Cover plate culvert with reinforcing structure and construction method of cover plate culvert

Abstract

The invention relates to the technical field of cover plate culvert reinforcing and repairing, in particular to a cover plate culvert with a reinforcing structure and a construction method thereof, and the cover plate culvert with the reinforcing structure comprises a cover plate, a culvert abutment body and a reinforcing beam. The cover plate is located at the top of the culvert. The culvert abutment bodies are located on the two sides of a culvert, a first vertical groove and a second vertical groove are formed in the opposite positions of the culvert abutment bodies on the two sides correspondingly, the reinforcing beam is horizontally arranged in the width direction of the culvert, the two ends of the reinforcing beam are fixed into the first vertical groove and the second vertical groove correspondingly, and the top face of the reinforcing beam is connected with the bottom of the cover plate. And the first vertical grooves and the second vertical grooves are filled with cementing materials. The reinforcing beams are mounted at the bottom of the cover plate, so that the cover plate only needs to be reinforced in the culvert. In this way, the situation that road traffic above the cover plate is interrupted or traffic control needs to be implemented due to construction is effectively avoided, and therefore the aim of reducing the influence on the road traffic above is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of reinforcement and repair of cover plate culverts, and in particular to a cover plate culvert with a reinforcement structure and a construction method thereof. Background Art

[0002] With the continuous development of transportation infrastructure, the number of existing highway widening projects is increasing. Due to the increase in lanes after widening, the influence line of the moving load of the culvert under the original highway has shifted, and the roadbed filling material has not been reinforced at the junction of the widened section of the highway and the original roadbed. Some sections of the culvert, especially the cover plate near the emergency lane of the original highway, have suffered varying degrees of damage, such as cracks and deflection, posing a potential threat to the safe operation of the highway.

[0003] At present, cracks and deflection defects in the covers of highway engineering culverts are common and frequent. If they are not discovered and repaired in time, the service life of the highway engineering will be reduced. In serious cases, it will affect the safety of vehicles and pedestrians on the highway and affect the use of the culvert covers.

[0004] There are many ways to reinforce the cover of highway engineering culverts, such as:

[0005] Excavate the roadbed filler and then replace the cover. This method requires interrupting the traffic on the highway above the culvert, excavating the pavement, excavating the roadbed filler, replacing the cover, and backfilling the roadbed filler. Or stick a steel plate on the bottom of the cover in the damaged area and grout the roadbed filler above the culvert. This method requires temporary control of highway traffic and grouting of the roadbed filler to improve the filler strength.

[0006] There are many ways to reinforce the cover of conventional highway engineering culverts, but all of them have the problem of having a great impact on the traffic on the highway above the culvert. Summary of the invention

[0007] The purpose of the present invention is to overcome the disadvantage that the reinforcement method of the culvert cover in the prior art has a great impact on the traffic of the upper highway, and to provide a cover culvert with a reinforcement structure and a construction method thereof.

[0008] In a first aspect, the present invention provides a cover culvert with a reinforced structure, comprising:

[0009] A cover plate, the cover plate being located on the top of the culvert;

[0010] A culvert platform, wherein the culvert platform is located on both sides of the culvert, and a first vertical groove and a second vertical groove are respectively provided at opposite positions on the culvert platforms on both sides, and the top surfaces of the first vertical groove and the second vertical groove are both located at the bottom of the cover plate;

[0011] A reinforcing beam, wherein the reinforcing beam is horizontally arranged along the width direction of the culvert, the two ends of the reinforcing beam are respectively fixed in the first vertical groove and the second vertical groove, the top surface of the reinforcing beam is connected to the bottom of the cover plate, and the first vertical groove and the second vertical groove are both filled with cementitious material.

