Prefabricated assembly type concrete pavement structure and construction method thereof

Abstract

The application relates to a prefabricated assembly type concrete pavement structure and a construction method thereof, and relates to the field of building construction road engineering technology, which comprises a prefabricated concrete pavement slab, which is prefabricated in advance according to pavement size in a factory; an end abutting mechanism, which is provided with a first moving channel in a central position in the prefabricated concrete pavement slab along a length direction or a width direction of the prefabricated concrete pavement slab, and is slidingly arranged in the first moving channel; when not subjected to external force, part of the end abutting mechanism is located outside the first moving channel; a side positioning mechanism, which is provided with a second moving channel perpendicular to the first moving channel in the prefabricated concrete pavement slab, and is movably arranged in the second moving channel; after the end abutting mechanism completely enters the first moving channel, the side positioning mechanism is automatically pushed out of the second moving channel by the end abutting mechanism and abuts against a road side wall. The application has the effect of improving the problem that the construction period of the concrete pavement is too long during construction.

Description

Technical Field

[0001] This application relates to the field of road construction technology, and in particular to a precast concrete pavement structure and its construction method. Background Technology

[0002] Currently, concrete pavement structure refers to road surfaces constructed using concrete materials. Concrete pavement is typically made from a mixture of raw materials such as cement, sand, aggregates, and water, and is formed through processes like pouring, curing, and smoothing to create a robust road surface. Therefore, concrete pavement structures offer advantages such as high durability, low maintenance costs, and good skid resistance, making them widely used in road construction.

[0003] Regarding the aforementioned technologies, the inventors believe that because concrete pavement construction requires multiple steps and has a long construction period, it would significantly impact the traffic environment if construction were carried out at key traffic arteries. Summary of the Invention

[0004] To address the issue of excessively long construction periods for concrete pavements, this application provides a precast assembled concrete pavement structure and its construction method.

[0005] This application provides a precast assembled concrete pavement structure using the following technical solution:

[0006] A precast concrete pavement structure, comprising:

[0007] Precast concrete pavement slabs are prefabricated in a factory according to the pavement dimensions.

[0008] An end-abutment mechanism is provided with a first moving channel at the center position of the precast concrete pavement slab along the length or width direction of the precast concrete pavement slab, and the end-abutment mechanism is slidably disposed within the first moving channel; when not subjected to external force, part of the end-abutment mechanism is located outside the first moving channel;

[0009] The side positioning mechanism has a second moving channel that is perpendicular to and connected to the first moving channel in the precast concrete pavement slab. The side positioning mechanism is movably located in the second moving channel. After the end abutment mechanism enters the first moving channel, the side positioning mechanism is automatically pushed out of the second moving channel by the end abutment mechanism and abuts against the road side wall.

[0010] Preferably, the end abutment mechanism of the precast concrete pavement slab laid at the initial end of the road surface abuts against the end wall of the road surface to be laid, while the end abutment mechanisms of the remaining precast concrete pavement slabs abut against the adjacent precast concrete pavement slabs.

[0011] Preferably, the end abutment mechanism includes:

[0012] The moving extrusion component is slidably positioned within the first moving channel;

[0013] An elastic energy storage component is disposed within a first moving channel, and the moving extrusion component drives the elastic energy storage component to store elastic force after moving into the first moving channel.

[0014] A blocking component is detachably installed in the first moving channel and is used to block the movement of the elastic energy storage component and keep the elastic energy storage component in a compressed elastic state.

[0015] After the moving extrusion component enters the first moving channel, the elastic energy storage component stores elastic force. At this time, the blocking component is disassembled, and the elastic energy storage component quickly releases the elastic force, pushing the side positioning mechanism out of the second moving channel and abutting against the road sidewall.

[0016] Preferably, the movable extrusion assembly includes a movable rod, which is slidably disposed within the first movable channel and close to the opening of the first movable channel, and the cross-sectional size of the movable rod matches the opening size of the first movable channel.

[0017] Preferably, the elastic energy storage component includes:

[0018] The extrusion plate is used to abut against the end of the moving rod;

[0019] The push rod is used to abut against the blocking assembly;

[0020] The first spring is connected between the extrusion plate and the ejector rod.

