Fabricated wing wall structure and construction method

Abstract

The fabricated wing wall structure comprises a prefabricated bottom plate, a wall bottom layer installed on the prefabricated bottom plate, a wall body layer and a wall top layer installed on the top of the wall body layer. The multiple wall body layers are sequentially installed from bottom to top, the wall top layer comprises wall top prefabricated blocks and wall top embedded blocks, the wall top prefabricated blocks and the wall top embedded blocks are installed on the wall body layers, the number of the wall top prefabricated blocks is two, and the wall top embedded blocks are arranged between the two wall top prefabricated blocks. According to the assembly type wing wall structure, the prefabricated bottom plate is matched with the wall bottom layer for installation, the installation stability of the bottom layer is ensured, the wall body layer and the wall top layer are sequentially installed and constructed from bottom to top, the whole assembly type structure is adopted, it is ensured that the construction period can be greatly shortened, and the construction efficiency is effectively improved.

Description

Technical Field

[0001] The present invention relates to the field of building construction, and particularly to a prefabricated wing wall structure and a construction method thereof. Background Art

[0002] When designing a road, in order to enable the road to pass through a water channel smoothly, a drainage culvert is often set under the roadbed to cross a natural valley depression to discharge flood. In order to prevent the water flow from scouring and eroding the roadbed, wing walls are usually set at the entrances and exits.

[0003] Common wing wall forms include straight wall, flared wall, conical slope wall, circular arc wall, etc. The structure is mainly a gravity retaining wall. The gravity retaining wall occupies a large area. The construction requires excavating the existing ground, then on-site formwork support for pouring a large amount of concrete and curing for a period of time. The cost and construction period are relatively high, and it cannot meet the existing rapid construction requirements.

[0004] Therefore, to solve the above problems, a prefabricated wing wall structure is needed to solve the above production problems. Summary of the Invention

[0005] In view of this, the prefabricated wing wall structure of this technical solution ensures the stability of the bottom layer installation by using a precast bottom plate in cooperation with the wall bottom layer for installation. The wall body layer and the wall top layer are installed and constructed successively from bottom to top. The overall prefabricated structure ensures that the construction period can be greatly reduced and the construction efficiency can be effectively improved.

[0006] A prefabricated wing wall structure includes a precast bottom plate, a wall bottom layer installed on the precast bottom plate, a wall body layer, and a wall top layer installed on the top of the wall body layer; the wall body layer is multi-layered and the multi-layer wall body layers are installed successively from bottom to top. The wall top layer includes a wall top precast block and a wall top fitting block installed on the wall body layer. There are two wall top precast blocks and the wall top fitting block is arranged between the two wall top precast blocks.

[0007] Further, the wall bottom layer includes a wall bottom edge block and a wall bottom middle block installed on the precast bottom plate. Bottom block positioning holes for positioning and installing in cooperation with the precast bottom plate are provided at the bottoms of the wall bottom edge block and the wall bottom middle block.

[0008] Further, an edge block convex block protrudes on the wall bottom edge block, a middle block convex block protrudes on the wall bottom middle block, and a diamond-shaped installation hole is formed between the edge block convex block and the middle block convex block after the wall bottom edge block and the wall bottom middle block are inserted and installed.

[0009] Further, the wall body layer has the same structure as the wall bottom layer, and the wall body layers are inserted and installed successively from bottom to top.

[0010] Further, the top wall precast blocks include a top wall head precast block and a top wall tail precast block. The installation height of the top wall head precast block is higher than that of the top wall tail precast block. After the installation of the top wall head precast block, the top wall fitting block, and the top wall tail precast block, they form an inclined angle relative to the horizontal plane.

[0011] Further, a fitting block inclined surface is formed on the surface of the top wall fitting block, and a fitting block edge extending outward from the lower end of the fitting block inclined surface is formed. The fitting block edge is inclined relative to the horizontal plane to form an edge angle of 2-3°.

