A splicing structure for the repair of surface subsidence of municipal roads

Abstract

This utility model discloses a repair and splicing structure for surface settlement of municipal roads, relating to the field of municipal road technology. It includes an old roadbed, with a second step on one side of the old roadbed and a new roadbed on one side of the second step. A positioning component connected to the second step is located on one side of the new roadbed. A positioning crossbar is fixed to the upper surface of the old roadbed. Positioning rods uniformly fixed to the surface of the first step are fitted one-to-one into positioning grooves on the lower surface of the second step, completing the installation of the positioning component. This precisely limits the lateral displacement of the new roadbed relative to the old roadbed, preventing roadbed misalignment caused by vehicle vibration after repair. The stepped fit increases the contact area, improves the shear strength at the interface, and reduces the risk of settlement. The dual fixing of the stepped structure and the positioning rods reduces the settlement difference between the old and new roadbeds, ensuring a smooth connection between the repaired area and the original road.

Description

Technical Field

[0001] This utility model relates to the field of municipal road technology, specifically to a repair and splicing structure for municipal road surface subsidence. Background Technology

[0002] Municipal roads, as vital urban transportation infrastructure, bear a significant volume of traffic, and their safety and stability directly impact the normal operation of the city and the safety of residents' travel. However, with the rapid development of urban construction, the continuous development and utilization of underground space, and changes in geological conditions, the problem of surface subsidence along municipal roads is becoming increasingly prominent. Surface subsidence leads to road surface defects such as unevenness, cracks, and potholes, not only affecting driving comfort and safety and increasing the probability of traffic accidents, but also damaging surrounding buildings, underground pipelines, and other facilities, triggering a series of chain reactions and causing serious negative impacts on the city's economic and social development. For example, road subsidence may cause underground pipelines to rupture, leading to interruptions in water supply, drainage, gas, and communications, affecting residents' normal lives and the normal operation of the city; severe subsidence may also cause surrounding buildings to tilt and crack, threatening the lives and property of residents.

[0003] In the process of repairing surface settlement of municipal roads, the connection between the old and new roadbeds is a key link. Some traditional splicing methods only use simple planar splicing, and the contact area between the old and new roadbeds is small. Under the repeated action of vehicle loads, relative sliding and misalignment are prone to occur, resulting in problems such as cracks and uneven settlement at the splicing parts. Moreover, there is a lack of effective positioning and fixing devices, which cannot accurately limit the lateral displacement of the new roadbed relative to the old roadbed. At the same time, gaps often appear between the splicing plates due to installation errors, resulting in insufficient sealing. Therefore, this utility model provides a splicing structure for repairing surface settlement of municipal roads. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a repair splicing structure for municipal road surface settlement. It solves the problem that in the process of repairing municipal road surface settlement, the connection between the old and new roadbeds is a crucial link. Some traditional splicing methods only use simple planar splicing, resulting in a small contact area between the old and new roadbeds. Under repeated vehicle loads, this easily leads to relative sliding and misalignment, causing problems such as cracks and uneven settlement at the splicing points. Furthermore, the lack of effective positioning and fixing devices makes it impossible to accurately limit the lateral displacement of the new roadbed relative to the old roadbed. Additionally, gaps often appear between the splicing plates due to installation errors, resulting in insufficient sealing.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a repair and splicing structure for municipal road surface subsidence, comprising an old roadbed, a second step on one side of the old roadbed, a new roadbed on one side of the second step, a positioning component connected to the second step on one side of the new roadbed, a positioning crossbar fixed to the upper surface of the old roadbed, horizontal blocks evenly fixed on both sides of the positioning crossbar, a first splicing plate at the upper end of the positioning crossbar, a splicing groove on the upper surface of the first splicing plate, locking grooves evenly formed on both sides of the splicing groove, a first connecting rod engaged inside the splicing groove, a second splicing plate connected to one end of the first connecting rod via a threaded assembly, a wire mesh frame on the upper surface of the first and second splicing plates, and reinforcing rods evenly distributed inside the first and second splicing plates.