[0012] The present invention provides a cover plate culvert with a reinforcement structure, wherein the cover plate is the top structure of the culvert, used to bear the load of the road above the cover plate, and the culvert platform is used to support the cover plate. The first vertical groove and the second vertical groove are used to install the two ends of the reinforcement beam. In addition, the first vertical groove and the second vertical groove also serve as the path space when the reinforcement beam is moved to its final installation position, ensuring that the reinforcement beam can be smoothly placed in the predetermined position. The cementitious material is used as a filler for the first vertical groove and the second vertical groove. After solidification, the cementitious material plays a role in providing support for the reinforcement beam. After the reinforcement beam is constructed in place, the top surface of the reinforcement beam is connected to the bottom of the cover plate. This solution enables the reinforcement beam to share the load borne by the cover plate, thereby reducing the deflection deformation of the cover plate caused by the force, and then reinforcing the cover plate.

[0013] By installing the reinforcement beam at the bottom of the cover plate, it is only necessary to reinforce the cover plate inside the culvert without excavating and replacing the cover plate, and grouting the roadbed filler above the cover plate. This method effectively avoids the situation where the highway traffic above the cover plate is interrupted or traffic control is required due to construction, thereby achieving the goal of reducing the impact on the highway traffic above.

[0014] The cementitious material can be ordinary concrete, slightly expansive concrete or epoxy concrete.

[0015] The reinforcement beam can be a reinforced concrete beam, an I-beam or an HM-shaped steel.

[0016] The heights of the first vertical groove and the second vertical groove can be the same or different. However, no matter how the height of the groove is set, it is necessary to ensure that the reinforcing beam can rotate and translate inside the culvert so as to be able to move smoothly to the bottom of the cover plate. After the movement is completed, the two ends of the reinforcing beam can be located in the first vertical groove and the second vertical groove at opposite positions on the left and right sides.

[0017] When there are multiple groups of the first vertical grooves and the second vertical grooves, all the first vertical grooves may be arranged on the culvert platform on the same side, and all the second vertical grooves may be correspondingly arranged on the culvert platform on the other side; alternatively, on the culvert platform on the same side, the first vertical grooves and the second vertical grooves may be arranged alternately.

[0018] Preferably, the height of the first vertical groove is less than the height of the second vertical groove, and the straight-line distance between the groove top surface of the first vertical groove and the groove bottom surface of the second vertical groove opposite to the first vertical groove is equal to the sum of the length of the reinforcement beam and the height of the reinforcement beam. This solution can ensure that the required groove height after the groove is opened just meets the installation requirements of the reinforcement beam, thereby reducing the amount of groove opening work, shortening the repair period, and saving the cost of groove opening.

[0019] Preferably, on the culvert platform on the same side, the first vertical groove and the second vertical groove are arranged alternately. This solution is a groove opening solution when multiple reinforcement beams are required to reinforce the cover plate. This solution is to avoid the situation where the groove opening of the culvert platform on both sides is unbalanced, which may weaken the integrity and stability of the culvert structure.

[0020] Preferably, each of the cover plates is provided with the same number of the first vertical grooves and the second vertical grooves at the bottom of the same side. This solution enables the cover plate to obtain balanced support at both ends, effectively improving the stability and load-bearing capacity of the reinforced cover plate, and avoiding deformation or damage caused by uneven force.

[0021] Preferably, a gap of 2 cm to 3 cm is provided between the reinforcement beam and the cover plate, and the gap is filled with bridge bearing grouting material. Since it is difficult for the top surface of the reinforcement beam to completely fit the bottom of the cover plate, this solution uses the reserved gap and fills the gap with bridge bearing grouting material. This solution ensures that the reinforcement beam can effectively support and reinforce the cover plate, thereby improving the stability of the overall structure after reinforcement.

[0022] Preferably, the cementitious material is epoxy concrete. Compared with ordinary concrete, the epoxy concrete has a fast curing speed, which can shorten the construction period and improve the construction efficiency. At the same time, the epoxy concrete has a lower shrinkage rate, which can reduce cracks caused by volume shrinkage, which helps to maintain the integrity and stability of the filling structure.

