Road surface construction monitoring system and use method thereof

Abstract

The invention discloses a pavement construction monitoring system and a use method thereof, and when a plurality of geotechnical grids are connected in the length direction, corresponding optical fiber pairs are connected to form optical fiber chain pairs; a plurality of butt joint optical fibers detachably connect one ends of the optical fiber chain pairs; the plurality of sensing assemblies are arranged corresponding to the other end of the optical fiber chain pair. According to the pavement construction monitoring system and the use method thereof, the bending forward angle of the separation sheet is 120 degrees, a stable honeycomb structure is formed, and the optical fiber part is guaranteed; the upper structural strip protects the optical fiber part, and meanwhile, the vertical structural strip and the optical fiber part form a function, so that the optical fiber part can obtain a more accurate feedback signal; related sensing data of the sensing assembly can guide whether the laying state of the geotechnical grid reaches the standard or not, in the follow-up road surface construction process, the sensing data of the sensing assembly can also provide the machining path, speed and pressure, and after road surface construction is completed, the remaining optical fiber part can still monitor the state of the road surface.

Description

Technical Field

[0001] This invention relates to the field of road construction, and in particular to a road construction monitoring system and its usage method. Background Technology

[0002] A road surface is a layered structure built on top of the roadbed using various road construction materials, directly bearing vehicle loads. A high-quality road surface should have sufficient strength and good stability, and its surface should be smooth, dense, and skid-resistant. The road surface structure consists of a surface layer, a base layer, and a subbase layer. Road surface construction refers to various engineering operations performed on the road surface, such as laying new road surfaces, repairing damaged road surfaces, or improving the road structure. This work typically includes steps such as cleaning the ground, laying materials (such as asphalt or concrete), compaction, and finishing.

[0003] In general construction, after the roadbed is compacted, a subbase is constructed on top. The subbase can be made of soil and sand, providing a low porosity (4% to 7%). The drainage layer can be made of various sizes and types of aggregates or sand, depending on construction requirements. A surface layer of cement or asphalt is then constructed on top of the drainage layer. During this construction process, both the compaction force and compaction time need to be monitored, and the structural stability within each structural layer is also a monitoring target; however, achieving this monitoring process is difficult. Summary of the Invention

[0004] The main objective of this invention is to provide a road construction monitoring system and its usage method, aiming to solve the problem of difficulty in monitoring the road construction process.

[0005] To achieve the above objectives, the present invention provides a road construction monitoring system, configured for road surfaces, characterized in that it includes: Multiple geogrids are provided, each geogrid comprising multiple parallel partitions and multiple fiber pairs. Each partition has a connecting area and a support area of ​​equal length arranged sequentially along its length, with the connecting area at both ends. Two adjacent connecting areas on each partition are connected to corresponding connecting areas on the partitions on either side of the partition. Each partition includes two connecting pieces joined together in the upward direction. Both the connecting area and the support area have upper structural strips arranged along their length. Each partition has multiple vertically arranged vertical structural strips spaced apart along its length, located below the upper structural strips. The upper structural strips and vertical structural strips are positioned between two connecting pieces. Each fiber pair includes fiber portions respectively disposed in two parallel partitions, located below the vertical structural strips with both ends exposed above the partition. The geogrid is placed in the subbase or drainage layer of a road surface. When multiple geogrids are connected along their length, the corresponding fiber pairs are connected to form fiber chain pairs. Multiple interlocking optical fibers, wherein the interlocking optical fibers detachably connect one end of the optical fiber chain pair; Multiple sensing components are disposed at the other end of the optical fiber link pair, and the sensing components include a light source and a signal processing unit.

[0006] Furthermore, a vertical structural strip is provided between two adjacent upper structural strips on the separator.

[0007] Furthermore, both the connecting area and the supporting area on the separator are provided with lower structural strips along their length, and the lower structural strips are matched with the upper structural strips and located below the optical fiber portion.

[0008] Furthermore, the connecting areas on adjacent separators are connected by heat fusion or bonding.

[0009] Furthermore, the geogrid is placed in the subbase or drainage layer of the road surface.

[0010] Furthermore, the connecting areas on adjacent separators are connected by heat fusion or bonding.

