Light prefabricated part filling roadbed structure

Abstract

The utility model provides a light prefabricated part filling roadbed structure which comprises a roadbed foundation pit body and light prefabricated part filling layers, and the light prefabricated part filling layers are filled in the roadbed foundation pit body layer by layer. The light prefabricated part filling layer comprises a plurality of light prefabricated parts which are connected in an inserted mode, and tie bar holes are formed in the centers of the light prefabricated parts in the horizontal direction in a penetrating mode. The tie bar holes in the adjacent light prefabricated parts in the horizontal direction communicate with one another and are used for penetrating of anchor tie bars. The light prefabricated parts are tightly connected through the inserting structures, the tie bar holes are aligned, the anchor tie bars are conveniently and smoothly installed, the tie bar holes are protected by arranging the cylinders in the tie bar holes, the tie bar holes are not prone to damage, the anchor tie bars are conveniently and smoothly installed, and meanwhile the light prefabricated parts are not prone to damage. The corners at the joints of the adjacent surfaces of the square building block are oblique angles, so that corner protection is facilitated, and the matching effect of the surfaces of the adjacent light prefabricated parts is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of roadbed filling, in particular to a roadbed filling structure with light prefabricated components. Background Art

[0002] The use of foam lightweight soil blocks for roadbed construction is a new way of filling roadbed. Compared with cast-in-place foam soil roadbed, it has strong construction operability, is less affected by weather and construction environment conditions, and can achieve rapid construction.

[0003] A Chinese invention application with publication number CN113605163A discloses a roadbed widening method, in which a roadbed widening structure composed of arranged foam lightweight soil roadbed blocks is constructed layer by layer on one side of the original roadbed. After each layer of the widening structure is constructed, a retaining wall in contact with the outer side of the widening structure is constructed on the outer side of the widening structure. A groove is provided on the bottom surface of the foam lightweight soil roadbed block, and an anchor reinforcement is passed through the set retaining wall module. The end of the anchor pile of the anchor reinforcement passes through the retaining wall module and passes through the groove provided on the bottom surface of the foam lightweight soil roadbed block, and then extends into the original roadbed. The other end is fixed to the retaining wall module by an anchor.

[0004] As in the above-mentioned technical solution, the foam lightweight soil roadbed blocks filled in the foundation pit are lightweight prefabricated components. After filling, the connection between adjacent lightweight prefabricated components is not tight enough, which makes adjacent grooves easily misaligned and inconvenient for the smooth insertion of anchor reinforcement. In order to solve the above-mentioned technical problems, it is necessary to provide a lightweight prefabricated component roadbed structure that is convenient for installing anchor reinforcement. Utility Model Content

[0005] In view of this, the utility model proposes a lightweight prefabricated component roadbed structure, which uses a plug-in structure to achieve a tight connection of lightweight prefabricated components, aligns the reinforcement holes, and facilitates the smooth installation of anchor reinforcements. The reinforcement holes are protected by arranging cylinders in the reinforcement holes, making the reinforcement holes less likely to be damaged and facilitating the smooth installation of anchor reinforcements. At the same time, by setting the corners of the junctions of adjacent surfaces of the square building blocks to be beveled, it is convenient to achieve corner protection and improve the matching effect of adjacent lightweight prefabricated component surfaces.

[0006] The technical solution of the utility model is implemented as follows: The utility model provides a roadbed structure filled with lightweight prefabricated components, including a roadbed foundation pit body and a lightweight prefabricated component filling layer, wherein:

[0007] The interior of the main body of the roadbed foundation pit is filled with lightweight prefabricated component filling layers layer by layer;

[0008] The lightweight prefabricated component filling layer includes a plurality of lightweight prefabricated components plugged into each other, wherein:

[0009] A tie rod hole is provided in the center of the lightweight prefabricated component in the horizontal direction;

[0010] The tie rod holes on adjacent lightweight prefabricated components in the horizontal direction are interconnected for the penetration of anchor tie rods.

[0011] On the basis of the above technical solution, preferably, the lightweight prefabricated components include square blocks and cylinders, wherein:

[0012] The tie rod hole is set through the center of the square block;

[0013] The cylinder is inserted into the tie rod hole and fixedly connected with the square building block.