[0021] Preferably, the blocking component includes:

[0022] The blocking plate has a blocking slot inside the precast concrete pavement panel. The blocking slot is perpendicularly connected to the first moving channel. The blocking plate is inserted into the blocking slot. The pushing rod abuts against the surface of the blocking plate when the blocking plate is inserted into the blocking slot.

[0023] The lifting ring, installed on top of the baffle, is used for engaging the hooks of external lifting devices.

[0024] Preferably, the side positioning mechanism includes:

[0025] The positioning rod is slidably inserted into the second moving channel;

[0026] The second spring is disposed between the positioning rod and the second moving channel, and always has the tendency to push the positioning rod into the first moving channel. The elastic force of the second spring is less than that of the first spring.

[0027] The positioning rod has an abutting inclined surface at its end near the first moving channel, and a pushing inclined surface is provided between the side wall and end of the pushing rod. The pushing inclined surface and the abutting inclined surface fit together and slide against each other.

[0028] Preferably, a shallow groove is provided at the end of the precast concrete pavement panel away from the first moving channel, and the shallow groove is used for inserting the end of the moving rod in the adjacent precast concrete pavement panel.

[0029] Preferably, the end of the positioning rod away from the first moving channel is provided with a plurality of insertion screws.

[0030] This application also provides a construction method for a precast concrete pavement structure, including the following steps:

[0031] Prefabrication steps: Precast concrete pavement slabs are prefabricated in the factory according to the required pavement dimensions;

[0032] Positioning steps: First, place the first precast concrete pavement slab at the end of the road surface to be constructed, so that the end of the first precast concrete pavement slab abuts against the end wall of the road surface, thereby pre-positioning the first precast concrete pavement slab, and then fully insert the end abutment mechanism into the first moving channel.

[0033] Fixing steps: After the end abutment mechanism is fully inserted into the first moving channel, the side positioning mechanism automatically moves out from the second moving channel and abuts against the road side wall. At this time, the position of the first precast concrete road panel is completely fixed.

[0034] Connection steps: Align the second precast concrete pavement panel with the first precast concrete pavement panel and place it inside the construction pavement. Place the end abutment mechanism against the end of the first precast concrete pavement panel, so that the side positioning mechanism inside the second precast concrete pavement panel can position the second precast concrete pavement panel.

[0035] Repeat the steps: Lay out all the precast concrete pavement slabs in sequence according to the connection steps;

[0036] Pouring steps: Finally, concrete is poured into the gaps between two adjacent precast concrete pavement slabs and around the perimeter, connecting all the precast concrete pavement slabs and solidifying them into a single pavement.

[0037] In summary, this application includes at least one of the following beneficial technical effects:

[0038] By cooperating with the end abutment mechanism and the side positioning mechanism, each precast concrete pavement panel installed in the construction road surface can be positioned, and after positioning, all the precast concrete pavement panels can form a whole road. Therefore, the design of this application can greatly increase construction efficiency, reduce construction time, and eliminate the need for on-site pavement pouring. Road paving can be achieved by directly positioning and installing the precast panels. Attached Figure Description

[0039] Figure 1 This is a schematic diagram of the installation structure inside the road surface groove according to an embodiment of this application;

[0040] Figure 2 This is a schematic diagram of the connection of precast concrete pavement panels according to an embodiment of this application;

[0041] Figure 3 This is a top sectional view of the connection of the precast concrete pavement slab according to an embodiment of this application.

[0042] In the diagram, 1. Precast concrete pavement slab; 11. First moving channel; 12. Second moving channel; 13. Blocking slot; 14. Shallow groove; 2. End abutment mechanism; 3. Moving extrusion assembly; 31. Moving rod; 4. Elastic energy storage assembly; 41. Extrusion plate; 42. Pushing rod; 43. First spring; 5. Blocking assembly; 51. Blocking plate; 52. Lifting ring; 6. Side positioning mechanism; 61. Positioning rod; 62. Second spring; 7. Abutment slope; 8. Pushing slope; 9. Insertion screw. Detailed Implementation

[0043] The following is in conjunction with the appendix Figure 1 -Appendix Figure 3 This application will be described in further detail below.

