block 45, the height of the first mounting plate 44 will not change, and the height of the connecting block 32 will move downward together with the counterweight plate 43, causing the inclination angle of the connecting rod 446 to change. In the case of the through-groove, the downward movement caused by the settlement of the roadbed is not long. The change in the vertical direction is amplified by a small inclination angle and then fed back to the change in the horizontal direction. According to the trigonometric function formula, the settlement value H is obtained, wherein the inclination angle is measured by an angle sensor or an inclinometer. In order to ensure accuracy, the reading of the sliding block 445 can also be measured by an infrared rangefinder pre-set on the movable block 45.

[0047] As a further embodiment, in step S2, the compaction component is installed after the settlement detection component is removed. The compaction component is installed by inserting the second clamping block 61 below the clamping plate 6 into the clamping groove 451 of the movable block 45 after the clamping block is removed and clamping it; then, the piston rod of the hydraulic push rod 3 is extended downward until it is pressed against the second mounting plate 65, and the piston rod of the hydraulic push rod 3 is fixedly connected to the upper surface of the second mounting plate 65. Under the action of the hydraulic push rod 3, the second mounting plate 65 drives the third mounting plate 68 below to supplement the compaction of the under-pressure road surface.

[0048] This embodiment provides a detailed installation procedure for the compaction assembly, primarily involving inserting the second clamping block 61 below the clamping plate 6 into the clamping slot 451 on the movable block 45 to secure the second mounting plate 65. During the compaction process, the heavy-duty pressure sensor 31 ensures that the pressure output by the hydraulic push rod 3 is within the specified range for engineering compaction, resulting in more accurate compaction results.

[0049] The terms "connection" and "fixation" appearing in the description of the present invention may refer to fixed connection, processing and forming, welding, or mechanical connection. The specific meanings of the above terms in the present invention shall be understood according to the specific circumstances.

[0050] In the description of the present invention, the terms "center", "upper", "lower", "horizontal", "inner", "outer", etc., which indicate the orientation or position relationship, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation. Therefore, they should not be understood as limiting the present invention.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some or all of the technical features therein can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A high fill roadbed settlement detection device, characterized in that: The invention comprises two vertical plates (11) arranged opposite to each other, a top plate (12) being provided on the top of the vertical plates (11), and the vertical plates (11) and the top plate (12) forming a U-shaped bracket frame; a hydraulic push rod (3) penetrating the top plate (12) and arranged downward is provided in the middle of the top plate (12); a heavy-load pressure sensor (31) is provided at the bottom of the piston rod of the hydraulic push rod (3); a connecting block (32) is provided on the lower surface of the heavy-load pressure sensor (31); and a settlement detection component is detachably provided on the lower surface of the connecting block (32); The settlement detection assembly includes a detachable fixed block (41) arranged below the connecting block (32), a movable rod (42) protruding downward is provided on the lower surface of the fixed block (41), and a counterweight plate (43) is provided at the bottom end of the movable rod (42); and also includes two horizontal first mounting plates (44) with scales, a connecting slider (441) is provided at one end of the first mounting plate (44), and a first clamping block (442) is provided on the lower surface of the other end, and a first vertical groove (421) is provided on each side of the movable rod (42), and the connecting slider (441) of the first mounting plate (44) is inserted into the first vertical groove (421) and slides up and down at the same height, and the two vertical plates A second vertical groove (111) is provided on each of the facing surfaces of the first and second mounting plates, and a movable block (45) that can slide up and down is provided in the second vertical groove (111). The movable block (45) is provided with a clamping groove (451) that opens upward, and the first clamping block (442) is clamped in the clamping groove (451). A first horizontal groove (443) is also provided on the first mounting plate (44). A first horizontal limiting rod (444) is provided in the first horizontal groove (443). A sliding block (445) that can slide horizontally is sleeved on the first limiting rod (444). One end of the connecting rod (446) is hinged to the sliding block (445), and the other end is hinged to the fixed block (41). A rack (112) is provided on each back surface of the vertical plate (11), and a positioning assembly for fixing the U-shaped bracket frame is provided through the rack (112); It also includes a compaction component for replacing the settlement detection component and performing additional compaction on the under-compacted roadbed.

