A road embankment dynamic monitoring system for road construction

Abstract

The application relates to the field of road construction, and discloses an embankment dynamic monitoring system for road construction, which comprises a road basic body and a monitoring device, the monitoring device comprises support cylinders vertically arranged on the two sides of the road basic body and detection rods connected with adjacent support cylinders, the support cylinder comprises a plurality of sleeves which are sequentially spliced, the sleeve is provided with a through hole through which the detection rod passes, a plurality of detection plates which are radially distributed are hinged to the outer wall of the sleeve, a row of connecting holes are vertically processed at the end of the detection plate away from the sleeve, a steel cable is connected between the detection plates located on the same working plane, and a signal acquisition device is sleeved in the middle of the support cylinder. The monitoring device in the road basic body can conveniently monitor the embankment construction process and the settlement after use, the detection rod and the detection plate can realize all-around monitoring of the embankment, and reference data is provided for embankment construction.

Description

Technical Field

[0001] This invention relates to the field of road construction, and in particular to a dynamic monitoring system for road embankments used in road construction. Background Technology

[0002] An embankment is a fill roadbed whose top surface is higher than the original ground level. It is a common road cross-section form in transportation engineering road construction. During construction, an embankment is a road structure with a certain density, built on natural ground using soil or stone fill. The selection of fill material and the control of its density are crucial in roadbed design and construction. Therefore, embankment monitoring is particularly important. Monitoring embankments can not only detect settlement early but also reduce maintenance costs and ensure the smooth construction of embankments and the normal passage of vehicles. Current embankment monitoring methods mainly rely on sensors during construction. However, this method often only detects significant settlement after it has already occurred, resulting in poor sensitivity. Therefore, a dynamic monitoring system capable of real-time monitoring of embankment changes is needed. Summary of the Invention

[0003] The purpose of this invention is to provide a dynamic monitoring system for road embankments used in road construction. This monitoring system is pre-embedded in the embankment and can monitor the real-time status of the embankment, thereby promptly reflecting the settlement status of the embankment, providing reference data for embankment maintenance, and thus reducing the maintenance cost of the embankment.

[0004] The objective of this invention is achieved through the following technical solution:

[0005] A dynamic monitoring system for road embankments used in road construction includes a roadbed and a monitoring device installed within the roadbed. The monitoring device includes support cylinders vertically installed on both sides of the roadbed and detection rods connecting adjacent support cylinders. Each support cylinder includes multiple sleeves sequentially spliced ​​together. Each sleeve has through holes for the detection rods to pass through. Several radially distributed detection plates are hinged to the outer wall of each sleeve. The ends of the detection plates extend into the sleeves. A row of connecting holes is vertically machined at the end of each detection plate away from the sleeve. Steel cables are connected between the detection plates located on the same working plane. A signal acquisition device is installed in the middle of the support cylinder. A support base for the signal acquisition device is provided inside the sleeve. A quick-connect plug is provided on the signal acquisition device outside the support base.

[0006] The probe rod includes a connecting seat, a hinge ball, and a sleeve. A concave lens is installed in the middle of the connecting seat, and hinge balls are installed on the connecting seats on both sides of the concave lens. The ends of the hinge balls are machined with light-transmitting holes. Support springs are fitted on the outside of the connecting seat and the hinge balls to make the light-transmitting holes coincide with the center line of the concave lens. One end of the sleeve is connected to the hinge ball, and the other end is connected to the support cylinder or an adjacent hinge ball. A light tube is installed inside the sleeve.

[0007] A concrete trough for placing the probe is machined on the roadbed outside the probe. The concrete trough is filled with dry sand with a mesh size of 20 to 70. A rubber pad is laid on top of the concrete trough. The probe is horizontally installed on the upper part of the concrete trough. The projections of the concrete troughs at different heights are staggered.

[0008] The detection plate is provided with a support frame on the outside, and the connection hole is located on the support frame. The surface of the detection plate is made of flexible material. Multiple rows of pull wires are horizontally installed in the middle of the detection plate along the vertical direction. A displacement meter is installed on each pull wire, and the displacement meter is located inside the support cylinder.