[0011] The present invention also provides a method of use for the above-mentioned road construction monitoring system, comprising: S1. After transferring multiple geogrids to the construction location, the separation plates are laid. S2. Connect the corresponding optical fiber sections on the geogrid in the length direction to form optical fiber chain pairs; S3. Connect one end of the fiber optic chain using a mating fiber optic cable; S4. Place the light source and signal processing unit at the other end of the fiber optic link; S5. Press the geogrid at the preset position, and evaluate and correct the geogrid laying status through the operation of the sensing components. S6. Monitor the road construction time and construction quality information through the sensing components; S7. Dismantle the fiber optic chain, including the connecting fiber, light source, and signal processing unit at the front end, and continue laying multiple geogrids, repeating steps S1 to S6.

[0012] Furthermore, in step S3, the splicing optical fiber is positioned at the front end of the optical fiber chain pair.

[0013] Further, step S4 is followed by: Inspection wells are installed to protect the light source and signal processing unit.

[0014] Furthermore, the method of use includes: After the road surface construction is completed, the fiber optic chains are connected in series through multiple connecting optical fibers, and a light source and a signal processing unit are retained to form an installation. The fiber optic chain pair includes two parallel fiber optic chains.

[0015] The road construction monitoring system and its usage method provided by this invention can form a geogrid after the separator is unfolded. The bending angle of the separator is 120 degrees, forming a stable honeycomb structure while ensuring that the bending angle of the optical fiber is not too small, thus guaranteeing the normal operation of the optical fiber. The upper structural strip provides structural strength in the length direction, and the vertical structural strip provides structural strength in the height direction. The upper structural strip protects the optical fiber while interacting with it through the vertical structural strip, enabling the optical fiber to obtain more accurate feedback signals. The optical fibers are set in pairs, so the installation and removal of the light source and signal processing unit can be completed at one end. When the parallel optical fibers are compressed, their positions are the same, but they generate two sensing signals, which can be used to judge and correct whether the position setting of the optical fibers is correct. The relevant sensing data of the sensing components can guide whether the laying status of the geogrid meets the standards. During the subsequent road construction process, the sensing data of the sensing components can also provide the processing path, speed, and pressure. After the road construction is completed, the remaining optical fibers can still monitor the condition of the road surface. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of a partition plate in a road construction monitoring system according to an embodiment of the present invention; Figure 2 This is a schematic diagram of a road construction monitoring system according to an embodiment of the present invention; Figure 3 This is a schematic diagram of the extracted optical fiber chain pair in a road construction monitoring system according to an embodiment of the present invention; Figure 4 This is a cross-sectional schematic diagram of a partition plate with an optical fiber section in a road construction monitoring system according to an embodiment of the present invention. Detailed Implementation

[0017] It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0018] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in this specification means the presence of the stated features, integers, steps, operations, elements, units, modules, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, units, modules, components, and / or groups thereof. It should be understood that when we say an element is “connected” or “coupled” to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. Furthermore, “connected” or “coupled” as used herein can include wireless connection or wireless coupling. The term “and / or” as used herein includes all or any of the units and all combinations of one or more associated listed items.

[0019] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art and should not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0020] Reference Figures 1 to 4 In one embodiment of the present invention, a road construction monitoring system includes: Multiple geogrids 100, each geogrid 100 including multiple parallelly arranged separators 110 and multiple fiber optic pairs. Each separator 110 has connecting areas 111 and supporting areas 112 of equal length arranged sequentially along its length, with the connecting areas 111 at both ends. Two adjacent connecting areas 111 on a separator 110 are connected to corresponding connecting areas 111 on the separators 110 on either side of the separator 110. Each separator 110 includes two connecting pieces joined together at the thicker end. Upper structural strips 113 are provided along the length of both the connecting areas 111 and the supporting areas 112. The partition 110 has a plurality of vertically arranged vertical structural strips 114 spaced apart along its length and located below the upper structural strip 113. The upper structural strip 113 and the vertical structural strips 114 are disposed between two connecting pieces. The optical fiber pair includes optical fiber portions 115 respectively disposed in two parallel partitions 110. The optical fiber portions 115 are located below the vertical structural strips 114 and have both ends exposed above the partitions 110. The geogrid 100 is disposed in the subbase or drainage layer of the road surface. When a plurality of geogrids 100 are connected along their length, the corresponding optical fiber pairs are connected to form an optical fiber chain pair 120. Multiple interlocking optical fibers 200, wherein the interlocking optical fibers 200 detachably connect one end of the optical fiber chain pair 120; Multiple sensing components are disposed at the other end of the fiber optic link 120, and the sensing components include a light source 310 and a signal processing unit 320.