[0023] In a second aspect, the present invention provides a construction method for reinforcing a cover culvert, comprising the following steps:

[0024] S1: Temporary support of the culvert cover;

[0025] S2: Performing slotting operations on the culvert platform, including digging out the first vertical slot and the second vertical slot;

[0026] S3: installing the two ends of the reinforcement beam to the tops of the first vertical groove and the second vertical groove which are opposite to each other respectively;

[0027] S4: filling the first vertical groove and the second vertical groove with cementitious material;

[0028] S5: After the cementitious material reaches a predetermined strength, the temporary support is removed to complete the reinforcement.

[0029] The present invention provides a construction method for reinforcing a cover plate culvert. In the step S2, after the grooving operation is performed on the culvert platform, this step will reduce the supporting effect of the culvert platform on the two ends of the cover plate, thereby causing the bearing capacity of the cover plate to decrease. Therefore, in the step S1, the cover plate is reinforced in advance through temporary support to ensure that the cover plate has sufficient bearing capacity, thereby ensuring smooth traffic on the road above. In addition, during the installation of the reinforcement beam, no interference is caused to the road traffic above the cover plate. This solution effectively avoids the situation where the road traffic above the cover plate is interrupted or traffic control is required due to construction, thereby reducing the impact on the road traffic above.

[0030] The temporary support may be a steel pipe scaffold support or a steel structure support.

[0031] Preferably, the step S3 specifically includes the following steps:

[0032] S31: at the entrance of the culvert, placing the length direction of the reinforcement beam parallel to the cross section of the culvert, and at the same time, forming a certain inclination angle between the length direction of the reinforcement beam and the horizontal plane, so that the reinforcement beam can be located within the contour line of the culvert;

[0033] S32: translating the reinforcement beam along the length direction of the culvert to below the installation position;

[0034] S33: embedding the higher end of the reinforcing beam into the top of the first vertical groove, and embedding the lower end of the reinforcing beam into the bottom of the second vertical groove;

[0035] S34: The higher end of the reinforcement beam remains in place, and the lower end of the reinforcement beam is moved upward, so that the two ends of the reinforcement beam are respectively installed on the tops of the first vertical groove and the second vertical groove that are opposite to each other.

[0036] This step enables the reinforcement beam to be quickly installed to a predetermined position, thereby improving construction efficiency and shortening the construction period.

[0037] Preferably, step S3 further includes reserving a gap of 2 cm to 3 cm between the bottom of the reinforcement beam and the cover plate, and filling the gap with bridge support grouting material. This step ensures that the reinforcement beam can effectively support and reinforce the cover plate, thereby improving the stress stability of the overall structure after reinforcement.

[0038] Preferably, in step S1, the temporary support includes columns, beams and steel plates, and temporarily supporting the cover plate includes the following steps:

[0039] S11: Fix the bottom of the column to the bottom plate of the culvert;

[0040] S12: Installing the crossbeam to the top of the column;

[0041] S13: inserting a steel plate between the cross beam and the cover plate to complete temporary support of the cover plate.

[0042] The purpose of this step is to provide redundant support for the damaged cover plate by fully contacting and exchanging forces with the bottom of the cover plate through the temporary support system, so as to avoid malicious incidents on the road above due to sudden breakage of the cover plate. The function of the steel plate is to make the bottom of the cover plate evenly and closely attached to the top of the beam, thereby improving the effect of temporary support. Compared with the steel pipe scaffolding support system, this solution adopts a steel structure support system, which has a higher bearing capacity and occupies less space, reducing the impact on subsequent reinforcement.