[0009] The signal acquisition device includes a light source assembly, a photosensitive assembly, a roller assembly, and a controller. The light source assembly and the photosensitive assembly are located at both ends of the probe rod. The pull wire is wound around the roller assembly. A toothed disc is installed at one end of the roller assembly. A worm gear that meshes with the toothed disc is installed on one side of the toothed disc. A motor that drives the worm gear to rotate is installed at one end of the worm gear. The light source assembly, the photosensitive assembly, and the motor are all connected to the controller.

[0010] The diameter of the support cylinder is 70~100 cm.

[0011] The beneficial effects of the dynamic monitoring system for road construction embankments provided by this invention are:

[0012] (1) By using the monitoring device in the roadbed body, the embankment construction process and settlement after use can be conveniently monitored. The support cylinder on the monitoring device is composed of multiple cylinders in sequence. It can be assembled according to the construction progress during construction, so as to avoid the monitoring device affecting the normal construction of the embankment. The probe rod between adjacent support cylinders can monitor the vertical settlement of the embankment during construction in real time. The probe plate on the support cylinder can monitor the lateral compression of the embankment, thereby realizing the all-round monitoring of the embankment and providing reference data for embankment construction so as to adjust the construction process in a timely manner.

[0013] (2) By installing a light tube inside the probe, the stress state of the probe can be determined by the attenuation of light during propagation, providing reference data for the construction of the embankment;

[0014] (3) By setting a concrete groove on the outside of the probe and filling the concrete groove with dry sand, the sand can not only provide a certain support for the probe, but also squeeze the sand after the probe is subjected to force, so that the probe can quickly respond to the force.

[0015] (4) By setting up detection plates, not only can the lateral force of the embankment be reflected, but also a certain soil retention effect can be provided to reduce the flow of fill material and thus improve the safety of the embankment;

[0016] (5) By setting up a signal acquisition device, the data fed back by the probe rod and the probe plate can be easily transmitted, providing timely signal feedback for the construction and maintenance of the embankment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a structural schematic diagram provided for an embodiment of the present invention.

[0019] Figure 2 This is a schematic diagram of the internal structure of the probe provided in an embodiment of the present invention.

[0020] Figure 3 This is a schematic diagram of the probe rod installation provided in an embodiment of the present invention.

[0021] Figure 4 This is a schematic diagram of the detector plate provided in an embodiment of the present invention.

[0022] Figure 5 This is a schematic diagram of the signal acquisition device provided in an embodiment of the present invention.

[0023] Figure 6 This is a schematic diagram of the installation of the detector plate during construction, as provided in an embodiment of the present invention.

[0024] Figure 7 This is a schematic diagram of the installation of the probe rod during construction, as provided in an embodiment of the present invention.

[0025] Reference numerals: 1. Roadbed; 11. Concrete trough; 12. Rubber pad; 2. Support cylinder; 21. Sleeve; 3. Detector rod; 31. Connecting seat; 32. Hinge ball; 33. Sleeve; 34. Concave lens; 35. Light transmission hole; 36. Support spring; 37. Light tube; 4. Detector plate; 41. Support frame; 42. Connecting hole; 43. Steel cable; 44. Guy wire; 45. Displacement gauge; 5. Signal acquisition device; 51. Light source assembly; 52. Photosensitive assembly; 53. Wire roller assembly; 54. Gear disc; 55. Worm gear; 56. Motor; 57. Controller. Detailed Implementation