[0006] Preferably, the positioning component includes a first step provided on one side of the new roadbed, the first step and the second step being closely fitted together, positioning rods being uniformly fixed on the surface of the first step, and positioning grooves that engage with the positioning rods being uniformly provided on the lower end face of the second step.

[0007] Preferably, the lower end face of the first splicing plate is evenly provided with a first connecting groove, and the two sides of the first connecting groove are evenly provided with a second connecting groove. The positioning crossbar is engaged with the first connecting groove, and the cross block is engaged with the second connecting groove.

[0008] Preferably, the second connecting groove is evenly distributed along both sides of the first connecting groove, and the first connecting groove is distributed in a gear-shaped structure.

[0009] Preferably, the threaded assembly includes a guide rod slidably connected inside the first connecting rod, a second connecting rod slidably connected to the outer wall of the other end of the guide rod, a second splicing plate engaging with the second connecting rod, a bidirectional lead screw threadedly connected inside the first and second connecting rods, a nut fixed to the center end of the bidirectional lead screw, and locking blocks evenly fixed on both sides of the first connecting rod, the locking blocks engaging with the locking groove.

[0010] Preferably, rubber pads are fixed on the upper and lower surfaces of the wire mesh frame, and a concrete layer covers the wire mesh frame.

[0011] Beneficial effects

[0012] This utility model provides a repair and splicing structure for surface subsidence of municipal roads. Compared with the prior art, it has the following advantages:

[0013] Firstly, this invention involves engaging the second splicing plate onto the second connecting rod, while simultaneously adjusting the positions of the first and second connecting rods so that the locking blocks on both sides of the first connecting rod engage with the locking grooves of the first splicing plate, and the locking blocks on both sides of the second connecting rod engage with the locking grooves of the second splicing plate. A bidirectional lead screw is then threaded into the first and second connecting rods. Rotating the nut at the center end of the bidirectional lead screw causes it to retract along the guide rod until the first and second splicing plates are tightly fitted together. The tightness of the connection between the splicing plates can be adjusted according to actual needs to ensure good sealing and stability at the splicing points, avoiding gaps caused by installation errors. The engagement of the locking blocks with the locking grooves prevents the first and second connecting rods from detaching from the splicing plates during retraction or use, thus improving connection reliability.

[0014] Secondly, the positioning rods uniformly fixed on the surface of the first step of this utility model are matched one by one with the positioning grooves opened on the lower end face of the second step to complete the installation of the positioning components. This can accurately limit the lateral displacement of the new roadbed relative to the old roadbed, avoid roadbed misalignment caused by vehicle vibration after repair, and increase the contact area by stepping fit, improve the shear strength at the interface, and reduce the risk of settlement. The double fixation of the step and the positioning rods reduces the settlement difference between the new and old roadbeds, ensuring a smooth connection between the repaired area and the original road. The engagement of the first connecting groove with the positioning crossbar and the engagement of the second connecting groove with the crossbar form a multi-layered connection structure, which increases the connection area and connection stability between the first splicing plate and the positioning crossbar. The gear-shaped distribution of the first connecting groove can further disperse stress, improve the reliability of the connection, and prevent the first splicing plate from loosening or shifting during use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the splicing groove structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the positioning groove structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the first connecting rod of this utility model;

[0019] Figure 5 This is a schematic diagram of the first connecting groove structure of this utility model.