[0043] Compared with the prior art, the present invention has the following beneficial effects:

[0044] 1. The present invention provides a cover plate culvert with a reinforcement structure. By installing the reinforcement beam at the bottom of the cover plate, the cover plate only needs to be reinforced inside the culvert without excavating and replacing the cover plate, and grouting the roadbed filler above the cover plate. This method effectively avoids the situation where the highway traffic above the cover plate is interrupted or traffic control is required due to construction, thereby achieving the goal of reducing the impact on the highway traffic above.

[0045] 2. The present invention provides a construction method for reinforcing a cover culvert. By arranging temporary supports and the reinforcing beam at the bottom of the cover, it effectively avoids interruption of road traffic above the cover or the need for traffic control due to construction, thereby reducing the impact on the road traffic above. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 A schematic diagram of a cover culvert with a reinforced structure.

[0047] Figure 2 for Figure 1 Section view along the AA cutting line.

[0048] Figure 3 It is a schematic diagram of the plan layout of the first vertical groove and the second vertical groove.

[0049] Figure 4 for Figure 3Schematic diagram of the BB section.

[0050] Figure 5 for Figure 3 Schematic diagram of the CC section.

[0051] Figure 6 Schematic diagram of the installation process of the reinforced beam.

[0052] Figure 7 Schematic diagram of the temporary support plan.

[0053] Figure 8 for Figure 1 Section view along the DD cutting line.

[0054] Markings in the figure:

[0055] 1- Cover plate,

[0056] 2-Culvert platform,

[0057] 3- beam,

[0058] 4- Column,

[0059] 5- Steel plate,

[0060] 6-Culvert bottom plate,

[0061] 7- Reinforcement beam,

[0062] 8- First vertical slot,

[0063] 9- Second vertical slot,

[0064] 10- Cementitious materials,

[0065] 11- Pad,

[0066] 12- Gap. DETAILED DESCRIPTION

[0067] The present invention is further described in detail below in conjunction with specific embodiments. However, this should not be understood as the scope of the above subject matter of the present invention being limited to the following embodiments, and all technologies realized based on the content of the present invention belong to the scope of the present invention.

[0068] Unless otherwise specified, in the description of the specific embodiments of the present invention, the terms indicating the orientation or position relationship such as "up", "down", "left", "right", "center", "inside", "outside", etc. are all expressions based on the orientation or position relationship shown in the drawings, or are the orientation or position relationship when the invented product / equipment / device is usually used. These terms of orientation or position relationship are only for the convenience of describing the scheme of the present invention or simplifying the description in the specific embodiments, so as to facilitate the technicians to quickly understand the scheme, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific position relationship, and therefore cannot be understood as a limitation on the present invention.

[0069] In addition, if the terms "horizontal", "vertical", "overhanging", "parallel" and the like appear, it does not mean that the corresponding devices / components / elements are required to be absolutely horizontal or vertical or overhanging or parallel, but may be slightly tilted or have deviations. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but may be slightly tilted. Alternatively, it can be simplified to mean that the corresponding devices / components / elements are set in directions such as "horizontal", "vertical", "overhanging", "parallel", etc., and can have an error / deviation of ±10% relative to the corresponding direction setting, more preferably an error / deviation within ±8%, more preferably an error / deviation within ±6%, more preferably an error / deviation within ±5%, and more preferably an error / deviation within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its role in the scheme of the present invention.

[0070] In addition, the expressions “first”, “second”, “third”, etc., which appear in the terms, are merely used to distinguish the description of the same or similar components and should not be understood as emphasizing or implying the relative importance of specific components.

[0071] In addition, in the description of the embodiments of the present invention, "several", "plurality" and "a number" represent at least 2. It can be any number such as 2, 3, 4, 5, 6, 7, 8, 9, and even more than 9.

[0072] In addition, in the description of the technical solution of the present invention, unless otherwise clearly specified / defined / restricted, the terms "set", "install", "connect", "connected", "provided with", "laid", and "arranged" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection, and can be welding, riveting, bolting, threading, and other commonly used connection means in the field. This connection can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection, or an indirect connection through an intermediate medium, and it can be the internal connection of two elements.