[0026] Example

[0027] like Figures 1-7As shown, the road construction embankment dynamic monitoring system provided in this embodiment includes a roadbed body 1 and a monitoring device installed within the roadbed body 1. The roadbed body 1 is the embankment, and the monitoring device is pre-embedded during the construction of the roadbed body 1. The monitoring device includes support cylinders 2 vertically installed on both sides of the roadbed body 1 and detection rods 3 connecting adjacent support cylinders 2. The detection rods 3 are used to detect the settlement generated during the construction of the roadbed body 1. Their function is to reflect the settlement state of the roadbed body 1 in a timely manner and provide reference data for road construction and subsequent operation. To facilitate the construction of the embankment, the support cylinders 2 include multiple sleeves 21 spliced ​​together in sequence. The method of splicing multiple sleeves 21 can cope with the height changes during the construction of the embankment and avoid the support cylinders 2 affecting the construction of the embankment. The sleeves 21 are provided with through holes for the detection rods 3 to pass through. The detection rods 3 extend into the sleeves 21 to facilitate the transmission of monitoring signals. The outer wall of the sleeves 21 is hinged. Several radially distributed detection plates 4 are provided. On the one hand, the detection plates 4 monitor the lateral deformation of the roadbed body 1. On the other hand, the detection plates 4 can limit the filling material at the support cylinder 2 to ensure the stability of the support cylinder 2. The end of the detection plate 4 extends into the sleeve 21. A row of connecting holes 42 is vertically machined on the end of the detection plate 4 away from the sleeve 21. Steel cables 43 are connected between the detection plates 4 located on the same working plane. Under the action of the steel cables 43, adjacent support cylinders 2 can be spliced ​​into a whole to ensure the structural strength between the support cylinders 2. At the same time, it can also provide auxiliary support for the embankment. A signal acquisition device 5 is installed in the middle of the support cylinder 2. A support seat for the signal acquisition device 5 is provided inside the sleeve 21. A quick connector is provided on the signal acquisition device 5 outside the support seat. The quick connector can connect multiple signal acquisition devices 5 located in the same support cylinder 2 in series, which not only facilitates maintenance but also improves the stability of signal transmission.

[0028] In order to facilitate the monitoring of the settlement of the roadbed 1, such as Figure 2 , Figure 3As shown, the detection rod 3 includes a connecting seat 31, a hinge ball 32, and a sleeve 33. A concave lens 34 is installed in the middle of the connecting seat 31, and hinge balls 32 are installed on the connecting seats 31 on both sides of the concave lens 34. The ends of the hinge balls 32 are machined with light-transmitting holes 35, which allow light to pass through and be directed towards the concave lens 34, and then through another light-transmitting hole 35, thus realizing the transmission of light. By utilizing the change in light, the bending of the detection rod 3 can be detected to determine the basic path. The settling of body 1 is achieved by a support spring 36 fitted on the outside of the connecting seat 31 and the hinge ball 32, which makes the light-transmitting hole 35 coincide with the center line of the concave lens 34. Under the action of the support spring 36, the light path can be straight, thereby ensuring the continuity of the light path. One end of the sleeve 33 is connected to the hinge ball 32, and the other end is connected to the support cylinder 2 or the adjacent hinge ball 32. A light tube 37 is installed inside the sleeve 33. The light tube 37 is used to deliver the light source, and at the same time, the sleeve 33 can protect the light tube 37. To ensure the accuracy of the detection rod 3, a concrete trough 11 is machined on the outer side of the roadbed body 1 to hold the detection rod 3. The concrete trough 11 is filled with dry sand with a mesh size of 20-70. The dry sand has good fluidity, and when the main body settles, it will compress the sand to flow, causing the detection rod 3 to bend. After bending, the light transmission effect of the internal light path of the detection rod 3 will decrease sharply. The settlement data of the roadbed body 1 can be determined by detecting the difference in brightness between the incident light and the output light. To ensure the detection rod 3, a rubber pad 12 is laid on top of the concrete trough 11. The rubber pad 12 can separate the filler and sand of the roadbed body 1 to ensure that the detection rod 3 can perform detection smoothly. The detection rod 3 is horizontally installed on the upper part of the concrete trough 11. To ensure detection accuracy, the projections of the concrete troughs 11 at different heights are staggered, that is, they cannot be located on the same vertical working surface. In this way, the concrete trough 11 can play a certain supporting role, reduce the flow of aggregate, and provide better monitoring of the settlement of the roadbed body 1.