[0021] In existing technologies, during construction, both the clamping force and clamping time need to be monitored, and the structural stability within each structural layer is also a monitoring target. However, the implementation of the above monitoring process is difficult.

[0022] This invention provides a road construction monitoring system. A geogrid 100 includes multiple parallelly arranged separators 110 and multiple optical fiber pairs. The thickness and height of the separators 110 are set according to actual usage, for example, 10 cm high and 2 mm thick. The number of optical fiber pairs is selected according to the opening of the geogrid 100. Multiple geogrids 100 are connected along their length. The geogrid 100 includes multiple parallelly arranged separators 110 and multiple optical fiber pairs. In a compressed state, the separators 110 are close together in the thickness direction for easy storage. In a stretched state, the multiple separators 110 unfold in the thickness direction to form the geogrid 100. The separators 110 have sequentially arranged connecting areas 111 and supporting areas 112 of equal length along their length. The two ends of each separator 110 are connecting areas 111. Two adjacent connecting areas 111 on a separator 110 are connected to corresponding connecting areas 111 on the separators 110 on either side of the separator 110. The partition plates 110 are not connected in a point structure, but rather in a linear form along the connecting areas 111. When multiple partition plates 110 are connected and unfolded, they form a honeycomb structure with each individual plate being a regular hexagon. Each partition plate 110 includes two connecting plates joined together in the thickness direction. These two connecting plates can be an integral structure or a connecting structure, providing a foundation for the subsequent installation of related components. Upper structural strips 113 are provided along the length of both the connecting areas 111 and the support areas 112 on the partition plate 110. These upper structural strips 113 provide structural strength to the connecting areas 111 and the support areas 112 in the length direction, reducing the possibility of accidental bending. Multiple cylindrical vertical structural strips 114 are spaced apart along the length of the partition plate 110 and extend in the height direction. These vertical structural strips 114 provide structural strength to the connecting areas 111 and the support areas 112 in the height direction. The spacing between the vertical structural strips 114 can be one-third to one-fifth of the length of the connecting areas 111. If the spacing is too small, the overall cost increases; if the spacing is too large, it will not provide adequate support. The upper structural strip 113 is located above the vertical structural strip 114. The upper structural strip 113 and the vertical structural strip 114 are positioned between two connecting pieces. For example, if the two connecting pieces are joined by thermal fusion, the upper structural strip 113 and the vertical structural strip 114 can be placed on one connecting piece before the thermal fusion process is performed. Depending on the implementation, other components can be embedded within the connecting pieces before they are joined. The optical fiber pair includes optical fiber portions 115 respectively disposed in two parallel separators 110. It should be noted that the optical fiber portion 115 refers to an entire structure based on optical fiber and having a related encapsulation structure. The optical fiber portion 115 is located below the vertical structural strip 114 and its two ends protrude from the separators 110, thereby achieving a docking effect. The geogrid 100 is disposed in the subbase or drainage layer of the road surface. When multiple geogrids 100 are connected in the length direction, the corresponding optical fiber pairs are connected to form an optical fiber chain pair 120. The optical fiber chain pair 120 includes two parallel optical fiber chains.During the formation of the fiber optic link 120, the two fiber sections 115 in the fiber optic link are connected along their length. The fiber optic link 120 has four free ends at each end along its length. The upper structural strip 113 enhances structural stability along its length while protecting the fiber section 115. The upper structural strip 113 interacts with the fiber section 115 through the vertical structural strip 114, allowing the fiber section 115 to obtain a more accurate feedback signal. For example, without the vertical structural strip 114, the separator 110 has a larger dimension in the height direction, and its own elastic buffering effect results in weaker feedback at the fiber section 115. Conversely, the vertical structural strip 114 introduces this feedback. The deformation of the upper structural strip 113 can act on the fiber section 115 through the vertical structural strip 114. The length of the vertical structural strip 114 is between 50% and 90% of the length of the separator 110.