[0014] On the basis of the above technical solution, preferably, two adjacent and right-angled end faces of the square building block are provided with slots, and the other two end faces of the square building block opposite to the slots are fixedly provided with plug plates, wherein:

[0015] The slots and the inserting plates are centrally arranged on the corresponding end faces of the square building blocks.

[0016] On the basis of the above technical solution, preferably, the slot and the insert plate both extend along the axial direction of the reinforcement hole and extend to the end face of the square building block.

[0017] On the basis of the above technical solution, preferably, the slot and the plug plate are both rectangular, and the end of the plug plate away from the square building block is wedge-shaped.

[0018] On the basis of the above technical solution, preferably, the corners of the junctions of adjacent faces of the square building blocks are all set as bevel angles, wherein:

[0019] The bevel angle where two faces meet is smaller than the bevel angle where three faces meet.

[0020] On the basis of the above technical solution, preferably, the square building block is a quadrangular prism, and the cross section of the quadrangular prism is a square or a rectangle.

[0021] On the basis of the above technical solution, preferably, the lightweight prefabricated components in two adjacent lightweight prefabricated component filling layers are laid in an alternating manner.

[0022] On the basis of the above technical solution, preferably, it also includes multiple steps, retaining walls, leveling layers and adhesive layers, wherein:

[0023] The multi-step ladder is fixedly arranged on the main body of the roadbed foundation pit close to the center of the road surface;

[0024] The retaining wall is fixedly arranged on the outside of the main body of the roadbed foundation pit close to the road surface;

[0025] The leveling layer is arranged on the bottom of the main body of the roadbed foundation pit between the multi-step ladder and the retaining wall;

[0026] The adhesive layer is arranged on the top surface of the leveling layer;

[0027] The lightweight prefabricated components are laid layer by layer on the top surface of the adhesive layer and the top surface of the multi-step ladder to form a lightweight prefabricated component filling layer.

[0028] The lightweight prefabricated component filling roadbed structure of the utility model has the following beneficial effects compared with the prior art:

[0029] (1) The lightweight prefabricated component filling layer includes a plurality of lightweight prefabricated components that are plugged into each other, and the reinforcement holes on the adjacent lightweight prefabricated components in the horizontal direction are interconnected, so that the reinforcement holes can be easily aligned and the anchor reinforcement can be smoothly installed.

[0030] (2) By setting a cylinder in the reinforcement hole, the reinforcement hole is protected. The reinforcement hole is not easily damaged during the roadbed filling process, which facilitates the smooth installation of anchor reinforcement. In addition, during the filling process, it is easy to fill the reinforcement hole with foam soil, effectively improving the connection strength of adjacent lightweight prefabricated components and improving the roadbed strength after filling.

[0031] (3) By setting the corners of the joints of adjacent surfaces of the square blocks to be beveled, it is easy to achieve corner protection, so that the edges of the square blocks are not easy to warp, which is beneficial to improving the matching effect of the adjacent lightweight prefabricated component surfaces. During assembly, the matching surfaces of two adjacent square blocks can be well fitted, which is beneficial to smooth filling. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0033] Figure 1 This is a schematic diagram of a lightweight prefabricated component filling roadbed structure of the utility model;

[0034] Figure 2 It is a three-dimensional diagram of the lightweight prefabricated component of the utility model;

[0035] Figure 3 It is a longitudinal section structure schematic diagram of the lightweight prefabricated component of the utility model;

[0036] Figure 4 This is a diagram of the laying state of the lightweight prefabricated components of the utility model layer by layer;

[0037] Figure 5 It is a schematic diagram of a square cross section of a lightweight prefabricated component of the utility model;

[0038] Figure 6 It is a schematic diagram of a rectangular cross section of a lightweight prefabricated component of the utility model;

[0039] In the figure: roadbed foundation pit body 1, lightweight prefabricated component filling layer 2, lightweight prefabricated component 3, multi-level steps 4, retaining wall 5, leveling layer 6, adhesive layer 7, sealing layer 8, pavement layer 9, square building blocks 31, cylinder 32, reinforcement holes 201, slots 301, and plug plates 302. DETAILED DESCRIPTION

