A precast slab pavement

Abstract

The utility model belongs to the technical field of pavement structure, disclose a kind of precast slab pavement, including precast slab, the precast slab includes first precast slab and second precast slab, the first precast slab and second precast slab are mutually clamped, and the end portion of the first precast slab and second precast slab is mutually matched with step;The step of the first precast slab and the step of second precast slab are all set with the transverse connection reserved hole corresponding in position. By using up and down dislocation and reserved hole lap joint, avoid moisture and dust into concrete precast board inside. Force is transmitted between longitudinal board and board by transverse joint, so that pavement forms a whole. By transverse connection reserved hole and step, prevent the relative displacement between different boards in horizontal direction.

Description

Technical Field

[0001] This utility model belongs to the field of road structure technology, specifically relating to a precast slab road surface. Background Technology

[0002] Precast concrete pavement, as a type of pavement structure that is efficient, easy to construct, and easy to maintain, has been widely used in road construction both domestically and internationally due to its advantages such as fast construction speed, low maintenance cost, and long service life.

[0003] Traditional precast concrete slab pavement uses various connection methods, including splicing slabs directly together. However, direct splicing between slabs cannot solve the problems of lateral force transfer and longitudinal tensile strength in precast concrete pavements. Furthermore, because the joints are constantly exposed, they are prone to water and dust accumulation. Once moisture and dust penetrate the interior of the precast concrete slabs, they corrode and damage the internal structure, further shortening the pavement's service life. Long-term erosion reduces the strength of the precast concrete slabs, leading to premature pavement damage and increased road maintenance costs.

[0004] Chinese patent publication number CN221545172U, entitled "A Prefabricated Reinforced Concrete Temporary Pavement Structure," describes a structure comprising a reinforced concrete surface layer and a graded crushed stone base layer. The reinforced concrete surface layer is composed of precast slabs, each made of concrete and transverse and longitudinal reinforcing bars. The key feature is that the ends of the precast slabs are spaced apart with protrusions and grooves, and adjacent slabs are interlocked by inserting the protrusions into the grooves, forming a continuous connecting joint filled with asphalt sand. A transverse embedded steel pipe is positioned in the center of the protrusion, and two precast slabs are connected by hinged reinforcing bars passing through the embedded steel pipe. However, this patent application cannot prevent moisture and dust from entering the interior of the precast concrete slabs. Utility Model Content

[0005] To overcome the problems existing in the prior art, the purpose of this utility model is to provide a precast concrete slab pavement that prevents moisture and dust from entering the interior of the precast concrete slabs by employing staggered joints and pre-drilled holes. Force is transferred between the longitudinal slabs through transverse joints, forming a unified pavement. Transverse connections with pre-drilled holes and steps prevent relative displacement between laterally dissimilar slabs.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A precast pavement includes precast slabs, each precast slab comprising a first precast slab and a second precast slab, the first and second precast slabs being interlocked with each other, and the interlocking ends of the first and second precast slabs having matching steps; both the steps of the first and second precast slabs have corresponding transverse connection reserved holes.

[0007] Optionally, the transverse connection reserved holes of the first precast slab and the transverse connection reserved holes of the second precast slab are connected by steel bars.

[0008] Optionally, a road surface groove is formed on the adjacent side of the step-shaped edge of the first precast slab; a road surface groove is formed on the adjacent side of the step-shaped edge of the second precast slab.

[0009] Optionally, the road surface grooves of the first precast slab and the road surface grooves of the second precast slab are connected by U-shaped steel bars.

[0010] Optionally, a longitudinal connection reserved hole is provided at the end of the road surface groove away from the precast slab, and the axis of the longitudinal connection reserved hole is perpendicular to the top surface of the precast slab.

[0011] Optionally, ceiling pre-reserved holes are provided on the top of both the first precast panel and the top of the second precast panel.

[0012] Optionally, the number of ceiling-mounted pre-drilled holes for both the first and second prefabricated panels is four.

[0013] Optionally, the steps of the first precast slab and the steps of the second precast slab are both sloping steps.

[0014] Optionally, both ends of the second precast slab have steps that match the steps of the first precast slab.

[0015] Optionally, both ends of the first precast slab have steps that match the steps of the second precast slab.