[0023] Multiple connecting optical fibers 200 are respectively configured to correspond to multiple optical fiber pairs 120. Each optical fiber pair 120 has four free ends at both ends along its length. The connecting optical fibers 200 can detachably connect one end of the optical fiber pair 120 to form a U-shaped structure.

[0024] Multiple sensing components are respectively configured for multiple fiber optic links 120. Each sensing component is located at the other end of a fiber optic link 120. Each sensing component includes a light source 310 and a signal processing unit 320. Specifically, the light source 310 and the signal processing unit 320 are respectively located at two free ends of the other end of the fiber optic link 120.

[0025] The light source 310 provides coherent light and guides it to the optical fiber section 115 via a beam splitter. The optical fiber section 115 includes the optical fiber body and an encapsulation covering the pipeline body, achieving a certain level of protection to ensure the stability of the optical fiber section 115 under high-temperature and corrosive environments. The signal processing unit 320 converts the modulated optical signal into an electrical signal, the demodulator analyzes the vibration parameters, and finally calculates and converts them into vibration data. The docking optical fiber 200 includes the optical fiber body and an encapsulation covering the pipeline body, achieving a certain level of protection to ensure the stability of the docking optical fiber 200 under high-temperature and corrosive environments. During construction, protective boxes can be provided for the light source 310 and the sensing components.

[0026] During operation, firstly, the bending angle of the separator 110 is 120 degrees, which can form a stable honeycomb structure while ensuring that the bending angle (120 degrees) of the optical fiber section 115 is not too small, so no abnormalities will occur during operation; secondly, the optical fiber sections 115 are set in pairs, so the installation and removal of the light source 310 and the signal processing unit 320 can be completed at one end; finally, when the parallel optical fiber sections 115 are compressed, their positions are the same, but two sensing signals are generated, which can be used to judge and correct whether the position setting of the optical fiber section 115 is correct.

[0027] In use, for example, several unexpanded geogrids 100 are placed on the foundation, and then the separators 110 are pulled apart to form a honeycomb-like geogrid 100. After the optical fiber sections 115 at corresponding positions of the geogrid 100 are connected, the two open optical fiber sections 115 are connected by the connecting optical fiber 200. At this time, each of the two optical fiber sections 115 has a free end, and the light source 310 and the signal processing unit 320 are installed on the free ends of the optical fiber sections 115, thereby generating a sensing loop. After the mechanical state at the corresponding position of the optical fiber section 115 changes, the position and strength can be calculated by the signal processing unit 320. The relevant sensing data of the sensing components can guide whether the laying state of the geogrid 100 meets the standards. When laying the bedding layer in the geogrid 100, the sensing data of the sensing components can provide the processing path, speed, and pressure of the bedding layer during the compaction process. During the subsequent construction of the drainage layer and the pavement layer, the sensing data of the sensing components can also provide the processing path, speed, and pressure. After a section of construction is completed, the connecting fiber optic cable 200 is removed. After the subsequent geogrid 100 is laid, the fiber optic sections 115 at corresponding positions of the two geogrids 100 are connected, thus increasing the detection length of the entire sensing assembly. Even after the road surface construction is completed, the remaining fiber optic section 115 can still monitor the road surface condition.

[0028] In summary, after the separator 110 is unfolded, it can form a geogrid 100. The bending angle of the separator 110 is 120 degrees, forming a stable honeycomb structure while ensuring that the bending angle of the optical fiber section 115 is not too small, thus guaranteeing the normal operation of the optical fiber section 115. The upper structural strip 113 provides structural strength in the length direction, and the vertical structural strip 114 provides structural strength in the height direction. The upper structural strip 113 protects the optical fiber section 115, and through the interaction between the vertical structural strip 114 and the optical fiber section 115, the optical fiber section 115 can obtain a more accurate feedback signal. The optical fiber sections 115 are arranged in pairs. If the light source 310 and the signal processing unit 320 are installed and removed at one end, the parallel optical fiber section 115 will be in the same position when compressed, but will generate two sensing signals. Therefore, it can be used to judge and correct whether the position setting of the optical fiber section 115 is correct. The relevant sensing data of the sensing component can guide whether the laying status of the geogrid 100 meets the standards. In the subsequent road construction process, the sensing data of the sensing component can also provide the processing path, speed and pressure. After the road construction is completed, the left-in optical fiber section 115 can still monitor the condition of the road.

