Assembly interlocking type sidewalk base layer precast block and base layer structure

Abstract

The utility model discloses an assembly interlocking type sidewalk base layer precast block, the top surface and the bottom surface of the precast block are rectangles which are the same in size and parallel to each other, and the top surface of the precast block horizontally rotates by 90 degrees to form the bottom surface of the precast block; the four side surfaces of the precast block are trapezoids with the same size; for the two opposite side surfaces of the precast block, the length of the top edge of the trapezoid is smaller than that of the bottom edge, and the trapezoid inclines towards the inner side of the precast block to form inward inclined faces. For the other two opposite side surfaces, the length of the top edge of the trapezoid is larger than that of the bottom edge, and the trapezoid inclines towards the outer side of the precast block to form an outward inclined face. The arrangement, digging and maintenance construction of the precast blocks are simple and quick, and the precast blocks can be repeatedly used, so that the traffic can be quickly opened, and the interference to the surrounding traffic and environment is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sidewalk base structure, in particular to an assembled interlocking sidewalk base prefabricated block and a base structure. Background Art

[0002] Sidewalks are an important part of the urban transportation system, aiming to provide pedestrians with a safe, continuous and comfortable walking environment.

[0003] At present, the base construction of sidewalks is mostly cast-in-place cement concrete or cement-stabilized gravel paving on site. The construction and maintenance cycle is long and it is impossible to open traffic quickly. During the construction period, it not only interferes with surrounding traffic, but also has dust and noise that affect the surrounding environment. In addition, the soil foundation under the sidewalk is usually buried with urban pipelines. With the continuous advancement of urban renewal, a large number of sidewalks need to be excavated and buried or repaired and reinforced every year. The base of the sidewalk needs to break the hardened material, which has the problems of low excavation or repair construction efficiency, cumbersome process, and non-reusability, which will also interfere with surrounding traffic and the environment.

[0004] Therefore, how to avoid interference with surrounding traffic during the construction of the sidewalk base has become a technical problem that technical personnel in this field urgently need to solve. Utility Model Content

[0005] In view of the above-mentioned defects of the prior art, the utility model provides an assembled interlocking sidewalk base prefabricated block, the purpose of which is to simplify and quickly construct, quickly open traffic, and reduce interference with surrounding traffic and the environment.

[0006] In order to achieve the above technical objectives, the utility model provides an assembled interlocking sidewalk base prefabricated block, wherein the top and bottom surfaces of the prefabricated block are rectangular with the same size and parallel to each other, wherein the top surface of the prefabricated block is horizontally rotated 90 degrees to form the bottom surface of the prefabricated block;

[0007] The four side surfaces of the prefabricated block are trapezoidal with the same size;

[0008] For two opposite side surfaces of the prefabricated block, the top side length of the trapezoid is smaller than the bottom side length, and the prefabricated block is inclined toward the inner side of the prefabricated block to form an inwardly inclined surface; for the other two opposite side surfaces, the top side length of the trapezoid is larger than the bottom side length, and the prefabricated block is inclined toward the outer side of the prefabricated block to form an outwardly inclined surface.

[0009] Preferably, a first opening is formed on the top of the prefabricated block and passes through to the bottom of the prefabricated block.

[0010] Preferably, the bottom of the prefabricated block is provided with a second opening which penetrates horizontally and longitudinally respectively.

[0011] Preferably, the prefabricated block has a thickness of 8-15 cm, and a side length of the top and bottom surfaces of 30-50 cm.

[0012] The utility model further provides an assembled interlocking sidewalk base structure, which is formed by splicing a plurality of the aforementioned prefabricated blocks;

[0013] Two of the inwardly inclined surfaces of the prefabricated blocks are respectively connected to the outwardly inclined surfaces of the adjacent prefabricated blocks; the other two outwardly inclined surfaces are respectively connected to the inwardly inclined surfaces of the adjacent prefabricated blocks; an interlocking base structure is formed.

[0014] Beneficial effects of the utility model:

[0015] 1. The utility model assembles interlocking sidewalk base prefabricated blocks, and the layout, excavation and maintenance construction of the prefabricated blocks are simple and fast, and the prefabricated blocks can be reused, so that traffic can be opened quickly and interference with surrounding traffic and environment is reduced.

[0016] 2. The assembled interlocking sidewalk base structure of the utility model has a stronger integrity due to the interlocking effect between the prefabricated blocks, which not only reduces the occurrence of base settlement, but also enhances the load transfer capacity between the prefabricated blocks and reduces the risk of damage to the base structure; the second opening on the prefabricated block can be used as a reserved channel for the laying of underground pipelines, and the pipelines do not need to be buried in the soil foundation below the base, which facilitates the laying and maintenance of the pipelines. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the interlocking sidewalk base prefabricated blocks of the utility model;

[0018] Figure 2 It is a schematic diagram of the plan structure of the interlocking sidewalk base prefabricated blocks assembled in the utility model;

[0019] Figure 3 It is a structural schematic diagram of an assembled interlocking sidewalk base structure of the utility model;

[0020] Figure 4 for Figure 3 Schematic diagram of the cross-sectional structure at AA in the middle.

[0021] In the figure: 1 rectangular hole, 2 inwardly inclined surface, 3 outwardly inclined surface, 4 semicircular hole, 5 prefabricated block. DETAILED DESCRIPTION

[0022] The concept, specific structure and technical effects of the present invention will be further described below in conjunction with the accompanying drawings to fully understand the purpose, characteristics and effects of the present invention.