[0029] To facilitate monitoring of the horizontal flow of the packing material in roadbed 1, such as Figure 4 , Figure 5 As shown, the detector plate 4 is provided with a support frame 41 on the outside, and the connection hole 42 is located on the support frame 41. The surface of the detector plate 4 is made of flexible material. Multiple rows of pull wires 44 are horizontally installed in the middle of the detector plate 4 along the vertical direction. Each pull wire 44 is equipped with a displacement gauge 45. The displacement gauge 45 is located inside the support cylinder 2. When the filler settles in the vertical direction, the filler below it will be squeezed to both sides. At this time, the pull wires 44 are pushed, and the data of the pull wires 44 stretching will be reflected on the displacement gauge 45, thereby providing feedback on the movement distance of the filler. The detector plates 4 located on the same working plane are connected by steel cables 43, which can ensure the straightness of the detector plates 4 and provide accurate data for the flow of filler in the roadbed body 1.

[0030] To facilitate the acquisition of data monitored by probe rod 3 and probe plate 4, such as Figure 4 , Figure 5 As shown, the signal acquisition device 5 includes a light source assembly 51, a photosensitive assembly 52, a roller assembly 53, and a controller 57. The light source assembly 51 and the photosensitive assembly 52 are located at both ends of the probe rod 3. The light source assembly 51 emits a light signal. After the light signal passes through the probe rod 3, the photosensitive assembly 52 acquires the parameters. After reading the data from the light source assembly 51 and the photosensitive assembly 52, and removing the light attenuation in the probe rod 3, the degree of bending of the probe rod 3 can be obtained, thereby determining the settlement of the roadbed body 1 and the attenuation of light passing through the probe rod 3. The installation process can be tested during the installation process. The pull wire 44 is wound around the roller assembly 53. A toothed disc 54 is installed at one end of the roller assembly 53. A worm gear 55 that meshes with the toothed disc 54 is installed on one side of the toothed disc 54. A motor 56 that drives the worm gear 55 to rotate is installed at one end of the worm gear 55. When the motor 56 drives the worm gear 55 to rotate, the worm gear 55 meshes with the toothed disc 54, which can tighten the pull wire 44. The tightened pull wire 44 will transmit a signal to the displacement meter 45. The light source assembly 51, the photosensitive assembly 52 and the motor 56 are all connected to the controller 57.

[0031] To facilitate workers' inspection and maintenance of the monitoring device, the diameter of the support cylinder 2 is 70~100 cm, which allows workers to easily enter the support cylinder 2.

[0032] The method of using this invention is as follows:

[0033] First, the base of the roadbed 1 is treated. After treatment, the sleeve 21 is placed vertically, and the corresponding detection plate 4 is installed. The detection plates 4 located on the same working plane are connected by steel cable 43. Figure 6 As shown, to ensure the integrity between adjacent sleeves 21, the support cylinder 2 is then wrapped with a film, followed by backfilling using a forklift and a roller. Next, a trench corresponding to the concrete trough 11 is dug at the backfilling site, and then the concrete trough 11 is poured. After pouring, the concrete trough 11 is flush with the single-layer ground. Dry sand is then filled into the concrete trough 11, and the assembled probe rod 3 is placed on the sand. Both ends of the probe rod 3 are connected to the sleeve 21, as shown. Figure 7As shown, rubber pads 12 are finally covered on the concrete trough 11 to prevent subsequent filler from mixing with sand. Finally, the probe rod 3 and probe plate 4 are connected to the signal acquisition device 5 and tested. When testing the probe rod 3, the light source assembly 51 and photosensitive assembly 52 are used to detect the stress state of the probe rod 3. After the probe plate 4 is cast, the motor 56 drives the roller assembly 53 to rotate, so that the pull wire 44 is taut and the data on the displacement gauge 45 is consistent. In this way, when the filler settles and flows, it will directly drive the pull wire 44 to move, which is used to obtain the lateral movement of the filler. After the single-layer roadbed 1 is completed, the previous step is repeated to carry out the construction of the upper roadbed. At this time, the installation of the probe plate 4 is done in the same way, but the concrete troughs 11 of different heights cannot overlap and need to be staggered. Repeat the above steps until the roadbed 1 is completed.