[0040] The following will be combined with the specific implementation of the utility model to clearly and completely describe the technical solution in the utility model. Obviously, the described implementation is only a part of the implementation of the utility model, not all of the implementations. Based on the implementation of the utility model, all other implementations obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0041] Embodiment 1:

[0042] like Figure 1-6 As shown, a lightweight prefabricated component roadbed structure of the utility model comprises a roadbed foundation pit body 1 and a lightweight prefabricated component filling layer 2, wherein the interior of the roadbed foundation pit body 1 is filled with the lightweight prefabricated component filling layer 2 layer by layer; the lightweight prefabricated component filling layer 2 comprises a plurality of lightweight prefabricated components 3 plugged into each other, wherein a reinforcement hole 201 is provided through the center of the lightweight prefabricated component 3 in a horizontal direction; the reinforcement holes 201 on adjacent lightweight prefabricated components 3 in a horizontal direction are interconnected for the penetration of anchor reinforcements.

[0043] It also includes a multi-step ladder 4, a retaining wall 5, a leveling layer 6 and an adhesive layer 7, wherein the multi-step ladder 4 is fixedly arranged on the center side of the foundation pit main body 1 close to the road surface; the retaining wall 5 is fixedly arranged on the outer side of the foundation pit main body 1 close to the road surface; the leveling layer 6 is arranged on the bottom of the foundation pit main body 1 between the multi-step ladder 4 and the retaining wall 5; the adhesive layer 7 is arranged on the top surface of the leveling layer 6; the lightweight prefabricated components 3 are laid layer by layer on the top surface of the adhesive layer 7 and the top surface of the multi-step ladder 4 to form a lightweight prefabricated component filling layer 2.

[0044] Specifically, a plurality of lightweight prefabricated components 3 are laid layer by layer in the roadbed foundation pit main body 1 by plugging into each other to form a lightweight prefabricated component filling layer 2. During laying, the reinforcement holes 201 can be aligned and connected by plugging, and the reinforcement holes 201 face the side wall of the roadbed foundation pit main body 1. When it is necessary to install anchor reinforcement, one end of the anchor reinforcement is passed through the reinforcement hole 201 and anchored into the side wall of the roadbed foundation pit main body 1, and the other end is anchored to the retaining wall 5. The above structure facilitates the mutual connection of the reinforcement holes 201, the alignment of the reinforcement holes 201, and the smooth installation of the anchor reinforcement. During the laying process, the lightweight prefabricated components 3 in two adjacent layers of lightweight prefabricated component filling layers 2 are staggered, which can improve the strength of the lightweight prefabricated component filling layer 2, and thus improve the strength of the roadbed after filling.

[0045] In the above structure, the excavation depth of the main body 1 of the roadbed foundation pit is 507 cm, and a stepped excavation layer is excavated on the central side of the road surface to form a multi-level step 4, each step is 100 cm high, and the step width is 100 cm. A 20 cm cast-in-place cement concrete retaining wall 5 is set on the outer side of the road surface of the main body 1 of the roadbed foundation pit, and concrete is used as a leveling layer 6 at the bottom of the pit of the main body 1 of the roadbed foundation pit. The concrete thickness of the leveling layer 6 is 7 cm, and then an adhesive layer 7 is laid on the leveling layer 6. The adhesive layer 7 is a 3 mm thick modified emulsified asphalt layer, and then the lightweight prefabricated component filling layer 2 is laid layer by layer in the main body of the roadbed foundation pit 1. After laying, a sealing layer 8 is made on the lightweight prefabricated component filling layer 2. The sealing layer 8 is a 3 mm thick hot-melt asphalt waterproof membrane, and a pavement layer 9 is laid on the sealing layer 8.

[0046] As a preferred embodiment of a lightweight prefabricated component roadbed structure, the lightweight prefabricated component 3 includes a square building block 31 and a cylinder 32, wherein a reinforcement hole 201 is set through the center of the square building block 31; the cylinder 32 is sleeved in the reinforcement hole 201 and fixedly connected to the square building block 31.