[0029] In one embodiment, a vertical structural strip 114 is provided between two adjacent upper structural strips 113 on the separator 110.

[0030] In this embodiment, during use, an angle of 120 degrees is formed between adjacent upper structural strips 113 (that is, between two connection areas 111), so the probability of damage to the optical fiber section 115 is relatively high at this position. A gap is provided between two adjacent upper structural strips 113, and the size of the gap is 1.2 to 2.0 times the diameter of the vertical structural strip 114. The vertical structural strip 114 is placed in this gap. By restricting the transition area between the two connection areas 111 through the vertical structural strip 114, the bend in the transition area between the two connection areas 111 is not too large, thus ensuring the safety of the optical fiber section 115.

[0031] Reference Figure 4 In one embodiment, both the connection area 111 and the support area 112 on the separator 110 are provided with a lower structural strip 116 along their length. The lower structural strip 116 is matched with the upper structural strip 113 and is located below the optical fiber section 115.

[0032] In this embodiment, the lower structural strip 116 provides support and protection for the optical fiber section 115, reducing the risk of damage to the optical fiber section 115 when the bottom foundation of the separator 110 is poor (such as gravel). The lower structural strip 116 and the upper structural strip 113 can be approximated, both being drawn steel wires (with a diameter of about 1 mm).

[0033] In one embodiment, the connection areas 111 on adjacent separators 110 are connected by heat fusion or bonding.

[0034] In this embodiment, the connection method between the separators 110 is restricted. Both hot-melt and adhesive methods can achieve a quick and stable connection effect.

[0035] In one embodiment, the geogrid 100 is disposed on the subbase or drainage layer of the road surface.

[0036] In this embodiment, when the geogrid 100 is installed on the subbase, it can provide monitoring of the construction of the subbase, drainage layer and pavement layer. When the geogrid 100 is installed on the drainage layer, it can provide monitoring of the construction of the drainage layer and pavement layer.

[0037] In one embodiment, the connection areas 111 on adjacent separators 110 are connected by heat fusion or bonding.

[0038] In this embodiment, the connection method between the separators 110 is restricted. Both hot-melt and adhesive methods can achieve a quick and stable connection effect.

[0039] The present invention also provides a method of use for the above-mentioned road construction monitoring system, comprising: S1. After transferring multiple geogrids 100 to the construction location, the separation plates 110 are laid out. S2. Connect the corresponding optical fiber sections 115 on the geogrid 100 in the length direction to form an optical fiber chain pair 120. S3. Connect one end of the fiber optic chain pair 120 using fiber optic cable 200; S4. Place the light source 310 and the signal processing unit 320 at the other end of the fiber optic link 120; S5. Press the geogrid 100 at the preset position, and evaluate and correct the laying status of the geogrid 100 through the operation of the sensing components. S6. Monitor the road construction time and construction quality information through the sensing components; S7. Dismantle the connecting fiber optic cable 200, light source 310 and signal processing unit 320 at the front end of the fiber optic chain pair 120, and continue to lay multiple geogrids 100, repeating steps S1 to S6.

[0040] In this embodiment, in step S1, after transferring multiple geogrids 100 to the construction location, the separator 110 is pulled and laid to form a honeycomb-like grid. The geogrids 100 can be placed in a cushion layer or a drainage layer, depending on the construction conditions.

[0041] In step S2, the corresponding optical fiber sections 115 on the geogrid 100 are connected in the length direction to form an optical fiber chain pair 120.

[0042] In step S3, one end of the fiber optic chain pair 120 is connected using a connecting fiber optic cable 200. Note that "one end" of the fiber optic chain pair 120 does not refer to the same end; for example, two fiber optic chain pairs 120 may be located at opposite ends of the geogrid 100 along its length.