[0012] Further, a concrete tenon is cast in the diamond-shaped installation hole.

[0013] A construction method for an assembled wing wall structure includes the following steps:

[0014] S1: Clean the construction site as required. According to the position where the wing wall needs to be installed, hoist and place the precast bottom slab to the designated position;

[0015] S2: Install the bottom wall side blocks and the bottom wall middle blocks in cooperation with the positioning steel bars on the precast bottom slab. After the installation is completed, use the grouting sleeve process to fixedly connect the bottom wall side blocks and the bottom wall middle blocks to the precast bottom slab. Pour cast lightweight concrete into the diamond-shaped installation holes between the bottom wall side blocks, between the bottom wall middle blocks, and between the bottom wall middle blocks and the bottom wall middle blocks to form concrete tenons;

[0016] S3: Fill and compact the soil inside the bottom wall side blocks and the bottom wall middle blocks;

[0017] S4: Install the wall body layer on the wall bottom layer, and use the grouting sleeve process to firmly install the wall body layer on the wall bottom layer;

[0018] S5: Install the top wall precast blocks and the top wall fitting blocks on the topmost wall body layer through the grouting sleeve process, fill and compact the soil inside the top wall precast blocks and the top wall fitting blocks, and perform surface concrete construction treatment to form the top wall surface.

[0019] The beneficial effects of the present invention are as follows:

[0020] 1. By adopting the precast bottom slab in cooperation with the wall bottom layer for installation, the installation stability of the bottom layer is ensured. The wall body layer and the wall top layer are installed and constructed successively from bottom to top. The overall adoption of the assembled structure ensures that the construction period can be greatly reduced, effectively improving the construction efficiency;

[0021] 2. The present invention adopts an assembled wing wall structure, effectively reducing the excavation and backfill volume of the original ground and reducing the earthwork quantity;

[0022] 3. The assembled wing wall adopts hollow concrete precast blocks, and the soil for filling the wall body is directly taken from the original place, which can significantly reduce the concrete engineering quantity;

[0023] 4. The adoption of prefabricated structures eliminates the need for formwork erection, pouring, and curing. Moreover, the types of precast components are few, their weights are light, making, transportation, splicing are convenient, which can effectively shorten the construction period.

[0024] 5. Mortise and tenon connections are used between precast blocks, where the tenons are cast later. Even if there are errors in the dimensions of the protruding tenons of the precast blocks, it does not affect the complete fitting of the tenons and the protruding tenons, improving the error tolerance of the prefabrication process and reducing the prefabrication cost.

[0025] 6. The installation angle can be adjusted according to on-site needs. Whether it is a straight wall or a flared wall, only the positions of the foundation steel bars need to be adjusted, and the upper wall body is spliced according to the original plan to achieve the goal of modifying the wing wall angle, reducing the difficulty of construction changes. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The present invention will be further described below in conjunction with the drawings and embodiments:

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0028] Figure 2 It is a schematic diagram of the construction of the wall body layer of the present invention;

[0029] Figure 3 It is a schematic diagram of the backfill of the bottom layer of the wall of the present invention;

[0030] Figure 4 It is a schematic diagram of the installation of the bottom layer filling of the present invention;

[0031] Figure 5 It is a schematic diagram of the precast floor slab of the present invention;

[0032] Figure 6 It is a schematic diagram of the bottom side block of the wall of the present invention;

[0033] Figure 7 It is a schematic diagram of the middle block at the bottom of the wall of the present invention;

[0034] Figure 8 It is a schematic diagram of the precast block at the tail end of the wall top of the present invention;

[0035] Figure 9 It is a schematic diagram of the precast block at the head end of the wall top of the present invention;

[0036] Figure 10 It is a schematic diagram of the concrete tenon of the present invention;