[0034] During construction, the data fed back by the detection rod 3 and the detection plate 4 can be used to determine whether the filling material is not compacted or whether there is leakage, so that the construction process can be adjusted in time to ensure the quality of the embankment. After the embankment is completed, the monitoring device can continue to monitor and detect settlement sections as early as possible. Early detection can effectively prevent the spread of settlement and reduce maintenance costs.

[0035] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications and substitutions based on the technical solutions and inventive concepts provided by the present invention should be covered within the scope of protection of the present invention. It should be noted that the structures or components illustrated in the accompanying drawings are not necessarily drawn to scale, and the present invention omits descriptions of well-known components, processing technologies, and processes to avoid unnecessarily limiting the present invention.

Claims

1. A dynamic monitoring system for road embankments used in road construction, characterized in that: The system includes a roadbed and a monitoring device installed within the roadbed. The monitoring device includes support cylinders vertically installed on both sides of the roadbed and detection rods connecting adjacent support cylinders. Each support cylinder includes multiple sleeves sequentially spliced ​​together. Each sleeve has through holes for the detection rods to pass through. Several radially distributed detection plates are hinged to the outer wall of each sleeve. The ends of the detection plates extend into the sleeves. A row of connecting holes is vertically machined on the end of each detection plate away from the sleeve. Steel cables are connected between the detection plates located on the same working plane. A signal acquisition device is installed in the middle of the support cylinder. A support base for the signal acquisition device is provided inside the sleeve. A quick-connect plug is provided on the signal acquisition device outside the support base.

2. The road construction embankment dynamic monitoring system according to claim 1, characterized in that: The probe rod includes a connecting seat, a hinge ball, and a sleeve. A concave lens is installed in the middle of the connecting seat, and hinge balls are installed on the connecting seats on both sides of the concave lens. The ends of the hinge balls are machined with light-transmitting holes. Support springs are fitted on the outside of the connecting seat and the hinge balls to make the light-transmitting holes coincide with the center line of the concave lens. One end of the sleeve is connected to the hinge ball, and the other end is connected to the support cylinder or an adjacent hinge ball. A light tube is installed inside the sleeve.

3. The road construction embankment dynamic monitoring system according to claim 2, characterized in that: A concrete trough for placing the probe is machined on the roadbed outside the probe. The concrete trough is filled with dry sand with a mesh size of 20 to 70. A rubber pad is laid on top of the concrete trough. The probe is horizontally installed on the upper part of the concrete trough. The projections of the concrete troughs at different heights are staggered.

4. The road construction embankment dynamic monitoring system according to claim 3, characterized in that: The detector plate is provided with a support frame on the outside, and the connection hole is located on the support frame. The surface of the detector plate is made of flexible material. Multiple rows of pull wires are horizontally installed in the middle of the detector plate along the vertical direction. A displacement meter is installed on each pull wire, and the displacement meter is located inside the support cylinder.

5. The road construction embankment dynamic monitoring system according to claim 4, characterized in that: The signal acquisition device includes a light source assembly, a photosensitive assembly, a roller assembly, and a controller. The light source assembly and the photosensitive assembly are located at both ends of the probe rod. The pull wire is wound around the roller assembly. A toothed disc is installed at one end of the roller assembly. A worm gear that meshes with the toothed disc is installed on one side of the toothed disc. A motor that drives the worm gear to rotate is installed at one end of the worm gear. The light source assembly, the photosensitive assembly, and the motor are all connected to the controller.

6. The road construction embankment dynamic monitoring system according to claim 5, characterized in that: The diameter of the support cylinder is 70~100 cm.

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