[0043] In step S4, the light source 310 and the signal processing unit 320 are positioned at the other end of the fiber optic link pair 120. For example, if the two free ends of the fiber optic link pair 120 are connected by the mating fiber 200, then the light source 310 and the signal processing unit 320 are positioned at the remaining two free ends. The light source 310 provides coherent light and guides it into the fiber optic section 115 through a beam splitter. The signal processing unit 320 converts the modulated optical signal into an electrical signal, the demodulator analyzes the vibration parameters, and finally calculates and converts them into vibration data.

[0044] In step S5, the geogrid 100 is compressed at a preset position, and the laying status of the geogrid 100 is evaluated and corrected by the operation of the sensing components. For example, when the parallel optical fiber section 115 is compressed, the same position generates two sensing signals. Two distance values ​​are calculated based on the two sensing signals, which indicates that there is a problem with the setting of the optical fiber link 120, that is, there is a problem with the setting of the geogrid 100.

[0045] In step S6, the time and quality information of road construction are monitored through sensor components. For example, in road paving, the construction time, pressure, and speed of each process can be recorded and monitored through relevant sensor data. Taking the compaction process as an example, the working standards of the road roller include compaction speed and pressure, and both compaction speed and pressure can be monitored through the operation of the sensor components.

[0046] In step S7, the connecting fiber optic cable 200, light source 310, and signal processing unit 320 at the front end of the fiber optic chain pair 120 are removed, and multiple geogrids 100 are laid, repeating steps S1 to S6. When all connecting fibers 200 are set at the front end, only the connecting fibers 200 need to be removed, while the light source 310 and signal processing unit 320 remain stationary; otherwise, the light source 310 and signal processing unit 320 also need to be removed and reinstalled to accommodate the continuation of the construction process.

[0047] In one embodiment, in step S3, the docking fiber 200 is positioned at the front end of the fiber optic chain pair 120.

[0048] In this embodiment, the connecting optical fiber 200 is placed at the front end, so that the light source 310 and the signal processing unit 320 remain stationary during the engineering construction process. After adding the geogrid 100, it is only necessary to disassemble the connecting optical fiber 200 and reconnect it.

[0049] In one embodiment, step S4 is followed by: Inspection wells are installed to protect the light source 310 and the signal processing unit 320.

[0050] In this embodiment, the light source 310 and the signal processing unit 320 are protected by inspection wells, which improves the convenience of maintenance.

[0051] In one embodiment, the method of use includes: After the road surface construction is completed, the fiber optic chain is connected in series through multiple connecting optical fibers 200, and a light source 310 and a signal processing unit 320 are retained to form an installation, wherein the fiber optic chain pair 120 includes two parallel fiber optic chains.

[0052] In this embodiment, while accurate monitoring of the status is required during construction, excessive detail is not necessary after construction is completed. After road surface construction, one light source 310 and one signal processing unit 320 are retained, and all fiber optic chains are connected in series via connecting fiber optic cables 200. With the light source 310 and signal processing unit 320 positioned at both ends, all fiber optic chains form a system. Relevant sensor signals can be received and processed by the signal processing unit 320, thus enabling simple and convenient monitoring of the entire road surface.

[0053] In summary, the road construction monitoring system and its usage method provided by this invention allow the separator 110 to form a geogrid 100 after unfolding. The bending angle of the separator 110 is 120 degrees, forming a stable honeycomb structure while ensuring that the bending angle of the optical fiber section 115 is not too small, thus guaranteeing the normal operation of the optical fiber section 115. The upper structural strip 113 provides structural strength in the length direction, and the vertical structural strip 114 provides structural strength in the height direction. The upper structural strip 113 protects the optical fiber section 115, and through the interaction between the vertical structural strip 114 and the optical fiber section 115, the optical fiber section 115 can obtain more accurate feedback signals. The fiber optic units 115 are arranged in pairs, so the installation and removal of the light source 310 and the signal processing unit 320 can be completed at one end. When the parallel fiber optic units 115 are compressed, their positions are the same, but two sensing signals are generated. Therefore, the position setting of the fiber optic units 115 can be judged and corrected. The relevant sensing data of the sensing components can guide whether the laying status of the geogrid 100 meets the standards. During the subsequent road construction, the sensing data of the sensing components can also provide the processing path, speed and pressure. After the road construction is completed, the remaining fiber optic units 115 can still monitor the condition of the road surface.