[0020] In the diagram: 1. Old roadbed; 2. New roadbed; 201. First step; 202. Second step; 203. Positioning rod; 204. Positioning groove; 3. Positioning crossbar; 301. Cross block; 302. First connecting groove; 303. Second connecting groove; 304. First splicing plate; 4. Splicing groove; 401. Locking groove; 402. First connecting rod; 403. Locking block; 404. Second connecting rod; 405. Second splicing plate; 406. Reinforcing rod; 5. Guide rod; 501. Two-way threaded rod; 6. Steel wire mesh frame; 601. Rubber pad; 602. Concrete layer. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figures 1-5 This utility model provides a technical solution: a repair and splicing structure for municipal road surface subsidence, including an old roadbed 1, a second step 202 provided on one side of the old roadbed 1, a new roadbed 2 provided on one side of the second step 202, a positioning component connected to the second step 202 provided on one side of the new roadbed 2, a positioning crossbar 3 fixed to the upper end of the old roadbed 1, cross blocks 301 evenly fixed on both sides of the positioning crossbar 3, and a first splicing plate 304 provided at the upper end of the positioning crossbar 3. A splicing groove 4 is provided on the end face, and locking grooves 401 are evenly provided on both sides of the splicing groove 4. A first connecting rod 402 is engaged inside the splicing groove 4. A second splicing plate 405 connected by a threaded assembly is provided at one end of the first connecting rod 402. A wire mesh frame 6 is provided on the upper end face of the first splicing plate 304 and the second splicing plate 405. Reinforcing rods 406 are evenly distributed inside the first splicing plate 304 and the second splicing plate 405. The structural strength is enhanced by the reinforcing rods 406 evenly distributed inside the two splicing plates.

[0023] In a preferred embodiment, the positioning component includes a first step 201 provided on one side of the new roadbed 2, the first step 201 and the second step 202 being closely fitted together, a positioning rod 203 being uniformly fixed on the surface of the first step 201, and a positioning groove 204 being uniformly opened on the lower end surface of the second step 202 to engage with the positioning rod 203.

[0024] Specifically, the old roadbed 1 is pre-treated, and a second step 202 is processed on one side of it as a connection base with the new roadbed 2. The new roadbed 2 is then connected to the second step 202 of the old roadbed 1 through a positioning component to achieve initial fixation of the old and new roadbeds.

[0025] Furthermore, the positioning rods 203, which are uniformly fixed on the surface of the first step 201, are engaged one by one into the positioning grooves 204 opened on the lower end face of the second step 202, thus completing the installation of the positioning components. This can precisely limit the lateral displacement of the new roadbed 2 relative to the old roadbed 1, avoid roadbed misalignment caused by vehicle vibration after repair, and increase the contact area by stepping into the fit, thereby improving the shear strength at the interface and reducing the risk of settlement.

[0026] In a preferred embodiment, a first connecting groove 302 is evenly provided on the lower end surface of the first splicing plate 304, and a second connecting groove 303 is evenly provided on both sides of the first connecting groove 302. The positioning crossbar 3 is engaged with the first connecting groove 302, and the cross block 301 is engaged with the second connecting groove 303. The second connecting groove 303 is evenly distributed along both sides of the first connecting groove 302, and the first connecting groove 302 is distributed in a gear-shaped structure.

[0027] Specifically, a first connecting groove 302 is evenly distributed on the lower end face of the first splicing plate 304, and a second connecting groove 303 is processed on both sides of the first connecting groove 302. The positioning crossbar 3 is aligned with the first connecting groove 302 of the first splicing plate 304, and the first splicing plate 304 is slowly lowered so that the positioning crossbar 3 is completely engaged in the first connecting groove 302. This ensures that the cross blocks 301 on both sides of the positioning crossbar 3 are engaged with the second connecting grooves 303 on both sides of the first connecting groove 302, thus completing the fixing of the first splicing plate 304 and the positioning crossbar 3.

[0028] In a preferred embodiment, the threaded assembly includes a guide rod 5 slidably connected inside the first connecting rod 402, a second connecting rod 404 slidably connected to the outer wall of the other end of the guide rod 5, a second splicing plate 405 engaging with the second connecting rod 404, a bidirectional lead screw 501 threadedly connected inside the first connecting rod 402 and the second connecting rod 404, a nut fixed to the center end of the bidirectional lead screw 501, and locking blocks 403 evenly fixed on both sides of the first connecting rod 402, the locking blocks 403 engaging with the locking groove 401. The locking blocks 403 on both sides of the first connecting rod 402 and the second connecting rod 404 engage with the splicing groove 4 and locking groove 401 on the first splicing plate 304 and the second splicing plate 405. Then, the nut on the bidirectional lead screw 501 is rotated to retract the first connecting rod 402 and the second connecting rod 404 that are threaded at both ends of the bidirectional lead screw 501, ensuring that the first splicing plate 304 and the second splicing plate 405 fit more tightly. The guide rod 5 is slidably connected to the connecting rod to ensure that it provides guidance during retraction.