2. The high fill roadbed settlement detection device according to claim 1, characterized in that: The positioning assembly includes a sliding box (51) that is slidably arranged on one side of the rack (112); a horizontal driving motor (52) is provided in the sliding box (51), and a horizontal worm (53) is provided on the output shaft of the driving motor (52); and a double-layer toothed disc (54) is rotatably arranged on the inner wall of the sliding box (51), one layer of the double-layer toothed disc (54) is engaged with the horizontal worm (53), and the other layer is engaged with the rack (112); a first downward insertion rod (55) is provided on the bottom surface of the outer end of the sliding box (51), and a second downward insertion rod (56) is provided on the bottom surface of the inner end; a horizontal bottom plate (13) is further provided at the bottom of the vertical plate (11), and the second insertion rod (56) penetrates the horizontal bottom plate (13) and is inserted into the ground.

3. The high fill roadbed settlement detection device according to claim 2, characterized in that: The positioning assembly further includes a second insertion rod (56) provided on the lower surface of the movable block (45) on the side close to the vertical plate (11), and a first insertion rod (55) provided on the lower surface of the movable block (45) on the side away from the vertical plate (11). There is a length difference between the first insertion rod (55) and the second insertion rod (56), and the sliding box (51) is fixedly connected to the movable block (45).

4. The high fill roadbed settlement detection device according to claim 1, characterized in that: The compacting assembly includes two vertical clamping plates (6), the lower surface of the clamping plate (6) is provided with a second clamping block (61) inserted into the clamping groove (451), and the opposite surfaces of the clamping plate (6) are each provided with a third vertical groove (62), and a vertical second limiting rod (63) is provided in the third vertical groove (62), and the top end of the second limiting rod (63) is sleeved with a return spring (64) fixed to the top of the third vertical groove (62); it also includes a horizontally arranged second mounting plate (65), and the left and right ends of the second mounting plate (65) are horizontally extended outward with plug connectors (66); the plug connector (66) can be slidably sleeved on the second limiting rod (63) and is fixedly connected to the lower end of the return spring (64); the lower surface of the second mounting plate (65) is also provided with a plurality of vertical connecting plates, and a horizontal third mounting plate (68) is fixed to the bottom of the vertical connecting plate.

5. The working method of the high fill roadbed settlement detection equipment according to any one of claims 1 to 4, characterized in that: The steps include: Step S1: Move the device to the roadbed section to be tested, drive the positioning component to fix the U-shaped bracket frame, assemble the detection equipment and the settlement detection component, and then perform roadbed settlement detection; Step S2: remove the settlement detection component and replace it with a compaction component, and perform secondary compaction on the under-compacted road section whose compaction degree does not meet the standard during the roadbed settlement detection process.

6. The working method of the high fill roadbed settlement detection equipment according to claim 5, characterized in that: In step S1, the driving motor (52) is started to drive the sliding box (51) to move downward, and the U-shaped bracket frame presses the first insertion rod (55) and the second insertion rod (56) downward into the soil layer below under the action of its own weight, thereby fixing the U-shaped bracket frame at the work station; then one end of the first mounting plate (44) is inserted into the first vertical groove (421) of the movable rod (42), and the other end is inserted into the clamping groove (451) of the movable block (45) through the first clamping block (442) below to complete the assembly of the settlement detection group component; the movable rod (42) moves downward under the gravity of the counterweight plate (43) and stops moving downward after it is close to the road surface; at this time, the inclination angle of the connecting rod (446) is α, and the reading of the sliding block (445) on the first mounting plate (44) is recorded as A; after settlement, the inclination angle of the inclined rod is β, and the reading of the sliding block (445) on the first mounting plate (44) is recorded as B, then the settlement value H is calculated as follows: H=B·cosβ-A·cosα.

7. The working method of the high fill roadbed settlement detection equipment according to claim 5, characterized in that: In step S2, after the settlement detection assembly is removed, the compaction assembly is installed. The compaction assembly is installed by inserting the second clamping block (61) below the clamping plate (6) into the clamping groove (451) of the movable block (45) after the clamping block is removed and clamping it; then, the piston rod of the hydraulic push rod (3) is extended downward until it is pressed against the second mounting plate (65), and the piston rod of the hydraulic push rod (3) is fixedly connected to the upper surface of the second mounting plate (65). Under the action of the hydraulic push rod (3), the second mounting plate (65) drives the third mounting plate (68) below to perform additional compaction on the under-compacted road surface.

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