CN219117865U

CN219117865U - Pavement structure of municipal works pavement precast block

Info

Publication number: CN219117865U
Application number: CN202223591159.4U
Authority: CN
Inventors: 陈欣楠; 李少伟; 林恩; 吕佳伟
Original assignee: Guangdong Zhongkai Construction Engineering Co ltd
Current assignee: Jinzhongkai Construction Group Co ltd
Priority date: 2022-12-27
Filing date: 2022-12-27
Publication date: 2023-06-02
Anticipated expiration: 2032-12-27

Abstract

The pavement structure of the municipal engineering pavement precast block comprises a surface layer, a cement mortar bonding layer, a concrete base layer, a gravel layer and a rammed layer which are sequentially arranged from top to bottom, wherein the surface layer is a concrete precast block made of elastic concrete, the middle of the bottom of the concrete precast block is in an upward convex arch shape, and the middle of the concrete base layer is transversely penetrated with a high-strength concrete pad with a water collecting tank; the water leakage holes and the water grooves are formed in the base plate, so that rainwater can be collected and smoothly drained; the backing plate uses high-strength concrete to strengthen the structural stability; the technology effectively solves the problem of pavement depression and has a certain popularization and application prospect.

Description

Pavement structure of municipal works pavement precast block

Technical Field

The utility model relates to the field of municipal road construction, in particular to a pavement of a prefabricated block of a municipal engineering pavementStructure of the device。

Background

In municipal roads, pedestrian roads are important facilities convenient for pedestrians to pass through, and the pavement paved by the concrete precast blocks is widely applied because the pavement has the advantages of good anti-skid performance, various color combinations, convenient construction and the like, but the pavement of the concrete precast blocks is often cracked by heavy pressure of machinery or vehicles, rainwater permeates into a base layer along the cracks, damages the biting force of the base layer, and causes sand loss in the pavement, so that the pavement is sunken in a large area, and the pavement is loosened.

Through analyzing the pavement structure of the precast block of the pedestrian road, the following problems are found: the common concrete precast block has high rigidity and is easy to crack after encountering the action of external force; the pavement structure is generally divided into a broken stone leveling layer, a concrete base layer, a cement mortar bonding layer, a precast slab surface layer and the like, and the pavement structure of the pavement precast block is required to be improved because the pavement structure is only compacted, tiled and biting force is insufficient, cracks are easily generated due to uneven stress, water is not scattered on the base layer, and sand loss is serious.

Disclosure of Invention

The utility model aims to overcome the problems in the prior art and provide a pavement structure of a prefabricated block of a municipal engineering pavement.

In order to achieve the technical purpose and the technical effect, the utility model is realized by the following technical scheme:

the utility model provides a municipal works pavement prefabricated section road surface structure, includes by last surface course, cement mortar tie coat, concrete basic unit, gravel layer and the rammed layer that sets gradually down, the surface course is the concrete prefabricated section that elastic concrete made, just in the middle of the bottom of concrete prefabricated section for upwards bellied arch, transversely alternate in the middle of the concrete basic unit to have the high strength concrete pad board of taking the water catch bowl.

Preferably, the upper surface of the surface layer is provided with an anti-slip layer.

Further, the bottom periphery of the concrete precast block is folded inwards.

Further, the upper part of the high-strength concrete cushion plate is vertically provided with a water leakage hole and is communicated with a water collecting tank arranged in the middle part.

Further, conical supports are uniformly arranged at the bottoms of the high-strength concrete cushion plates, and the tail ends of the supports are inserted into the crushed stone layers.

Further, the rammed layer is a soil layer.

The beneficial effects of the utility model are as follows:

1. the elastic concrete precast blocks are used for absorbing pressure impact to the surface layer, so that the integrity of the ground layer is maintained;

2. the water leakage holes and the water grooves are formed in the base plate, so that rainwater can be collected and smoothly drained;

3. the backing plate uses high-strength concrete to strengthen the structural stability;

in conclusion, the technology effectively solves the problem of pavement depression and has a certain popularization and application prospect.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and together with the description serve to explain the utility model and do not constitute a limitation on the utility model. In the drawings:

FIG. 1 is a schematic view of a longitudinal section of the present utility model;

in the figure, a surface layer 1, a cement mortar bonding layer 2, a concrete base layer 3, a concrete cushion plate 4, a water collecting tank 41, water leakage holes 42, a support 43, a crushed stone layer 5 and a rammed layer 6 are arranged.