[0047] Specifically, Figure 2-3 As shown, the cylinder 32 is sleeved and fixed in the reinforcement hole 201 to strengthen the reinforcement hole 201 so that it is not easily damaged. The reinforcement hole 201 is not easily damaged during the roadbed filling process, which facilitates the smooth installation of the anchor reinforcement. In the filling process, it is convenient to fill the foam soil through the reinforcement hole 201, effectively improving the connection strength of adjacent lightweight prefabricated components 3 and improving the roadbed strength after filling.

[0048] As a preferred implementation scheme for a lightweight prefabricated component roadbed structure, slots 301 are provided on two adjacent and right-angled end faces of a square building block 31, and plug plates 302 are fixedly provided on the other two end faces of the square building block 31 opposite to the slots 301, wherein the slots 301 and the plug plates 302 are both centrally arranged on the corresponding end faces of the square building block 31; the slots 301 and the plug plates 302 are plugged into each other.

[0049] Specifically, Figure 2 and Figure 5 As shown, the length, width and thickness of the square building block 31 are 300cm, 50cm and 50cm respectively, wherein plug-in structures are arranged on the four faces of 300cm×50cm, and the plug-in structures on the two opposite faces are respectively a slot 301 and a plug-in plate 302, the slot 301 and the plug-in plate 302 are arranged along the long side direction of the square building block 31 and are parallel to the long side, and are located in the middle position of each face, and extend to the end face of the square building block 31, and there is no plug-in structure on the two faces of 50cm×50cm, and the axis of the tie rod hole 201 is parallel to the long side direction of the square building block 31. During assembly, adjacent square building blocks 31 are connected by plug-in cooperation of the slot 301 and the plug-in plate 302, and a plurality of square building blocks 31 are plug-in assembled to form a lightweight prefabricated component filling layer 2, and the strength of the lightweight prefabricated component filling layer 2 is improved through assembly, thereby improving the strength of the roadbed after filling.

[0050] As a preferred implementation of a lightweight prefabricated component roadbed structure, the slot 301 and the plug plate 302 are both rectangular, and the end of the plug plate 302 away from the square building block 31 is wedge-shaped.

[0051] Specifically, Figure 2 As shown, the wedge-shaped structure facilitates the smooth insertion of the plug board 302 into the slot 301, thereby improving assembly efficiency.

[0052] As a preferred embodiment of a lightweight prefabricated component roadbed structure, the corners of the junctions of adjacent faces of the square blocks 31 are all set to be oblique angles, wherein the oblique angle at the junction of two faces is smaller than the oblique angle at the junction of three faces.

[0053] Specifically, Figure 2 As shown, the bevel angle is a C angle, which is convenient for corner protection and prevents the edges of the square blocks 31 from warping, which is beneficial to improving the matching effect of the adjacent lightweight prefabricated components 3. During assembly, the matching surfaces of the two adjacent square blocks 31 can fit well, which is beneficial to smooth filling.

[0054] Embodiment 2:

[0055] Compared with the first embodiment, the difference is:

[0056] The excavation depth of the main body 1 of the roadbed foundation pit is 303 cm, the thickness of the retaining wall 5 is 15 cm, and the leveling layer 6 is 3 cm thick cement mortar.

[0057] like Figure 6 As shown, the length, width and thickness of the square building block 31 are 400 cm, 100 cm and 50 cm respectively, wherein the four faces of 400 cm×100 cm and 400 cm×50 cm are provided with plug-in structures, and the two faces of 100 cm×50 cm have no plug-in structures.

[0058] The method for using the lightweight prefabricated component to fill the roadbed structure of the utility model is as follows:

[0059] First, a roadbed foundation pit body 1 is excavated on one side of the original roadbed, and then multiple steps 4 are excavated on the roadbed foundation pit body 1 near the center of the road. Anchor holes are set on the original roadbed, and a retaining wall 5 is cast on the outer side of the road surface. Anchor holes are also reserved on the retaining wall 5. After solidification, a leveling layer 6 is cast on the bottom of the roadbed foundation pit body 1. After solidification, an adhesive layer 7 is laid on the top surface of the leveling layer 6, and a number of lightweight prefabricated components 3 are laid layer by layer in the roadbed foundation pit body 1 above the adhesive layer 7. When laying, the lightweight prefabricated components 3 are laid. At the same time, they are pressed onto the multi-step stairs 4, and two adjacent lightweight prefabricated components 3 are plugged and assembled through the slots 301 and the plug plates 302 to form a lightweight prefabricated component filling layer 2. The reinforcement hole 201 faces the multi-step stairs 4, and one end of the anchor reinforcement is passed through the reinforcement hole 201 and anchored to the anchor hole of the original roadbed. The other end of the reinforcement hole 201 is anchored to the anchor hole reserved on the retaining wall 5. After that, a sealing layer 8 is laid on the top layer of the lightweight prefabricated component filling layer 2, and then a pavement layer 9 is laid on the top surface of the sealing layer 8.

[0060] 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, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lightweight prefabricated component filling roadbed structure, comprising a roadbed foundation pit body (1) and a lightweight prefabricated component filling layer (2), wherein: The interior of the roadbed foundation pit body (1) is filled with lightweight prefabricated component filling layers (2) layer by layer; The invention is characterized in that: the lightweight prefabricated component filling layer (2) comprises a plurality of lightweight prefabricated components (3) which are plugged into each other, wherein: A reinforcement hole (201) is provided in the center of the lightweight prefabricated component (3) in a horizontal direction; The reinforcing bar holes (201) on the adjacent lightweight prefabricated components (3) in the horizontal direction are interconnected and used for the penetration of anchor reinforcing bars.

2. A lightweight prefabricated component roadbed structure as claimed in claim 1, characterized in that: The lightweight prefabricated component (3) comprises a square block (31) and a cylinder (32), wherein: A reinforcing bar hole (201) is provided through the center of the square building block (31); The cylinder (32) is inserted into the reinforcement hole (201) and is fixedly connected to the square building block (31).

3. A lightweight prefabricated component roadbed structure as claimed in claim 2, characterized in that: The two adjacent and mutually perpendicular end surfaces of the square building block (31) are provided with slots (301), and the other two end surfaces of the square building block (31) opposite to the slots (301) are fixedly provided with plugging plates (302), wherein: The slot (301) and the inserting plate (302) are both centrally arranged on the corresponding end faces of the square building block (31).

4. A lightweight prefabricated component roadbed structure as claimed in claim 3, characterized in that: The slot (301) and the inserting plate (302) both extend along the axial centerline direction of the reinforcing bar hole (201) and extend to the end surface of the square building block (31).

5. A lightweight prefabricated component roadbed structure as claimed in claim 4, characterized in that: The slot (301) and the inserting plate (302) are both rectangular in shape, and one end of the inserting plate (302) away from the square building block (31) is wedge-shaped.

6. A lightweight prefabricated component roadbed structure as claimed in claim 2, characterized in that: The corners of the junctions of adjacent faces of the square building blocks (31) are all set to be oblique angles, wherein: The bevel angle where two faces meet is smaller than the bevel angle where three faces meet.

7. A lightweight prefabricated component roadbed structure as claimed in claim 6, characterized in that: The square building block (31) is a quadrangular prism, and the cross section of the quadrangular prism is a square or a rectangle.

8. The lightweight prefabricated component roadbed structure according to claim 1, characterized in that: The lightweight prefabricated components (3) in two adjacent lightweight prefabricated component filling layers (2) are laid in an alternating manner.

9. A lightweight prefabricated component roadbed structure as claimed in claim 1, characterized in that: It also includes a plurality of steps (4), a retaining wall (5), a leveling layer (6) and an adhesive layer (7), wherein: The multiple steps (4) are fixedly arranged on the roadbed foundation pit body (1) close to the center of the road surface; The retaining wall (5) is fixedly arranged on the outer side of the roadbed foundation pit body (1) close to the road surface; The leveling layer (6) is arranged on the bottom of the roadbed foundation pit body (1) between the multi-step ladder (4) and the retaining wall (5); The adhesive layer (7) is arranged on the top surface of the leveling layer (6); The lightweight prefabricated components (3) are laid layer by layer on the top surface of the adhesive layer (7) and the top surface of the multi-step ladder (4) to form a lightweight prefabricated component filling layer (2).

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