[0023] Example:

[0024] like Figure 1 and Figure 2 As shown, the interlocking sidewalk base prefabricated blocks are assembled, and the top and bottom surfaces of the prefabricated block 5 are rectangular with the same size and parallel to each other, wherein the top surface of the prefabricated block 5 is horizontally rotated 90 degrees to form the bottom surface of the prefabricated block 5;

[0025] The four side surfaces of the prefabricated block 5 are trapezoidal in shape with the same size;

[0026] For two opposite side surfaces of the prefabricated block 5, the top side length of the trapezoid is smaller than the bottom side length, and the prefabricated block 5 is inclined to the inside to form an inwardly inclined surface 2; for the other two opposite side surfaces, the top side length of the trapezoid is larger than the bottom side length, and the prefabricated block 5 is inclined to the outside to form an outwardly inclined surface 3.

[0027] The main innovation of the utility model is that only one prefabricated block 5 of uniform specification and shape is needed for any splicing; therefore, excavation or maintenance and other constructions are simple and fast, traffic can be opened quickly, and interference with surrounding traffic and environment is reduced.

[0028] Specifically, a first opening is opened on the top of the prefabricated block 5 and passes through to the bottom of the prefabricated block 5. The first opening is a rectangular hole 1, which is used for backfilling crushed stones, construction waste, liquid solidified soil, etc.

[0029] The bottom of the prefabricated block 5 is provided with a second opening which penetrates horizontally and longitudinally respectively. The second opening is a semicircular hole 4 which can be used as a reserved channel for laying underground pipelines.

[0030] In some embodiments, the prefabricated block 5 has a thickness of 8-15 cm, and a side length of the top and bottom surfaces of 30-50 cm. It can be prefabricated in a factory using cement concrete, solid waste recycled materials, etc.

[0031] like Figure 3 and Figure 4 As shown, the assembled interlocking sidewalk base structure is formed by splicing a plurality of prefabricated blocks 5;

[0032] Two inwardly inclined surfaces 2 of the prefabricated block 5 are respectively connected to the outwardly inclined surfaces 3 of the adjacent prefabricated block 5; the other two outwardly inclined surfaces 3 are respectively connected to the inwardly inclined surfaces 2 of the adjacent prefabricated block 5; thereby establishing an interlocking relationship and forming an interlocking base structure.

[0033] The inwardly inclined surface 2 and the outwardly inclined surface 3 of the prefabricated block 5 are arranged alternately. When the top surface of the prefabricated block 5 is subjected to a vertical load, the load can be diffused to the adjacent prefabricated block 5 through the inwardly inclined surface 2 or the outwardly inclined surface 3, which has a good load transfer effect, thereby enhancing the overall stability of the base structure. In addition, the vertical displacement of the prefabricated block 5 can be limited by the interlocking effect between the inwardly inclined surface 2 and the outwardly inclined surface 3 of the prefabricated block 5, thereby resisting the deformation of the soil foundation settlement and reducing the occurrence of the subsidence of the prefabricated block 5.

[0034] In summary, the utility model has the following advantages:

[0035] 1. The construction is simple and fast, which can quickly open up traffic and reduce interference with surrounding traffic and the environment.

[0036] 2. Dismantling and maintenance are convenient and quick, and it can be reused, which can effectively reduce the project cost.

[0037] 3. Each prefabricated block of the assembled interlocking sidewalk base structure can be prefabricated in a factory, which is highly efficient, with stable and controllable quality. On-site construction does not require concrete pouring and maintenance, which improves construction efficiency.

[0038] 4. Through the interlocking effect between prefabricated blocks, on the one hand, the integrity of the prefabricated blocks can be enhanced, the influence of soil foundation settlement and deformation can be better resisted, and the occurrence of base structure settlement can be reduced. On the other hand, the load transfer capacity between prefabricated blocks can be enhanced, and the force on the base structure can be more reasonable through load diffusion, thereby reducing the risk of damage to the base structure.

[0039] 5. The semicircular holes on the side of the prefabricated block can be used as reserved channels for laying underground pipelines. The pipelines do not need to be buried in the soil foundation under the base structure, which facilitates the laying and maintenance of the pipelines.

[0040] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. Assemble interlocking prefabricated sidewalk base blocks, characterized by: The top and bottom surfaces of the prefabricated block are rectangular with the same size and parallel to each other, wherein the top surface of the prefabricated block is horizontally rotated 90 degrees to form the bottom surface of the prefabricated block; The four side surfaces of the prefabricated block are trapezoidal with the same size; For two opposite side surfaces of the prefabricated block, the top side length of the trapezoid is smaller than the bottom side length, and the prefabricated block is inclined toward the inner side of the prefabricated block to form an inwardly inclined surface; for the other two opposite side surfaces, the top side length of the trapezoid is larger than the bottom side length, and the prefabricated block is inclined toward the outer side of the prefabricated block to form an outwardly inclined surface.

2. The assembled interlocking sidewalk base prefabricated block according to claim 1 is characterized in that: The top of the prefabricated block is provided with a first opening which penetrates to the bottom of the prefabricated block.

3. The interlocking prefabricated block for sidewalk base according to claim 2 is characterized in that: The bottom of the prefabricated block is respectively provided with second openings which penetrate horizontally and vertically.

4. The interlocking prefabricated block for sidewalk base according to any one of claims 1 to 3, characterized in that: The thickness of the prefabricated block is 8-15 cm, and the side lengths of the top and bottom surfaces are 30-50 cm.

5. Assemble an interlocking sidewalk base structure, characterized by: It is formed by splicing a plurality of the prefabricated blocks described in any one of claims 1 to 4 above; Two of the inwardly inclined surfaces of the prefabricated blocks are respectively connected to the outwardly inclined surfaces of the adjacent prefabricated blocks; the other two outwardly inclined surfaces are respectively connected to the inwardly inclined surfaces of the adjacent prefabricated blocks; an interlocking base structure is formed.

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