Detailed Description

The utility model will be described in detail below with reference to the drawings in combination with embodiments.

As shown in fig. 1, a pavement structure of a prefabricated pavement block for municipal engineering comprises a surface layer 1, a cement mortar bonding layer 2, a concrete base layer 3, a gravel layer 5 and a rammed layer 6 which are sequentially arranged from top to bottom, wherein the surface layer 1 is made of elastic concrete, the middle of the bottom of the surface layer 1 of the prefabricated pavement block is in an upward convex arch shape, and a high-strength concrete cushion plate 4 with a water collecting tank 41 is transversely inserted in the middle of the concrete base layer 3.

Further, a water leakage hole 42 is vertically formed in the upper portion of the high-strength concrete cushion plate 4 and is communicated with a water collecting tank 41 arranged in the middle, a conical support 43 is uniformly arranged at the bottom of the high-strength concrete cushion plate 4, and the tail end of the support 43 is inserted into the gravel layer 5.

Specifically, the surface layer 1 adopts elastic concrete as a main raw material, and an anti-slip layer is arranged on the upper surface of the surface layer 1, namely, the surface can be used as an anti-slip surface such as round dots, bars, sand blasting and the like according to the road use requirement, the middle of the bottom is arched, and the bottom is not easy to break under pressure; the periphery of the bottom is folded inwards, so that the bonding with cement mortar is tighter and firmer, and the bonding firmness can be enhanced during laying; the elastic concrete precast block has good weather resistance and cracking resistance, and the arch structure at the bottom enhances the pressure resistance and improves the load bearing capacity.

The concrete cushion plates 4 are added between the concrete base layers 3, the cushion plates are prefabricated in factories, high-strength concrete is adopted as a main raw material, and the high-strength concrete is paved simultaneously with the concrete base layers and is used as a main support of a pavement, so that the concave condition of the pavement can be maximally reduced. The inside water catch bowl 41 and the hole that leaks 42 that sets up of high strength concrete cushion, the rainwater of infiltration basic unit can follow the water catch pit along water groove 41 flow direction of hole that leaks 42, the toper support of backing plate bottom evenly arranges, confirm earlier before concrete laying that rubble screed-coat has compacted and leveled, lay concrete substrate 3 again, then place the backing plate, the backing plate becomes the strengthening rib network in the concrete substrate, the insertion of support makes concrete substrate 3 and rubble layer 5 by the compaction, the concrete then plays filling gap, the fixed effect of bonding, each layer is whole to be combined to form stable road surface substructure.

When the construction is laid, the ramming layer 6 is ground plain soil ramming; paving a crushed stone layer, leveling and compacting; the backing plate and the concrete are paved simultaneously, and the support is inserted into the concrete base layer and the gravel layer to achieve the functions of extrusion and firmness; and (3) a cement mortar bonding layer, leveling and firmly drawinging the surface layer of the concrete precast block.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims

1. The utility model provides a municipal works pavement prefabricated section road surface structure, its characterized in that includes by last surface course, cement mortar tie coat, concrete basic unit, gravel layer and the ramming layer that sets gradually down, the surface course is the concrete prefabricated section that elastic concrete made, just in the middle of the bottom of concrete prefabricated section for upwards bellied arch, transversely alternate in the middle of the concrete basic unit to have the high strength concrete pad board of taking the water catch bowl.

2. The pavement structure of the municipal engineering pavement precast block according to claim 1, wherein an anti-slip layer is arranged on the upper surface of the surface layer.

3. A pavement structure for a prefabricated pavement block for municipal works according to claim 1 or 2, wherein the bottom periphery of the prefabricated concrete block is folded inwards.

4. The pavement structure of municipal engineering pavement precast blocks according to claim 3, wherein the high-strength concrete cushion plate is vertically provided with water leakage holes at the upper part and is communicated with a water collecting tank arranged at the middle part.

5. The pavement structure of municipal engineering pavement precast blocks according to claim 4, wherein tapered supports are uniformly arranged at the bottoms of the high-strength concrete cushion plates, and the tail ends of the supports are inserted into the crushed stone layers.

6. The pavement structure of municipal works pavement precast blocks of claim 1, wherein the rammed layer is a soil layer.