[0044] A precast concrete pavement structure, referring to Figure 1 , 2The system includes a precast concrete pavement slab 1, an end abutment mechanism 2, and a side positioning mechanism 6. The precast concrete pavement slab 1 is prefabricated in a factory according to the road surface dimensions, and its size matches the size of the road groove to be excavated for the section of road to be paved. A first moving channel 11 is provided at the center of the precast concrete pavement slab 1 along its length or width. The first moving channel 11 is configured to be open at one end and closed at the other end. The end abutment mechanism 2 is slidably disposed within the first moving channel 11. A second moving channel 12 is provided within the precast concrete pavement slab 1, perpendicular to and connected to the first moving channel 11. In this embodiment, a second moving channel 12 is provided on each side of the first moving channel 11, and a side positioning mechanism 6 is provided in each second moving channel 12. After the end abutment mechanism 2 enters the first moving channel 11, the side positioning mechanism 6 is automatically pushed out from the second moving channel 12 by the end abutment mechanism 2 and abuts against the side wall of the road trough. After the side positioning mechanism 6 is removed, the position of the precast concrete road panel 1 will be fixed in the road trough. The adjacent precast concrete road panels 1 are both attached to each other and independently fixed, so that the entire concrete road surface can be laid quickly.

[0045] Reference Figure 1 , 2 The end abutment mechanism 2 of the precast concrete pavement slab 1 laid at the initial end of the road surface abuts against the end wall of the pavement to be laid, while the end abutment mechanisms 2 of the remaining precast concrete pavement slab 1 abut against the adjacent precast concrete pavement slab 1. This ensures that the end abutment mechanisms 2 of all precast concrete pavement slab 1 have an object to abut against, so that the end abutment mechanisms 2 on each precast concrete pavement slab 1 can eventually be squeezed into the interior of the first moving channel 11.

[0046] like Figure 2 , 3 As shown, the end abutment mechanism 2 includes a movable compression component 3, an elastic energy storage component 4, and a blocking component 5; the movable compression component 3 is slidably disposed within the first moving channel 11; the elastic energy storage component 4 is disposed within the first moving channel 11, and the movable compression component 3 drives the elastic energy storage component 4 to store elastic force after moving into the first moving channel 11; the blocking component 5 is detachably installed within the first moving channel 11, and the blocking component 5 is used to block the movement of the elastic energy storage component 4 and keep the elastic energy storage component 4 in a compressed elastic state; after the movable compression component 3 enters the first moving channel 11, the elastic energy storage component 4 stores elastic force, at which point the blocking component 5 is detached, and the elastic energy storage component 4 quickly releases its elastic force, pushing the side positioning mechanism 6 out of the second moving channel 12 and abutting against the side wall within the roadbed.

[0047] Before installing the precast concrete pavement slab 1 into place, the movable extrusion component 3 needs to be fully pressed against the first moving channel 11. At this time, the movable extrusion component 3 will compress the elastic energy storage component 4, causing the elastic energy storage component 4 to store elastic force. Then, the blocking component 5 is removed, and the compressed elastic energy storage component 4 will directly push the side positioning mechanism 6 under the action of elastic force, causing the side positioning mechanism 6 to partially move out of the second moving channel 12 and abut against the road side wall. The advantage of this setting is that the precast concrete pavement slab 1 can be fixed in its existing position after it has been installed into place, thus improving the installation stability of the precast concrete pavement slab 1.

[0048] Reference Figure 2 , 3 The movable extrusion assembly 3 includes a movable rod 31. The cross-sectional size of the movable rod 31 matches the opening size of the first movable channel 11. The movable rod 31 is slidably disposed within the first movable channel 11 and close to the opening of the first movable channel 11. In its natural state, a part of the movable rod 31 is located outside the first movable channel 11 and the other part is located inside the movable channel. The elastic energy storage assembly 4 includes a compression plate 41, a push rod 42, and a first spring 43. The compression plate 41 is slidably disposed inside the first moving channel 11 and is used to abut against the end of the moving rod 31. The push rod 42 is slidably disposed inside the first moving channel 11 and located on the side of the compression plate 41 away from the moving rod 31. The first spring 43 is connected between the compression plate 41 and the push rod 42. The blocking assembly 5 includes a blocking plate 51 and a lifting ring 52. A blocking slot 13 is provided in the precast concrete pavement slab 1. The upper end of the blocking slot 13 is open and is perpendicularly connected to the first moving channel 11. The blocking plate 51 is inserted into the blocking slot 13. The push rod 42 abuts against the plate surface of the blocking plate 51 when the blocking plate 51 is inserted into the blocking slot 13. The lifting ring 52 is installed on the top of the blocking plate 51 and is used for hooking the hook of an external lifting device.