[0016] Compared with the prior art, the present invention has the following beneficial effects: This utility model's panel, through horizontal vertical misalignment and pre-drilled holes, can both transmit force and prevent longitudinal slippage of precast panels during vehicle movement. Force is transmitted between longitudinal panels via the horizontal joints, forming a unified road surface. The pre-drilled holes and steps in the lateral connection prevent relative displacement between different lateral panels.

[0017] This invention connects two precast concrete blocks laterally using U-shaped steel bars, preventing the possibility of relative displacement between the two precast concrete pavement blocks and preventing water from entering the pavement through pores and causing water damage. Attached Figure Description

[0018] The accompanying drawings described herein are for illustrative purposes only and are not intended to limit the scope of the present invention in any way. Furthermore, the shapes and proportions of the components in the drawings are merely schematic to aid in understanding the present invention and do not specifically limit the shapes and proportions of the components. In the drawings: Figure 1 This is a top view of the structure of an embodiment of the present utility model; Figure 2 This is a cross-sectional view of an embodiment of the present utility model; Figure 3 This is a perspective structural diagram of an embodiment of the present utility model; Among them, 1. Road surface grooving; 2. Longitudinal connection reserved hole; 3. Ceiling reserved hole; 4. Transverse connection reserved hole; 101. First precast panel; 102. Second precast panel. Detailed Implementation

[0019] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0020] Therefore, the following detailed description of embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention.

[0021] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] When an element is referred to as being "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only embodiments. The use of the term "horizontal" does not imply that the component is required to be absolutely horizontal, but rather that it may be slightly tilted. "Horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it may be slightly tilted.

[0023] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In the description of this utility model, it should be understood that the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or collections thereof.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise.

[0025] The present invention will now be described in detail with reference to the accompanying drawings.

[0026] This utility model discloses a precast pavement, comprising precast slabs, including a first precast slab 101 and a second precast slab 102, which are interlocked with each other, and the interlocking ends of the first precast slab 101 and the second precast slab 102 have matching steps; both the steps of the first precast slab 101 and the steps of the second precast slab 102 are provided with corresponding transverse connection reserved holes 4.

[0027] This utility model panel, through the horizontal staggering and pre-drilled holes of prefabricated panels, can both transmit force and prevent longitudinal slippage of the prefabricated panels during vehicle movement. Force is transmitted between the longitudinal panels via the horizontal joints, forming a unified road surface. The pre-drilled holes and steps in the lateral connection prevent relative displacement between different lateral panels.

[0028] Example 1 A precast pavement according to this embodiment includes precast slabs, each including a first precast slab 101 and a second precast slab 102. The first precast slab 101 and the second precast slab 102 are interlocked with each other, and the interlocking ends of the first precast slab 101 and the second precast slab 102 have matching steps. The steps of the first precast slab 101 and the steps of the second precast slab 102 are each provided with corresponding transverse connection reserved holes 4.

[0029] The transverse connection reserved hole 4 of the first precast panel 101 and the transverse connection reserved hole 4 of the second precast panel 102 are connected by steel bars.

[0030] Road surface grooves 1 are provided on the adjacent sides of the stepped edges of the first precast slab 101 and the second precast slab 102; that is, the edge of the precast slab with the road surface groove 1 and the edge with the stepped edge are adjacent edges. The road surface grooves 1 of the first precast slab 101 and the road surface grooves 1 of the second precast slab 102 are connected by U-shaped steel bars.

[0031] Optionally, road surface grooves 1 are formed on a pair of opposite edges of the first precast slab 101 and a pair of opposite edges of the second precast slab 102. Further, the number of road surface grooves 1 on one edge of each precast slab is two, which are used to connect with two adjacent precast slabs respectively.

[0032] Optionally, a longitudinal connection reserved hole 2 is provided at the end of the road surface groove 1 away from the precast slab. The axial direction of the longitudinal connection reserved hole 2 is perpendicular to the top surface of the precast slab. The end of the U-shaped steel bar is connected to a connecting steel bar perpendicular to the U-shaped steel bar. The connecting steel bar is inserted into the longitudinal connection reserved hole 2.