[0073] Example 1

[0074] like Figure 1 and Figure 2 As shown, a cover plate culvert with a reinforcement structure includes a cover plate 1, a culvert platform 2 and a reinforcement beam 7.

[0075] The cover plate 1 is located at the top of the culvert, and the two ends of the cover plate 1 are respectively supported on the culvert platform 2 on both sides of the culvert.

[0076] The culvert platform 2 is located on both sides of the culvert, and the first vertical groove 8 and the second vertical groove 9 are respectively opened at opposite positions on the culvert platforms 2 on both sides, and the top surfaces of the first vertical groove 8 and the second vertical groove 9 are both located at the bottom of the cover plate 1. The relative position means that the line connecting the positions of the two culvert platforms 2 on the left and right sides is exactly the width direction of the culvert.

[0077] The reinforcement beam 7 is arranged horizontally along the width direction of the culvert, and the two ends of the reinforcement beam 7 are respectively fixed in the first vertical groove 8 and the second vertical groove 9, the top surface of the reinforcement beam 7 is connected to the bottom of the cover plate 1, and the first vertical groove 8 and the second vertical groove 9 are filled with cementitious material 10.

[0078] In an optional embodiment, the groove body height of the first vertical groove 8 can be smaller than the groove body height of the second vertical groove 9, and the straight-line distance between the groove top surface of the first vertical groove 8 and the groove bottom surface of the second vertical groove 9 opposite to the first vertical groove 8 is equal to the sum of the length of the reinforcement beam 7 plus the height of the reinforcement beam 7.

[0079] Specifically, the clearance width of the culvert is 3600mm, the clearance height is 2730mm, and the length of the cover plate 1 is 4000mm. The length of the reinforcement beam 7 is 4000mm, the cross-sectional width is 150mm, and the cross-sectional height is 200mm. According to the size of the reinforcement beam 7, the straight-line distance between the top surface of the first vertical groove 8 and the bottom surface of the second vertical groove 9 opposite to the first vertical groove 8 is calculated to be 4200mm. According to the size of the culvert, the excavation heights of the first vertical groove 8 and the second vertical groove 9 can be calculated to be 400mm and 1700mm respectively. Figure 4 and Figure 5 As shown. The slot depth of the first vertical slot 8 and the second vertical slot 9 are both 200 mm, and the slot width of the first vertical slot 8 and the second vertical slot 9 are both 200 mm. The slot depth is along the width direction of the culvert, and the slot width is along the length direction of the culvert.

[0080] In an optional embodiment, on the culvert platform 2 on the same side, the first vertical grooves 8 and the second vertical grooves 9 can be arranged alternately, such as Figures 3 to 5On the culvert platform 2 on one side, the spacing between the adjacent first vertical grooves 8 and the second vertical grooves 9 can be 100mm to 500mm, and the specific spacing is determined according to the culvert repair design plan, and the specific spacing can be 100mm, 200mm, 250mm, 300mm, 400mm, 450mm, 500mm.

[0081] In an optional embodiment, each cover plate 1 may be provided with the same number of first vertical grooves 8 and second vertical grooves 9 at the bottom of the same side. Figure 3 As shown, each cover plate 1 may be provided with a first vertical groove 8 and a second vertical groove 9 at the bottom of the same side. For example, the width of the cover plate 1 is 750 mm, and the distance between the first vertical groove 8 and the second vertical groove 9 at the bottom of the same side of the cover plate 1 is 250 mm.

[0082] In an optional embodiment, a gap 12 of 2 cm to 3 cm may be provided between the reinforcement beam 7 and the cover plate 1, and the gap 12 is filled with a bridge bearing grouting material. The specific size of the gap 12 may be 2 cm, 2.2 cm, 2.4 cm, 2.5 cm, 2.6 cm, 2.8 cm, or 3.0 cm, and the gap 12 is filled with a bridge bearing grouting material. The bridge bearing grouting material may specifically be an epoxy resin-based bridge bearing grouting material.