[0029] Specifically, the second splicing plate 405 is engaged with the second connecting rod 404. Simultaneously, the positions of the first connecting rod 402 and the second connecting rod 404 are adjusted so that the locking blocks 403 on both sides of the first connecting rod 402 engage with the locking grooves 401 of the first splicing plate 304, and the locking blocks 403 on both sides of the second connecting rod 404 engage with the locking grooves 401 of the second splicing plate 405. The bidirectional lead screw 501 is threaded into the first connecting rod 402 and the second connecting rod 404. The nut at the center end of the bidirectional lead screw 501 is rotated, causing the bidirectional lead screw 501 to drive the first connecting rod 402 and the second connecting rod 404 to retract along the guide rod 5 until the first splicing plate 304 and the second splicing plate 405 are tightly fitted together. The tightness of the connection between the splicing plates is adjusted according to actual needs to ensure good sealing and stability at the splicing points.

[0030] In a preferred embodiment, rubber pads 601 are fixed to the upper and lower surfaces of the wire mesh frame 6, and a concrete layer 602 is covered on the wire mesh frame 6. A layer of rubber pads 601 is fixed to the upper and lower surfaces of the wire mesh frame 6 to ensure that the rubber pads 601 completely cover the surface of the wire mesh frame 6. The wire mesh frame 6 with rubber pads 601 is laid on the upper surface of the first splicing plate 304 and the second splicing plate 405. The position is adjusted so that the wire mesh frame 6 covers the entire splicing area. A concrete layer 602 is poured on top of the wire mesh frame 6. After the concrete has cured and formed, the construction of the surface protection structure is completed. The rubber pads 601 can buffer the vibration when the vehicle is driving, reduce the impact of vibration on the splicing plate and the roadbed below, and reduce the probability of secondary settlement. After the wire mesh frame 6 is embedded in the concrete layer 602, it can enhance the crack resistance of the concrete, prevent the concrete from cracking due to temperature changes or load, and improve the durability of the surface structure.

[0031] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0032] During the work, the old roadbed 1 is pre-treated first, and a second step 202 is processed on one side of it as the connection base with the new roadbed 2. At the same time, a first step 201 is processed on the side of the new roadbed 2 close to the old roadbed 1. The first step 201 and the second step 202 are tightly fitted together, and the positioning rods 203 that are evenly fixed on the surface of the first step 201 are engaged one by one into the positioning grooves 204 opened on the lower end face of the second step 202. The positioning component is installed to achieve the initial fixation of the old and new roadbeds.

[0033] Align the positioning crossbar 3 with the first connecting groove 302 and slowly lower the first splicing plate 304 so that the positioning crossbar 3 is fully engaged in the first connecting groove 302. At the same time, make the horizontal blocks 301 on both sides of the positioning crossbar 3 engage with the second connecting groove 303 one by one, thus completing the fixation of the first splicing plate 304 and the positioning crossbar 3.

[0034] Then, the second splicing plate 405 is engaged with the second connecting rod 404. The positions of the first connecting rod 402 and the second connecting rod 404 are adjusted so that the locking blocks 403, which are evenly fixed on both sides of the first connecting rod 402, are engaged into the locking grooves 401 on both sides of the splicing groove 4 on the upper end face of the first splicing plate 304. At the same time, the locking blocks 403 on both sides of the second connecting rod 404 are engaged into the corresponding locking grooves 401 on the second splicing plate 405. Then, the bidirectional lead screw 501 is threaded into the inside of the first connecting rod 402 and the second connecting rod 404. The nut at the center end of the bidirectional lead screw 501 is rotated so that the bidirectional lead screw 501 drives the first connecting rod 402 and the second connecting rod 404 to retract along the guide rod 5 until the first splicing plate 304 and the second splicing plate 405 are tightly fitted together. The tightness of the connection is adjusted according to actual needs to ensure the sealing and stability of the splicing part.