[0037] Figure 11 It is a schematic diagram of other structures of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0038] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the construction of the wall body layer of the present invention;Figure 3 Schematic diagram of the soil filling at the bottom layer of the wall of the present invention; Figure 4 Schematic diagram of the installation of the bottom layer filling of the present invention; Figure 5 Schematic diagram of the precast floor slab of the present invention; Figure 6 Schematic diagram of the bottom block of the wall of the present invention; Figure 7 Schematic diagram of the middle block at the bottom of the wall of the present invention;

[0039] Figure 8 Schematic diagram of the precast block at the tail end of the wall top of the present invention; Figure 9 Schematic diagram of the precast block at the head end of the wall top of the present invention;

[0040] Figure 10 Schematic diagram of the concrete tenon of the present invention; Figure 11 Schematic diagram of other structures of the present invention; As shown in the figure, an assembled wing wall structure includes a precast floor slab 1, a wall bottom layer, a wall body layer installed on the precast floor slab 1, and a wall top layer installed on the top of the wall body layer; the wall body layer is multi-layered and the multi-layer wall body layers are installed successively from bottom to top. The wall top layer includes a wall top precast block and a wall top fitting block 5 installed on the wall body layer. There are two wall top precast blocks and the wall top fitting block 5 is arranged between the two wall top precast blocks; by using the precast floor slab to cooperate with the wall bottom layer for installation, the stability of the bottom layer installation is ensured. The wall body layer and the wall top layer are installed successively from bottom to top. The overall assembled structure ensures that the construction period can be greatly reduced and the construction efficiency is effectively improved.

[0041] In this embodiment, the wall bottom layer includes a wall bottom block 2 and a wall bottom middle block 3 installed on the precast floor slab 1. Bottom block positioning holes for positioning and installing in cooperation with the precast floor slab are provided at the bottoms of the wall bottom block 2 and the wall bottom middle block 3. As Figure 5 shown, a positioning steel bar 11 structure is provided on the upper surface of the precast floor slab 1. Corresponding bottom block positioning holes for inserting and installing in cooperation with the positioning steel bar 11 are also provided at the bottoms of the wall bottom block 2 and the wall bottom middle block 3. The positioning steel bar 11 is used for inserting and installing in cooperation with the wall bottom block 2 and the wall bottom middle block 3. When the installation of the wall bottom layer is completed, the wall bottom layer is stably and firmly installed in cooperation with the precast floor slab 1 through the grouting sleeve process (holes can be opened on the wall block or other structures for the grouting sleeve process. Here, the existing technology is adopted and will not be elaborated).

[0042] In this embodiment, a side block convex block is formed by protruding on the wall bottom block, and a middle block convex block 31 is formed by protruding on the wall bottom middle block. After the wall bottom block and the wall bottom middle block are inserted and installed, a diamond-shaped installation hole 6 is formed between the side block convex block and the middle block convex block 31. As Figure 3 、 Figure 7As shown, convex block structures are formed by the lateral protrusions of the bottom wall edge block 2 and the middle bottom wall block 3. After the bottom wall edge block 2 and the middle bottom wall block 3 are inserted and fitted together, a diamond-shaped installation hole 6 is formed between the edge block convex block and the middle block convex block 31. The bottom wall edge block and the middle bottom wall block are fitted and installed by means of insertion, ensuring stable and efficient installation between components. The diamond-shaped installation hole 6 formed after the middle part is installed facilitates subsequent pouring construction.

[0043] In this embodiment, the wall body layer has the same structure as the wall bottom layer, and the wall body layer is inserted from bottom to top in sequence. The wall body layer and the wall bottom layer adopt the same installation structure and are installed and constructed from bottom to top in sequence, reducing the types of precast components processed. Reinforcing bar structures are arranged on the upper surfaces of the bottom wall edge block 2 and the middle bottom wall block 3, facilitating positioning and insertion construction layer by layer. Of course, the grouting sleeve process is also adopted during the construction of each layer of the wall to ensure reliable connection between each layer of the wall.