[0083] In an optional embodiment, the cementitious material 10 may be epoxy concrete.

[0084] In an optional implementation, in step S3, the reinforcement beam 7 may be HM steel.

[0085] In an optional embodiment, pads 11 may be provided on the bottom surfaces of both ends of the reinforcement beam 7. The edges of the contact surfaces between the top of the cementitious material 10 and the pads 11 are chamfered. The pads 11 play a supporting role at both ends of the reinforcement beam 7 to enhance the stability of the reinforcement beam 7; the pads 11 can also prevent the reinforcement beam 7 from directly rubbing against the cementitious material 10 filled below, thereby reducing the local stress concentration at the stress-bearing positions at both ends of the reinforcement beam 7. The chamfer is provided to avoid edge gnawing between the pads 11 and the cementitious material 10 filled.

[0086] The material of the backing plate 11 can be steel, and the size of the backing plate 11 is 200mm×150mm×10mm. Figure 2 The chamfer is set to a 20mm×20mm chamfer using a template and is integrally formed when the cementitious material 10 is filled.

[0087] Example 2

[0088] A construction method for reinforcing a cover culvert comprises the following steps:

[0089] S1: Temporarily support the cover plate 1 of the culvert.

[0090] S2: Performing a slotting operation on the culvert platform 2, including digging out a first vertical slot 8 and a second vertical slot 9.

[0091] S3: Install the two ends of the reinforcement beam 7 to the tops of the first vertical groove 8 and the second vertical groove 9 which are opposite to each other.

[0092] S4: Fill the first vertical groove 8 and the second vertical groove 9 with cementitious material 10 .

[0093] S5: After the cementitious material 10 reaches a predetermined strength, the temporary support is removed to complete the reinforcement. The predetermined strength may be the design strength of the cementitious material 10 .

[0094] In an optional implementation manner, the step S3 may specifically include the following steps:

[0095] S31: At the entrance of the culvert, the length direction of the reinforcement beam 7 is placed parallel to the cross section of the culvert, and at the same time, the length direction of the reinforcement beam 7 forms a certain inclination angle with the horizontal plane, so that the reinforcement beam 7 can be located within the contour line of the culvert, such as Figure 6 shown.

[0096] S32: Translate the reinforcement beam 7 along the length direction of the culvert to below the installation position.

[0097] S33: embedding the higher end of the reinforcing beam 7 into the top of the first vertical groove 8 , and embedding the lower end of the reinforcing beam 7 into the bottom of the second vertical groove 9 .

[0098] S34: The higher end of the reinforcement beam 7 remains in place, and the lower end of the reinforcement beam 7 is moved upward, so that the two ends of the reinforcement beam 7 are respectively installed on the tops of the first vertical groove 8 and the second vertical groove 9 that are opposite to each other.

[0099] In an optional implementation manner, the step S3 may further include reserving a gap 12 of 2 cm to 3 cm at the bottom of the reinforcement beam 7 and the cover plate 1, and the gap 12 is filled with bridge bearing grouting material.

[0100] In an optional implementation manner, in the step S1, the temporary support may include a column 4, a beam 3 and a steel plate 5, and temporarily supporting the cover plate 1 may include the following steps:

[0101] S11: Fix the bottom of the column 4 to the culvert bottom plate 6.

[0102] S12: Install the beam 3 to the top of the column 4.

[0103] S13: insert the steel plate 5 between the cross beam 3 and the cover plate 1 to complete the temporary support of the cover plate 1.