[0035] Finally, a layer of rubber pads 601 is fixed on the upper and lower surfaces of the wire mesh frame 6, ensuring that the rubber pads 601 completely cover the surface of the wire mesh frame 6. The wire mesh frame 6 with rubber pads 601 is then laid on the upper surface of the first splicing plate 304 and the second splicing plate 405. The position is adjusted so that the wire mesh frame 6 covers the entire splicing area. Finally, a concrete layer 602 is poured on top of the wire mesh frame 6. After the concrete has cured and formed, the construction of the splicing structure for the surface settlement repair of the municipal road is completed.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A repair and splicing structure for surface settlement of municipal roads, comprising an old roadbed (1), characterized in that: A second step (202) is provided on one side of the old roadbed (1), and a new roadbed (2) is provided on one side of the second step (202). A positioning component connected to the second step (202) is provided on one side of the new roadbed (2). A positioning crossbar (3) is fixed on the upper surface of the old roadbed (1). Horizontal blocks (301) are evenly fixed on both sides of the positioning crossbar (3). A first splicing plate (304) is provided at the upper end of the positioning crossbar (3). The upper surface of the first splicing plate (304) has an opening. There is a splicing groove (4), and locking grooves (401) are evenly provided on both sides of the splicing groove (4). A first connecting rod (402) is engaged inside the splicing groove (4). A second splicing plate (405) is provided at one end of the first connecting rod (402) and connected by a threaded assembly. A wire mesh frame (6) is provided on the upper surface of the first splicing plate (304) and the second splicing plate (405). Reinforcing rods (406) are evenly distributed inside the first splicing plate (304) and the second splicing plate (405).

2. The repair and splicing structure for municipal road surface subsidence according to claim 1, characterized in that: The positioning component includes a first step (201) set on one side of the new roadbed (2), the first step (201) and the second step (202) are closely fitted together, the surface of the first step (201) is uniformly fixed with positioning rods (203), and the lower end face of the second step (202) is uniformly provided with positioning grooves (204) that engage with the positioning rods (203).

3. The repair and splicing structure for municipal road surface subsidence according to claim 1, characterized in that: The lower end face of the first splicing plate (304) is uniformly provided with a first connecting groove (302), and the two sides of the first connecting groove (302) are uniformly provided with a second connecting groove (303). The positioning crossbar (3) is engaged with the first connecting groove (302), and the cross block (301) is engaged with the second connecting groove (303).

4. The repair and splicing structure for municipal road surface subsidence according to claim 3, characterized in that: The second connecting groove (303) is evenly distributed along both sides of the first connecting groove (302), and the first connecting groove (302) is distributed in a gear-shaped structure.

5. The repair and splicing structure for municipal road surface subsidence according to claim 1, characterized in that: The threaded assembly includes a guide rod (5) slidably connected inside the first connecting rod (402), and a second connecting rod (404) slidably connected to the outer wall of the other end of the guide rod (5). The second splicing plate (405) is engaged with the second connecting rod (404). The first connecting rod (402) and the second connecting rod (404) are internally threaded with a bidirectional lead screw (501). A nut is fixed at the center end of the bidirectional lead screw (501). Locking blocks (403) are evenly fixed on both sides of the first connecting rod (402). The locking blocks (403) are engaged with the locking groove (401).

6. The repair and splicing structure for municipal road surface subsidence according to claim 1, characterized in that: Rubber pads (601) are fixed on the upper and lower surfaces of the wire mesh frame (6), and a concrete layer (602) covers the wire mesh frame (6).

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