[0044] In this embodiment, the top wall precast block includes a top wall first-end precast block 4 and a top wall end precast block 5. The installation height of the top wall first-end precast block 4 is higher than that of the top wall end precast block 5. After the top wall first-end precast block 4, the top wall fitting block, and the top wall end precast block 5 are installed, they form an inclined angle relative to the horizontal plane. As Figure 1 shown, the top wall end precast block 5 and the top wall fitting block have exactly the same structure, and convex structures for fitting and insertion are arranged on their sides. The first-end precast block 4 only needs to open an installation hole at the bottom to cooperate with the steel bars on the top surface of the lower layer for insertion. After the top wall fitting block 5 and the top wall precast block are installed, an inclined plane is formed relative to the horizontal plane as a whole, facilitating rainwater and other water flows to flow downward from the inclined plane from top to bottom.

[0045] In this embodiment, a fitting block inclined plane is formed on the surface of the top wall fitting block 5, and a fitting block edge A extending outward along the lower end of the fitting block inclined plane is formed. The fitting block edge A forms an edge angle of 2-3° relative to the horizontal plane. The middle part of the top wall fitting block 5 is a hollow structure for backfill soil. Its upper surface forms an inclined plane structure, and after the inclined plane extends downward, a fitting block edge A surface is formed. The fitting block edge A forms an inclination angle of 2-3° relative to the horizontal direction of the horizontal plane. This setting method facilitates the downward flow of rainwater on the upper surface and makes it easier to flow out downward from the fitting block edge A.

[0046] In this embodiment, a concrete tenon 61 is poured into the diamond-shaped installation hole 6. A concrete tenon 61 structure is formed in the diamond-shaped installation hole 6 formed after the bottom wall edge block 2 and the middle bottom wall block are installed, making the connection between the two precast blocks more firm and stable. By adopting the method of pouring the concrete tenon 61 by using the diamond-shaped installation hole 6 structure, the precast blocks are along the length direction (i.e., Figure 1In the width direction of the precast bottom slab 1), the combination is more stable. When the wall is subjected to the sliding force in the length direction of its precast blocks, it is not easy to push between the precast blocks, improving the anti-sliding effect of the overall structure.

[0047] A construction method for an assembled wing wall structure, comprising the following steps:

[0048] S1: Clean the construction site. According to the position where the wing wall needs to be installed, hoist and place the precast bottom slab to the designated position; clean the construction site and hoist and install the precast bottom slab 1 to the designated position.

[0049] S2: Install the bottom wall side block 2 and the bottom wall middle block 3 in cooperation with the positioning steel bars 11 on the precast bottom slab 1. After installation, through the grouting sleeve process, fix the bottom wall side block and the bottom wall middle block to the precast bottom slab. Pour in-situ lightweight concrete into the diamond-shaped installation holes 6 between the bottom wall side block and the bottom wall middle block and between the bottom wall middle block and the bottom wall middle block to form concrete tenons 61; after the bottom wall precast blocks are positioned and installed in cooperation with the precast bottom slab, ensure the stable connection between components through the grouting sleeve process. Of course, in order to further improve the connection strength between the precast blocks, long steel bars can be set on the precast bottom slab. The long steel bars are arranged perpendicular to the upper surface of the precast bottom slab 1 and can pass through the diamond-shaped installation holes 6, so that after the overall structure is completed, the overall structure is more stable in the height direction. With the setting of the precast block concrete tenon 61 structure, the force-bearing performance of the overall structure in multiple directions is further improved.

[0050] S3: Fill and compact the soil 7 in the bottom wall side block 2 and the bottom wall middle block 3; after the installation construction of the bottom wall side block 2 and the bottom wall middle block 3 is completed, fill and compact the soil, which can improve the anti-sliding effect of its overall structure. Of course, whether to fill the soil in its structure is operated according to the on-site use requirements.