[0104] Specifically, Figure 7 and Figure 8 As shown, each temporary support includes two columns 4, the height of the column 4 is 2500mm, and a 400mm×400mm×10mm steel support is welded at the bottom of the column 4, and the steel support is connected to the culvert bottom plate 6 by M12 anchor bolts. The columns 4 on the left and right sides are 700mm away from their adjacent culvert platform 2. The spacing between the columns 4 on the left and right sides is 1800mm. The columns 4 are made of HM steel with a cross section of 200mm×150mm. The top plates of the two columns 4 are connected to the cross beam 3, the length of the cross beam 3 is 2600mm, and the cross beam 3 is also made of HM steel with a cross section of 200mm×150mm. There is a steel plate 5 between the cross beam 3 and the cover plate 1, and the steel plate 5 is 2600mm long, 400mm wide, and 20mm thick. When the steel plate 5 is installed, its length direction is consistent with the length direction of the beam 3, and both ends of the steel plate 5 are aligned with the left and right ends of the beam 3. The spacing between two adjacent temporary supports is 400mm to 800mm, and the specific spacing can be 400mm, 450mm, 500mm, 550mm, 600mm, 650mm, 700mm, 750mm, 800mm.

[0105] In an optional embodiment, in step S4, before filling the cementitious material 10, the first vertical groove 8 and the second vertical groove 9 may be subjected to dust removal and drying treatment. Specifically, a blower may be used to remove dust and dry the opened grooves. Dust and humid conditions may affect the adhesion between the cementitious material 10 and the groove wall. Through dust removal and drying treatment, close contact between the cementitious material 10 and the groove wall can be ensured, thereby improving the overall stability and durability of the filling structure.

[0106] When reinforcement construction is required for multiple consecutively arranged cover plates 1, the following guidelines should be followed: For the culvert platform 2 below the same side of a single cover plate 1, if multiple vertical grooves need to be opened, it must be ensured that two adjacent vertical grooves are not excavated at the same time. Specifically, it is necessary to wait until the first vertical groove is filled and reaches the preset strength standard before the excavation of the adjacent vertical grooves can be started. Similarly, for the culvert platform 2 below the same side of two adjacent cover plates 1, the excavation of their vertical grooves shall not be carried out at the same time. The purpose of this construction plan is to prevent the culvert platform 2 from being excessively weakened in specific areas, thereby improving the safety of the entire reinforcement operation.

[0107] Before adopting the restoration method described in this application, disease detection and data collection should also be completed.

[0108] The disease detection refers to the disease detection of the plate body diseased parts of the cover plate 1, which should include the plate body crack location, crack development trend, plate body deflection, and the disease condition and strength data of the culvert platform 2.

[0109] The data collection refers to the data collection of existing roads and culverts, which must include the structural dimensions of the culvert and the filling conditions behind the culvert platform 2, and the filling conditions of the highway roadbed above the cover plate 1. If the highway is expanded, it must also include information such as the highway roadbed cross-section diagram before and after the expansion.

[0110] The present invention discloses a cover plate culvert with a reinforced structure and a construction method thereof. During construction, there is no need to control the traffic on the road above, which can reduce the impact on the traffic on the road above. In addition, by setting a reinforcing beam 7 at the bottom of the cover plate 1, the damaged cover plate 1 can be effectively reinforced. The treatment effect is intuitive and highly reliable. It can effectively treat defects in culvert cover plates 1 that are damaged under high fill in similar highway projects. At the same time, the method does not require replacement of the original damaged cover plate 1, thereby significantly shortening the construction period and greatly reducing the risks during the construction process.

[0111] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cover culvert with a reinforced structure, characterized in that: include: A cover plate (1), the cover plate (1) being located at the top of the culvert; A culvert platform (2), wherein the culvert platform (2) is located on both sides of the culvert, and a first vertical groove (8) and a second vertical groove (9) are respectively provided at opposite positions on the culvert platform (2) on both sides, and the top surfaces of the first vertical groove (8) and the second vertical groove (9) are both located at the bottom of the cover plate (1); A reinforcing beam (7), wherein the reinforcing beam (7) is horizontally arranged along the width direction of the culvert, the two ends of the reinforcing beam (7) are respectively fixed in the first vertical groove (8) and the second vertical groove (9), the top surface of the reinforcing beam (7) is connected to the bottom of the cover plate (1), and the first vertical groove (8) and the second vertical groove (9) are both filled with cementitious material (10).