[0049] Combination Figure 2 , 3The side positioning mechanism 6 includes a positioning rod 61 and a second spring 62. The positioning rod 61 is slidably inserted into the second moving channel 12, so the length direction of the positioning rod 61 is perpendicular to the length direction of the first moving channel 11. The second spring 62 is disposed between the positioning rod 61 and the second moving channel 12, that is, a side groove is provided on the side wall of the second moving channel 12, and an extension block is provided on the side wall of the positioning rod 61, which extends into the side groove. The second spring 62 is installed in the side groove along the length direction of the side groove, that is, one end of the second spring 62 is connected to the extension block, and the other end is connected to the inner end wall of the side groove. The second spring 62 always has the tendency to push the positioning rod 61 into the first moving channel 11, but the elastic force of the second spring 62 is less than the elastic force of the first spring 43. The positioning rod 61 has an abutment slope 7 on its end near the first moving channel 11, and a pushing slope 8 is provided between the side wall and end of the push rod 42. The pushing slope 8 and the abutment slope 7 are fitted together and slide against each other, that is, once the push rod 42 moves towards the push rod 42, the pushing slope 8 can directly and completely fit against the abutment slope 7. In this embodiment, in order to make the relative sliding between the pushing slope 8 and the abutment slope 7 smoother, both the pushing slope 8 and the abutment slope 7 are coated with polytetrafluoroethylene.

[0050] Combination Figure 2 , 3 To facilitate mutual positioning of two adjacent precast concrete pavement panels 1, a shallow groove 14 is provided at the end of the precast concrete pavement panel 1 away from the first moving channel 11. The shallow groove 14 is used for inserting the end of the moving rod 31 inside the adjacent precast concrete pavement panel 1. In addition, to facilitate stable positioning of the positioning rod 61, multiple insertion screws 9 are provided at the end of the positioning rod 61 away from the first moving channel 11. After the insertion screws 9 are inserted into the soil on the inner side wall of the groove, the current precast concrete pavement panel 1 can be positioned.

[0051] Therefore, the fixing process of the precast concrete pavement slab 1 is as follows: First, the precast concrete pavement slab 1 is pushed along the direction parallel to the length of the pavement, so that the end of the moving rod 31 abuts against the shallow groove 14 of the adjacent precast concrete pavement slab 1. Then, the precast concrete pavement slab 1 is continued to be pushed, so that the ends of the two adjacent precast concrete pavement slabs 1 are completely attached, and the moving rod 31 is completely abutted into the first moving channel 11. During the process of the moving rod 31 entering the first moving channel 11, the moving rod 31 will simultaneously push the extrusion plate 41, and the extrusion plate 41 will move closer to the push-out rod 42. Since the blocking plate 51 is inserted into the blocking slot 13, the position of the push-out rod 42 remains unchanged, thereby allowing... The first spring 43, located between the two, is gradually compressed, storing elastic force. Then, the lifting ring 52 is hooked by the lifting device, and the worker steps on the precast concrete pavement 1 to increase the weight, pulling the blocking plate 51 out of the blocking slot 13. At this time, the push rod 42 will be rapidly moved away from the moving rod 31 by the elastic force released by the first spring 43. During the movement, the pushing slope 8 will push against the slope 7, pushing the entire positioning rod 61 back into the second moving channel 12. The insertion screw 9 at the end of the positioning rod 61 will be removed from the second moving channel 12 and inserted into the soil on the inner side wall of the pavement groove, thereby achieving the positioning of the precast concrete pavement 1 and also achieving the effect of convenient positioning.