[0033] Both the top of the first precast slab 101 and the top of the second precast slab 102 have ceiling pre-reserved holes 3. The number of ceiling pre-reserved holes 3 in both the first precast slab 101 and the second precast slab 102 is four. The steps of the first precast slab 101 and the steps of the second precast slab 102 are both sloping steps.

[0034] Optionally, in this embodiment, both ends of the second prefabricated panel 102 have steps, and they are respectively engaged with the two first prefabricated panels 101. Both ends of the first prefabricated panel 101 have steps, which can be engaged with the two second prefabricated panels 102 respectively.

[0035] Optionally, in this embodiment, the prefabricated slab is a rectangular slab.

[0036] Furthermore, in this embodiment, the first prefabricated panel 101 and the second prefabricated panel 102 have the same side length. The side where the first prefabricated panel 101 engages with the second prefabricated panel 102 has the same side length as the side where the second prefabricated panel 102 engages with the first prefabricated panel 101. The two adjacent sides of the side where the first prefabricated panel 101 engages with the second prefabricated panel 102 have the same side length as the two adjacent sides of the side where the second prefabricated panel 102 engages with the first prefabricated panel 101.

[0037] Example 2 Optionally, in this embodiment, the number of road surface grooves 1 on one side of the precast slab is two, which are used to connect with two adjacent precast slabs respectively; and the distance between the two road surface grooves 1 on one side is 500mm.

[0038] Optionally, in this embodiment, the groove depth of the road surface groove 1 is 50mm and the groove length is 150mm.

[0039] Optionally, in this embodiment, the diameter of the longitudinal connection reserved hole 2 and the diameter of the transverse connection reserved hole 4 are both 30mm.

[0040] Optionally, in this embodiment, the horizontal projection length of the step of the first precast slab 101 is the same as the horizontal projection length of the step of the second precast slab 102. Further, in this embodiment, the horizontal projection length of the step of the first precast slab 101 and the horizontal projection length of the step of the second precast slab 102 are both 200mm.

[0041] Unless otherwise specified, the equipment components involved in the above embodiments are all conventional equipment components, and the structural settings, working methods or control methods involved are all conventional settings, working methods or control methods in the art unless otherwise specified.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A precast slab pavement, characterized in that, The system includes prefabricated panels, which include a first prefabricated panel (101) and a second prefabricated panel (102). The first prefabricated panel (101) and the second prefabricated panel (102) are interlocked with each other, and the interlocking ends of the first prefabricated panel (101) and the second prefabricated panel (102) have matching steps. The steps of the first prefabricated panel (101) and the steps of the second prefabricated panel (102) are provided with corresponding transverse connection reserved holes (4).

2. The precast slab pavement according to claim 1, characterized in that, The transverse connection reserved hole (4) of the first precast plate (101) and the transverse connection reserved hole (4) of the second precast plate (102) are connected by steel bars.

3. The precast slab pavement according to claim 1, characterized in that, A road surface groove (1) is provided on the adjacent side of the step side of the first precast slab (101); a road surface groove (1) is provided on the adjacent side of the step side of the second precast slab (102).

4. A precast slab pavement according to claim 3, characterized in that, The road surface groove (1) of the first precast slab (101) and the road surface groove (1) of the second precast slab (102) are connected by U-shaped steel bars.

5. A precast slab pavement according to claim 3, characterized in that, The road surface groove (1) has a longitudinal connection reserved hole (2) at the end away from the precast slab, and the axis of the longitudinal connection reserved hole (2) is perpendicular to the top surface of the precast slab.

6. A precast slab pavement according to claim 1, characterized in that, Ceiling pre-reserved holes (3) are provided on the top of the first prefabricated panel (101) and the top of the second prefabricated panel (102).

7. A precast slab pavement according to claim 6, characterized in that, The number of ceiling pre-reserved holes (3) in the first prefabricated panel (101) and the second prefabricated panel (102) is four.

8. A precast slab pavement according to claim 1, characterized in that, The steps of the first precast slab (101) and the steps of the second precast slab (102) are both sloping steps.

9. A precast slab pavement according to claim 1, characterized in that, Both ends of the second precast slab (102) have steps that match the steps of the first precast slab (101).

10. A precast slab pavement according to claim 1, characterized in that, Both ends of the first precast slab (101) have steps that match the steps of the second precast slab (102).

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