2. A cover culvert with a reinforced structure according to claim 1, characterized in that: The height of the first vertical groove (8) is less than the height of the second vertical groove (9), and the straight-line distance between the groove top surface of the first vertical groove (8) and the groove bottom surface of the second vertical groove (9) opposite to the first vertical groove (8) is equal to the sum of the length of the reinforcing beam (7) and the height of the reinforcing beam (7).

3. The cover culvert with a reinforced structure according to claim 2, characterized in that: On the culvert platform (2) on the same side, the first vertical grooves (8) and the second vertical grooves (9) are arranged alternately.

4. The cover culvert with a reinforced structure according to claim 3, characterized in that: Each of the cover plates (1) is provided with the same number of the first vertical grooves (8) and the second vertical grooves (9) at the bottom of the same side.

5. A cover culvert with a reinforced structure according to any one of claims 1 to 4, characterized in that: A gap (12) of 2 cm to 3 cm is provided between the reinforcement beam (7) and the cover plate (1), and the gap (12) is filled with bridge bearing grouting material.

6. The cover culvert with a reinforced structure according to claim 5, characterized in that: The cementitious material (10) is epoxy concrete.

7. A construction method for reinforcing a cover culvert, characterized in that: The method for applying a cover plate culvert with a reinforced structure as claimed in claim 1 comprises the following steps: S1: Temporarily support the cover plate (1) of the culvert; S2: performing a slotting operation on the culvert platform (2), including excavating a first vertical slot (8) and a second vertical slot (9); S3: installing the two ends of the reinforcing beam (7) to the tops of the first vertical groove (8) and the second vertical groove (9) which are located opposite to each other respectively; S4: filling the first vertical groove (8) and the second vertical groove (9) with a cementitious material (10); S5: After the cementitious material (10) reaches a predetermined strength, the temporary support is removed to complete the reinforcement.

8. A construction method for reinforcing a cover culvert according to claim 7, characterized in that: The step S3 specifically comprises the following steps: S31: at the entrance of the culvert, the length direction of the reinforcement beam (7) is placed parallel to the cross section of the culvert, and at the same time, the length direction of the reinforcement beam (7) forms a certain inclination angle with the horizontal plane, so that the reinforcement beam (7) can be located within the contour line of the culvert; S32: translating the reinforcement beam (7) along the length direction of the culvert to below the installation position; S33: embedding the higher end of the reinforcing beam (7) into the top of the first vertical groove (8), and embedding the lower end of the reinforcing beam (7) into the bottom of the second vertical groove (9); S34: The higher end of the reinforcing beam (7) remains in place, and the lower end of the reinforcing beam (7) is moved upward, so that the two ends of the reinforcing beam (7) are respectively installed on the tops of the first vertical groove (8) and the second vertical groove (9) that are located opposite to each other.

9. A construction method for reinforcing a cover culvert according to claim 7, characterized in that: The step S3 also includes reserving a gap (12) of 2 cm to 3 cm at the bottom of the reinforcement beam (7) and the cover plate (1), and the gap (12) is filled with bridge bearing grouting material.

10. A construction method for reinforcing a cover culvert according to claim 7, characterized in that: In the step S1, the temporary support comprises a column (4), a beam (3) and a steel plate (5), and temporarily supporting the cover plate (1) comprises the following steps: S11: Fixing the bottom of the column (4) to the culvert bottom plate (6); S12: Installing the crossbeam (3) to the top of the column (4); S13: inserting a steel plate (5) between the crossbeam (3) and the cover plate (1) to complete temporary support of the cover plate (1).

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