[0052] This application also discloses a construction method for a precast concrete pavement structure, including the following steps:

[0053] Prefabrication steps: Prefabricated concrete pavement panels 1 are prefabricated in the factory according to the required pavement dimensions;

[0054] Positioning steps: First, place the first precast concrete pavement slab 1 at the end of the road surface to be constructed, so that the end of the first precast concrete pavement slab 1 abuts against the end wall of the road surface, thereby pre-positioning the first precast concrete pavement slab 1, and then fully insert the end abutment mechanism 2 into the first moving channel 11.

[0055] Fixing steps: After the end abutment mechanism 2 is fully abutted into the first moving channel 11, the side positioning mechanism 6 automatically moves out from the second moving channel 12 and abuts against the road side wall. At this time, the position of the first precast concrete road panel 1 is completely fixed.

[0056] Connection steps: Align the second precast concrete pavement panel 1 with the first precast concrete pavement panel 1 and place it in the construction pavement. Place the end abutment mechanism 2 against the end of the first precast concrete pavement panel 1, so that the side positioning mechanism 6 inside the second precast concrete pavement panel 1 can position the second precast concrete pavement panel 1.

[0057] Repeat the steps: Lay out all the precast concrete pavement panels 1 in sequence according to the connection steps;

[0058] Pouring steps: Finally, concrete is poured into the gaps between two adjacent precast concrete pavement panels 1 and the surrounding gaps to connect all the precast concrete pavement panels 1 and solidify them into a whole pavement.

[0059] The implementation principle of this application embodiment is as follows: First, the first precast concrete pavement panel 1 is placed in the road groove near the edge of the road surface. Then, the first precast concrete pavement panel 1 is pushed towards the end of the road groove, allowing the moving rod 31 inside the first precast concrete pavement panel 1 to enter the first moving channel 11. Next, the blocking plate 51 on the first precast concrete pavement panel 1 is removed using a lifting device. At this time, the positioning rod 61 is squeezed, which automatically allows the insertion screw 9 at the end of the positioning rod 61 to be inserted into the soil on both inner side walls of the road groove. The position of the first precast concrete pavement panel 1 is then fixed and installed. Subsequently, the second precast concrete pavement panel 1 is placed in the road groove that is spaced apart from the first precast concrete pavement panel 1, so that the first... The movable rods 31 on the two precast concrete pavement panels 1 are aligned with the shallow groove 14 of the first precast concrete pavement panel 1. Then, the second precast concrete pavement panel 1 is pushed so that the remaining part of the movable rod 31 after it is inserted into the shallow groove 14 enters the first moving channel 11. This pushes the insertion screw 9 on the positioning rod 61 in the second precast concrete pavement panel 1 into the soil on the two inner side walls of the road groove. This process is repeated until all the precast concrete pavement panels 1 are installed. Finally, concrete is poured into the gaps between adjacent precast concrete pavement panels 1 and the surrounding gaps to connect all the precast concrete pavement panels 1 and solidify them into a single road surface. The construction is completed with a short construction period and high construction efficiency.