[0054] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A road construction monitoring system, installed corresponding to the road surface, characterized in that, include: Multiple geogrids (100) are provided, each geogrid (100) comprising multiple parallel partitions (110) and multiple optical fiber pairs. Each partition (110) has a connecting area (111) and a support area (112) of equal length arranged sequentially along its length, with the connecting area (111) at both ends. Two adjacent connecting areas (111) on each partition (110) are connected to the corresponding connecting areas (111) on the partitions (110) on both sides of the partition (110). Each partition (110) includes two connecting pieces joined together with the thickness increasing upwards. Both the connecting area (111) and the support area (112) are provided with upper structural strips (113) along their length. The separator (110) has a plurality of vertically arranged vertical structural strips (114) spaced apart in the length direction and located below the upper structural strip (113). The upper structural strip (113) and the vertical structural strips (114) are arranged between two connecting pieces. The optical fiber pair includes an optical fiber portion (115) respectively arranged in two parallel separators (110). The optical fiber portion (115) is located below the vertical structural strip (114) and its two ends are exposed in the separator (110). The geogrid (100) is arranged in the subbase or drainage layer of the road surface. When the plurality of geogrids (100) are connected in the length direction, the corresponding optical fiber pairs are connected to form an optical fiber chain pair (120). Multiple interlocking optical fibers (200) are provided, wherein the interlocking optical fibers (200) detachably connect one end of the optical fiber chain pair (120); Multiple sensing components are disposed at the other end of the fiber optic link pair (120), and the sensing components include a light source (310) and a signal processing unit (320).

2. The road construction monitoring system according to claim 1, characterized in that, A vertical structural strip (114) is provided between two adjacent upper structural strips (113) on the separator (110).

3. The road construction monitoring system according to claim 2, characterized in that, The connecting area (111) and the supporting area (112) on the separator (110) are both provided with a lower structural strip (116) along the length direction. The lower structural strip (116) is matched with the upper structural strip (113) and is located below the optical fiber part (115).

4. The road construction monitoring system according to any one of claims 1 to 3, characterized in that, The connection areas (111) on adjacent separators (110) are connected by heat fusion or bonding.

5. The road construction monitoring system according to any one of claims 1 to 3, characterized in that, The geogrid (100) is placed on the subbase or drainage layer of the road surface.

6. The road construction monitoring system according to any one of claims 1 to 3, characterized in that, The connection areas (111) on adjacent separators (110) are connected by heat fusion or bonding.

7. A method of use, applied to the road construction monitoring system according to claims X to X, characterized in that, include: S1. After transferring multiple geogrids (100) to the construction location, the separator (110) is pulled and laid. S2. Connect the corresponding optical fiber sections (115) on the geogrid (100) in the length direction to form an optical fiber chain pair (120). S3. Connect one end of the fiber optic chain pair (120) using a connecting fiber (200); S4. The light source (310) and the signal processing unit (320) are placed at the other end of the fiber optic link (120); S5. Press the geogrid (100) at the preset position, and evaluate and correct the laying status of the geogrid (100) through the operation of the sensing components; S6. Monitor the road construction time and construction quality information through the sensing components; S7. Remove the fiber optic link (120) from the front end of the connecting fiber (200), light source (310) and signal processing unit (320), and continue to lay multiple geogrids (100), repeating steps S1 to S6.

8. The method of use according to claim 7, characterized in that, In step S3, the connecting fiber (200) is set at the front end of the fiber optic chain pair (120).

9. The method of use according to claim 8, characterized in that, The step S4 is followed by: The inspection well is provided to protect the light source (310) and the signal processing unit (320).

10. The method of use according to claims 8 to 9, characterized in that, The method of use includes: After the road surface construction is completed, the fiber optic chains are connected in series through multiple connecting optical fibers (200), and a light source (310) and a signal processing unit (320) are retained to form an installation, wherein the fiber optic chain pair (120) includes two parallel fiber optic chains.

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