[0051] S4: Install the wall body layer on the wall bottom layer and make the wall body layer firmly installed on the wall bottom layer through the grouting sleeve process; the overall structure of the wall body layer is the same as that of the wall bottom layer. After the construction of the wall bottom layer is completed, the wall body layer is constructed layer by layer from bottom to top;

[0052] S5: Install the top wall precast block and the top wall fitting block on the topmost wall body layer through the grouting sleeve process, fill and compact the soil in the top wall precast block and the top wall fitting block, and carry out surface concrete construction treatment to form the wall top surface 8. Each block of the top wall layer is installed according to the corresponding position and constructed using the same grouting sleeve process. After the construction of the precast blocks of the top wall layer is completed, fill and compact the soil and then carry out concrete construction on its surface to form the wall top surface 8 on the soil surface.

[0053] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. An assembled wing wall structure, characterized in that: It includes a prefabricated bottom plate, a wall bottom layer installed on the prefabricated bottom plate, a wall body layer and a wall top layer installed on the top of the wall body layer; the wall body layer is multi-layered and the multi-layer wall body layers are installed in sequence from bottom to top, the wall top layer includes a wall top prefabricated block installed on the wall body layer and a wall top embedded block, the wall top prefabricated blocks are two and the wall top embedded block is arranged between the two wall top prefabricated blocks.

2. The assembled wing wall structure according to claim 1, characterized in that: The wall bottom layer comprises a wall bottom side block and a wall bottom middle block installed on the prefabricated bottom plate, and the bottoms of the wall bottom side block and the wall bottom middle block are both provided with bottom block positioning holes for positioning and installing in cooperation with the prefabricated bottom plate.

3. The assembled wing wall structure according to claim 2 is characterized in that: The protrusions on the wall bottom side blocks form side block protrusions, and the protrusions on the wall bottom middle blocks form middle block protrusions. After the wall bottom side blocks and the wall bottom middle blocks are plugged and installed, diamond-shaped installation holes are formed between the side block protrusions and the middle block protrusions.

4. The assembled wing wall structure according to claim 1, characterized in that: The wall body layer has the same structure as the wall bottom layer, and the wall body layers are inserted in sequence from bottom to top.

5. The assembled wing wall structure according to claim 1, characterized in that: The wall top prefabricated blocks include a wall top head end prefabricated block and a wall top tail end prefabricated block. The installation height of the wall top head end prefabricated block is higher than the installation height of the wall top tail end prefabricated block. After installation, the wall top head end prefabricated block, the wall top mosaic block and the wall top tail end prefabricated block form an inclined angle relative to the horizontal plane.

6. The assembled wing wall structure according to claim 2, characterized in that: The surface of the wall top embedding block is formed with an embedding block slope and an embedding block edge extending outward from the lower end of the embedding block slope, and the embedding block edge is inclined relative to the horizontal plane to form an edge angle of 2-3°.

7. The assembled wing wall structure according to claim 3 is characterized in that: Concrete tenons are cast in the diamond-shaped installation holes.

8. A construction method for the assembled wing wall structure according to any one of claims 1 to 7, characterized in that: The following steps are involved: S1: Clean the construction site and place the prefabricated base plate to the designated location according to the location where the wing wall needs to be installed; S2: Install the wall bottom edge block and the wall bottom middle block in conjunction with the positioning steel bars on the prefabricated bottom plate. After installation, the wall bottom edge block and the wall bottom middle block are fixedly connected to the prefabricated bottom plate through a grouting sleeve process. Cast-in-place lightweight concrete is used in the diamond-shaped installation holes between the wall bottom edge block and the wall bottom middle block and between the wall bottom middle blocks to form concrete tenons. S3: Fill and compact the wall bottom side blocks and the wall bottom middle blocks; S4: Install the wall body layer onto the wall bottom layer, and use the grouting sleeve process to ensure that the wall body layer and the wall bottom layer are firmly installed; S5: The wall top prefabricated blocks and the wall top embedded blocks are installed on the uppermost wall layer through the grouting sleeve process, and the wall top prefabricated blocks and the wall top embedded blocks are filled and compacted, and the surface concrete construction treatment is performed to form the wall top surface.

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