[0060] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. A precast concrete pavement structure, characterized in that, include: Precast concrete pavement slabs (1) are precast in the factory according to the pavement dimensions; The end abutment mechanism (2) has a first moving channel (11) opened at the center position of the precast concrete pavement panel (1) along the length or width direction of the precast concrete pavement panel (1), and the end abutment mechanism (2) is slidably disposed in the first moving channel (11); when not subjected to external force, part of the end abutment mechanism (2) is located outside the first moving channel (11); The side positioning mechanism (6) has a second moving channel (12) that is perpendicular to and connected to the first moving channel (11) in the precast concrete pavement (1). The side positioning mechanism (6) is movably disposed in the second moving channel (12). After the end abutment mechanism (2) enters the first moving channel (11), the side positioning mechanism (6) is automatically pushed out of the second moving channel (12) by the end abutment mechanism (2) and abuts against the side wall of the road. The end contact mechanism (2) includes: The moving extrusion component (3) is slidably positioned within the first moving channel (11); An elastic energy storage component (4) is disposed in the first moving channel (11), and the moving extrusion component (3) drives the elastic energy storage component (4) to store elastic force after moving into the first moving channel (11). The blocking component (5) is detachably installed in the first moving channel (11) and is used to block the movement of the elastic energy storage component (4) and keep the elastic energy storage component (4) in a compressed elastic state. After the moving extrusion assembly (3) enters the first moving channel (11), the elastic energy storage assembly (4) stores elastic force. At this time, the blocking assembly (5) is disassembled, and the elastic energy storage assembly (4) quickly releases the elastic force and pushes the side positioning mechanism (6) out of the second moving channel (12) and abuts against the road side wall. The movable extrusion assembly (3) includes a movable rod (31), which is slidably disposed in the first movable channel (11) and close to the opening of the first movable channel (11). The cross-sectional size of the movable rod (31) matches the opening size of the first movable channel (11). The elastic energy storage component (4) includes: A pressing plate (41) is used to abut against the end of the moving rod (31); The push rod (42) is used to abut against the blocking assembly (5); The first spring (43) is connected between the extrusion plate (41) and the push rod (42); The side positioning mechanism (6) includes: The positioning rod (61) is slidably inserted into the second moving channel (12); The second spring (62) is disposed between the positioning rod (61) and the second moving channel (12), and always has the tendency to push the positioning rod (61) into the first moving channel (11). The elastic force of the second spring (62) is less than that of the first spring (43). The positioning rod (61) has an abutting inclined surface (7) on its rod end near the first moving channel (11), and the push inclined surface (8) is provided between the side wall and the end of the push rod (42). The push inclined surface (8) and the abutting inclined surface (7) fit together and slide against each other.

2. The precast assembled concrete pavement structure according to claim 1, characterized in that, The end abutment mechanism (2) of the precast concrete pavement panel (1) laid at the initial end of the road surface abuts against the end wall of the road surface to be laid, while the end abutment mechanisms (2) of the remaining precast concrete pavement panels (1) abut against the adjacent precast concrete pavement panels (1).

3. A precast concrete pavement structure as defined in claim 1, wherein The blocking component (5) includes: The blocking plate (51) has a blocking slot (13) in the precast concrete pavement panel (1). The blocking slot (13) is vertically connected to the first moving channel (11). The blocking plate (51) is inserted into the blocking slot (13). The push rod (42) abuts against the surface of the blocking plate (51) when the blocking plate (51) is inserted into the blocking slot (13). A lifting ring (52) is installed on top of the baffle plate (51) for engaging with the hooks of external lifting devices.

4. The precast, fabricated concrete pavement structure of claim 1, wherein, The precast concrete pavement panel (1) has a shallow groove (14) at one end away from the first moving channel (11), and the shallow groove (14) is used for inserting the end of the moving rod (31) in the adjacent precast concrete pavement panel (1).

5. A precast concrete pavement structure as defined in claim 1, wherein The positioning rod (61) has a plurality of insertion screws (9) at the end away from the first moving channel (11).

6. A method of construction of a precast concrete pavement structure, implemented on the basis of the precast concrete pavement structure according to any one of claims 1-5, characterized in that, Includes the following steps: Prefabrication steps: Prefabricated concrete pavement panels are prefabricated in the factory according to the required pavement dimensions (1); Positioning steps: First, place the first precast concrete pavement panel (1) at the end of the road surface to be constructed, so that the end of the first precast concrete pavement panel (1) abuts against the end wall of the road surface, thereby pre-positioning the first precast concrete pavement panel (1), and then fully insert the end abutment mechanism (2) into the first moving channel (11). Fixing steps: After the end abutment mechanism (2) is fully abutted into the first moving channel (11), the side positioning mechanism (6) automatically moves out from the second moving channel (12) and abuts against the road side wall. At this time, the position of the first precast concrete road panel (1) is completely fixed. Connection steps: Align the second precast concrete pavement panel (1) with the first precast concrete pavement panel (1) and place it in the construction pavement. Place the end abutment mechanism (2) against the end of the first precast concrete pavement panel (1), so that the side positioning mechanism (6) inside the second precast concrete pavement panel (1) positions the second precast concrete pavement panel (1). Repeat the steps: Lay out all the precast concrete pavement panels (1) in sequence according to the connection steps; Pouring steps: Finally, concrete is poured into the gaps between two adjacent precast concrete pavement panels (1) and the surrounding gaps to connect all the precast concrete pavement panels (1) and solidify them into a whole pavement.

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